commit

.github/FUNDING.yml

@@ -1 +1,3 @@
 github: [Yuvi9587]
+ko_fi: yuvi427183
+buy_me_a_coffee: yuvi9587

LICENSE

@@ -1,11 +1,21 @@
-Custom License - No Commercial Use
+MIT License
 
-Copyright [Yuvi9587] [2025]
+Copyright (c) [2025] [Yuvi9587]
 
-Permission is hereby granted to any person obtaining a copy of this software and associated documentation files (the "Software"), to use, copy, modify, and distribute the Software for **non-commercial purposes only**, subject to the following conditions:
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
 
-1. The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
-2. Proper credit must be given to the original author in any public use, distribution, or derivative works.
-3. Commercial use, resale, or sublicensing of the Software or any derivative works is strictly prohibited without explicit written permission.
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
 
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND...
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

data/dejavu-sans/DejaVu Fonts License.txt

@@ -0,0 +1,97 @@
+Fonts are (c) Bitstream (see below). DejaVu changes are in public domain.
+Glyphs imported from Arev fonts are (c) Tavmjong Bah (see below)
+
+Bitstream Vera Fonts Copyright
+------------------------------
+
+Copyright (c) 2003 by Bitstream, Inc. All Rights Reserved. Bitstream Vera is
+a trademark of Bitstream, Inc.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of the fonts accompanying this license ("Fonts") and associated
+documentation files (the "Font Software"), to reproduce and distribute the
+Font Software, including without limitation the rights to use, copy, merge,
+publish, distribute, and/or sell copies of the Font Software, and to permit
+persons to whom the Font Software is furnished to do so, subject to the
+following conditions:
+
+The above copyright and trademark notices and this permission notice shall
+be included in all copies of one or more of the Font Software typefaces.
+
+The Font Software may be modified, altered, or added to, and in particular
+the designs of glyphs or characters in the Fonts may be modified and
+additional glyphs or characters may be added to the Fonts, only if the fonts
+are renamed to names not containing either the words "Bitstream" or the word
+"Vera".
+
+This License becomes null and void to the extent applicable to Fonts or Font
+Software that has been modified and is distributed under the "Bitstream
+Vera" names.
+
+The Font Software may be sold as part of a larger software package but no
+copy of one or more of the Font Software typefaces may be sold by itself.
+
+THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF COPYRIGHT, PATENT,
+TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL BITSTREAM OR THE GNOME
+FOUNDATION BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, INCLUDING
+ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
+THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM OTHER DEALINGS IN THE
+FONT SOFTWARE.
+
+Except as contained in this notice, the names of Gnome, the Gnome
+Foundation, and Bitstream Inc., shall not be used in advertising or
+otherwise to promote the sale, use or other dealings in this Font Software
+without prior written authorization from the Gnome Foundation or Bitstream
+Inc., respectively. For further information, contact: fonts at gnome dot
+org. 
+
+Arev Fonts Copyright
+------------------------------
+
+Copyright (c) 2006 by Tavmjong Bah. All Rights Reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of the fonts accompanying this license ("Fonts") and
+associated documentation files (the "Font Software"), to reproduce
+and distribute the modifications to the Bitstream Vera Font Software,
+including without limitation the rights to use, copy, merge, publish,
+distribute, and/or sell copies of the Font Software, and to permit
+persons to whom the Font Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright and trademark notices and this permission notice
+shall be included in all copies of one or more of the Font Software
+typefaces.
+
+The Font Software may be modified, altered, or added to, and in
+particular the designs of glyphs or characters in the Fonts may be
+modified and additional glyphs or characters may be added to the
+Fonts, only if the fonts are renamed to names not containing either
+the words "Tavmjong Bah" or the word "Arev".
+
+This License becomes null and void to the extent applicable to Fonts
+or Font Software that has been modified and is distributed under the 
+"Tavmjong Bah Arev" names.
+
+The Font Software may be sold as part of a larger software package but
+no copy of one or more of the Font Software typefaces may be sold by
+itself.
+
+THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
+OF COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL
+TAVMJONG BAH BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
+DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM
+OTHER DEALINGS IN THE FONT SOFTWARE.
+
+Except as contained in this notice, the name of Tavmjong Bah shall not
+be used in advertising or otherwise to promote the sale, use or other
+dealings in this Font Software without prior written authorization
+from Tavmjong Bah. For further information, contact: tavmjong @ free
+. fr.

features.md

@@ -1,192 +1,391 @@
-# Kemono Downloader - Feature Guide
-This guide provides a comprehensive overview of all user interface elements, input fields, buttons, popups, and functionalities available in the Kemono Downloader.
+<div>
+  <h1>Kemono Downloader - Comprehensive Feature Guide</h1>
+  <p>This guide provides a detailed overview of all user interface elements, input fields, buttons, popups, and functionalities available in the application.</p>
+  <hr>
 
-## 1. Main Interface & Workflow
-These are the primary controls you'll interact with to initiate and manage downloads.
+  <h2><strong>1. URL Input (🔗)</strong></h2>
+  <p>This is the primary input field where you specify the content you want to download.</p>
 
-### 1.1. Core Inputs
-**🔗 Creator/Post URL Input Field**  
-- **Purpose**: Paste the URL of the content you want to download.  
-- **Supported Sites**: Kemono.su, Coomer.party, Simpcity.su.  
-- **Supported URL Types**:  
-  - Creator pages (e.g., `https://kemono.su/patreon/user/12345`).  
-  - Individual posts (e.g., `https://kemono.su/patreon/user/12345/post/98765`).  
-- **Note**: When ⭐ Favorite Mode is active, this field is disabled. For Simpcity.su URLs, the "Use Cookie" option is mandatory and auto-enabled.
+  <p><strong>Functionality:</strong></p>
+  <ul>
+    <li><strong>Creator URL:</strong> A link to a creator's main page (e.g., https://kemono.su/patreon/user/12345). Downloads all posts from the creator.</li>
+    <li><strong>Post URL:</strong> A direct link to a specific post (e.g., .../post/98765). Downloads only the specified post.</li>
+  </ul>
 
-**🎨 Creator Selection Button**  
-- **Icon**: 🎨 (Artist Palette)  
-- **Purpose**: Opens the "Creator Selection" dialog to browse and queue downloads from known creators.  
-- **Dialog Features**:  
-  - Loads creators from `creators.json`.  
-  - **Search Bar**: Filter creators by name.  
-  - **Creator List**: Displays creators with their service (e.g., Patreon, Fanbox).  
-  - **Selection**: Checkboxes to select one or more creators.  
-  - **Download Scope**: Organize downloads by Characters or Creators.  
-  - **Add to Queue**: Adds selected creators or their posts to the download queue.
+  <p><strong>Interaction with Other Features:</strong> The content of this field influences "Manga Mode" and "Page Range". "Page Range" is enabled only with a creator URL.</p>
 
-**Page Range (Start to End) Input Fields**  
-- **Purpose**: Specify a range of pages to fetch for creator URLs.  
-- **Usage**: Enter the starting and ending page numbers.  
-- **Behavior**:  
-  - If blank, all pages are processed.  
-  - Disabled for single post URLs.
+  <hr>
 
-**📁 Download Location Input Field & Browse Button**  
-- **Purpose**: Specify the main directory for downloaded files.  
-- **Usage**: Type the path or click "Browse..." to select a folder.  
-- **Requirement**: Mandatory for all download operations.
+  <h2><strong>2. Creator Selection & Update (🎨)</strong></h2>
+  <p>The color palette emoji button opens the Creator Selection & Update dialog. This allows managing and downloading from a local creator database.</p>
 
-### 1.2. Action Buttons
-**⬇️ Start Download / 🔗 Extract Links Button**  
-- **Purpose**: Initiates downloading or link extraction.  
-- **Behavior**:  
-  - Shows "🔗 Extract Links" if "Only Links" is selected.  
-  - Otherwise, shows "⬇️ Start Download".  
-  - Supports single-threaded or multi-threaded downloads based on settings.
+  <p><strong>Functionality:</strong></p>
+  <ul>
+    <li><strong>Creator Browser:</strong> Loads a list from <code>creators.json</code>. Search by name, service, or paste a URL to find creators.</li>
+    <li><strong>Batch Selection:</strong> Select multiple creators and click "Add Selected" to add them to the batch download session.</li>
+    <li><strong>Update Checker:</strong> Use a saved profile (.json) to download only new content based on previously fetched posts.</li>
+    <li><strong>Post Fetching & Filtering:</strong> "Fetch Posts" loads post titles, allowing you to choose specific posts for download.</li>
+  </ul>
 
-**🔄 Restore Download Button**  
-- **Visibility**: Appears if an incomplete session is detected on startup.  
-- **Purpose**: Resumes a previously interrupted download session.
+  <hr>
 
-**⏸️ Pause / ▶️ Resume Download Button**  
-- **Purpose**: Pause or resume the ongoing download.  
-- **Behavior**: Toggles between "Pause" and "Resume". Some UI settings can be changed while paused.
+  <h2><strong>3. Download Location Input (📁)</strong></h2>
+  <p>This input defines the destination directory for downloaded files.</p>
 
-**❌ Cancel & Reset UI Button**  
-- **Purpose**: Stops the current operation and performs a "soft" reset.  
-- **Behavior**: Halts background threads, preserves URL and Download Location inputs, resets other settings.
+  <p><strong>Functionality:</strong></p>
+  <ul>
+    <li><strong>Manual Entry:</strong> Enter or paste the folder path.</li>
+    <li><strong>Browse Button:</strong> Opens a system dialog to choose a folder.</li>
+    <li><strong>Directory Creation:</strong> If the folder doesn't exist, the app can create it after user confirmation.</li>
+  </ul>
 
-**🔄 Reset Button (in the log area)**  
-- **Purpose**: Performs a "hard" reset when no operation is active.  
-- **Behavior**: Clears all inputs, resets options to default, and clears logs.
+  <hr>
 
-## 2. Filtering & Content Selection
-These options allow precise control over downloaded content.
+  <h2><strong>4. Filter by Character(s) & Scope Button</strong></h2>
+  <p>Used to download content for specific characters or series and organize them into subfolders.</p>
 
-### 2.1. Content Filtering
-**🎯 Filter by Character(s) Input Field**  
-- **Purpose**: Download content related to specific characters or series.  
-- **Usage**: Enter comma-separated character names.  
-- **Advanced Syntax**:  
-  - `Nami`: Simple filter.  
-  - `(Vivi, Ulti)`: Grouped filter. Matches posts with "Vivi" OR "Ulti". Creates a shared folder like `Vivi Ulti` if subfolders are enabled.  
-  - `(Boa, Hancock)~`: Aliased filter. Treats "Boa" and "Hancock" as the same entity.
+  <p><strong>Input Field (Filter by Character(s)):</strong></p>
+  <ul>
+    <li>Enter comma-separated names (e.g., <code>Tifa, Aerith</code>).</li>
+    <li>Group aliases using parentheses (e.g., <code>(Cloud, Zack)</code>).</li>
+    <li>Names are matched against titles, filenames, or comments.</li>
+    <li>If "Separate Folders by Known.txt" is enabled, the name becomes the subfolder name.</li>
+  </ul>
 
-**Filter: [Type] Button (Character Filter Scope)**  
-- **Purpose**: Defines where the character filter is applied. Cycles on click.  
-- **Options**:  
-  - **Filter: Title** (Default): Matches post titles.  
-  - **Filter: Files**: Matches filenames.  
-  - **Filter: Both**: Checks title first, then filenames.  
-  - **Filter: Comments (Beta)**: Checks filenames, then post comments.
+  <p><strong>Scope Button Modes:</strong></p>
+  <ul>
+    <li><strong>Filter: Title</strong> (default) – Match names in post titles only.</li>
+    <li><strong>Filter: Files</strong> – Match names in filenames only.</li>
+    <li><strong>Filter: Both</strong> – Try title match first, then filenames.</li>
+    <li><strong>Filter: Comments</strong> – Try filenames first, then post comments if no match.</li>
+  </ul>
 
-**🚫 Skip with Words Input Field**  
-- **Purpose**: Exclude posts/files with specified keywords (e.g., `WIP`, `sketch`).
+  <hr>
 
-**Scope: [Type] Button (Skip Words Scope)**  
-- **Purpose**: Defines where skip words are applied. Cycles on click.  
-- **Options**:  
-  - **Scope: Posts** (Default): Skips posts if the title contains a skip word.  
-  - **Scope: Files**: Skips files if the filename contains a skip word.  
-  - **Scope: Both**: Applies both rules.
+  <h2><strong>5. Skip with Words & Scope Button</strong></h2>
+  <p>Prevents downloading content based on keywords.</p>
 
-**✂️ Remove Words from Name Input Field**  
-- **Purpose**: Remove unwanted text from filenames (e.g., `patreon`, `[HD]`).
+  <p><strong>Input Field (Skip with Words):</strong></p>
+  <ul>
+    <li>Enter comma-separated keywords (e.g., <code>WIP, sketch, preview</code>).</li>
+    <li>Matching is case-insensitive.</li>
+    <li>If a keyword matches, the file or post is skipped.</li>
+  </ul>
 
-### 2.2. File Type Filtering
-**Filter Files (Radio Buttons)**  
-- **Purpose**: Select file types to download.  
-- **Options**:  
-  - **All**: All file types.  
-  - **Images/GIFs**: Common image formats.  
-  - **Videos**: Common video formats.  
-  - **🎧 Only Audio**: Common audio formats.  
-  - **📦 Only Archives**: Only `.zip` and `.rar` files.  
-  - **🔗 Only Links**: Extracts external links without downloading files.
+  <p><strong>Scope Button Modes:</strong></p>
+  <ul>
+    <li><strong>Scope: Posts</strong> (default) – Skips post if title contains a keyword.</li>
+    <li><strong>Scope: Files</strong> – Skips individual files with keyword matches.</li>
+    <li><strong>Scope: Both</strong> – Skips entire post if title matches, otherwise filters individual files.</li>
+  </ul>
+</div>
+<div>
+  <h2><strong>Filter File Section (Radio Buttons)</strong></h2>
+  <p>This section uses a group of radio buttons to control the primary download mode, dictating which types of files are targeted. Only one of these modes can be active at a time.</p>
 
-**Skip .zip / Skip .rar Checkboxes**  
-- **Purpose**: Skip downloading `.zip` or `.rar` files.  
-- **Behavior**: Disabled when "📦 Only Archives" is active.
+  <ul>
+    <li>
+      <strong>All:</strong> Default mode. Downloads every file and attachment provided by the API, regardless of type.
+    </li>
+    <li>
+      <strong>Images/GIFs:</strong> Filters for common image formats (<code>.jpg</code>, <code>.png</code>, <code>.gif</code>, <code>.webp</code>), skipping non-image files.
+    </li>
+    <li>
+      <strong>Videos:</strong> Filters for common video formats like <code>.mp4</code>, <code>.webm</code>, and <code>.mov</code>, skipping all others.
+    </li>
+    <li>
+      <strong>Only Archives:</strong> Downloads only archive files (<code>.zip</code>, <code>.rar</code>). Disables "Compress to WebP" and unchecks "Skip Archives".
+    </li>
+    <li>
+      <strong>Only Audio:</strong> Filters for common audio formats like <code>.mp3</code>, <code>.wav</code>, and <code>.flac</code>.
+    </li>
+    <li>
+      <strong>Only Links:</strong> Extracts external hyperlinks from post descriptions (e.g., Mega, Google Drive) and displays them in the log. Disables all download options.
+    </li>
+    <li>
+      <strong>More:</strong> Opens the "More Options" dialog to download text-based content instead of media files.
+      <ul>
+        <li><strong>Scope:</strong> Choose to extract from post description or comments.</li>
+        <li><strong>Export Format:</strong> Save text as PDF, DOCX, or TXT.</li>
+        <li><strong>Single PDF:</strong> Optionally compile all text into one PDF.</li>
+      </ul>
+    </li>
+  </ul>
 
-## 3. Download Customization
-Options to refine the download process and output.
+  <hr>
 
-- **Download Thumbnails Only**: Downloads small preview images instead of full-resolution files.  
-- **Scan Content for Images**: Scans post HTML for `<img>` tags, crucial for images in descriptions.  
-- **Compress to WebP**: Converts images to WebP format (requires Pillow library).
-- **Keep Duplicates**: Normally, if a post contains multiple files with the same name, only the first is downloaded. Checking this option will download all of them, renaming subsequent unique files with a numeric suffix (e.g., `image_1.jpg`).
-- **🗄️ Custom Folder Name (Single Post Only)**: Specify a custom folder name for a single post's content (appears if subfolders are enabled).
+  <h2><strong>Check Box Buttons</strong></h2>
+  <p>These checkboxes provide additional toggles to refine the download behavior and enable special features.</p>
 
-## 4. 📖 Manga/Comic Mode
-A mode for downloading creator feeds in chronological order, ideal for sequential content.
+  <ul>
+    <li>
+      <strong>⭐ Favorite Mode:</strong> Changes workflow to download from your personal favorites. Disables the URL input.
+      <ul>
+        <li><strong>Favorite Artists:</strong> Opens a dialog to select from your favorited creators.</li>
+        <li><strong>Favorite Posts:</strong> Opens a dialog to select from your favorited posts on Kemono and Coomer.</li>
+      </ul>
+    </li>
+    <li>
+      <strong>Skip Archives:</strong> When checked, archive files (<code>.zip</code>, <code>.rar</code>) are ignored. Disabled in "Only Archives" mode.
+    </li>
+    <li>
+      <strong>Download Thumbnail Only:</strong> Saves only thumbnail previews, not full-resolution files. Enables "Scan Content for Images".
+    </li>
+    <li>
+      <strong>Scan Content for Images:</strong> Parses post HTML for embedded images not listed in the API. Looks for <code>&lt;img&gt;</code> tags and direct image links.
+    </li>
+    <li>
+      <strong>Compress to WebP:</strong> Converts large images (over 1.5 MB) to WebP format using the Pillow library for space-saving.
+    </li>
+    <li>
+      <strong>Keep Duplicates:</strong> Provides control over duplicate handling via the "Duplicate Handling Options" dialog.
+      <ul>
+        <li><strong>Skip by Hash:</strong> Default – skip identical files.</li>
+        <li><strong>Keep Everything:</strong> Save all files regardless of duplication.</li>
+        <li><strong>Limit:</strong> Set a limit on how many copies of the same file are saved. A limit of <code>0</code> means no limit.</li>
+      </ul>
+    </li>
+  </ul>
+</div>
+<h2><strong>Folder Organization Checkboxes</strong></h2>
+<ul>
+  <li>
+    <strong>Separate folders by Known.txt:</strong> Automatically organizes downloads into folders based on name matches.
+    <ul>
+      <li>Uses "Filter by Character(s)" input first, if available.</li>
+      <li>Then checks names in <code>Known.txt</code>.</li>
+      <li>Falls back to extracting from post title.</li>
+    </ul>
+  </li>
+  <li>
+    <strong>Subfolder per post:</strong> Creates a unique folder per post, using the post’s title.
+    <ul>
+      <li>Prevents mixing files from multiple posts.</li>
+      <li>Can be combined with Known.txt-based folders.</li>
+      <li>Ensures uniqueness (e.g., <code>My Post Title_1</code>).</li>
+      <li>Automatically removes empty folders.</li>
+    </ul>
+  </li>
+  <li>
+    <strong>Date prefix:</strong> Enabled only with "Subfolder per post". Prepends the post date (e.g., <code>2025-08-03 My Post Title</code>) for chronological sorting.
+  </li>
+</ul>
 
-- **Activation**: Active when downloading a creator's entire feed (not a single post).  
-- **Core Behavior**: Fetches all posts, processing from oldest to newest.  
-- **Filename Style Toggle Button (in the log area)**:  
-  - **Purpose**: Controls file naming in Manga Mode. Cycles on click.  
-  - **Options**:  
-    - **Name: Post Title**: First file named after post title; others keep original names.  
-    - **Name: Original File**: Files keep server-provided names, with optional prefix.  
-    - **Name: Title+G.Num**: Global numbering with post title prefix (e.g., `Chapter 1_001.jpg`).  
-    - **Name: Date Based**: Sequential naming by post date (e.g., `001.jpg`), with optional prefix.  
-    - **Name: Post ID**: Files named after post ID to avoid clashes.  
-    - **Name: Date + Title**: Combines post date and title for filenames.
+<h2><strong>General Functionality Checkboxes</strong></h2>
+<ul>
+  <li>
+    <strong>Use cookie:</strong> Enables login-based access via cookies.
+    <ul>
+      <li>Paste cookie string directly, or browse to select a <code>cookies.txt</code> file.</li>
+      <li>Cookies are used in all authenticated API requests.</li>
+    </ul>
+  </li>
+  <li>
+    <strong>Use Multithreading:</strong> Enables parallel downloading of posts.
+    <ul>
+      <li>Specify the number of worker threads (e.g., 10).</li>
+      <li>Disabled for Manga Mode and Only Links mode.</li>
+    </ul>
+  </li>
+  <li>
+    <strong>Show external links in log:</strong> Adds a secondary log that displays links (e.g., Mega, Dropbox) found in post text.
+  </li>
+  <li>
+    <strong>Manga/Comic mode:</strong> Sorts posts chronologically before download.
+    <ul>
+      <li>Ensures correct page order for comics/manga.</li>
+    </ul>
+    <strong>Scope Button (Name: ...):</strong> Controls filename style:
+    <ul>
+      <li><strong>Name: Post Title</strong> — e.g., <code>Chapter-1.jpg</code></li>
+      <li><strong>Name: Date + Original</strong> — e.g., <code>2025-08-03_filename.png</code></li>
+      <li><strong>Name: Date + Title</strong> — e.g., <code>2025-08-03_Chapter-1.jpg</code></li>
+      <li><strong>Name: Title+G.Num</strong> — e.g., <code>Page_001.jpg</code></li>
+      <li><strong>Name: Date Based</strong> — e.g., <code>001.jpg</code>, with optional prefix</li>
+      <li><strong>Name: Post ID</strong> — uses unique post ID as filename</li>
+    </ul>
+  </li>
+</ul>
+<h2><strong>Start Download</strong></h2>
+<ul>
+  <li>
+    <strong>Default State ("⬇️ Start Download"):</strong> When idle, this button gathers all current settings (URL, filters, checkboxes, etc.) and begins the download process via the DownloadManager.
+  </li>
+  <li>
+    <strong>Restore State:</strong> If an interrupted session is detected, the tooltip will indicate that starting a new download will discard previous session progress.
+  </li>
+  <li>
+    <strong>Update Mode (Phase 1 - "🔄 Check For Updates"):</strong> If a creator profile is loaded, clicking this button will fetch the creator's posts and compare them against your saved profile to identify new content.
+  </li>
+  <li>
+    <strong>Update Mode (Phase 2 - "⬇️ Start Download (X new)"):</strong> After new posts are found, the button text updates to reflect the number. Clicking it downloads only the new content.
+  </li>
+</ul>
 
-## 5. Folder Organization & Known.txt
-Controls for structuring downloaded content.
+<h2><strong>Pause / Resume Download</strong></h2>
+<ul>
+  <li>
+    <strong>While Downloading:</strong> The button toggles between:
+    <ul>
+      <li><strong>"⏸️ Pause Download":</strong> Sets a <code>pause_event</code>, which tells all worker threads to halt their current task and wait.</li>
+      <li><strong>"▶️ Resume Download":</strong> Clears the <code>pause_event</code>, allowing threads to resume their work.</li>
+    </ul>
+  </li>
+  <li>
+    <strong>While Idle:</strong> The button is disabled.
+  </li>
+  <li>
+    <strong>Restore State:</strong> Changes to "🔄 Restore Download", which resumes the last session from saved data.
+  </li>
+</ul>
 
-- **Separate Folders by Name/Title Checkbox**: Enables automatic subfolder creation.  
-- **Subfolder per Post Checkbox**: Creates subfolders for each post, named after the post title.  
-- **Date Prefix for Post Subfolders Checkbox**: When used with "Subfolder per Post," this option prefixes the folder name with the post's upload date (e.g., `2025-07-11 Post Title`), allowing for chronological sorting.
-- **Known.txt Management UI (Bottom Left)**:  
-  - **Purpose**: Manages a local `Known.txt` file for series, characters, or terms used in folder creation.  
-  - **List Display**: Shows primary names from `Known.txt`.  
-  - **➕ Add Button**: Adds names or groups (e.g., `(Character A, Alias B)~`).  
-  - **⤵️ Add to Filter Button**: Select names from `Known.txt` for the character filter.  
-  - **🗑️ Delete Selected Button**: Removes selected names from `Known.txt`.  
-  - **Open Known.txt Button**: Opens the file in the default text editor.  
-  - **❓ Help Button**: Opens this feature guide.  
-  - **📜 History Button**: Views recent download history.
+<h2><strong>Cancel & Reset UI</strong></h2>
+<ul>
+  <li>
+    <strong>Functionality:</strong> Stops downloads gracefully using a <code>cancellation_event</code>. Threads finish current tasks before shutting down.
+  </li>
+  <li>
+    <strong>The Soft Reset:</strong> After cancellation is confirmed by background threads, the UI resets via the <code>download_finished</code> function. Input fields (URL and Download Location) are preserved for convenience.
+  </li>
+  <li>
+    <strong>Restore State:</strong> Changes to "🗑️ Discard Session", which deletes <code>session.json</code> and resets the UI.
+  </li>
+  <li>
+    <strong>Update State:</strong> Changes to "🗑️ Clear Selection", unloading the selected creator profile and returning to normal UI state.
+  </li>
+</ul>
 
-## 6. ⭐ Favorite Mode (Kemono.su Only)
-Download from favorited artists/posts on Kemono.su.
+<h2><strong>Error Button</strong></h2>
+<ul>
+  <li>
+    <strong>Error Counter:</strong> Shows how many files failed to download (e.g., <code>(3) Error</code>). Disabled if there are no errors.
+  </li>
+  <li>
+    <strong>Error Dialog:</strong> Clicking opens the "Files Skipped Due to Errors" dialog (defined in <code>ErrorFilesDialog.py</code>), listing all failed files.
+  </li>
+  <li>
+    <strong>Dialog Features:</strong>
+    <ul>
+      <li><strong>View Failed Files:</strong> Shows filenames and related post info.</li>
+      <li><strong>Select and Retry:</strong> Retry selected failed files in a focused download session.</li>
+      <li><strong>Export URLs:</strong> Save a <code>.txt</code> file of direct download links. Optionally include post metadata with each URL.</li>
+    </ul>
+  </li>
+</ul>
+<h2><strong>"Known Area" and its Controls</strong></h2>
+<p>This section, located on the right side of the main window, manages your personal name database (<code>Known.txt</code>), which the app uses to organize downloads into subfolders.</p>
 
-- **Enable Checkbox ("⭐ Favorite Mode")**:  
-  - Switches to Favorite Mode.  
-  - Disables the main URL input.  
-  - Changes action buttons to "Favorite Artists" and "Favorite Posts".  
-  - Requires cookies.  
-- **🖼️ Favorite Artists Button**: Select and download from favorited artists.  
-- **📄 Favorite Posts Button**: Select and download specific favorited posts.  
-- **Favorite Download Scope Button**:  
-  - **Scope: Selected Location**: Downloads favorites to the main directory.  
-  - **Scope: Artist Folders**: Creates subfolders per artist.
+<ul>
+  <li>
+    <strong>Open Known.txt:</strong> Opens the <code>Known.txt</code> file in your system's default text editor for manual editing, such as bulk changes or cleanup.
+  </li>
+  <li>
+    <strong>Search character input:</strong> A live search filter that hides any list items not matching your input text. Useful for quickly locating specific names in large lists.
+  </li>
+  <li>
+    <strong>Known Series/Characters Area:</strong> Displays all names currently stored in your <code>Known.txt</code>. These names are used when "Separate folders by Known.txt" is enabled.
+  </li>
+  <li>
+    <strong>Input at bottom & Add button:</strong> Type a new character or series name into the input field, then click "➕ Add". The app checks for duplicates, updates the list, and saves to <code>Known.txt</code>.
+  </li>
+  <li>
+    <strong>Add to Filter:</strong> Opens a dialog showing all entries from <code>Known.txt</code> with checkboxes. You can select one or more to auto-fill the "Filter by Character(s)" field at the top of the app.
+  </li>
+  <li>
+    <strong>Delete Selected:</strong> Select one or more entries from the list and click "🗑️ Delete Selected" to remove them from the app and update <code>Known.txt</code> accordingly.
+  </li>
+</ul>
 
-## 7. Advanced Settings & Performance
-- **🍪 Cookie Management**:  
-  - **Use Cookie Checkbox**: Enables cookies for restricted content.  
-  - **Cookie Text Field**: Paste cookie string.  
-  - **Browse... Button**: Select a `cookies.txt` file (Netscape format).  
-- **Use Multithreading Checkbox & Threads Input**:  
-  - **Purpose**: Configures simultaneous operations.  
-  - **Behavior**: Sets concurrent post processing (creator feeds) or file downloads (single posts).  
-- **Multi-part Download Toggle Button**:  
-  - **Purpose**: Enables/disables multi-segment downloading for large files.  
-  - **Note**: Best for large files; less efficient for small files.
+<h2><strong>Other Buttons</strong></h2>
+<ul>
+  <li>
+    <strong>(?_?) mark button (Help Guide):</strong> Opens a multi-page help dialog with step-by-step instructions and explanations for all app features. Useful for new users.
+  </li>
+  <li>
+    <strong>History Button:</strong> Opens the Download History dialog (from <code>DownloadHistoryDialog.py</code>), showing:
+    <ul>
+      <li>Recently downloaded files</li>
+      <li>The first few posts processed in the last session</li>
+    </ul>
+    This allows for a quick review of recent activity.
+  </li>
+  <li>
+    <strong>Settings Button:</strong> Opens the Settings dialog (from <code>FutureSettingsDialog.py</code>), where you can change app-wide settings such as theme (light/dark) and language.
+  </li>
+  <li>
+    <strong>Support Button:</strong> Opens the Support dialog (from <code>SupportDialog.py</code>), which includes developer info, source links, and donation platforms like Ko-fi or Patreon.
+  </li>
+</ul>
+<h2><strong>Log Area Controls</strong></h2>
+<p>These controls are located around the main log panel and offer tools for managing downloads, configuring advanced options, and resetting the application.</p>
 
-## 8. Logging, Monitoring & Error Handling
-- **📜 Progress Log Area**: Displays messages, progress, and errors.  
-- **👁️ / 🙈 Log View Toggle Button**: Switches between Progress Log and Missed Character Log (skipped posts).  
-- **Show External Links in Log**: Displays external links (e.g., Mega, Google Drive) in a secondary panel.  
-- **Export Links Button**: Saves extracted links to a `.txt` file in "Only Links" mode.  
-- **Download Extracted Links Button**: Downloads files from supported external links in "Only Links" mode.  
-- **🆘 Error Button & Dialog**:  
-  - **Purpose**: Active if files fail to download. The button will display a live count of failed files (e.g., **(3) Error**).  
-  - **Dialog Features**:  
-    - Lists failed files.  
-    - Retry failed downloads.  
-    - Export failed URLs to a text file.
+<ul>
+  <li>
+    <strong>Multi-part: OFF</strong><br>
+    This button acts as both a status indicator and a configuration panel for multi-part downloading (parallel downloading of large files).
+    <ul>
+      <li><strong>Function:</strong> Opens the <code>Multipart Download Options</code> dialog (defined in <code>MultipartScopeDialog.py</code>).</li>
+      <li><strong>Scope Options:</strong> Choose between "Videos Only", "Archives Only", or "Both".</li>
+      <li><strong>Number of parts:</strong> Set how many simultaneous connections to use (2–16).</li>
+      <li><strong>Minimum file size:</strong> Set a threshold (MB) below which files are downloaded normally.</li>
+      <li><strong>Status:</strong> After applying settings, the button's text updates (e.g., <code>Multi-part: Both</code>); otherwise, it resets to <code>Multi-part: OFF</code>.</li>
+    </ul>
+  </li>
 
-## 9. Application Settings (⚙️)
-- **Appearance**: Switch between Light and Dark themes.  
-- **Language**: Change UI language (restart required).
+  <li>
+    <strong>👁️ Eye Emoji Button (Log View Toggle)</strong><br>
+    Switches between two views in the log panel:
+    <ul>
+      <li><strong>👁️ Progress Log View:</strong> Shows real-time download progress, status messages, and errors.</li>
+      <li><strong>🚫 Missed Character View:</strong> Displays names detected in posts that didn’t match the current filter — useful for updating <code>Known.txt</code>.</li>
+    </ul>
+  </li>
+
+  <li>
+    <strong>Reset Button</strong><br>
+    Performs a full "soft reset" of the UI when the application is idle.
+    <ul>
+      <li>Clears all inputs (except saved Download Location)</li>
+      <li>Resets checkboxes, buttons, and logs</li>
+      <li>Clears counters, queues, and restores the UI to its default state</li>
+      <li><strong>Note:</strong> This is different from <em>Cancel & Reset UI</em>, which halts active downloads</li>
+    </ul>
+  </li>
+</ul>
+
+<h3><strong>The Progress Log and "Only Links" Mode Controls</strong></h3>
+
+<ul>
+  <li>
+    <strong>Standard Mode (Progress Log)</strong><br>
+    This is the default behavior. The <code>main_log_output</code> field displays:
+    <ul>
+      <li>Post processing steps</li>
+      <li>Download/skipped file notifications</li>
+      <li>Error messages</li>
+      <li>Session summaries</li>
+    </ul>
+  </li>
+
+  <li>
+    <strong>"Only Links" Mode</strong><br>
+    When enabled, the log panel switches modes and reveals new controls.
+    <ul>
+      <li><strong>📜 Extracted Links Log:</strong> Replaces progress info with a list of found external links (e.g., Mega, Dropbox).</li>
+      <li><strong>Export Links Button:</strong> Saves the extracted links to a <code>.txt</code> file.</li>
+      <li><strong>Download Button:</strong> Opens the <code>Download Selected External Links</code> dialog (from <code>DownloadExtractedLinksDialog.py</code>), where you can:
+        <ul>
+          <li>View all supported external links</li>
+          <li>Select which ones to download</li>
+          <li>Begin download directly from cloud services</li>
+        </ul>
+      </li>
+      <li><strong>Links View Button:</strong> Toggles log display between:
+        <ul>
+          <li><strong>🔗 Links View:</strong> Shows all extracted links</li>
+          <li><strong>⬇️ Progress View:</strong> Shows download progress from external services (e.g., Mega)</li>
+        </ul>
+      </li>
+    </ul>
+  </li>
+</ul>

readme.md

@@ -1,4 +1,4 @@
-<h1 align="center">Kemono Downloader v6.0.0</h1>
+<h1 align="center">Kemono Downloader </h1>
 
 <div align="center">
 
@@ -41,107 +41,53 @@ Built with PyQt5, this tool is designed for users who want deep filtering capabi
 
 </div>
 
----
+<h2><strong>Core Capabilities Overview</strong></h2>
 
-## Feature Overview
+<h3><strong>High-Performance Downloading</strong></h3>
+<ul>
+  <li><strong>Multi-threading:</strong> Processes multiple posts simultaneously to greatly accelerate downloads from large creator profiles.</li>
+  <li><strong>Multi-part Downloading:</strong> Splits large files into chunks and downloads them in parallel to maximize speed.</li>
+  <li><strong>Resilience:</strong> Supports pausing, resuming, and restoring downloads after crashes or interruptions.</li>
+</ul>
 
-Kemono Downloader offers a range of features to streamline your content downloading experience:
+<h3><strong>Advanced Filtering & Content Control</strong></h3>
+<ul>
+  <li><strong>Content Type Filtering:</strong> Select whether to download all files or limit to images, videos, audio, or archives only.</li>
+  <li><strong>Keyword Skipping:</strong> Automatically skips posts or files containing certain keywords (e.g., "WIP", "sketch").</li>
+  <li><strong>Character Filtering:</strong> Restricts downloads to posts that match specific character or series names.</li>
+</ul>
 
-- **User-Friendly Interface:** A modern PyQt5 GUI for easy navigation and operation.
+<h3><strong>File Organization & Renaming</strong></h3>
+<ul>
+  <li><strong>Automated Subfolders:</strong> Automatically organizes downloaded files into subdirectories based on character names or per post.</li>
+  <li><strong>Advanced File Renaming:</strong> Flexible renaming options, especially in Manga Mode, including:
+    <ul>
+      <li><strong>Post Title:</strong> Uses the post's title (e.g., <code>Chapter-One.jpg</code>).</li>
+      <li><strong>Date + Original Name:</strong> Prepends the publication date to the original filename.</li>
+      <li><strong>Date + Title:</strong> Combines the date with the post title.</li>
+      <li><strong>Sequential Numbering (Date Based):</strong> Simple sequence numbers (e.g., <code>001.jpg</code>, <code>002.jpg</code>).</li>
+      <li><strong>Title + Global Numbering:</strong> Uses post title with a globally incrementing number across the session.</li>
+      <li><strong>Post ID:</strong> Names files using the post’s unique ID.</li>
+    </ul>
+  </li>
+</ul>
 
-- **Flexible Downloading:**
-  - Download content from Kemono.su (and mirrors) and Coomer.party (and mirrors).
-  - Supports creator pages (with page range selection) and individual post URLs.
-  - Standard download controls: Start, Pause, Resume, and Cancel.
+<h3><strong>Specialized Modes</strong></h3>
+<ul>
+  <li><strong>Manga/Comic Mode:</strong> Sorts posts chronologically before downloading to ensure pages appear in the correct sequence.</li>
+  <li><strong>Favorite Mode:</strong> Connects to your account and downloads from your favorites list (artists or posts).</li>
+  <li><strong>Link Extraction Mode:</strong> Extracts external links from posts for export or targeted downloading.</li>
+  <li><strong>Text Extraction Mode:</strong> Saves post descriptions or comment sections as <code>PDF</code>, <code>DOCX</code>, or <code>TXT</code> files.</li>
+</ul>
 
-- **Powerful Filtering:**
-  - **Character Filtering:** Filter content by character names. Supports simple comma-separated names and grouped names for shared folders.
-  - **Keyword Skipping:** Skip posts or files based on specified keywords.
-  - **Filename Cleaning:** Remove unwanted words or phrases from downloaded filenames.
-  - **File Type Selection:** Choose to download all files, or limit to images/GIFs, videos, audio, or archives. Can also extract external links only.
-
-- **Customizable Downloads:**
-  - **Thumbnails Only:** Option to download only small preview images.
-  - **Content Scanning:** Scan post HTML for `<img>` tags and direct image links, useful for images embedded in descriptions.
-  - **WebP Conversion:** Convert images to WebP format for smaller file sizes (requires Pillow library).
-
-- **Organized Output:**
-  - **Automatic Subfolders:** Create subfolders based on character names (from filters or `Known.txt`) or post titles.
-  - **Per-Post Subfolders:** Option to create an additional subfolder for each individual post.
-
-- **Manga/Comic Mode:**
-  - Downloads posts from a creator's feed in chronological order (oldest to newest).
-  - Offers various filename styling options for sequential reading (e.g., post title, original name, global numbering).
-
-- **⭐ Favorite Mode:**
-  - Directly download from your favorited artists and posts on Kemono.su.
-  - Requires a valid cookie and adapts the UI for easy selection from your favorites.
-  - Supports downloading into a single location or artist-specific subfolders.
-
-- **Performance & Advanced Options:**
-  - **Cookie Support:** Use cookies (paste string or load from `cookies.txt`) to access restricted content.
-  - **Multithreading:** Configure the number of simultaneous downloads/post processing threads for improved speed.
-
-- **Logging:**
-  - A detailed progress log displays download activity, errors, and summaries.
-
-- **Multi-language Interface:** Choose from several languages for the UI (English, Japanese, French, Spanish, German, Russian, Korean, Chinese Simplified).
-
-- **Theme Customization:** Selectable Light and Dark themes for user comfort.
-
----
-
-## ✨ What's New in v6.0.0
-
-This release focuses on providing more granular control over file organization and improving at-a-glance status monitoring.
-
-### New Features
-
-- **Live Error Count on Button**  
-  The **"Error" button** now dynamically displays the number of failed files during a download. Instead of opening the dialog, you can quickly see a live count like `(3) Error`, helping you track issues at a glance.
-
-- **Date Prefix for Post Subfolders**  
-  A new checkbox labeled **"Date Prefix"** is now available in the advanced settings.  
-  When enabled alongside **"Subfolder per Post"**, it prepends the post's upload date to the folder name (e.g., `2025-07-11 Post Title`).  
-  This makes your downloads sortable and easier to browse chronologically.
-
-- **Keep Duplicates Within a Post**  
-  A **"Keep Duplicates"** option has been added to preserve all files from a post — even if some have the same name.  
-  Instead of skipping or overwriting, the downloader will save duplicates with numbered suffixes (e.g., `image.jpg`, `image_1.jpg`, etc.), which is especially useful when the same file name points to different media.
-
-### Bug Fixes
-
-- The downloader now correctly renames large `.part` files when completed, avoiding leftover temp files.
-- The list of failed files shown in the Error Dialog is now saved and restored with your session — so no errors get lost if you close the app.
-- Your selected download location is remembered, even after pressing the **Reset** button.
-- The **Cancel** button is now enabled when restoring a pending session, so you can abort stuck jobs more easily.
-- Internal cleanup logs (like "Deleting post cache") are now excluded from the final download summary for clarity.
-
----
-
-## 📅 Next Update Plans
-
-### 🔖 Post Tag Filtering (Planned for v6.1.0)
-
-A powerful new **"Filter by Post Tags"** feature is planned:
-
-- Filter and download content based on specific post tags.
-- Combine tag filtering with current filters (character, file type, etc.).
-- Use tag presets to automate frequent downloads.
-
-This will provide **much greater control** over what gets downloaded, especially for creators who use tags consistently.
-
-### 📁 Creator Download History (.json Save)
-
-To streamline incremental downloads, a new system will allow the app to:
-
-- Save a `.json` file with metadata about already-downloaded posts.
-- Compare that file on future runs, so only **new** posts are downloaded.
-- Avoids duplication and makes regular syncs fast and efficient.
-
-Ideal for users managing large collections or syncing favorites regularly.
-
----
+<h3><strong>Utility & Advanced Features</strong></h3>
+<ul>
+  <li><strong>Cookie Support:</strong> Enables access to subscriber-only content via browser session cookies.</li>
+  <li><strong>Duplicate Detection:</strong> Prevents saving duplicate files using content-based comparison, with configurable limits.</li>
+  <li><strong>Image Compression:</strong> Automatically converts large images to <code>.webp</code> to reduce disk usage.</li>
+  <li><strong>Creator Management:</strong> Built-in creator browser and update checker for downloading only new posts from saved profiles.</li>
+  <li><strong>Error Handling:</strong> Tracks failed downloads and provides a retry dialog with options to export or redownload missing files.</li>
+</ul>
 
 ## 💻 Installation
 
@@ -153,7 +99,7 @@ Ideal for users managing large collections or syncing favorites regularly.
 ### Install Dependencies
 
 ```bash
-pip install PyQt5 requests Pillow mega.py
+pip install PyQt5 requests Pillow mega.py fpdf2 python-docx
 ```
 
 ### Running the Application
@@ -196,7 +142,7 @@ Feel free to fork this repo and submit pull requests for bug fixes, new features
 
 ## License
 
-This project is under the Custom Licence
+This project is under the MIT Licence
 
 ## Star History
 
@@ -208,4 +154,9 @@ This project is under the Custom Licence
       </a>
 </table>
 
-👉 See [features.md](features.md) for the full feature list.
+<p align="center">
+  <a href="https://buymeacoffee.com/yuvi9587">
+    <img src="https://img.shields.io/badge/🍺%20Buy%20Me%20a%20Coffee-FFCCCB?style=for-the-badge&logoColor=black&color=FFDD00" alt="Buy Me a Coffee">
+  </a>
+</p>
+

src/config/constants.py

@@ -57,6 +57,10 @@ THEME_KEY = "currentThemeV2"
 SCAN_CONTENT_IMAGES_KEY = "scanContentForImagesV1"
 LANGUAGE_KEY = "currentLanguageV1"
 DOWNLOAD_LOCATION_KEY = "downloadLocationV1"
+RESOLUTION_KEY = "window_resolution"
+UI_SCALE_KEY = "ui_scale_factor"
+SAVE_CREATOR_JSON_KEY = "saveCreatorJsonProfile"
+FETCH_FIRST_KEY = "fetchAllPostsFirst" 
 
 # --- UI Constants and Identifiers ---
 HTML_PREFIX = "<!HTML!>"
@@ -70,7 +74,7 @@ CONFIRM_ADD_ALL_CANCEL_DOWNLOAD = 3
 
 # --- File Type Extensions ---
 IMAGE_EXTENSIONS = {
-    '.jpg', '.jpeg', '.png', '.gif', '.bmp', '.tiff', '.tif', '.webp',
+    '.jpg', '.jpeg', '.jpe', '.png', '.gif', '.bmp', '.tiff', '.tif', '.webp',
     '.heic', '.heif', '.svg', '.ico', '.jfif', '.pjpeg', '.pjp', '.avif'
 }
 VIDEO_EXTENSIONS = {
@@ -94,7 +98,7 @@ FOLDER_NAME_STOP_WORDS = {
     "for", "he", "her", "his", "i", "im", "in", "is", "it", "its",
     "me", "my", "net", "not", "of", "on", "or", "org", "our",
     "s", "she", "so", "the", "their", "they", "this",
-    "to", "ve", "was", "we", "were", "with", "www", "you", "your",
+    "to", "ve", "was", "we", "were", "with", "www", "you", "your", "nsfw", "sfw",
  # add more according to need     
 }
 
@@ -108,6 +112,12 @@ CREATOR_DOWNLOAD_DEFAULT_FOLDER_IGNORE_WORDS = {
     "may", "jun", "june", "jul", "july", "aug", "august", "sep", "september",
     "oct", "october", "nov", "november", "dec", "december",
     "mon", "monday", "tue", "tuesday", "wed", "wednesday", "thu", "thursday",
-    "fri", "friday", "sat", "saturday", "sun", "sunday"
+    "fri", "friday", "sat", "saturday", "sun", "sunday", "Pack", "tier", "spoiler",
+    
+
     # add more according to need 
 }
+
+# --- Duplicate Handling Modes ---
+DUPLICATE_HANDLING_HASH = "hash"      
+DUPLICATE_HANDLING_KEEP_ALL = "keep_all"  

src/core/api_client.py

@@ -1,12 +1,8 @@
-# --- Standard Library Imports ---
 import time
 import traceback
 from urllib.parse import urlparse
-
-# --- Third-Party Library Imports ---
+import json
 import requests
-
-# --- Local Application Imports ---
 from ..utils.network_utils import extract_post_info, prepare_cookies_for_request
 from ..config.constants import (
     STYLE_DATE_POST_TITLE
@@ -15,36 +11,21 @@ from ..config.constants import (
 
 def fetch_posts_paginated(api_url_base, headers, offset, logger, cancellation_event=None, pause_event=None, cookies_dict=None):
     """
-    Fetches a single page of posts from the API with retry logic.
-
-    Args:
-        api_url_base (str): The base URL for the user's posts.
-        headers (dict): The request headers.
-        offset (int): The offset for pagination.
-        logger (callable): Function to log messages.
-        cancellation_event (threading.Event): Event to signal cancellation.
-        pause_event (threading.Event): Event to signal pause.
-        cookies_dict (dict): A dictionary of cookies to include in the request.
-
-    Returns:
-        list: A list of post data dictionaries from the API.
-
-    Raises:
-        RuntimeError: If the fetch fails after all retries or encounters a non-retryable error.
+    Fetches a single page of posts from the API with robust retry logic.
+    NEW: Requests only essential fields to keep the response size small and reliable.
     """
     if cancellation_event and cancellation_event.is_set():
-        logger("   Fetch cancelled before request.")
         raise RuntimeError("Fetch operation cancelled by user.")
     if pause_event and pause_event.is_set():
         logger("   Post fetching paused...")
         while pause_event.is_set():
             if cancellation_event and cancellation_event.is_set():
-                logger("   Post fetching cancelled while paused.")
-                raise RuntimeError("Fetch operation cancelled by user.")
+                raise RuntimeError("Fetch operation cancelled by user while paused.")
             time.sleep(0.5)
         logger("   Post fetching resumed.")
+    fields_to_request = "id,user,service,title,shared_file,added,published,edited,file,attachments,tags"
+    paginated_url = f'{api_url_base}?o={offset}&fields={fields_to_request}'
     
-    paginated_url = f'{api_url_base}?o={offset}'
     max_retries = 3
     retry_delay = 5
 
@@ -52,22 +33,22 @@ def fetch_posts_paginated(api_url_base, headers, offset, logger, cancellation_ev
         if cancellation_event and cancellation_event.is_set():
             raise RuntimeError("Fetch operation cancelled by user during retry loop.")
 
-        log_message = f"   Fetching: {paginated_url} (Page approx. {offset // 50 + 1})"
+        log_message = f"   Fetching post list: {api_url_base}?o={offset} (Page approx. {offset // 50 + 1})"
         if attempt > 0:
             log_message += f" (Attempt {attempt + 1}/{max_retries})"
         logger(log_message)
 
         try:
-            response = requests.get(paginated_url, headers=headers, timeout=(15, 90), cookies=cookies_dict)
+            response = requests.get(paginated_url, headers=headers, timeout=(15, 60), cookies=cookies_dict)
             response.raise_for_status()
-
-            if 'application/json' not in response.headers.get('Content-Type', '').lower():
-                logger(f"⚠️ Unexpected content type from API: {response.headers.get('Content-Type')}. Body: {response.text[:200]}")
-                return []
-
+            response.encoding = 'utf-8'  
             return response.json()
 
-        except (requests.exceptions.Timeout, requests.exceptions.ConnectionError) as e:
+        except requests.exceptions.RequestException as e:
+            if e.response is not None and e.response.status_code == 400:
+                logger(f"   ✅ Reached end of posts (API returned 400 Bad Request for offset {offset}).")
+                return [] 
+
             logger(f"   ⚠️ Retryable network error on page fetch (Attempt {attempt + 1}): {e}")
             if attempt < max_retries - 1:
                 delay = retry_delay * (2 ** attempt)
@@ -76,18 +57,47 @@ def fetch_posts_paginated(api_url_base, headers, offset, logger, cancellation_ev
                 continue
             else:
                 logger(f"   ❌ Failed to fetch page after {max_retries} attempts.")
-                raise RuntimeError(f"Timeout or connection error fetching offset {offset}")
-        except requests.exceptions.RequestException as e:
-            err_msg = f"Error fetching offset {offset}: {e}"
-            if e.response is not None:
-                err_msg += f" (Status: {e.response.status_code}, Body: {e.response.text[:200]})"
-            raise RuntimeError(err_msg)
-        except ValueError as e: # JSON decode error
-            raise RuntimeError(f"Error decoding JSON from offset {offset}: {e}. Response: {response.text[:200]}")
+                raise RuntimeError(f"Network error fetching offset {offset}")
+        except json.JSONDecodeError as e:
+            logger(f"   ❌ Failed to decode JSON on page fetch (Attempt {attempt + 1}): {e}")
+            if attempt < max_retries - 1:
+                delay = retry_delay * (2 ** attempt)
+                logger(f"      Retrying in {delay} seconds...")
+                time.sleep(delay)
+                continue
+            else:
+                raise RuntimeError(f"JSONDecodeError fetching offset {offset}")
 
     raise RuntimeError(f"Failed to fetch page {paginated_url} after all attempts.")
 
 
+def fetch_single_post_data(api_domain, service, user_id, post_id, headers, logger, cookies_dict=None):
+    """
+    --- NEW FUNCTION ---
+    Fetches the full data, including the 'content' field, for a single post.
+    """
+    post_api_url = f"https://{api_domain}/api/v1/{service}/user/{user_id}/post/{post_id}"
+    logger(f"      Fetching full content for post ID {post_id}...")
+    try:
+        with requests.get(post_api_url, headers=headers, timeout=(15, 300), cookies=cookies_dict, stream=True) as response:
+            response.raise_for_status()
+            response_body = b""
+            for chunk in response.iter_content(chunk_size=8192):
+                response_body += chunk
+            
+            full_post_data = json.loads(response_body)
+
+            if isinstance(full_post_data, list) and full_post_data:
+                return full_post_data[0] 
+            if isinstance(full_post_data, dict) and 'post' in full_post_data:
+                return full_post_data['post'] 
+            return full_post_data 
+            
+    except Exception as e:
+        logger(f"      ❌ Failed to fetch full content for post {post_id}: {e}")
+        return None
+
+        
 def fetch_post_comments(api_domain, service, user_id, post_id, headers, logger, cancellation_event=None, pause_event=None, cookies_dict=None):
     """Fetches all comments for a specific post."""
     if cancellation_event and cancellation_event.is_set():
@@ -99,223 +109,257 @@ def fetch_post_comments(api_domain, service, user_id, post_id, headers, logger,
     try:
         response = requests.get(comments_api_url, headers=headers, timeout=(10, 30), cookies=cookies_dict)
         response.raise_for_status()
+        response.encoding = 'utf-8'          
         return response.json()
     except requests.exceptions.RequestException as e:
         raise RuntimeError(f"Error fetching comments for post {post_id}: {e}")
     except ValueError as e:
         raise RuntimeError(f"Error decoding JSON from comments API for post {post_id}: {e}")
 
-def download_from_api (
-api_url_input ,
-logger =print ,
-start_page =None ,
-end_page =None ,
-manga_mode =False ,
-cancellation_event =None ,
-pause_event =None ,
-use_cookie =False ,
-cookie_text ="",
-selected_cookie_file =None ,
-app_base_dir =None ,
-manga_filename_style_for_sort_check =None 
+def download_from_api(
+    api_url_input,
+    logger=print,
+    start_page=None,
+    end_page=None,
+    manga_mode=False,
+    cancellation_event=None,
+    pause_event=None,
+    use_cookie=False,
+    cookie_text="",
+    selected_cookie_file=None,
+    app_base_dir=None,
+    manga_filename_style_for_sort_check=None,
+    processed_post_ids=None,
+    fetch_all_first=False  
 ):
-    headers ={
-    'User-Agent':'Mozilla/5.0',
-    'Accept':'application/json'
+    headers = {
+        'User-Agent': 'Mozilla/5.0',
+        'Accept': 'application/json'
     }
+    if processed_post_ids is None:
+        processed_post_ids = set()
+    else:
+        processed_post_ids = set(processed_post_ids)
 
-    service ,user_id ,target_post_id =extract_post_info (api_url_input )
+    service, user_id, target_post_id = extract_post_info(api_url_input)
 
-    if cancellation_event and cancellation_event .is_set ():
-        logger ("   Download_from_api cancelled at start.")
+    if cancellation_event and cancellation_event.is_set():
+        logger("   Download_from_api cancelled at start.")
         return
 
-    parsed_input_url_for_domain =urlparse (api_url_input )
-    api_domain =parsed_input_url_for_domain .netloc 
-    if not any (d in api_domain .lower ()for d in ['kemono.su','kemono.party','coomer.su','coomer.party']):
-        logger (f"⚠️ Unrecognized domain '{api_domain }' from input URL. Defaulting to kemono.su for API calls.")
-        api_domain ="kemono.su"
-    cookies_for_api =None 
-    if use_cookie and app_base_dir :
-        cookies_for_api =prepare_cookies_for_request (use_cookie ,cookie_text ,selected_cookie_file ,app_base_dir ,logger ,target_domain =api_domain )
-    if target_post_id :
-        direct_post_api_url =f"https://{api_domain }/api/v1/{service }/user/{user_id }/post/{target_post_id }"
-        logger (f"   Attempting direct fetch for target post: {direct_post_api_url }")
-        try :
-            direct_response =requests .get (direct_post_api_url ,headers =headers ,timeout =(10 ,30 ),cookies =cookies_for_api )
-            direct_response .raise_for_status ()
-            direct_post_data =direct_response .json ()
-            if isinstance (direct_post_data ,list )and direct_post_data :
-                direct_post_data =direct_post_data [0 ]
-            if isinstance (direct_post_data ,dict )and 'post'in direct_post_data and isinstance (direct_post_data ['post'],dict ):
-                 direct_post_data =direct_post_data ['post']
-            if isinstance (direct_post_data ,dict )and direct_post_data .get ('id')==target_post_id :
-                logger (f"   ✅ Direct fetch successful for post {target_post_id }.")
-                yield [direct_post_data ]
+    parsed_input_url_for_domain = urlparse(api_url_input)
+    api_domain = parsed_input_url_for_domain.netloc
+    
+    if not any(d in api_domain.lower() for d in ['kemono.su', 'kemono.party', 'kemono.cr', 'coomer.su', 'coomer.party', 'coomer.st']):
+        logger(f"⚠️ Unrecognized domain '{api_domain}' from input URL. Defaulting to kemono.su for API calls.")
+        api_domain = "kemono.su"
+        
+    cookies_for_api = None
+    if use_cookie and app_base_dir:
+        cookies_for_api = prepare_cookies_for_request(use_cookie, cookie_text, selected_cookie_file, app_base_dir, logger, target_domain=api_domain)
+    if target_post_id:
+        if target_post_id in processed_post_ids:
+            logger(f"   Skipping already processed target post ID: {target_post_id}")
+            return
+        direct_post_api_url = f"https://{api_domain}/api/v1/{service}/user/{user_id}/post/{target_post_id}"
+        logger(f"   Attempting direct fetch for target post: {direct_post_api_url}")
+        try:
+            direct_response = requests.get(direct_post_api_url, headers=headers, timeout=(10, 30), cookies=cookies_for_api)
+            direct_response.raise_for_status()
+            direct_response.encoding = 'utf-8' 
+            direct_post_data = direct_response.json()
+            if isinstance(direct_post_data, list) and direct_post_data:
+                direct_post_data = direct_post_data[0]
+            if isinstance(direct_post_data, dict) and 'post' in direct_post_data and isinstance(direct_post_data['post'], dict):
+                direct_post_data = direct_post_data['post']
+            if isinstance(direct_post_data, dict) and direct_post_data.get('id') == target_post_id:
+                logger(f"   ✅ Direct fetch successful for post {target_post_id}.")
+                yield [direct_post_data]
                 return
-            else :
-                response_type =type (direct_post_data ).__name__ 
-                response_snippet =str (direct_post_data )[:200 ]
-                logger (f"   ⚠️ Direct fetch for post {target_post_id } returned unexpected data (Type: {response_type }, Snippet: '{response_snippet }'). Falling back to pagination.")
-        except requests .exceptions .RequestException as e :
-            logger (f"   ⚠️ Direct fetch failed for post {target_post_id }: {e }. Falling back to pagination.")
-        except Exception as e :
-            logger (f"   ⚠️ Unexpected error during direct fetch for post {target_post_id }: {e }. Falling back to pagination.")
-    if not service or not user_id :
-        logger (f"❌ Invalid URL or could not extract service/user: {api_url_input }")
+            else:
+                response_type = type(direct_post_data).__name__
+                response_snippet = str(direct_post_data)[:200]
+                logger(f"   ⚠️ Direct fetch for post {target_post_id} returned unexpected data (Type: {response_type}, Snippet: '{response_snippet}'). Falling back to pagination.")
+        except requests.exceptions.RequestException as e:
+            logger(f"   ⚠️ Direct fetch failed for post {target_post_id}: {e}. Falling back to pagination.")
+        except Exception as e:
+            logger(f"   ⚠️ Unexpected error during direct fetch for post {target_post_id}: {e}. Falling back to pagination.")
+    if not service or not user_id:
+        logger(f"❌ Invalid URL or could not extract service/user: {api_url_input}")
         return
-    if target_post_id and (start_page or end_page ):
-        logger ("⚠️ Page range (start/end page) is ignored when a specific post URL is provided (searching all pages for the post).")
+    if target_post_id and (start_page or end_page):
+        logger("⚠️ Page range (start/end page) is ignored when a specific post URL is provided (searching all pages for the post).")
 
-    is_manga_mode_fetch_all_and_sort_oldest_first =manga_mode and (manga_filename_style_for_sort_check !=STYLE_DATE_POST_TITLE )and not target_post_id 
-    api_base_url =f"https://{api_domain }/api/v1/{service }/user/{user_id }"
-    page_size =50 
-    if is_manga_mode_fetch_all_and_sort_oldest_first :
-        logger (f"   Manga Mode (Style: {manga_filename_style_for_sort_check if manga_filename_style_for_sort_check else 'Default'} - Oldest First Sort Active): Fetching all posts to sort by date...")
-        all_posts_for_manga_mode =[]
-        current_offset_manga =0 
-        if start_page and start_page >1 :
-            current_offset_manga =(start_page -1 )*page_size 
-            logger (f"   Manga Mode: Starting fetch from page {start_page } (offset {current_offset_manga }).")
-        elif start_page :
-            logger (f"   Manga Mode: Starting fetch from page 1 (offset 0).")
-        if end_page :
-            logger (f"   Manga Mode: Will fetch up to page {end_page }.")
-        while True :
-            if pause_event and pause_event .is_set ():
-                logger ("   Manga mode post fetching paused...")
-                while pause_event .is_set ():
-                    if cancellation_event and cancellation_event .is_set ():
-                        logger ("   Manga mode post fetching cancelled while paused.")
+    is_manga_mode_fetch_all_and_sort_oldest_first = manga_mode and (manga_filename_style_for_sort_check != STYLE_DATE_POST_TITLE) and not target_post_id
+    should_fetch_all = fetch_all_first or is_manga_mode_fetch_all_and_sort_oldest_first  
+    api_base_url = f"https://{api_domain}/api/v1/{service}/user/{user_id}/posts"
+    page_size = 50
+    if is_manga_mode_fetch_all_and_sort_oldest_first:
+        logger(f"   Manga Mode (Style: {manga_filename_style_for_sort_check if manga_filename_style_for_sort_check else 'Default'} - Oldest First Sort Active): Fetching all posts to sort by date...")
+        all_posts_for_manga_mode = []
+        current_offset_manga = 0
+        if start_page and start_page > 1:
+            current_offset_manga = (start_page - 1) * page_size
+            logger(f"   Manga Mode: Starting fetch from page {start_page} (offset {current_offset_manga}).")
+        elif start_page:
+            logger(f"   Manga Mode: Starting fetch from page 1 (offset 0).")
+        if end_page:
+            logger(f"   Manga Mode: Will fetch up to page {end_page}.")
+        while True:
+            if pause_event and pause_event.is_set():
+                logger("   Manga mode post fetching paused...")
+                while pause_event.is_set():
+                    if cancellation_event and cancellation_event.is_set():
+                        logger("   Manga mode post fetching cancelled while paused.")
                         break
-                    time .sleep (0.5 )
-                if not (cancellation_event and cancellation_event .is_set ()):logger ("   Manga mode post fetching resumed.")
-            if cancellation_event and cancellation_event .is_set ():
-                logger ("   Manga mode post fetching cancelled.")
+                    time.sleep(0.5)
+                if not (cancellation_event and cancellation_event.is_set()): logger("   Manga mode post fetching resumed.")
+            if cancellation_event and cancellation_event.is_set():
+                logger("   Manga mode post fetching cancelled.")
                 break
-            current_page_num_manga =(current_offset_manga //page_size )+1 
-            if end_page and current_page_num_manga >end_page :
-                logger (f"   Manga Mode: Reached specified end page ({end_page }). Stopping post fetch.")
+            current_page_num_manga = (current_offset_manga // page_size) + 1
+            if end_page and current_page_num_manga > end_page:
+                logger(f"   Manga Mode: Reached specified end page ({end_page}). Stopping post fetch.")
                 break
-            try :
-                posts_batch_manga =fetch_posts_paginated (api_base_url ,headers ,current_offset_manga ,logger ,cancellation_event ,pause_event ,cookies_dict =cookies_for_api )
-                if not isinstance (posts_batch_manga ,list ):
-                    logger (f"❌ API Error (Manga Mode): Expected list of posts, got {type (posts_batch_manga )}.")
+            try:
+                posts_batch_manga = fetch_posts_paginated(api_base_url, headers, current_offset_manga, logger, cancellation_event, pause_event, cookies_dict=cookies_for_api)
+                if not isinstance(posts_batch_manga, list):
+                    logger(f"❌ API Error (Manga Mode): Expected list of posts, got {type(posts_batch_manga)}.")
                     break
-                if not posts_batch_manga :
-                    logger ("✅ Reached end of posts (Manga Mode fetch all).")
-                    if start_page and not end_page and current_page_num_manga <start_page :
-                        logger (f"   Manga Mode: No posts found on or after specified start page {start_page }.")
-                    elif end_page and current_page_num_manga <=end_page and not all_posts_for_manga_mode :
-                        logger (f"   Manga Mode: No posts found within the specified page range ({start_page or 1 }-{end_page }).")
+                if not posts_batch_manga:
+                    logger("✅ Reached end of posts (Manga Mode fetch all).")
+                    if start_page and not end_page and current_page_num_manga < start_page:
+                        logger(f"   Manga Mode: No posts found on or after specified start page {start_page}.")
+                    elif end_page and current_page_num_manga <= end_page and not all_posts_for_manga_mode:
+                        logger(f"   Manga Mode: No posts found within the specified page range ({start_page or 1}-{end_page}).")
                     break
-                all_posts_for_manga_mode .extend (posts_batch_manga )
-                current_offset_manga +=page_size 
-                time .sleep (0.6 )
-            except RuntimeError as e :
-                if "cancelled by user"in str (e ).lower ():
-                    logger (f"ℹ️ Manga mode pagination stopped due to cancellation: {e }")
-                else :
-                    logger (f"❌ {e }\n   Aborting manga mode pagination.")
+                all_posts_for_manga_mode.extend(posts_batch_manga)
+                
+                logger(f"MANGA_FETCH_PROGRESS:{len(all_posts_for_manga_mode)}:{current_page_num_manga}")
+
+                current_offset_manga += page_size
+                time.sleep(0.6)
+            except RuntimeError as e:
+                if "cancelled by user" in str(e).lower():
+                    logger(f"ℹ️ Manga mode pagination stopped due to cancellation: {e}")
+                else:
+                    logger(f"❌ {e}\n   Aborting manga mode pagination.")
                 break
-            except Exception as e :
-                logger (f"❌ Unexpected error during manga mode fetch: {e }")
-                traceback .print_exc ()
+            except Exception as e:
+                logger(f"❌ Unexpected error during manga mode fetch: {e}")
+                traceback.print_exc()
                 break
-        if cancellation_event and cancellation_event .is_set ():return 
-        if all_posts_for_manga_mode :
-            logger (f"   Manga Mode: Fetched {len (all_posts_for_manga_mode )} total posts. Sorting by publication date (oldest first)...")
-            def sort_key_tuple (post ):
-                published_date_str =post .get ('published')
-                added_date_str =post .get ('added')
-                post_id_str =post .get ('id',"0")
-                primary_sort_val ="0000-00-00T00:00:00"
-                if published_date_str :
-                    primary_sort_val =published_date_str 
-                elif added_date_str :
-                    logger (f"    ⚠️ Post ID {post_id_str } missing 'published' date, using 'added' date '{added_date_str }' for primary sorting.")
-                    primary_sort_val =added_date_str 
-                else :
-                    logger (f"    ⚠️ Post ID {post_id_str } missing both 'published' and 'added' dates. Placing at start of sort (using default earliest date).")
-                secondary_sort_val =0 
-                try :
-                    secondary_sort_val =int (post_id_str )
-                except ValueError :
-                    logger (f"    ⚠️ Post ID '{post_id_str }' is not a valid integer for secondary sorting, using 0.")
-                return (primary_sort_val ,secondary_sort_val )
-            all_posts_for_manga_mode .sort (key =sort_key_tuple )
-            for i in range (0 ,len (all_posts_for_manga_mode ),page_size ):
-                if cancellation_event and cancellation_event .is_set ():
-                    logger ("   Manga mode post yielding cancelled.")
+        
+        if cancellation_event and cancellation_event.is_set(): return
+        
+        if all_posts_for_manga_mode:
+            logger(f"MANGA_FETCH_COMPLETE:{len(all_posts_for_manga_mode)}")
+
+        if all_posts_for_manga_mode:
+            if processed_post_ids:
+                original_count = len(all_posts_for_manga_mode)
+                all_posts_for_manga_mode = [post for post in all_posts_for_manga_mode if post.get('id') not in processed_post_ids]
+                skipped_count = original_count - len(all_posts_for_manga_mode)
+                if skipped_count > 0:
+                    logger(f"   Manga Mode: Skipped {skipped_count} already processed post(s) before sorting.")
+
+            logger(f"   Manga Mode: Fetched {len(all_posts_for_manga_mode)} total posts. Sorting by publication date (oldest first)...")
+            def sort_key_tuple(post):
+                published_date_str = post.get('published')
+                added_date_str = post.get('added')
+                post_id_str = post.get('id', "0")
+                primary_sort_val = "0000-00-00T00:00:00"
+                if published_date_str:
+                    primary_sort_val = published_date_str
+                elif added_date_str:
+                    logger(f"    ⚠️ Post ID {post_id_str} missing 'published' date, using 'added' date '{added_date_str}' for primary sorting.")
+                    primary_sort_val = added_date_str
+                else:
+                    logger(f"    ⚠️ Post ID {post_id_str} missing both 'published' and 'added' dates. Placing at start of sort (using default earliest date).")
+                secondary_sort_val = 0
+                try:
+                    secondary_sort_val = int(post_id_str)
+                except ValueError:
+                    logger(f"    ⚠️ Post ID '{post_id_str}' is not a valid integer for secondary sorting, using 0.")
+                return (primary_sort_val, secondary_sort_val)
+            all_posts_for_manga_mode.sort(key=sort_key_tuple)
+            for i in range(0, len(all_posts_for_manga_mode), page_size):
+                if cancellation_event and cancellation_event.is_set():
+                    logger("   Manga mode post yielding cancelled.")
                     break
-                yield all_posts_for_manga_mode [i :i +page_size ]
+                yield all_posts_for_manga_mode[i:i + page_size]
         return
 
+    if manga_mode and not target_post_id and (manga_filename_style_for_sort_check == STYLE_DATE_POST_TITLE):
+        logger(f"   Manga Mode (Style: {STYLE_DATE_POST_TITLE}): Processing posts in default API order (newest first).")
 
-
-    if manga_mode and not target_post_id and (manga_filename_style_for_sort_check ==STYLE_DATE_POST_TITLE ):
-        logger (f"   Manga Mode (Style: {STYLE_DATE_POST_TITLE }): Processing posts in default API order (newest first).")
-
-    current_page_num =1 
-    current_offset =0 
-    processed_target_post_flag =False 
-    if start_page and start_page >1 and not target_post_id :
-        current_offset =(start_page -1 )*page_size 
-        current_page_num =start_page 
-        logger (f"   Starting from page {current_page_num } (calculated offset {current_offset }).")
-    while True :
-        if pause_event and pause_event .is_set ():
-            logger ("   Post fetching loop paused...")
-            while pause_event .is_set ():
-                if cancellation_event and cancellation_event .is_set ():
-                    logger ("   Post fetching loop cancelled while paused.")
+    current_page_num = 1
+    current_offset = 0
+    processed_target_post_flag = False
+    if start_page and start_page > 1 and not target_post_id:
+        current_offset = (start_page - 1) * page_size
+        current_page_num = start_page
+        logger(f"   Starting from page {current_page_num} (calculated offset {current_offset}).")
+    while True:
+        if pause_event and pause_event.is_set():
+            logger("   Post fetching loop paused...")
+            while pause_event.is_set():
+                if cancellation_event and cancellation_event.is_set():
+                    logger("   Post fetching loop cancelled while paused.")
                     break
-                time .sleep (0.5 )
-            if not (cancellation_event and cancellation_event .is_set ()):logger ("   Post fetching loop resumed.")
-        if cancellation_event and cancellation_event .is_set ():
-            logger ("   Post fetching loop cancelled.")
+                time.sleep(0.5)
+            if not (cancellation_event and cancellation_event.is_set()): logger("   Post fetching loop resumed.")
+        if cancellation_event and cancellation_event.is_set():
+            logger("   Post fetching loop cancelled.")
             break
-        if target_post_id and processed_target_post_flag :
+        if target_post_id and processed_target_post_flag:
             break
-        if not target_post_id and end_page and current_page_num >end_page :
-            logger (f"✅ Reached specified end page ({end_page }) for creator feed. Stopping.")
+        if not target_post_id and end_page and current_page_num > end_page:
+            logger(f"✅ Reached specified end page ({end_page}) for creator feed. Stopping.")
             break
-        try :
-            posts_batch =fetch_posts_paginated (api_base_url ,headers ,current_offset ,logger ,cancellation_event ,pause_event ,cookies_dict =cookies_for_api )
-            if not isinstance (posts_batch ,list ):
-                logger (f"❌ API Error: Expected list of posts, got {type (posts_batch )} at page {current_page_num } (offset {current_offset }).")
+        try:
+            posts_batch = fetch_posts_paginated(api_base_url, headers, current_offset, logger, cancellation_event, pause_event, cookies_dict=cookies_for_api)
+            if not isinstance(posts_batch, list):
+                logger(f"❌ API Error: Expected list of posts, got {type(posts_batch)} at page {current_page_num} (offset {current_offset}).")
                 break
-        except RuntimeError as e :
-            if "cancelled by user"in str (e ).lower ():
-                 logger (f"ℹ️ Pagination stopped due to cancellation: {e }")
-            else :
-                logger (f"❌ {e }\n   Aborting pagination at page {current_page_num } (offset {current_offset }).")
+        except RuntimeError as e:
+            if "cancelled by user" in str(e).lower():
+                logger(f"ℹ️ Pagination stopped due to cancellation: {e}")
+            else:
+                logger(f"❌ {e}\n   Aborting pagination at page {current_page_num} (offset {current_offset}).")
             break
-        except Exception as e :
-            logger (f"❌ Unexpected error fetching page {current_page_num } (offset {current_offset }): {e }")
-            traceback .print_exc ()
+        except Exception as e:
+            logger(f"❌ Unexpected error fetching page {current_page_num} (offset {current_offset}): {e}")
+            traceback.print_exc()
             break
-        if not posts_batch :
-            if target_post_id and not processed_target_post_flag :
-                logger (f"❌ Target post {target_post_id } not found after checking all available pages (API returned no more posts at offset {current_offset }).")
-            elif not target_post_id :
-                if current_page_num ==(start_page or 1 ):
-                     logger (f"😕 No posts found on the first page checked (page {current_page_num }, offset {current_offset }).")
-                else :
-                     logger (f"✅ Reached end of posts (no more content from API at offset {current_offset }).")
+        if processed_post_ids:
+            original_count = len(posts_batch)
+            posts_batch = [post for post in posts_batch if post.get('id') not in processed_post_ids]
+            skipped_count = original_count - len(posts_batch)
+            if skipped_count > 0:
+                logger(f"   Skipped {skipped_count} already processed post(s) from page {current_page_num}.")
+        
+        if not posts_batch:
+            if target_post_id and not processed_target_post_flag:
+                logger(f"❌ Target post {target_post_id} not found after checking all available pages (API returned no more posts at offset {current_offset}).")
+            elif not target_post_id:
+                if current_page_num == (start_page or 1):
+                    logger(f"😕 No posts found on the first page checked (page {current_page_num}, offset {current_offset}).")
+                else:
+                    logger(f"✅ Reached end of posts (no more content from API at offset {current_offset}).")
             break
-        if target_post_id and not processed_target_post_flag :
-            matching_post =next ((p for p in posts_batch if str (p .get ('id'))==str (target_post_id )),None )
-            if matching_post :
-                logger (f"🎯 Found target post {target_post_id } on page {current_page_num } (offset {current_offset }).")
-                yield [matching_post ]
-                processed_target_post_flag =True 
-        elif not target_post_id :
+        if target_post_id and not processed_target_post_flag:
+            matching_post = next((p for p in posts_batch if str(p.get('id')) == str(target_post_id)), None)
+            if matching_post:
+                logger(f"🎯 Found target post {target_post_id} on page {current_page_num} (offset {current_offset}).")
+                yield [matching_post]
+                processed_target_post_flag = True
+        elif not target_post_id:
             yield posts_batch
-        if processed_target_post_flag :
+        if processed_target_post_flag:
             break
-        current_offset +=page_size 
-        current_page_num +=1 
-        time .sleep (0.6 )
-    if target_post_id and not processed_target_post_flag and not (cancellation_event and cancellation_event .is_set ()):
-        logger (f"❌ Target post {target_post_id } could not be found after checking all relevant pages (final check after loop).")
+        current_offset += page_size
+        current_page_num += 1
+        time.sleep(0.6)
+    if target_post_id and not processed_target_post_flag and not (cancellation_event and cancellation_event.is_set()):
+        logger(f"❌ Target post {target_post_id} could not be found after checking all relevant pages (final check after loop).")

src/core/discord_client.py

@@ -0,0 +1,80 @@
+import time
+import requests
+import json
+from urllib.parse import urlparse
+
+def fetch_server_channels(server_id, logger, cookies=None, cancellation_event=None, pause_event=None):
+    """
+    Fetches the list of channels for a given Discord server ID from the Kemono API.
+    UPDATED to be pausable and cancellable.
+    """
+    domains_to_try = ["kemono.cr", "kemono.su"]
+    for domain in domains_to_try:
+        if cancellation_event and cancellation_event.is_set():
+            logger("   Channel fetching cancelled by user.")
+            return None
+        while pause_event and pause_event.is_set():
+            if cancellation_event and cancellation_event.is_set(): break
+            time.sleep(0.5)
+
+        lookup_url = f"https://{domain}/api/v1/discord/channel/lookup/{server_id}"
+        logger(f"   Attempting to fetch channel list from: {lookup_url}")
+        try:
+            response = requests.get(lookup_url, cookies=cookies, timeout=15)
+            response.raise_for_status()
+            channels = response.json()
+            if isinstance(channels, list):
+                logger(f"   ✅ Found {len(channels)} channels for server {server_id}.")
+                return channels
+        except (requests.exceptions.RequestException, json.JSONDecodeError):
+            # This is a silent failure, we'll just try the next domain
+            pass
+            
+    logger(f"   ❌ Failed to fetch channel list for server {server_id} from all available domains.")
+    return None
+
+def fetch_channel_messages(channel_id, logger, cancellation_event, pause_event, cookies=None):
+    """
+    Fetches all messages from a Discord channel by looping through API pages (pagination).
+    Uses a page size of 150 and handles the specific offset logic.
+    """
+    offset = 0
+    page_size = 150 # Corrected page size based on your findings
+    api_base_url = f"https://kemono.cr/api/v1/discord/channel/{channel_id}"
+    
+    while not (cancellation_event and cancellation_event.is_set()):
+        if pause_event and pause_event.is_set():
+            logger("   Message fetching paused...")
+            while pause_event.is_set():
+                if cancellation_event and cancellation_event.is_set(): break
+                time.sleep(0.5)
+            logger("   Message fetching resumed.")
+
+        if cancellation_event and cancellation_event.is_set():
+            break
+            
+        paginated_url = f"{api_base_url}?o={offset}"
+        logger(f"   Fetching messages from API: page starting at offset {offset}")
+
+        try:
+            response = requests.get(paginated_url, cookies=cookies, timeout=20)
+            response.raise_for_status()
+            messages_batch = response.json()
+
+            if not messages_batch:
+                logger(f"   ✅ Reached end of messages for channel {channel_id}.")
+                break
+            
+            logger(f"   Fetched {len(messages_batch)} messages...")
+            yield messages_batch
+
+            if len(messages_batch) < page_size:
+                logger(f"   ✅ Last page of messages received for channel {channel_id}.")
+                break
+
+            offset += page_size
+            time.sleep(0.5)
+
+        except (requests.exceptions.RequestException, json.JSONDecodeError) as e:
+            logger(f"   ❌ Error fetching messages at offset {offset}: {e}")
+            break

src/core/manager.py

@@ -1,19 +1,14 @@
-# --- Standard Library Imports ---
 import threading
 import time
 import os
 import json
 import traceback
 from concurrent.futures import ThreadPoolExecutor, as_completed, Future
-
-# --- Local Application Imports ---
-# These imports reflect the new, organized project structure.
 from .api_client import download_from_api
-from .workers import PostProcessorWorker, DownloadThread
+from .workers import PostProcessorWorker
 from ..config.constants import (
     STYLE_DATE_BASED, STYLE_POST_TITLE_GLOBAL_NUMBERING,
-    MAX_THREADS, POST_WORKER_BATCH_THRESHOLD, POST_WORKER_NUM_BATCHES,
-    POST_WORKER_BATCH_DELAY_SECONDS
+    MAX_THREADS
 )
 from ..utils.file_utils import clean_folder_name
 
@@ -36,8 +31,6 @@ class DownloadManager:
         self.progress_queue = progress_queue
         self.thread_pool = None
         self.active_futures = []
-
-        # --- Session State ---
         self.cancellation_event = threading.Event()
         self.pause_event = threading.Event()
         self.is_running = False
@@ -47,6 +40,10 @@ class DownloadManager:
         self.total_downloads = 0
         self.total_skips = 0
         self.all_kept_original_filenames = []
+        self.creator_profiles_dir = None
+        self.current_creator_name_for_profile = None
+        self.current_creator_profile_path = None
+        self.session_file_path = None
 
     def _log(self, message):
         """Puts a progress message into the queue for the UI."""
@@ -65,7 +62,16 @@ class DownloadManager:
             self._log("❌ Cannot start a new session: A session is already in progress.")
             return
 
-        # --- Reset state for the new session ---
+        self.session_file_path = config.get('session_file_path')
+        creator_profile_data = self._setup_creator_profile(config)
+        
+        # Save settings to profile at the start of the session
+        if self.current_creator_profile_path:
+            creator_profile_data['settings'] = config
+            creator_profile_data.setdefault('processed_post_ids', [])
+            self._save_creator_profile(creator_profile_data)
+            self._log(f"✅ Loaded/created profile for '{self.current_creator_name_for_profile}'. Settings saved.")
+
         self.is_running = True
         self.cancellation_event.clear()
         self.pause_event.clear()
@@ -76,7 +82,6 @@ class DownloadManager:
         self.total_skips = 0
         self.all_kept_original_filenames = []
         
-        # --- Decide execution strategy (multi-threaded vs. single-threaded) ---
         is_single_post = bool(config.get('target_post_id_from_initial_url'))
         use_multithreading = config.get('use_multithreading', True)
         is_manga_sequential = config.get('manga_mode_active') and config.get('manga_filename_style') in [STYLE_DATE_BASED, STYLE_POST_TITLE_GLOBAL_NUMBERING]
@@ -84,112 +89,114 @@ class DownloadManager:
         should_use_multithreading_for_posts = use_multithreading and not is_single_post and not is_manga_sequential
         
         if should_use_multithreading_for_posts:
-            # Start a separate thread to manage fetching and queuing to the thread pool
             fetcher_thread = threading.Thread(
                 target=self._fetch_and_queue_posts_for_pool,
-                args=(config, restore_data),
+                args=(config, restore_data, creator_profile_data),
                 daemon=True
             )
             fetcher_thread.start()
         else:
-            # For single posts or sequential manga mode, use a single worker thread
-            # which is simpler and ensures order.
-            self._start_single_threaded_session(config)
+            # Single-threaded mode does not use the manager's complex logic
+            self._log("ℹ️ Manager is handing off to a single-threaded worker...")
+            # The single-threaded worker will manage its own lifecycle and signals.
+            # The manager's role for this session is effectively over.
+            self.is_running = False # Allow another session to start if needed
+            self.progress_queue.put({'type': 'handoff_to_single_thread', 'payload': (config,)})
 
-    def _start_single_threaded_session(self, config):
-        """Handles downloads that are best processed by a single worker thread."""
-        self._log("ℹ️ Initializing single-threaded download process...")
 
-        # The original DownloadThread is now a pure Python thread, not a QThread.
-        # We run its `run` method in a standard Python thread.
-        self.worker_thread = threading.Thread(
-            target=self._run_single_worker,
-            args=(config,),
-            daemon=True
-        )
-        self.worker_thread.start()
-
-    def _run_single_worker(self, config):
-        """Target function for the single-worker thread."""
-        try:
-            # Pass the queue directly to the worker for it to send updates
-            worker = DownloadThread(config, self.progress_queue)
-            worker.run() # This is the main blocking call for this thread
-        except Exception as e:
-            self._log(f"❌ CRITICAL ERROR in single-worker thread: {e}")
-            self._log(traceback.format_exc())
-        finally:
-            self.is_running = False
-
-    def _fetch_and_queue_posts_for_pool(self, config, restore_data):
+    def _fetch_and_queue_posts_for_pool(self, config, restore_data, creator_profile_data):
         """
-        Fetches all posts from the API and submits them as tasks to a thread pool.
-        This method runs in its own dedicated thread to avoid blocking.
+        Fetches posts from the API in batches and submits them as tasks to a thread pool.
+        This method runs in its own dedicated thread to avoid blocking the UI.
+        It provides immediate feedback as soon as the first batch of posts is found.
         """
         try:
             num_workers = min(config.get('num_threads', 4), MAX_THREADS)
             self.thread_pool = ThreadPoolExecutor(max_workers=num_workers, thread_name_prefix='PostWorker_')
 
-            # Fetch posts
-            # In a real implementation, this would call `api_client.download_from_api`
-            if restore_data:
+            session_processed_ids = set(restore_data.get('processed_post_ids', [])) if restore_data else set()
+            profile_processed_ids = set(creator_profile_data.get('processed_post_ids', []))
+            processed_ids = session_processed_ids.union(profile_processed_ids)
+
+            if restore_data and 'all_posts_data' in restore_data:
+                # This logic for session restore remains as it relies on a pre-fetched list
                 all_posts = restore_data['all_posts_data']
-                processed_ids = set(restore_data['processed_post_ids'])
                 posts_to_process = [p for p in all_posts if p.get('id') not in processed_ids]
                 self.total_posts = len(all_posts)
                 self.processed_posts = len(processed_ids)
                 self._log(f"🔄 Restoring session. {len(posts_to_process)} posts remaining.")
+                self.progress_queue.put({'type': 'overall_progress', 'payload': (self.total_posts, self.processed_posts)})
+                
+                if not posts_to_process:
+                    self._log("✅ No new posts to process from restored session.")
+                    return
+
+                for post_data in posts_to_process:
+                    if self.cancellation_event.is_set(): break
+                    worker = PostProcessorWorker(post_data, config, self.progress_queue)
+                    future = self.thread_pool.submit(worker.process)
+                    future.add_done_callback(self._handle_future_result)
+                    self.active_futures.append(future)
             else:
-                posts_to_process = self._get_all_posts(config)
-                self.total_posts = len(posts_to_process)
+                # --- START: REFACTORED STREAMING LOGIC ---
+                post_generator = download_from_api(
+                    api_url_input=config['api_url'],
+                    logger=self._log,
+                    start_page=config.get('start_page'),
+                    end_page=config.get('end_page'),
+                    manga_mode=config.get('manga_mode_active', False),
+                    cancellation_event=self.cancellation_event,
+                    pause_event=self.pause_event,
+                    use_cookie=config.get('use_cookie', False),
+                    cookie_text=config.get('cookie_text', ''),
+                    selected_cookie_file=config.get('selected_cookie_file'),
+                    app_base_dir=config.get('app_base_dir'),
+                    manga_filename_style_for_sort_check=config.get('manga_filename_style'),
+                    processed_post_ids=list(processed_ids)
+                )
+
+                self.total_posts = 0
                 self.processed_posts = 0
 
-            self.progress_queue.put({'type': 'overall_progress', 'payload': (self.total_posts, self.processed_posts)})
+                # Process posts in batches as they are yielded by the API client
+                for batch in post_generator:
+                    if self.cancellation_event.is_set():
+                        self._log("   Post fetching cancelled.")
+                        break
                     
-            if not posts_to_process:
-                self._log("✅ No new posts to process.")
-                return
+                    # Filter out any posts that might have been processed since the start
+                    posts_in_batch_to_process = [p for p in batch if p.get('id') not in processed_ids]
                     
-            # Submit tasks to the pool
-            for post_data in posts_to_process:
-                if self.cancellation_event.is_set():
-                    break
-                # Each PostProcessorWorker gets the queue to send its own updates
-                worker = PostProcessorWorker(post_data, config, self.progress_queue)
-                future = self.thread_pool.submit(worker.process)
-                future.add_done_callback(self._handle_future_result)
-                self.active_futures.append(future)
+                    if not posts_in_batch_to_process:
+                        continue
+
+                    # Update total count and immediately inform the UI
+                    self.total_posts += len(posts_in_batch_to_process)
+                    self.progress_queue.put({'type': 'overall_progress', 'payload': (self.total_posts, self.processed_posts)})
+
+                    for post_data in posts_in_batch_to_process:
+                        if self.cancellation_event.is_set(): break
+                        worker = PostProcessorWorker(post_data, config, self.progress_queue)
+                        future = self.thread_pool.submit(worker.process)
+                        future.add_done_callback(self._handle_future_result)
+                        self.active_futures.append(future)
+
+                if self.total_posts == 0 and not self.cancellation_event.is_set():
+                     self._log("✅ No new posts found to process.")
 
         except Exception as e:
             self._log(f"❌ CRITICAL ERROR in post fetcher thread: {e}")
             self._log(traceback.format_exc())
         finally:
-            # Wait for all submitted tasks to complete before shutting down
             if self.thread_pool:
                 self.thread_pool.shutdown(wait=True)
             self.is_running = False
-            self._log("🏁 All processing tasks have completed.")
-            # Emit final signal
+            self._log("🏁 All processing tasks have completed or been cancelled.") 
             self.progress_queue.put({
                 'type': 'finished',
                 'payload': (self.total_downloads, self.total_skips, self.cancellation_event.is_set(), self.all_kept_original_filenames)
             })
 
-    def _get_all_posts(self, config):
-        """Helper to fetch all posts using the API client."""
-        all_posts = []
-        # This generator yields batches of posts
-        post_generator = download_from_api(
-            api_url_input=config['api_url'],
-            logger=self._log,
-            # ... pass other relevant config keys ...
-            cancellation_event=self.cancellation_event,
-            pause_event=self.pause_event
-        )
-        for batch in post_generator:
-            all_posts.extend(batch)
-        return all_posts
-
     def _handle_future_result(self, future: Future):
         """Callback executed when a worker task completes."""
         if self.cancellation_event.is_set():
@@ -203,39 +210,76 @@ class DownloadManager:
                     self.total_skips += 1
                 else:
                     result = future.result()
-                    # Unpack result tuple from the worker
                     (dl_count, skip_count, kept_originals, 
                      retryable, permanent, history) = result
                     self.total_downloads += dl_count
                     self.total_skips += skip_count
                     self.all_kept_original_filenames.extend(kept_originals)
-                    
-                    # Queue up results for UI to handle
                     if retryable:
                         self.progress_queue.put({'type': 'retryable_failure', 'payload': (retryable,)})
                     if permanent:
                         self.progress_queue.put({'type': 'permanent_failure', 'payload': (permanent,)})
                     if history:
                         self.progress_queue.put({'type': 'post_processed_history', 'payload': (history,)})
+                        post_id = history.get('post_id')
+                        if post_id and self.current_creator_profile_path:
+                            profile_data = self._setup_creator_profile({'creator_name_for_profile': self.current_creator_name_for_profile, 'session_file_path': self.session_file_path})
+                            if post_id not in profile_data.get('processed_post_ids', []):
+                                profile_data.setdefault('processed_post_ids', []).append(post_id)
+                                self._save_creator_profile(profile_data)
 
             except Exception as e:
                 self._log(f"❌ Worker task resulted in an exception: {e}")
                 self.total_skips += 1 # Count errored posts as skipped
-
-            # Update overall progress
             self.progress_queue.put({'type': 'overall_progress', 'payload': (self.total_posts, self.processed_posts)})
 
+    def _setup_creator_profile(self, config):
+        """Prepares the path and loads data for the current creator's profile."""
+        self.current_creator_name_for_profile = config.get('creator_name_for_profile')
+        if not self.current_creator_name_for_profile:
+            self._log("⚠️ Cannot create creator profile: Name not provided in config.")
+            return {}
+
+        appdata_dir = os.path.dirname(config.get('session_file_path', '.'))
+        self.creator_profiles_dir = os.path.join(appdata_dir, "creator_profiles")
+        os.makedirs(self.creator_profiles_dir, exist_ok=True)
+
+        safe_filename = clean_folder_name(self.current_creator_name_for_profile) + ".json"
+        self.current_creator_profile_path = os.path.join(self.creator_profiles_dir, safe_filename)
+
+        if os.path.exists(self.current_creator_profile_path):
+            try:
+                with open(self.current_creator_profile_path, 'r', encoding='utf-8') as f:
+                    return json.load(f)
+            except (json.JSONDecodeError, OSError) as e:
+                self._log(f"❌ Error loading creator profile '{safe_filename}': {e}. Starting fresh.")
+        return {}
+
+    def _save_creator_profile(self, data):
+        """Saves the provided data to the current creator's profile file."""
+        if not self.current_creator_profile_path:
+            return
+        try:
+            temp_path = self.current_creator_profile_path + ".tmp"
+            with open(temp_path, 'w', encoding='utf-8') as f:
+                json.dump(data, f, indent=2)
+            os.replace(temp_path, self.current_creator_profile_path)
+        except OSError as e:
+            self._log(f"❌ Error saving creator profile to '{self.current_creator_profile_path}': {e}")
+
     def cancel_session(self):
         """Cancels the current running session."""
         if not self.is_running:
             return
+        
+        if self.cancellation_event.is_set():
+            self._log("ℹ️ Cancellation already in progress.")
+            return
+
         self._log("⚠️ Cancellation requested by user...")
         self.cancellation_event.set()
 
-        # For single thread mode, the worker checks the event
-        # For multi-thread mode, shut down the pool
         if self.thread_pool:
-            # Don't wait, just cancel pending futures and let the fetcher thread exit
-            self.thread_pool.shutdown(wait=False, cancel_futures=True)
+            self._log("   Signaling all worker threads to stop and shutting down pool...")
+            self.thread_pool.shutdown(wait=False)
 
-        self.is_running = False

src/services/drive_downloader.py

@@ -3,33 +3,30 @@ import os
 import re
 import traceback
 import json
+import base64
+import time
 from urllib.parse import urlparse, urlunparse, parse_qs, urlencode
 
-# --- Third-Party Library Imports ---
 import requests
+
 try:
-    from mega import Mega
-    MEGA_AVAILABLE = True
+    from Crypto.Cipher import AES
+    PYCRYPTODOME_AVAILABLE = True
 except ImportError:
-    MEGA_AVAILABLE = False
+    PYCRYPTODOME_AVAILABLE = False
 
 try:
     import gdown
-    GDOWN_AVAILABLE = True
+    GDRIVE_AVAILABLE = True
 except ImportError:
-    GDOWN_AVAILABLE = False
+    GDRIVE_AVAILABLE = False
 
-# --- Helper Functions ---
+MEGA_API_URL = "https://g.api.mega.co.nz"
 
 def _get_filename_from_headers(headers):
     """
     Extracts a filename from the Content-Disposition header.
-
-    Args:
-        headers (dict): A dictionary of HTTP response headers.
-
-    Returns:
-        str or None: The extracted filename, or None if not found.
+    (This is from your original file and is kept for Dropbox downloads)
     """
     cd = headers.get('content-disposition')
     if not cd:
@@ -37,97 +34,205 @@ def _get_filename_from_headers(headers):
     
     fname_match = re.findall('filename="?([^"]+)"?', cd)
     if fname_match:
-        # Sanitize the filename to prevent directory traversal issues
-        # and remove invalid characters for most filesystems.
         sanitized_name = re.sub(r'[<>:"/\\|?*]', '_', fname_match[0].strip())
         return sanitized_name
         
     return None
 
-# --- Main Service Downloader Functions ---
+# --- NEW: Helper functions for Mega decryption ---
 
-def download_mega_file(mega_link, download_path=".", logger_func=print):
-    """
-    Downloads a file from a public Mega.nz link.
+def urlb64_to_b64(s):
+    """Converts a URL-safe base64 string to a standard base64 string."""
+    s = s.replace('-', '+').replace('_', '/')
+    s += '=' * (-len(s) % 4)
+    return s
 
-    Args:
-        mega_link (str): The public Mega.nz link to the file.
-        download_path (str): The directory to save the downloaded file.
-        logger_func (callable): Function to use for logging.
-    """
-    if not MEGA_AVAILABLE:
-        logger_func("❌ Error: mega.py library is not installed. Cannot download from Mega.")
-        logger_func("   Please install it: pip install mega.py")
-        raise ImportError("mega.py library not found.")
+def b64_to_bytes(s):
+    """Decodes a URL-safe base64 string to bytes."""
+    return base64.b64decode(urlb64_to_b64(s))
 
-    logger_func(f"   [Mega] Initializing Mega client...")
+def bytes_to_hex(b):
+    """Converts bytes to a hex string."""
+    return b.hex()
+
+def hex_to_bytes(h):
+    """Converts a hex string to bytes."""
+    return bytes.fromhex(h)
+
+def hrk2hk(hex_raw_key):
+    """Derives the final AES key from the raw key components for Mega."""
+    key_part1 = int(hex_raw_key[0:16], 16)
+    key_part2 = int(hex_raw_key[16:32], 16)
+    key_part3 = int(hex_raw_key[32:48], 16)
+    key_part4 = int(hex_raw_key[48:64], 16)
+    
+    final_key_part1 = key_part1 ^ key_part3
+    final_key_part2 = key_part2 ^ key_part4
+    
+    return f'{final_key_part1:016x}{final_key_part2:016x}'
+
+def decrypt_at(at_b64, key_bytes):
+    """Decrypts the 'at' attribute to get file metadata."""
+    at_bytes = b64_to_bytes(at_b64)
+    iv = b'\0' * 16
+    cipher = AES.new(key_bytes, AES.MODE_CBC, iv)
+    decrypted_at = cipher.decrypt(at_bytes)
+    return decrypted_at.decode('utf-8').strip('\0').replace('MEGA', '')
+
+# --- NEW: Core Logic for Mega Downloads ---
+
+def get_mega_file_info(file_id, file_key, session, logger_func):
+    """Fetches file metadata and the temporary download URL from the Mega API."""
     try:
-        mega_client = Mega()
-        m = mega_client.login()
-        logger_func(f"   [Mega] Attempting to download from: {mega_link}")
+        hex_raw_key = bytes_to_hex(b64_to_bytes(file_key))
+        hex_key = hrk2hk(hex_raw_key)
+        key_bytes = hex_to_bytes(hex_key)
 
-        if not os.path.exists(download_path):
-            os.makedirs(download_path, exist_ok=True)
-            logger_func(f"   [Mega] Created download directory: {download_path}")
+        # Request file attributes
+        payload = [{"a": "g", "p": file_id}]
+        response = session.post(f"{MEGA_API_URL}/cs", json=payload, timeout=20)
+        response.raise_for_status()
+        res_json = response.json()
 
-        # The download_url method handles file info fetching and saving internally.
-        downloaded_file_path = m.download_url(mega_link, dest_path=download_path)
+        if isinstance(res_json, list) and isinstance(res_json[0], int) and res_json[0] < 0:
+            logger_func(f"   [Mega] ❌ API Error: {res_json[0]}. The link may be invalid or removed.")
+            return None
 
-        if downloaded_file_path and os.path.exists(downloaded_file_path):
-            logger_func(f"   [Mega] ✅ File downloaded successfully! Saved as: {downloaded_file_path}")
-        else:
-            raise Exception(f"Mega download failed or file not found. Returned: {downloaded_file_path}")
+        file_size = res_json[0]['s']
+        at_b64 = res_json[0]['at']
 
-    except Exception as e:
-        logger_func(f"   [Mega] ❌ An unexpected error occurred during Mega download: {e}")
-        traceback.print_exc(limit=2)
-        raise  # Re-raise the exception to be handled by the calling worker
+        # Decrypt attributes to get the file name
+        at_dec_json_str = decrypt_at(at_b64, key_bytes)
+        at_dec_json = json.loads(at_dec_json_str)
+        file_name = at_dec_json['n']
 
-def download_gdrive_file(gdrive_link, download_path=".", logger_func=print):
-    """
-    Downloads a file from a public Google Drive link using the gdown library.
+        # Request the temporary download URL
+        payload = [{"a": "g", "g": 1, "p": file_id}]
+        response = session.post(f"{MEGA_API_URL}/cs", json=payload, timeout=20)
+        response.raise_for_status()
+        res_json = response.json()
+        dl_temp_url = res_json[0]['g']
 
-    Args:
-        gdrive_link (str): The public Google Drive link to the file.
-        download_path (str): The directory to save the downloaded file.
-        logger_func (callable): Function to use for logging.
-    """
-    if not GDOWN_AVAILABLE:
-        logger_func("❌ Error: gdown library is not installed. Cannot download from Google Drive.")
-        logger_func("   Please install it: pip install gdown")
-        raise ImportError("gdown library not found.")
+        return {
+            'file_name': file_name,
+            'file_size': file_size,
+            'dl_url': dl_temp_url,
+            'hex_raw_key': hex_raw_key
+        }
+    except (requests.RequestException, json.JSONDecodeError, KeyError, ValueError) as e:
+        logger_func(f"   [Mega] ❌ Failed to get file info: {e}")
+        return None
+
+def download_and_decrypt_mega_file(info, download_path, logger_func):
+    """Downloads the file and decrypts it chunk by chunk, reporting progress."""
+    file_name = info['file_name']
+    file_size = info['file_size']
+    dl_url = info['dl_url']
+    hex_raw_key = info['hex_raw_key']
+
+    final_path = os.path.join(download_path, file_name)
+
+    if os.path.exists(final_path) and os.path.getsize(final_path) == file_size:
+        logger_func(f"   [Mega] ℹ️ File '{file_name}' already exists with the correct size. Skipping.")
+        return
+
+    # Prepare for decryption
+    key = hex_to_bytes(hrk2hk(hex_raw_key))
+    iv_hex = hex_raw_key[32:48] + '0000000000000000'
+    iv_bytes = hex_to_bytes(iv_hex)
+    cipher = AES.new(key, AES.MODE_CTR, initial_value=iv_bytes, nonce=b'')
 
-    logger_func(f"   [GDrive] Attempting to download: {gdrive_link}")
     try:
-        if not os.path.exists(download_path):
-            os.makedirs(download_path, exist_ok=True)
-            logger_func(f"   [GDrive] Created download directory: {download_path}")
+        with requests.get(dl_url, stream=True, timeout=(15, 300)) as r:
+            r.raise_for_status()
+            downloaded_bytes = 0
+            last_log_time = time.time()
             
-        # gdown handles finding the file ID and downloading. 'fuzzy=True' helps with various URL formats.
-        output_file_path = gdown.download(gdrive_link, output=download_path, quiet=False, fuzzy=True)
+            with open(final_path, 'wb') as f:
+                for chunk in r.iter_content(chunk_size=8192):
+                    if not chunk:
+                        continue
+                    decrypted_chunk = cipher.decrypt(chunk)
+                    f.write(decrypted_chunk)
+                    downloaded_bytes += len(chunk)
                     
-        if output_file_path and os.path.exists(output_file_path):
-            logger_func(f"   [GDrive] ✅ Google Drive file downloaded successfully: {output_file_path}")
-        else:
-            raise Exception(f"gdown download failed or file not found. Returned: {output_file_path}")
+                    # Log progress every second
+                    current_time = time.time()
+                    if current_time - last_log_time > 1:
+                        progress_percent = (downloaded_bytes / file_size) * 100 if file_size > 0 else 0
+                        logger_func(f"   [Mega] Downloading '{file_name}': {downloaded_bytes/1024/1024:.2f}MB / {file_size/1024/1024:.2f}MB ({progress_percent:.1f}%)")
+                        last_log_time = current_time
         
+        logger_func(f"   [Mega] ✅ Successfully downloaded '{file_name}' to '{download_path}'")
+    except requests.RequestException as e:
+        logger_func(f"   [Mega] ❌ Download failed for '{file_name}': {e}")
+    except IOError as e:
+        logger_func(f"   [Mega] ❌ Could not write to file '{final_path}': {e}")
     except Exception as e:
-        logger_func(f"   [GDrive] ❌ An error occurred during Google Drive download: {e}")
-        traceback.print_exc(limit=2)
-        raise
+        logger_func(f"   [Mega] ❌ An unexpected error occurred during download/decryption: {e}")
+
+
+# --- REPLACEMENT Main Service Downloader Function for Mega ---
+
+def download_mega_file(mega_url, download_path, logger_func=print):
+    """
+    Downloads a file from a Mega.nz URL using direct requests and decryption.
+    This replaces the old mega.py implementation.
+    """
+    if not PYCRYPTODOME_AVAILABLE:
+        logger_func("❌ Mega download failed: 'pycryptodome' library is not installed. Please run: pip install pycryptodome")
+        return
+
+    logger_func(f"   [Mega] Initializing download for: {mega_url}")
+    
+    # Regex to capture file ID and key from both old and new URL formats
+    match = re.search(r'mega(?:\.co)?\.nz/(?:file/|#!)?([a-zA-Z0-9]+)(?:#|!)([a-zA-Z0-9_.-]+)', mega_url)
+    if not match:
+        logger_func(f"   [Mega] ❌ Error: Invalid Mega URL format.")
+        return
+        
+    file_id = match.group(1)
+    file_key = match.group(2)
+
+    session = requests.Session()
+    session.headers.update({'User-Agent': 'Kemono-Downloader-PyQt/1.0'})
+    
+    file_info = get_mega_file_info(file_id, file_key, session, logger_func)
+    if not file_info:
+        logger_func(f"   [Mega] ❌ Failed to get file info. The link may be invalid or expired. Aborting.")
+        return
+
+    logger_func(f"   [Mega] File found: '{file_info['file_name']}' (Size: {file_info['file_size'] / 1024 / 1024:.2f} MB)")
+    
+    download_and_decrypt_mega_file(file_info, download_path, logger_func)
+
+
+# --- ORIGINAL Functions for Google Drive and Dropbox (Unchanged) ---
+
+def download_gdrive_file(url, download_path, logger_func=print):
+    """Downloads a file from a Google Drive link."""
+    if not GDRIVE_AVAILABLE:
+        logger_func("❌ Google Drive download failed: 'gdown' library is not installed.")
+        return
+    try:
+        logger_func(f"   [G-Drive] Starting download for: {url}")
+        logger_func("   [G-Drive] Download in progress... This may take some time. Please wait.")
+        
+        output_path = gdown.download(url, output=download_path, quiet=True, fuzzy=True)
+        
+        if output_path and os.path.exists(output_path):
+            logger_func(f"   [G-Drive] ✅ Successfully downloaded to '{output_path}'")
+        else:
+            logger_func(f"   [G-Drive] ❌ Download failed. The file may have been moved, deleted, or is otherwise inaccessible.")
+    except Exception as e:
+        logger_func(f"   [G-Drive] ❌ An unexpected error occurred: {e}")
 
 def download_dropbox_file(dropbox_link, download_path=".", logger_func=print):
     """
     Downloads a file from a public Dropbox link by modifying the URL for direct download.
-
-    Args:
-        dropbox_link (str): The public Dropbox link to the file.
-        download_path (str): The directory to save the downloaded file.
-        logger_func (callable): Function to use for logging.
     """
     logger_func(f"   [Dropbox] Attempting to download: {dropbox_link}")
     
-    # Modify the Dropbox URL to force a direct download instead of showing the preview page.
     parsed_url = urlparse(dropbox_link)
     query_params = parse_qs(parsed_url.query)
     query_params['dl'] = ['1']
@@ -144,13 +249,11 @@ def download_dropbox_file(dropbox_link, download_path=".", logger_func=print):
         with requests.get(direct_download_url, stream=True, allow_redirects=True, timeout=(10, 300)) as r:
             r.raise_for_status()
             
-            # Determine filename from headers or URL
             filename = _get_filename_from_headers(r.headers) or os.path.basename(parsed_url.path) or "dropbox_file"
             full_save_path = os.path.join(download_path, filename)
             
             logger_func(f"   [Dropbox] Starting download of '{filename}'...")
             
-            # Write file to disk in chunks
             with open(full_save_path, 'wb') as f:
                 for chunk in r.iter_content(chunk_size=8192):
                     f.write(chunk)

src/services/multipart_downloader.py

@@ -1,4 +1,5 @@
 # --- Standard Library Imports ---
+# --- Standard Library Imports ---
 import os
 import time
 import hashlib
@@ -10,28 +11,49 @@ from concurrent.futures import ThreadPoolExecutor, as_completed
 
 # --- Third-Party Library Imports ---
 import requests
+MULTIPART_DOWNLOADER_AVAILABLE = True
 
 # --- Module Constants ---
 CHUNK_DOWNLOAD_RETRY_DELAY = 2
 MAX_CHUNK_DOWNLOAD_RETRIES = 1
 DOWNLOAD_CHUNK_SIZE_ITER = 1024 * 256  # 256 KB per iteration chunk
 
-# Flag to indicate if this module and its dependencies are available.
-# This was missing and caused the ImportError.
-MULTIPART_DOWNLOADER_AVAILABLE = True
-
 
 def _download_individual_chunk(
-    chunk_url, temp_file_path, start_byte, end_byte, headers,
+    chunk_url, chunk_temp_file_path, start_byte, end_byte, headers,
     part_num, total_parts, progress_data, cancellation_event,
     skip_event, pause_event, global_emit_time_ref, cookies_for_chunk,
     logger_func, emitter=None, api_original_filename=None
 ):
     """
-    Downloads a single segment (chunk) of a larger file. This function is
-    intended to be run in a separate thread by a ThreadPoolExecutor.
+    Downloads a single segment (chunk) of a larger file to its own unique part file.
+    This function is intended to be run in a separate thread by a ThreadPoolExecutor.
 
-    It handles retries, pauses, and cancellations for its specific chunk.
+    It handles retries, pauses, and cancellations for its specific chunk. If a
+    download fails, the partial chunk file is removed, allowing a clean retry later.
+
+    Args:
+        chunk_url (str): The URL to download the file from.
+        chunk_temp_file_path (str): The unique path to save this specific chunk
+                                    (e.g., 'my_video.mp4.part0').
+        start_byte (int): The starting byte for the Range header.
+        end_byte (int): The ending byte for the Range header.
+        headers (dict): The HTTP headers to use for the request.
+        part_num (int): The index of this chunk (e.g., 0 for the first part).
+        total_parts (int): The total number of chunks for the entire file.
+        progress_data (dict): A thread-safe dictionary for sharing progress.
+        cancellation_event (threading.Event): Event to signal cancellation.
+        skip_event (threading.Event): Event to signal skipping the file.
+        pause_event (threading.Event): Event to signal pausing the download.
+        global_emit_time_ref (list): A mutable list with one element (a timestamp)
+                                     to rate-limit UI updates.
+        cookies_for_chunk (dict): Cookies to use for the request.
+        logger_func (function): A function to log messages.
+        emitter (queue.Queue or QObject): Emitter for sending progress to the UI.
+        api_original_filename (str): The original filename for UI display.
+
+    Returns:
+        tuple: A tuple containing (bytes_downloaded, success_flag).
     """
     # --- Pre-download checks for control events ---
     if cancellation_event and cancellation_event.is_set():
@@ -49,103 +71,135 @@ def _download_individual_chunk(
             time.sleep(0.2)
         logger_func(f"   [Chunk {part_num + 1}/{total_parts}] Download resumed.")
 
-    # Prepare headers for the specific byte range of this chunk
-    chunk_headers = headers.copy()
-    if end_byte != -1:
-        chunk_headers['Range'] = f"bytes={start_byte}-{end_byte}"
+    # Set this chunk's status to 'active' before starting the download.
+    with progress_data['lock']:
+        progress_data['chunks_status'][part_num]['active'] = True
 
-    bytes_this_chunk = 0
-    last_speed_calc_time = time.time()
-    bytes_at_last_speed_calc = 0
+    try:
+        # Prepare headers for the specific byte range of this chunk
+        chunk_headers = headers.copy()
+        if end_byte != -1:
+            chunk_headers['Range'] = f"bytes={start_byte}-{end_byte}"
 
-    # --- Retry Loop ---
-    for attempt in range(MAX_CHUNK_DOWNLOAD_RETRIES + 1):
-        if cancellation_event and cancellation_event.is_set():
-            return bytes_this_chunk, False
+        bytes_this_chunk = 0
+        last_speed_calc_time = time.time()
+        bytes_at_last_speed_calc = 0
 
-        try:
-            if attempt > 0:
-                logger_func(f"   [Chunk {part_num + 1}/{total_parts}] Retrying (Attempt {attempt + 1}/{MAX_CHUNK_DOWNLOAD_RETRIES + 1})...")
-                time.sleep(CHUNK_DOWNLOAD_RETRY_DELAY * (2 ** (attempt - 1)))
-                last_speed_calc_time = time.time()
-                bytes_at_last_speed_calc = bytes_this_chunk
+        # --- Retry Loop ---
+        for attempt in range(MAX_CHUNK_DOWNLOAD_RETRIES + 1):
+            if cancellation_event and cancellation_event.is_set():
+                return bytes_this_chunk, False
 
-            logger_func(f"   🚀 [Chunk {part_num + 1}/{total_parts}] Starting download: bytes {start_byte}-{end_byte if end_byte != -1 else 'EOF'}")
+            try:
+                if attempt > 0:
+                    logger_func(f"   [Chunk {part_num + 1}/{total_parts}] Retrying (Attempt {attempt + 1}/{MAX_CHUNK_DOWNLOAD_RETRIES + 1})...")
+                    time.sleep(CHUNK_DOWNLOAD_RETRY_DELAY * (2 ** (attempt - 1)))
+                    last_speed_calc_time = time.time()
+                    bytes_at_last_speed_calc = bytes_this_chunk
 
-            response = requests.get(chunk_url, headers=chunk_headers, timeout=(10, 120), stream=True, cookies=cookies_for_chunk)
-            response.raise_for_status()
+                logger_func(f"   🚀 [Chunk {part_num + 1}/{total_parts}] Starting download: bytes {start_byte}-{end_byte if end_byte != -1 else 'EOF'}")
 
-            # --- Data Writing Loop ---
-            with open(temp_file_path, 'r+b') as f:
-                f.seek(start_byte)
-                for data_segment in response.iter_content(chunk_size=DOWNLOAD_CHUNK_SIZE_ITER):
-                    if cancellation_event and cancellation_event.is_set():
-                        return bytes_this_chunk, False
-                    if pause_event and pause_event.is_set():
-                        # Handle pausing during the download stream
-                        logger_func(f"   [Chunk {part_num + 1}/{total_parts}] Paused...")
-                        while pause_event.is_set():
-                            if cancellation_event and cancellation_event.is_set(): return bytes_this_chunk, False
-                            time.sleep(0.2)
-                        logger_func(f"   [Chunk {part_num + 1}/{total_parts}] Resumed.")
+                response = requests.get(chunk_url, headers=chunk_headers, timeout=(10, 120), stream=True, cookies=cookies_for_chunk)
+                response.raise_for_status()
 
-                    if data_segment:
-                        f.write(data_segment)
-                        bytes_this_chunk += len(data_segment)
+                # --- Data Writing Loop ---
+                # We open the unique chunk file in write-binary ('wb') mode.
+                # No more seeking is required.
+                with open(chunk_temp_file_path, 'wb') as f:
+                    for data_segment in response.iter_content(chunk_size=DOWNLOAD_CHUNK_SIZE_ITER):
+                        if cancellation_event and cancellation_event.is_set():
+                            return bytes_this_chunk, False
+                        if pause_event and pause_event.is_set():
+                            # Handle pausing during the download stream
+                            logger_func(f"   [Chunk {part_num + 1}/{total_parts}] Paused...")
+                            while pause_event.is_set():
+                                if cancellation_event and cancellation_event.is_set(): return bytes_this_chunk, False
+                                time.sleep(0.2)
+                            logger_func(f"   [Chunk {part_num + 1}/{total_parts}] Resumed.")
 
-                        # Update shared progress data structure
-                        with progress_data['lock']:
-                            progress_data['total_downloaded_so_far'] += len(data_segment)
-                            progress_data['chunks_status'][part_num]['downloaded'] = bytes_this_chunk
+                        if data_segment:
+                            f.write(data_segment)
+                            bytes_this_chunk += len(data_segment)
 
-                            # Calculate and update speed for this chunk
-                            current_time = time.time()
-                            time_delta = current_time - last_speed_calc_time
-                            if time_delta > 0.5:
-                                bytes_delta = bytes_this_chunk - bytes_at_last_speed_calc
-                                current_speed_bps = (bytes_delta * 8) / time_delta if time_delta > 0 else 0
-                                progress_data['chunks_status'][part_num]['speed_bps'] = current_speed_bps
-                                last_speed_calc_time = current_time
-                                bytes_at_last_speed_calc = bytes_this_chunk
+                            # Update shared progress data structure
+                            with progress_data['lock']:
+                                progress_data['total_downloaded_so_far'] += len(data_segment)
+                                progress_data['chunks_status'][part_num]['downloaded'] = bytes_this_chunk
 
-                            # Emit progress signal to the UI via the queue
-                            if emitter and (current_time - global_emit_time_ref[0] > 0.25):
-                                global_emit_time_ref[0] = current_time
-                                status_list_copy = [dict(s) for s in progress_data['chunks_status']]
-                                if isinstance(emitter, queue.Queue):
-                                    emitter.put({'type': 'file_progress', 'payload': (api_original_filename, status_list_copy)})
-                                elif hasattr(emitter, 'file_progress_signal'):
-                                    emitter.file_progress_signal.emit(api_original_filename, status_list_copy)
+                                # Calculate and update speed for this chunk
+                                current_time = time.time()
+                                time_delta = current_time - last_speed_calc_time
+                                if time_delta > 0.5:
+                                    bytes_delta = bytes_this_chunk - bytes_at_last_speed_calc
+                                    current_speed_bps = (bytes_delta * 8) / time_delta if time_delta > 0 else 0
+                                    progress_data['chunks_status'][part_num]['speed_bps'] = current_speed_bps
+                                    last_speed_calc_time = current_time
+                                    bytes_at_last_speed_calc = bytes_this_chunk
 
-            # If we reach here, the download for this chunk was successful
-            return bytes_this_chunk, True
+                                # Emit progress signal to the UI via the queue
+                                if emitter and (current_time - global_emit_time_ref[0] > 0.25):
+                                    global_emit_time_ref[0] = current_time
+                                    status_list_copy = [dict(s) for s in progress_data['chunks_status']]
+                                    if isinstance(emitter, queue.Queue):
+                                        emitter.put({'type': 'file_progress', 'payload': (api_original_filename, status_list_copy)})
+                                    elif hasattr(emitter, 'file_progress_signal'):
+                                        emitter.file_progress_signal.emit(api_original_filename, status_list_copy)
 
-        except (requests.exceptions.ConnectionError, requests.exceptions.Timeout, http.client.IncompleteRead) as e:
-            logger_func(f"   ❌ [Chunk {part_num + 1}/{total_parts}] Retryable error: {e}")
-        except requests.exceptions.RequestException as e:
-            logger_func(f"   ❌ [Chunk {part_num + 1}/{total_parts}] Non-retryable error: {e}")
-            return bytes_this_chunk, False # Break loop on non-retryable errors
-        except Exception as e:
-            logger_func(f"   ❌ [Chunk {part_num + 1}/{total_parts}] Unexpected error: {e}\n{traceback.format_exc(limit=1)}")
-            return bytes_this_chunk, False
+                # If we get here, the download for this chunk is successful
+                return bytes_this_chunk, True
 
-    return bytes_this_chunk, False
+            except (requests.exceptions.ConnectionError, requests.exceptions.Timeout, http.client.IncompleteRead) as e:
+                logger_func(f"   ❌ [Chunk {part_num + 1}/{total_parts}] Retryable error: {e}")
+            except requests.exceptions.RequestException as e:
+                logger_func(f"   ❌ [Chunk {part_num + 1}/{total_parts}] Non-retryable error: {e}")
+                return bytes_this_chunk, False # Break loop on non-retryable errors
+            except Exception as e:
+                logger_func(f"   ❌ [Chunk {part_num + 1}/{total_parts}] Unexpected error: {e}\n{traceback.format_exc(limit=1)}")
+                return bytes_this_chunk, False
+
+        # If the retry loop finishes without a successful download
+        return bytes_this_chunk, False
+    finally:
+        # This block runs whether the download succeeded or failed
+        with progress_data['lock']:
+            progress_data['chunks_status'][part_num]['active'] = False
+            progress_data['chunks_status'][part_num]['speed_bps'] = 0.0
 
 
 def download_file_in_parts(file_url, save_path, total_size, num_parts, headers, api_original_filename,
                            emitter_for_multipart, cookies_for_chunk_session,
                            cancellation_event, skip_event, logger_func, pause_event):
-    logger_func(f"⬇️ Initializing Multi-part Download ({num_parts} parts) for: '{api_original_filename}' (Size: {total_size / (1024*1024):.2f} MB)")
-    temp_file_path = save_path + ".part"
+    """
+    Manages a resilient, multipart file download by saving each chunk to a separate file.
 
-    try:
-        with open(temp_file_path, 'wb') as f_temp:
-            if total_size > 0:
-                f_temp.truncate(total_size)
-    except IOError as e:
-        logger_func(f"   ❌ Error creating/truncating temp file '{temp_file_path}': {e}")
-        return False, 0, None, None
+    This function orchestrates the download process by:
+    1. Checking for already completed chunk files to resume a previous download.
+    2. Submitting only the missing chunks to a thread pool for parallel download.
+    3. Assembling the final file from the individual chunks upon successful completion.
+    4. Cleaning up temporary chunk files after assembly.
+    5. Leaving completed chunks on disk if the download fails, allowing for a future resume.
 
+    Args:
+        file_url (str): The URL of the file to download.
+        save_path (str): The final desired path for the downloaded file (e.g., 'my_video.mp4').
+        total_size (int): The total size of the file in bytes.
+        num_parts (int): The number of parts to split the download into.
+        headers (dict): HTTP headers for the download requests.
+        api_original_filename (str): The original filename for UI progress display.
+        emitter_for_multipart (queue.Queue or QObject): Emitter for UI signals.
+        cookies_for_chunk_session (dict): Cookies for the download requests.
+        cancellation_event (threading.Event): Event to signal cancellation.
+        skip_event (threading.Event): Event to signal skipping the file.
+        logger_func (function): A function for logging messages.
+        pause_event (threading.Event): Event to signal pausing the download.
+
+    Returns:
+        tuple: A tuple containing (success_flag, total_bytes_downloaded, md5_hash, file_handle).
+               The file_handle will be for the final assembled file if successful, otherwise None.
+    """
+    logger_func(f"⬇️ Initializing Resumable Multi-part Download ({num_parts} parts) for: '{api_original_filename}' (Size: {total_size / (1024*1024):.2f} MB)")
+
+    # Calculate the byte range for each chunk
     chunk_size_calc = total_size // num_parts
     chunks_ranges = []
     for i in range(num_parts):
@@ -153,76 +207,119 @@ def download_file_in_parts(file_url, save_path, total_size, num_parts, headers,
         end = start + chunk_size_calc - 1 if i < num_parts - 1 else total_size - 1
         if start <= end:
             chunks_ranges.append((start, end))
-        elif total_size == 0 and i == 0:
+        elif total_size == 0 and i == 0: # Handle zero-byte files
             chunks_ranges.append((0, -1))
 
+    # Calculate the expected size of each chunk
     chunk_actual_sizes = []
     for start, end in chunks_ranges:
-        if end == -1 and start == 0:
-            chunk_actual_sizes.append(0)
-        else:
-            chunk_actual_sizes.append(end - start + 1)
+        chunk_actual_sizes.append(end - start + 1 if end != -1 else 0)
 
     if not chunks_ranges and total_size > 0:
-        logger_func(f"   ⚠️ No valid chunk ranges for multipart download of '{api_original_filename}'. Aborting multipart.")
-        if os.path.exists(temp_file_path): os.remove(temp_file_path)
+        logger_func(f"   ⚠️ No valid chunk ranges for multipart download of '{api_original_filename}'. Aborting.")
         return False, 0, None, None
 
+    # --- Resumption Logic: Check for existing complete chunks ---
+    chunks_to_download = []
+    total_bytes_resumed = 0
+    for i, (start, end) in enumerate(chunks_ranges):
+        chunk_part_path = f"{save_path}.part{i}"
+        expected_chunk_size = chunk_actual_sizes[i]
+
+        if os.path.exists(chunk_part_path) and os.path.getsize(chunk_part_path) == expected_chunk_size:
+            logger_func(f"   [Chunk {i + 1}/{num_parts}] Resuming with existing complete chunk file.")
+            total_bytes_resumed += expected_chunk_size
+        else:
+            chunks_to_download.append({'index': i, 'start': start, 'end': end})
+
+    # Setup the shared progress data structure
     progress_data = {
         'total_file_size': total_size,
-        'total_downloaded_so_far': 0,
-        'chunks_status': [
-            {'id': i, 'downloaded': 0, 'total': chunk_actual_sizes[i] if i < len(chunk_actual_sizes) else 0, 'active': False, 'speed_bps': 0.0}
-            for i in range(num_parts)
-        ],
+        'total_downloaded_so_far': total_bytes_resumed,
+        'chunks_status': [],
         'lock': threading.Lock(),
         'last_global_emit_time': [time.time()]
     }
+    for i in range(num_parts):
+        is_resumed = not any(c['index'] == i for c in chunks_to_download)
+        progress_data['chunks_status'].append({
+            'id': i,
+            'downloaded': chunk_actual_sizes[i] if is_resumed else 0,
+            'total': chunk_actual_sizes[i],
+            'active': False,
+            'speed_bps': 0.0
+        })
 
+    # --- Download Phase ---
     chunk_futures = []
     all_chunks_successful = True
-    total_bytes_from_chunks = 0
+    total_bytes_from_threads = 0
 
     with ThreadPoolExecutor(max_workers=num_parts, thread_name_prefix=f"MPChunk_{api_original_filename[:10]}_") as chunk_pool:
-        for i, (start, end) in enumerate(chunks_ranges):
-            if cancellation_event and cancellation_event.is_set(): all_chunks_successful = False; break
-            chunk_futures.append(chunk_pool.submit(
-                _download_individual_chunk, chunk_url=file_url, temp_file_path=temp_file_path,
+        for chunk_info in chunks_to_download:
+            if cancellation_event and cancellation_event.is_set():
+                all_chunks_successful = False
+                break
+            
+            i, start, end = chunk_info['index'], chunk_info['start'], chunk_info['end']
+            chunk_part_path = f"{save_path}.part{i}"
+            
+            future = chunk_pool.submit(
+                _download_individual_chunk,
+                chunk_url=file_url,
+                chunk_temp_file_path=chunk_part_path,
                 start_byte=start, end_byte=end, headers=headers, part_num=i, total_parts=num_parts,
-                progress_data=progress_data, cancellation_event=cancellation_event, skip_event=skip_event, global_emit_time_ref=progress_data['last_global_emit_time'],
-                pause_event=pause_event, cookies_for_chunk=cookies_for_chunk_session, logger_func=logger_func, emitter=emitter_for_multipart,
+                progress_data=progress_data, cancellation_event=cancellation_event,
+                skip_event=skip_event, global_emit_time_ref=progress_data['last_global_emit_time'],
+                pause_event=pause_event, cookies_for_chunk=cookies_for_chunk_session,
+                logger_func=logger_func, emitter=emitter_for_multipart,
                 api_original_filename=api_original_filename
-            ))
+            )
+            chunk_futures.append(future)
 
         for future in as_completed(chunk_futures):
-            if cancellation_event and cancellation_event.is_set(): all_chunks_successful = False; break
-            bytes_downloaded_this_chunk, success_this_chunk = future.result()
-            total_bytes_from_chunks += bytes_downloaded_this_chunk
-            if not success_this_chunk:
+            if cancellation_event and cancellation_event.is_set():
                 all_chunks_successful = False
+            bytes_downloaded, success = future.result()
+            total_bytes_from_threads += bytes_downloaded
+            if not success:
+                all_chunks_successful = False
+
+    total_bytes_final = total_bytes_resumed + total_bytes_from_threads
 
     if cancellation_event and cancellation_event.is_set():
         logger_func(f"   Multi-part download for '{api_original_filename}' cancelled by main event.")
         all_chunks_successful = False
-    if emitter_for_multipart:
-        with progress_data['lock']:
-            status_list_copy = [dict(s) for s in progress_data['chunks_status']]
-            if isinstance(emitter_for_multipart, queue.Queue):
-                emitter_for_multipart.put({'type': 'file_progress', 'payload': (api_original_filename, status_list_copy)})
-            elif hasattr(emitter_for_multipart, 'file_progress_signal'):
-                emitter_for_multipart.file_progress_signal.emit(api_original_filename, status_list_copy)
 
-    if all_chunks_successful and (total_bytes_from_chunks == total_size or total_size == 0):
-        logger_func(f"   ✅ Multi-part download successful for '{api_original_filename}'. Total bytes: {total_bytes_from_chunks}")
+    # --- Assembly and Cleanup Phase ---
+    if all_chunks_successful and (total_bytes_final == total_size or total_size == 0):
+        logger_func(f"   ✅ All {num_parts} chunks complete. Assembling final file...")
         md5_hasher = hashlib.md5()
-        with open(temp_file_path, 'rb') as f_hash:
-            for buf in iter(lambda: f_hash.read(4096*10), b''):
-                md5_hasher.update(buf)
-        calculated_hash = md5_hasher.hexdigest()
-        return True, total_bytes_from_chunks, calculated_hash, open(temp_file_path, 'rb')
+        try:
+            with open(save_path, 'wb') as final_file:
+                for i in range(num_parts):
+                    chunk_part_path = f"{save_path}.part{i}"
+                    with open(chunk_part_path, 'rb') as chunk_file:
+                        content = chunk_file.read()
+                        final_file.write(content)
+                        md5_hasher.update(content)
+            
+            calculated_hash = md5_hasher.hexdigest()
+            logger_func(f"   ✅ Assembly successful for '{api_original_filename}'. Total bytes: {total_bytes_final}")
+            return True, total_bytes_final, calculated_hash, open(save_path, 'rb')
+        except Exception as e:
+            logger_func(f"   ❌ Critical error during file assembly: {e}. Cleaning up.")
+            return False, total_bytes_final, None, None
+        finally:
+            # Cleanup all individual chunk files after successful assembly
+            for i in range(num_parts):
+                chunk_part_path = f"{save_path}.part{i}"
+                if os.path.exists(chunk_part_path):
+                    try:
+                        os.remove(chunk_part_path)
+                    except OSError as e:
+                        logger_func(f"    ⚠️ Failed to remove temp part file '{chunk_part_path}': {e}")
     else:
-        logger_func(f"   ❌ Multi-part download failed for '{api_original_filename}'. Success: {all_chunks_successful}, Bytes: {total_bytes_from_chunks}/{total_size}. Cleaning up.")
-        if os.path.exists(temp_file_path):
-            try: os.remove(temp_file_path)
-            except OSError as e: logger_func(f"    Failed to remove temp part file '{temp_file_path}': {e}")
-        return False, total_bytes_from_chunks, None, None
+        # If download failed, we do NOT clean up, allowing for resumption later
+        logger_func(f"   ❌ Multi-part download failed for '{api_original_filename}'. Success: {all_chunks_successful}, Bytes: {total_bytes_final}/{total_size}. Partial chunks saved for future resumption.")
+        return False, total_bytes_final, None, None

src/ui/assets.py

@@ -1,13 +1,7 @@
-# --- Standard Library Imports ---
 import os
 import sys
-
-# --- PyQt5 Imports ---
 from PyQt5.QtGui import QIcon
 
-# --- Asset Management ---
-
-# This global variable will cache the icon so we don't have to load it from disk every time.
 _app_icon_cache = None
 
 def get_app_icon_object():
@@ -22,17 +16,11 @@ def get_app_icon_object():
     if _app_icon_cache and not _app_icon_cache.isNull():
         return _app_icon_cache
 
-    # Declare a single variable to hold the base directory path.
     app_base_dir = ""
     
-    # Determine the project's base directory, whether running from source or as a bundled app
     if getattr(sys, 'frozen', False):
-        # The application is frozen (e.g., with PyInstaller).
-        # The base directory is the one containing the executable.
         app_base_dir = os.path.dirname(sys.executable)
     else:
-        # The application is running from a .py file.
-        # This path navigates up from src/ui/assets.py to the project root.
         app_base_dir = os.path.abspath(os.path.join(os.path.dirname(__file__), '..', '..'))
 
     icon_path = os.path.join(app_base_dir, 'assets', 'Kemono.ico')
@@ -40,7 +28,6 @@ def get_app_icon_object():
     if os.path.exists(icon_path):
         _app_icon_cache = QIcon(icon_path)
     else:
-        # If the icon isn't found, especially in a frozen app, check the _MEIPASS directory as a fallback.
         if getattr(sys, 'frozen', False) and hasattr(sys, '_MEIPASS'):
             fallback_icon_path = os.path.join(sys._MEIPASS, 'assets', 'Kemono.ico')
             if os.path.exists(fallback_icon_path):

src/ui/dialogs/ConfirmAddAllDialog.py

@@ -1,18 +1,10 @@
-# --- PyQt5 Imports ---
 from PyQt5.QtCore import Qt
 from PyQt5.QtWidgets import (
     QApplication, QDialog, QHBoxLayout, QLabel, QListWidget, QListWidgetItem,
     QPushButton, QVBoxLayout
 )
-
-# --- Local Application Imports ---
-# This assumes the new project structure is in place.
 from ...i18n.translator import get_translation
-# get_app_icon_object is defined in the main window module in this refactoring plan.
 from ..main_window import get_app_icon_object
-
-# --- Constants for Dialog Choices ---
-# These were moved from main.py to be self-contained within this module's context.
 CONFIRM_ADD_ALL_ACCEPTED = 1
 CONFIRM_ADD_ALL_SKIP_ADDING = 2
 CONFIRM_ADD_ALL_CANCEL_DOWNLOAD = 3
@@ -38,23 +30,16 @@ class ConfirmAddAllDialog(QDialog):
         self.parent_app = parent_app
         self.setModal(True)
         self.new_filter_objects_list = new_filter_objects_list
-        # Default choice if the dialog is closed without a button press
         self.user_choice = CONFIRM_ADD_ALL_CANCEL_DOWNLOAD
-
-        # --- Basic Window Setup ---
         app_icon = get_app_icon_object()
         if app_icon and not app_icon.isNull():
             self.setWindowIcon(app_icon)
-        
-        # Set window size dynamically
         screen_height = QApplication.primaryScreen().availableGeometry().height() if QApplication.primaryScreen() else 768
         scale_factor = screen_height / 768.0
         base_min_w, base_min_h = 480, 350
         scaled_min_w = int(base_min_w * scale_factor)
         scaled_min_h = int(base_min_h * scale_factor)
         self.setMinimumSize(scaled_min_w, scaled_min_h)
-
-        # --- Initialize UI and Apply Theming ---
         self._init_ui()
         self._retranslate_ui()
         self._apply_theme()
@@ -70,8 +55,6 @@ class ConfirmAddAllDialog(QDialog):
         self.names_list_widget = QListWidget()
         self._populate_list()
         main_layout.addWidget(self.names_list_widget)
-
-        # --- Selection Buttons ---
         selection_buttons_layout = QHBoxLayout()
         self.select_all_button = QPushButton()
         self.select_all_button.clicked.connect(self._select_all_items)
@@ -82,8 +65,6 @@ class ConfirmAddAllDialog(QDialog):
         selection_buttons_layout.addWidget(self.deselect_all_button)
         selection_buttons_layout.addStretch()
         main_layout.addLayout(selection_buttons_layout)
-
-        # --- Action Buttons ---
         buttons_layout = QHBoxLayout()
         self.add_selected_button = QPushButton()
         self.add_selected_button.clicked.connect(self._accept_add_selected)
@@ -171,7 +152,6 @@ class ConfirmAddAllDialog(QDialog):
         sensible default if no items are selected but the "Add" button is clicked.
         """
         super().exec_()
-        # If the user clicked "Add Selected" but didn't select any items, treat it as skipping.
         if isinstance(self.user_choice, list) and not self.user_choice:
             return CONFIRM_ADD_ALL_SKIP_ADDING
         return self.user_choice

src/ui/dialogs/CookieHelpDialog.py

@@ -8,7 +8,7 @@ from PyQt5.QtWidgets import (
 # --- Local Application Imports ---
 from ...i18n.translator import get_translation
 from ..main_window import get_app_icon_object
-
+from ...utils.resolution import get_dark_theme
 
 class CookieHelpDialog(QDialog):
     """

src/ui/dialogs/DownloadExtractedLinksDialog.py

@@ -1,27 +1,18 @@
-# --- Standard Library Imports ---
 from collections import defaultdict
-
-# --- PyQt5 Imports ---
 from PyQt5.QtCore import pyqtSignal, Qt
 from PyQt5.QtWidgets import (
     QApplication, QDialog, QHBoxLayout, QLabel, QListWidget, QListWidgetItem,
     QMessageBox, QPushButton, QVBoxLayout, QAbstractItemView
 )
-
-# --- Local Application Imports ---
-# This assumes the new project structure is in place.
 from ...i18n.translator import get_translation
-# get_app_icon_object is defined in the main window module in this refactoring plan.
 from ..main_window import get_app_icon_object
-
+from ...utils.resolution import get_dark_theme
 
 class DownloadExtractedLinksDialog(QDialog):
     """
     A dialog to select and initiate the download for extracted, supported links
     from external cloud services like Mega, Google Drive, and Dropbox.
     """
-
-    # Signal emitted with a list of selected link information dictionaries
     download_requested = pyqtSignal(list)
 
     def __init__(self, links_data, parent_app, parent=None):
@@ -36,29 +27,13 @@ class DownloadExtractedLinksDialog(QDialog):
         super().__init__(parent)
         self.links_data = links_data
         self.parent_app = parent_app
-
-        # --- Basic Window Setup ---
         app_icon = get_app_icon_object()
         if not app_icon.isNull():
             self.setWindowIcon(app_icon)
-
-        # Set window size dynamically based on the parent window's size
-        if parent:
-            parent_width = parent.width()
-            parent_height = parent.height()
-            # Use a scaling factor for different screen resolutions
-            screen_height = QApplication.primaryScreen().availableGeometry().height() if QApplication.primaryScreen() else 768
-            scale_factor = screen_height / 768.0
-
-            base_min_w, base_min_h = 500, 400
-            scaled_min_w = int(base_min_w * scale_factor)
-            scaled_min_h = int(base_min_h * scale_factor)
-
-            self.setMinimumSize(scaled_min_w, scaled_min_h)
-            self.resize(max(int(parent_width * 0.6 * scale_factor), scaled_min_w),
-                        max(int(parent_height * 0.7 * scale_factor), scaled_min_h))
-
-        # --- Initialize UI and Apply Theming ---
+        scale_factor = getattr(self.parent_app, 'scale_factor', 1.0)
+        base_width, base_height = 600, 450
+        self.setMinimumSize(int(base_width * scale_factor), int(base_height * scale_factor))
+        self.resize(int(base_width * scale_factor * 1.1), int(base_height * scale_factor * 1.1))
         self._init_ui()
         self._retranslate_ui()
         self._apply_theme()
@@ -76,8 +51,6 @@ class DownloadExtractedLinksDialog(QDialog):
         self.links_list_widget.setSelectionMode(QAbstractItemView.NoSelection)
         self._populate_list()
         layout.addWidget(self.links_list_widget)
-
-        # --- Control Buttons ---
         button_layout = QHBoxLayout()
         self.select_all_button = QPushButton()
         self.select_all_button.clicked.connect(lambda: self._set_all_items_checked(Qt.Checked))
@@ -108,7 +81,6 @@ class DownloadExtractedLinksDialog(QDialog):
         sorted_post_titles = sorted(grouped_links.keys(), key=lambda x: x.lower())
 
         for post_title_key in sorted_post_titles:
-            # Add a non-selectable header for each post
             header_item = QListWidgetItem(f"{post_title_key}")
             header_item.setFlags(Qt.NoItemFlags)
             font = header_item.font()
@@ -116,8 +88,6 @@ class DownloadExtractedLinksDialog(QDialog):
             font.setPointSize(font.pointSize() + 1)
             header_item.setFont(font)
             self.links_list_widget.addItem(header_item)
-
-            # Add checkable items for each link within that post
             for link_info_data in grouped_links[post_title_key]:
                 platform_display = link_info_data.get('platform', 'unknown').upper()
                 display_text = f"  [{platform_display}] {link_info_data['link_text']} ({link_info_data['url']})"
@@ -144,16 +114,16 @@ class DownloadExtractedLinksDialog(QDialog):
     
     def _apply_theme(self):
         """Applies the current theme from the parent application."""
-        is_dark_theme = self.parent() and hasattr(self.parent_app, 'current_theme') and self.parent_app.current_theme == "dark"
+        is_dark_theme = self.parent_app and self.parent_app.current_theme == "dark"
 
-        if is_dark_theme and hasattr(self.parent_app, 'get_dark_theme'):
-            self.setStyleSheet(self.parent_app.get_dark_theme())
-        
-        # Set header text color based on theme
+        if is_dark_theme:
+            scale = getattr(self.parent_app, 'scale_factor', 1)
+            self.setStyleSheet(get_dark_theme(scale))
+        else:
+            self.setStyleSheet("")
         header_color = Qt.cyan if is_dark_theme else Qt.blue
         for i in range(self.links_list_widget.count()):
             item = self.links_list_widget.item(i)
-            # Headers are not checkable
             if not item.flags() & Qt.ItemIsUserCheckable:
                 item.setForeground(header_color)
 

src/ui/dialogs/DownloadHistoryDialog.py

@@ -1,18 +1,15 @@
-# --- Standard Library Imports ---
 import os
 import time
 import json
-# --- PyQt5 Imports ---
 from PyQt5.QtCore import Qt, QStandardPaths, QTimer
 from PyQt5.QtWidgets import (
     QApplication, QDialog, QHBoxLayout, QLabel, QScrollArea,
     QPushButton, QVBoxLayout, QSplitter, QWidget, QGroupBox,
     QFileDialog, QMessageBox
 )
-
-# --- Local Application Imports ---
 from ...i18n.translator import get_translation
 from ..main_window import get_app_icon_object
+from ...utils.resolution import get_dark_theme
 
 
 class DownloadHistoryDialog (QDialog ):
@@ -23,18 +20,15 @@ class DownloadHistoryDialog (QDialog ):
         self .last_3_downloaded_entries =last_3_downloaded_entries 
         self .first_processed_entries =first_processed_entries 
         self .setModal (True )
-
-        # Patch missing creator_display_name and creator_name using parent_app.creator_name_cache if available
+        self._apply_theme()
         creator_name_cache = getattr(parent_app, 'creator_name_cache', None)
         if creator_name_cache:
-            # Patch left pane (files)
             for entry in self.last_3_downloaded_entries:
                 if not entry.get('creator_display_name'):
                     service = entry.get('service', '').lower()
                     user_id = str(entry.get('user_id', ''))
                     key = (service, user_id)
                     entry['creator_display_name'] = creator_name_cache.get(key, entry.get('folder_context_name', 'Unknown Creator/Series'))
-            # Patch right pane (posts)
             for entry in self.first_processed_entries:
                 if not entry.get('creator_name'):
                     service = entry.get('service', '').lower()
@@ -158,6 +152,14 @@ class DownloadHistoryDialog (QDialog ):
             return get_translation (self .parent_app .current_selected_language ,key ,default_text )
         return default_text 
 
+    def _apply_theme(self):
+        """Applies the current theme from the parent application."""
+        if self.parent_app and self.parent_app.current_theme == "dark":
+            scale = getattr(self.parent_app, 'scale_factor', 1)
+            self.setStyleSheet(get_dark_theme(scale))
+        else:
+            self.setStyleSheet("QDialog { background-color: #f0f0f0; }")
+
     def _save_history_to_txt (self ):
         if not self .last_3_downloaded_entries and not self .first_processed_entries :
             QMessageBox .information (self ,self ._tr ("no_download_history_header","No Downloads Yet"),

src/ui/dialogs/EmptyPopupDialog.py

@@ -13,7 +13,7 @@ from PyQt5.QtCore import pyqtSignal, QCoreApplication, QSize, QThread, QTimer, Q
 from PyQt5.QtWidgets import (
     QApplication, QDialog, QHBoxLayout, QLabel, QLineEdit, QListWidget,
     QListWidgetItem, QMessageBox, QPushButton, QVBoxLayout, QAbstractItemView,
-    QSplitter, QProgressBar, QWidget
+    QSplitter, QProgressBar, QWidget, QFileDialog  
 )
 
 # --- Local Application Imports ---
@@ -21,6 +21,7 @@ from ...i18n.translator import get_translation
 from ..main_window import get_app_icon_object
 from ...core.api_client import download_from_api
 from ...utils.network_utils import extract_post_info, prepare_cookies_for_request
+from ...utils.resolution import get_dark_theme
 
 
 class PostsFetcherThread (QThread ):
@@ -129,6 +130,7 @@ class PostsFetcherThread (QThread ):
             self .status_update .emit (self .parent_dialog ._tr ("post_fetch_finished_status","Finished fetching posts for selected creators."))
         self .finished_signal .emit ()
 
+
 class EmptyPopupDialog (QDialog ):
     """A simple empty popup dialog."""
     SCOPE_CHARACTERS ="Characters"
@@ -138,18 +140,19 @@ class EmptyPopupDialog (QDialog ):
 
     def __init__ (self ,app_base_dir ,parent_app_ref ,parent =None ):
         super ().__init__ (parent )
-        self .setMinimumSize (400 ,300 )
-        screen_height =QApplication .primaryScreen ().availableGeometry ().height ()if QApplication .primaryScreen ()else 768 
-        scale_factor =screen_height /768.0 
-        self .setMinimumSize (int (400 *scale_factor ),int (300 *scale_factor ))
+        self.parent_app = parent_app_ref
 
-        self .parent_app =parent_app_ref 
-        self .current_scope_mode =self .SCOPE_CHARACTERS 
+        scale_factor = getattr(self.parent_app, 'scale_factor', 1.0)
+        
+        self.setMinimumSize(int(400 * scale_factor), int(300 * scale_factor))
+        self.current_scope_mode = self.SCOPE_CREATORS
         self .app_base_dir =app_base_dir 
 
         app_icon =get_app_icon_object ()
         if app_icon and not app_icon .isNull ():
             self .setWindowIcon (app_icon )
+        self.update_profile_data = None
+        self.update_creator_name = None
         self .selected_creators_for_queue =[]
         self .globally_selected_creators ={}
         self .fetched_posts_data ={}
@@ -204,6 +207,9 @@ class EmptyPopupDialog (QDialog ):
         self .scope_button .clicked .connect (self ._toggle_scope_mode )
         left_bottom_buttons_layout .addWidget (self .scope_button )
         left_pane_layout .addLayout (left_bottom_buttons_layout )
+        self.update_button = QPushButton()
+        self.update_button.clicked.connect(self._handle_update_check) 
+        left_bottom_buttons_layout.addWidget(self.update_button)
 
 
         self .right_pane_widget =QWidget ()
@@ -289,9 +295,14 @@ class EmptyPopupDialog (QDialog ):
 
         self ._retranslate_ui ()
 
-        if self .parent_app and hasattr (self .parent_app ,'get_dark_theme')and self .parent_app .current_theme =="dark":
-            self .setStyleSheet (self .parent_app .get_dark_theme ())
-
+        if self.parent_app and self.parent_app.current_theme == "dark":
+            # Get the scale factor from the parent app
+            scale = getattr(self.parent_app, 'scale_factor', 1)
+            # Call the imported function with the correct scale
+            self.setStyleSheet(get_dark_theme(scale))
+        else:
+            # Explicitly set a blank stylesheet for light mode
+            self.setStyleSheet("")
 
         self .resize (int ((self .original_size .width ()+50 )*scale_factor ),int ((self .original_size .height ()+100 )*scale_factor ))
 
@@ -309,6 +320,31 @@ class EmptyPopupDialog (QDialog ):
             except AttributeError :
                 pass 
 
+    def _handle_update_check(self):
+        """Opens a dialog to select a creator profile and loads it for an update session."""
+        appdata_dir = os.path.join(self.app_base_dir, "appdata")
+        profiles_dir = os.path.join(appdata_dir, "creator_profiles")
+        
+        if not os.path.isdir(profiles_dir):
+            QMessageBox.warning(self, "Directory Not Found", f"The creator profiles directory does not exist yet.\n\nPath: {profiles_dir}")
+            return
+
+        filepath, _ = QFileDialog.getOpenFileName(self, "Select Creator Profile for Update", profiles_dir, "JSON Files (*.json)")
+
+        if filepath:
+            try:
+                with open(filepath, 'r', encoding='utf-8') as f:
+                    data = json.load(f)
+                
+                if 'creator_url' not in data or 'processed_post_ids' not in data:
+                    raise ValueError("Invalid profile format.")
+
+                self.update_profile_data = data
+                self.update_creator_name = os.path.basename(filepath).replace('.json', '')
+                self.accept() # Close the dialog and signal success
+            except Exception as e:
+                QMessageBox.critical(self, "Error Loading Profile", f"Could not load or parse the selected profile file:\n\n{e}")
+
     def _handle_fetch_posts_click (self ):
         selected_creators =list (self .globally_selected_creators .values ())
         print(f"[DEBUG] Selected creators for fetch: {selected_creators}")
@@ -364,6 +400,7 @@ class EmptyPopupDialog (QDialog ):
         self .add_selected_button .setText (self ._tr ("creator_popup_add_selected_button","Add Selected"))
         self .fetch_posts_button .setText (self ._tr ("fetch_posts_button_text","Fetch Posts"))
         self ._update_scope_button_text_and_tooltip ()
+        self.update_button.setText(self._tr("check_for_updates_button", "Check for Updates"))
 
         self .posts_search_input .setPlaceholderText (self ._tr ("creator_popup_posts_search_placeholder","Search fetched posts by title..."))
 
@@ -923,15 +960,19 @@ class EmptyPopupDialog (QDialog ):
 
                 self .parent_app .log_signal .emit (f"ℹ️ Added {num_just_added_posts } selected posts to the download queue. Total in queue: {total_in_queue }.")
 
+                # --- START: MODIFIED LOGIC ---
+                # Removed the blockSignals(True/False) calls to allow the main window's UI to update correctly.
                 if self .parent_app .link_input :
-                    self .parent_app .link_input .blockSignals (True )
                     self .parent_app .link_input .setText (
                     self .parent_app ._tr ("popup_posts_selected_text","Posts - {count} selected").format (count =num_just_added_posts )
                     )
-                    self .parent_app .link_input .blockSignals (False )
                     self .parent_app .link_input .setPlaceholderText (
                     self .parent_app ._tr ("items_in_queue_placeholder","{count} items in queue from popup.").format (count =total_in_queue )
                     )
+                # --- END: MODIFIED LOGIC ---
+            
+            self.selected_creators_for_queue.clear()
+            
             self .accept ()
         else :
             QMessageBox .information (self ,self ._tr ("no_selection_title","No Selection"),
@@ -949,9 +990,6 @@ class EmptyPopupDialog (QDialog ):
         self .add_selected_button .setEnabled (True )
         self .setWindowTitle (self ._tr ("creator_popup_title","Creator Selection"))
 
-
-
-
     def _get_domain_for_service (self ,service_name ):
         """Determines the base domain for a given service."""
         service_lower =service_name .lower ()

src/ui/dialogs/ErrorFilesDialog.py

@@ -10,7 +10,7 @@ from ...i18n.translator import get_translation
 from ..assets import get_app_icon_object
 # Corrected Import: The filename uses PascalCase.
 from .ExportOptionsDialog import ExportOptionsDialog
-
+from ...utils.resolution import get_dark_theme
 
 class ErrorFilesDialog(QDialog):
     """
@@ -42,13 +42,15 @@ class ErrorFilesDialog(QDialog):
         if app_icon and not app_icon.isNull():
             self.setWindowIcon(app_icon)
 
-        # Set window size dynamically
-        screen_height = QApplication.primaryScreen().availableGeometry().height() if QApplication.primaryScreen() else 768
-        scale_factor = screen_height / 1080.0
-        base_min_w, base_min_h = 500, 300
-        scaled_min_w = int(base_min_w * scale_factor)
-        scaled_min_h = int(base_min_h * scale_factor)
-        self.setMinimumSize(scaled_min_w, scaled_min_h)
+        # --- START OF FIX ---
+        # Get the user-defined scale factor from the parent application.
+        scale_factor = getattr(self.parent_app, 'scale_factor', 1.0)
+
+        # Define base dimensions and apply the correct scale factor.
+        base_width, base_height = 550, 400
+        self.setMinimumSize(int(base_width * scale_factor), int(base_height * scale_factor))
+        self.resize(int(base_width * scale_factor * 1.1), int(base_height * scale_factor * 1.1))
+        # --- END OF FIX ---
 
         # --- Initialize UI and Apply Theming ---
         self._init_ui()
@@ -132,9 +134,14 @@ class ErrorFilesDialog(QDialog):
 
     def _apply_theme(self):
         """Applies the current theme from the parent application."""
-        if self.parent_app and hasattr(self.parent_app, 'current_theme') and self.parent_app.current_theme == "dark":
-            if hasattr(self.parent_app, 'get_dark_theme'):
-                self.setStyleSheet(self.parent_app.get_dark_theme())
+        if self.parent_app and self.parent_app.current_theme == "dark":
+            # Get the scale factor from the parent app
+            scale = getattr(self.parent_app, 'scale_factor', 1)
+            # Call the imported function with the correct scale
+            self.setStyleSheet(get_dark_theme(scale))
+        else:
+            # Explicitly set a blank stylesheet for light mode
+            self.setStyleSheet("")
 
     def _select_all_items(self):
         """Checks all items in the list."""

src/ui/dialogs/ExportOptionsDialog.py

@@ -10,7 +10,7 @@ from PyQt5.QtWidgets import (
 from ...i18n.translator import get_translation
 # get_app_icon_object is defined in the main window module in this refactoring plan.
 from ..main_window import get_app_icon_object
-
+from ...utils.resolution import get_dark_theme
 
 class ExportOptionsDialog(QDialog):
     """

src/ui/dialogs/FavoriteArtistsDialog.py

@@ -16,7 +16,7 @@ from ...i18n.translator import get_translation
 from ..assets import get_app_icon_object 
 from ...utils.network_utils import prepare_cookies_for_request
 from .CookieHelpDialog import CookieHelpDialog
-
+from ...utils.resolution import get_dark_theme
 
 class FavoriteArtistsDialog (QDialog ):
     """Dialog to display and select favorite artists."""
@@ -37,13 +37,13 @@ class FavoriteArtistsDialog (QDialog ):
         self ._init_ui ()
         self ._fetch_favorite_artists ()
 
-    def _get_domain_for_service (self ,service_name ):
-        service_lower =service_name .lower ()
-        coomer_primary_services ={'onlyfans','fansly','manyvids','candfans'}
-        if service_lower in coomer_primary_services :
-            return "coomer.su"
-        else :
-            return "kemono.su"
+    def _get_domain_for_service(self, service_name):
+        service_lower = service_name.lower()
+        coomer_primary_services = {'onlyfans', 'fansly', 'manyvids', 'candfans'}
+        if service_lower in coomer_primary_services:
+            return "coomer.st"  # Use the new domain
+        else:
+            return "kemono.cr"   # Use the new domain
 
     def _tr (self ,key ,default_text =""):
         """Helper to get translation based on current app language."""
@@ -126,6 +126,41 @@ class FavoriteArtistsDialog (QDialog ):
         self .artist_list_widget .setVisible (show )
 
     def _fetch_favorite_artists (self ):
+
+        if self.cookies_config['use_cookie']:
+            # --- Kemono Check with Fallback ---
+            kemono_cookies = prepare_cookies_for_request(
+                True, self.cookies_config['cookie_text'], self.cookies_config['selected_cookie_file'],
+                self.cookies_config['app_base_dir'], self._logger, target_domain="kemono.cr"
+            )
+            if not kemono_cookies:
+                self._logger("No cookies for kemono.cr, trying fallback kemono.su...")
+                kemono_cookies = prepare_cookies_for_request(
+                    True, self.cookies_config['cookie_text'], self.cookies_config['selected_cookie_file'],
+                    self.cookies_config['app_base_dir'], self._logger, target_domain="kemono.su"
+                )
+
+            # --- Coomer Check with Fallback ---
+            coomer_cookies = prepare_cookies_for_request(
+                True, self.cookies_config['cookie_text'], self.cookies_config['selected_cookie_file'],
+                self.cookies_config['app_base_dir'], self._logger, target_domain="coomer.st"
+            )
+            if not coomer_cookies:
+                self._logger("No cookies for coomer.st, trying fallback coomer.su...")
+                coomer_cookies = prepare_cookies_for_request(
+                    True, self.cookies_config['cookie_text'], self.cookies_config['selected_cookie_file'],
+                    self.cookies_config['app_base_dir'], self._logger, target_domain="coomer.su"
+                )
+
+            if not kemono_cookies and not coomer_cookies:
+                # If cookies are enabled but none could be loaded, show help and stop.
+                self.status_label.setText(self._tr("fav_artists_cookies_required_status", "Error: Cookies enabled but could not be loaded for any source."))
+                self._logger("Error: Cookies enabled but no valid cookies were loaded. Showing help dialog.")
+                cookie_help_dialog = CookieHelpDialog(self.parent_app, self)
+                cookie_help_dialog.exec_()
+                self.download_button.setEnabled(False)
+                return  # Stop further execution
+
         kemono_fav_url ="https://kemono.su/api/v1/account/favorites?type=artist"
         coomer_fav_url ="https://coomer.su/api/v1/account/favorites?type=artist"
 
@@ -134,9 +169,12 @@ class FavoriteArtistsDialog (QDialog ):
         errors_occurred =[]
         any_cookies_loaded_successfully_for_any_source =False 
 
-        api_sources =[
-        {"name":"Kemono.su","url":kemono_fav_url ,"domain":"kemono.su"},
-        {"name":"Coomer.su","url":coomer_fav_url ,"domain":"coomer.su"}
+        kemono_cr_fav_url = "https://kemono.cr/api/v1/account/favorites?type=artist"
+        coomer_st_fav_url = "https://coomer.st/api/v1/account/favorites?type=artist"
+
+        api_sources = [
+            {"name": "Kemono.cr", "url": kemono_cr_fav_url, "domain": "kemono.cr"},
+            {"name": "Coomer.st", "url": coomer_st_fav_url, "domain": "coomer.st"}
         ]
 
         for source in api_sources :
@@ -144,20 +182,41 @@ class FavoriteArtistsDialog (QDialog ):
             self .status_label .setText (self ._tr ("fav_artists_loading_from_source_status","⏳ Loading favorites from {source_name}...").format (source_name =source ['name']))
             QCoreApplication .processEvents ()
 
-            cookies_dict_for_source =None 
-            if self .cookies_config ['use_cookie']:
-                cookies_dict_for_source =prepare_cookies_for_request (
-                True ,
-                self .cookies_config ['cookie_text'],
-                self .cookies_config ['selected_cookie_file'],
-                self .cookies_config ['app_base_dir'],
-                self ._logger ,
-                target_domain =source ['domain']
+            cookies_dict_for_source = None
+            if self.cookies_config['use_cookie']:
+                primary_domain = source['domain']
+                fallback_domain = None
+                if primary_domain == "kemono.cr":
+                    fallback_domain = "kemono.su"
+                elif primary_domain == "coomer.st":
+                    fallback_domain = "coomer.su"
+
+                # First, try the primary domain
+                cookies_dict_for_source = prepare_cookies_for_request(
+                    True,
+                    self.cookies_config['cookie_text'],
+                    self.cookies_config['selected_cookie_file'],
+                    self.cookies_config['app_base_dir'],
+                    self._logger,
+                    target_domain=primary_domain
                 )
-                if cookies_dict_for_source :
-                    any_cookies_loaded_successfully_for_any_source =True 
-                else :
-                    self ._logger (f"Warning ({source ['name']}): Cookies enabled but could not be loaded for this domain. Fetch might fail if cookies are required.")
+
+                # If no cookies found, try the fallback domain
+                if not cookies_dict_for_source and fallback_domain:
+                    self._logger(f"Warning ({source['name']}): No cookies found for '{primary_domain}'. Trying fallback '{fallback_domain}'...")
+                    cookies_dict_for_source = prepare_cookies_for_request(
+                        True,
+                        self.cookies_config['cookie_text'],
+                        self.cookies_config['selected_cookie_file'],
+                        self.cookies_config['app_base_dir'],
+                        self._logger,
+                        target_domain=fallback_domain
+                    )
+                
+                if cookies_dict_for_source:
+                    any_cookies_loaded_successfully_for_any_source = True
+                else:
+                    self._logger(f"Warning ({source['name']}): Cookies enabled but could not be loaded for this source (including fallbacks). Fetch might fail.")
             try :
                 headers ={'User-Agent':'Mozilla/5.0'}
                 response =requests .get (source ['url'],headers =headers ,cookies =cookies_dict_for_source ,timeout =20 )
@@ -208,7 +267,7 @@ class FavoriteArtistsDialog (QDialog ):
         if self .cookies_config ['use_cookie']and not any_cookies_loaded_successfully_for_any_source :
             self .status_label .setText (self ._tr ("fav_artists_cookies_required_status","Error: Cookies enabled but could not be loaded for any source."))
             self ._logger ("Error: Cookies enabled but no cookies loaded for any source. Showing help dialog.")
-            cookie_help_dialog =CookieHelpDialog (self )
+            cookie_help_dialog = CookieHelpDialog(self.parent_app, self)
             cookie_help_dialog .exec_ ()
             self .download_button .setEnabled (False )
             if not fetched_any_successfully :

src/ui/dialogs/FavoritePostsDialog.py

@@ -1,4 +1,3 @@
-# --- Standard Library Imports ---
 import html
 import os
 import sys
@@ -8,8 +7,6 @@ import traceback
 import json
 import re
 from collections import defaultdict
-
-# --- Third-Party Library Imports ---
 import requests
 from PyQt5.QtCore import QCoreApplication, Qt, pyqtSignal, QThread
 from PyQt5.QtWidgets import (
@@ -17,15 +14,12 @@ from PyQt5.QtWidgets import (
     QListWidgetItem, QMessageBox, QPushButton, QVBoxLayout, QProgressBar,
     QWidget, QCheckBox
 )
-
-# --- Local Application Imports ---
 from ...i18n.translator import get_translation
 from ..assets import get_app_icon_object
 from ...utils.network_utils import prepare_cookies_for_request
-# Corrected Import: Import CookieHelpDialog directly from its own module
 from .CookieHelpDialog import CookieHelpDialog
 from ...core.api_client import download_from_api
-
+from ...utils.resolution import get_dark_theme
 
 class FavoritePostsFetcherThread (QThread ):
     """Worker thread to fetch favorite posts and creator names."""
@@ -40,28 +34,30 @@ class FavoritePostsFetcherThread (QThread ):
         self .target_domain_preference =target_domain_preference 
         self .cancellation_event =threading .Event ()
         self .error_key_map ={
-        "Kemono.su":"kemono_su",
-        "Coomer.su":"coomer_su"
+        "kemono.cr":"kemono_su",
+        "coomer.st":"coomer_su"
         }
 
     def _logger (self ,message ):
         self .parent_logger_func (f"[FavPostsFetcherThread] {message }")
 
-    def run (self ):
-        kemono_fav_posts_url ="https://kemono.su/api/v1/account/favorites?type=post"
-        coomer_fav_posts_url ="https://coomer.su/api/v1/account/favorites?type=post"
+    def run(self):
+        kemono_su_fav_posts_url = "https://kemono.su/api/v1/account/favorites?type=post"
+        coomer_su_fav_posts_url = "https://coomer.su/api/v1/account/favorites?type=post"
+        kemono_cr_fav_posts_url = "https://kemono.cr/api/v1/account/favorites?type=post"
+        coomer_st_fav_posts_url = "https://coomer.st/api/v1/account/favorites?type=post"
 
-        all_fetched_posts_temp =[]
-        error_messages_for_summary =[]
-        fetched_any_successfully =False 
-        any_cookies_loaded_successfully_for_any_source =False 
+        all_fetched_posts_temp = []
+        error_messages_for_summary = []
+        fetched_any_successfully = False
+        any_cookies_loaded_successfully_for_any_source = False
 
-        self .status_update .emit ("key_fetching_fav_post_list_init")
-        self .progress_bar_update .emit (0 ,0 )
+        self.status_update.emit("key_fetching_fav_post_list_init")
+        self.progress_bar_update.emit(0, 0)
 
-        api_sources =[
-        {"name":"Kemono.su","url":kemono_fav_posts_url ,"domain":"kemono.su"},
-        {"name":"Coomer.su","url":coomer_fav_posts_url ,"domain":"coomer.su"}
+        api_sources = [
+            {"name": "Kemono.cr", "url": kemono_cr_fav_posts_url, "domain": "kemono.cr"},
+            {"name": "Coomer.st", "url": coomer_st_fav_posts_url, "domain": "coomer.st"}
         ]
 
         api_sources_to_try =[]
@@ -82,20 +78,41 @@ class FavoritePostsFetcherThread (QThread ):
             if self .cancellation_event .is_set ():
                 self .finished .emit ([],"KEY_FETCH_CANCELLED_DURING")
                 return 
-            cookies_dict_for_source =None 
-            if self .cookies_config ['use_cookie']:
-                cookies_dict_for_source =prepare_cookies_for_request (
-                True ,
-                self .cookies_config ['cookie_text'],
-                self .cookies_config ['selected_cookie_file'],
-                self .cookies_config ['app_base_dir'],
-                self ._logger ,
-                target_domain =source ['domain']
+            cookies_dict_for_source = None
+            if self.cookies_config['use_cookie']:
+                primary_domain = source['domain']
+                fallback_domain = None
+                if primary_domain == "kemono.cr":
+                    fallback_domain = "kemono.su"
+                elif primary_domain == "coomer.st":
+                    fallback_domain = "coomer.su"
+
+                # First, try the primary domain
+                cookies_dict_for_source = prepare_cookies_for_request(
+                    True,
+                    self.cookies_config['cookie_text'],
+                    self.cookies_config['selected_cookie_file'],
+                    self.cookies_config['app_base_dir'],
+                    self._logger,
+                    target_domain=primary_domain
                 )
-                if cookies_dict_for_source :
-                    any_cookies_loaded_successfully_for_any_source =True 
-                else :
-                    self ._logger (f"Warning ({source ['name']}): Cookies enabled but could not be loaded for this domain. Fetch might fail if cookies are required.")
+
+                # If no cookies found, try the fallback domain
+                if not cookies_dict_for_source and fallback_domain:
+                    self._logger(f"Warning ({source['name']}): No cookies found for '{primary_domain}'. Trying fallback '{fallback_domain}'...")
+                    cookies_dict_for_source = prepare_cookies_for_request(
+                        True,
+                        self.cookies_config['cookie_text'],
+                        self.cookies_config['selected_cookie_file'],
+                        self.cookies_config['app_base_dir'],
+                        self._logger,
+                        target_domain=fallback_domain
+                    )
+
+                if cookies_dict_for_source:
+                    any_cookies_loaded_successfully_for_any_source = True
+                else:
+                    self._logger(f"Warning ({source['name']}): Cookies enabled but could not be loaded for this domain. Fetch might fail if cookies are required.")
 
             self ._logger (f"Attempting to fetch favorite posts from: {source ['name']} ({source ['url']})")
             source_key_part =self .error_key_map .get (source ['name'],source ['name'].lower ().replace ('.','_'))
@@ -415,14 +432,14 @@ class FavoritePostsDialog (QDialog ):
             if status_key .startswith ("KEY_COOKIES_REQUIRED_BUT_NOT_FOUND_FOR_DOMAIN_")or status_key =="KEY_COOKIES_REQUIRED_BUT_NOT_FOUND_GENERIC":
                 status_label_text_key ="fav_posts_cookies_required_error"
                 self ._logger (f"Cookie error: {status_key }. Showing help dialog.")
-                cookie_help_dialog =CookieHelpDialog (self )
+                cookie_help_dialog = CookieHelpDialog(self.parent_app, self)
                 cookie_help_dialog .exec_ ()
             elif status_key =="KEY_AUTH_FAILED":
                 status_label_text_key ="fav_posts_auth_failed_title"
                 self ._logger (f"Auth error: {status_key }. Showing help dialog.")
                 QMessageBox .warning (self ,self ._tr ("fav_posts_auth_failed_title","Authorization Failed (Posts)"),
                 self ._tr ("fav_posts_auth_failed_message_generic","...").format (domain_specific_part =specific_domain_msg_part ))
-                cookie_help_dialog =CookieHelpDialog (self )
+                cookie_help_dialog = CookieHelpDialog(self.parent_app, self)
                 cookie_help_dialog .exec_ ()
             elif status_key =="KEY_NO_FAVORITES_FOUND_ALL_PLATFORMS":
                 status_label_text_key ="fav_posts_no_posts_found_status"

src/ui/dialogs/FutureSettingsDialog.py

@@ -1,170 +1,275 @@
 # --- Standard Library Imports ---
 import os
+import json
 
 # --- PyQt5 Imports ---
 from PyQt5.QtCore import Qt, QStandardPaths
 from PyQt5.QtWidgets import (
     QApplication, QDialog, QHBoxLayout, QLabel, QPushButton, QVBoxLayout,
-    QGroupBox, QComboBox, QMessageBox
+    QGroupBox, QComboBox, QMessageBox, QGridLayout, QCheckBox
 )
 
 # --- Local Application Imports ---
-# This assumes the new project structure is in place.
 from ...i18n.translator import get_translation
+from ...utils.resolution import get_dark_theme
 from ..main_window import get_app_icon_object
 from ...config.constants import (
-    THEME_KEY, LANGUAGE_KEY, DOWNLOAD_LOCATION_KEY
+    THEME_KEY, LANGUAGE_KEY, DOWNLOAD_LOCATION_KEY,
+    RESOLUTION_KEY, UI_SCALE_KEY, SAVE_CREATOR_JSON_KEY,
+    COOKIE_TEXT_KEY, USE_COOKIE_KEY,
+    FETCH_FIRST_KEY ### ADDED ###
 )
 
 
 class FutureSettingsDialog(QDialog):
     """
     A dialog for managing application-wide settings like theme, language,
-    and saving the default download path.
+    and display options, with an organized layout.
     """
     def __init__(self, parent_app_ref, parent=None):
-        """
-        Initializes the dialog.
-
-        Args:
-            parent_app_ref (DownloaderApp): A reference to the main application window.
-            parent (QWidget, optional): The parent widget. Defaults to None.
-        """
         super().__init__(parent)
         self.parent_app = parent_app_ref
         self.setModal(True)
 
-        # --- Basic Window Setup ---
         app_icon = get_app_icon_object()
         if app_icon and not app_icon.isNull():
             self.setWindowIcon(app_icon)
 
-        # Set window size dynamically
-        screen_height = QApplication.primaryScreen().availableGeometry().height() if QApplication.primaryScreen() else 768
-        scale_factor = screen_height / 768.0
-        base_min_w, base_min_h = 380, 250
+        screen_height = QApplication.primaryScreen().availableGeometry().height() if QApplication.primaryScreen() else 800
+        scale_factor = screen_height / 800.0
+        base_min_w, base_min_h = 420, 390
         scaled_min_w = int(base_min_w * scale_factor)
         scaled_min_h = int(base_min_h * scale_factor)
         self.setMinimumSize(scaled_min_w, scaled_min_h)
 
-        # --- Initialize UI and Apply Theming ---
         self._init_ui()
         self._retranslate_ui()
         self._apply_theme()
 
     def _init_ui(self):
         """Initializes all UI components and layouts for the dialog."""
-        layout = QVBoxLayout(self)
+        main_layout = QVBoxLayout(self)
 
-        # --- Appearance Settings ---
-        self.appearance_group_box = QGroupBox()
-        appearance_layout = QVBoxLayout(self.appearance_group_box)
+        self.interface_group_box = QGroupBox()
+        interface_layout = QGridLayout(self.interface_group_box)
+
+        # Theme
+        self.theme_label = QLabel()
         self.theme_toggle_button = QPushButton()
         self.theme_toggle_button.clicked.connect(self._toggle_theme)
-        appearance_layout.addWidget(self.theme_toggle_button)
-        layout.addWidget(self.appearance_group_box)
+        interface_layout.addWidget(self.theme_label, 0, 0)
+        interface_layout.addWidget(self.theme_toggle_button, 0, 1)
 
-        # --- Language Settings ---
-        self.language_group_box = QGroupBox()
-        language_group_layout = QVBoxLayout(self.language_group_box)
-        self.language_selection_layout = QHBoxLayout()
+        # UI Scale
+        self.ui_scale_label = QLabel()
+        self.ui_scale_combo_box = QComboBox()
+        self.ui_scale_combo_box.currentIndexChanged.connect(self._display_setting_changed)
+        interface_layout.addWidget(self.ui_scale_label, 1, 0)
+        interface_layout.addWidget(self.ui_scale_combo_box, 1, 1)
+        
+        # Language
         self.language_label = QLabel()
-        self.language_selection_layout.addWidget(self.language_label)
         self.language_combo_box = QComboBox()
         self.language_combo_box.currentIndexChanged.connect(self._language_selection_changed)
-        self.language_selection_layout.addWidget(self.language_combo_box, 1)
-        language_group_layout.addLayout(self.language_selection_layout)
-        layout.addWidget(self.language_group_box)
+        interface_layout.addWidget(self.language_label, 2, 0)
+        interface_layout.addWidget(self.language_combo_box, 2, 1)
 
-        # --- Download Settings ---
-        self.download_settings_group_box = QGroupBox()
-        download_settings_layout = QVBoxLayout(self.download_settings_group_box)
+        main_layout.addWidget(self.interface_group_box)
+
+        self.download_window_group_box = QGroupBox()
+        download_window_layout = QGridLayout(self.download_window_group_box)
+        self.window_size_label = QLabel()
+        self.resolution_combo_box = QComboBox()
+        self.resolution_combo_box.currentIndexChanged.connect(self._display_setting_changed)
+        download_window_layout.addWidget(self.window_size_label, 0, 0)
+        download_window_layout.addWidget(self.resolution_combo_box, 0, 1)
+
+        self.default_path_label = QLabel()
         self.save_path_button = QPushButton()
-        self.save_path_button.clicked.connect(self._save_download_path)
-        download_settings_layout.addWidget(self.save_path_button)
-        layout.addWidget(self.download_settings_group_box)
+        self.save_path_button.clicked.connect(self._save_cookie_and_path)
+        download_window_layout.addWidget(self.default_path_label, 1, 0)
+        download_window_layout.addWidget(self.save_path_button, 1, 1)
 
-        layout.addStretch(1)
+        self.save_creator_json_checkbox = QCheckBox()
+        self.save_creator_json_checkbox.stateChanged.connect(self._creator_json_setting_changed) 
+        download_window_layout.addWidget(self.save_creator_json_checkbox, 2, 0, 1, 2)
+        
+        self.fetch_first_checkbox = QCheckBox()
+        self.fetch_first_checkbox.stateChanged.connect(self._fetch_first_setting_changed)
+        download_window_layout.addWidget(self.fetch_first_checkbox, 3, 0, 1, 2)
+
+        main_layout.addWidget(self.download_window_group_box)
+
+        main_layout.addStretch(1)
 
-        # --- OK Button ---
         self.ok_button = QPushButton()
         self.ok_button.clicked.connect(self.accept)
-        layout.addWidget(self.ok_button, 0, Qt.AlignRight | Qt.AlignBottom)
+        main_layout.addWidget(self.ok_button, 0, Qt.AlignRight | Qt.AlignBottom)
+
+    def _load_checkbox_states(self):
+        """Loads the initial state for all checkboxes from settings."""
+        self.save_creator_json_checkbox.blockSignals(True)
+        should_save = self.parent_app.settings.value(SAVE_CREATOR_JSON_KEY, True, type=bool)
+        self.save_creator_json_checkbox.setChecked(should_save)
+        self.save_creator_json_checkbox.blockSignals(False)
+
+        self.fetch_first_checkbox.blockSignals(True)
+        should_fetch_first = self.parent_app.settings.value(FETCH_FIRST_KEY, False, type=bool)
+        self.fetch_first_checkbox.setChecked(should_fetch_first)
+        self.fetch_first_checkbox.blockSignals(False)
+
+    def _creator_json_setting_changed(self, state):
+        """Saves the state of the 'Save Creator.json' checkbox."""
+        is_checked = state == Qt.Checked
+        self.parent_app.settings.setValue(SAVE_CREATOR_JSON_KEY, is_checked)
+        self.parent_app.settings.sync()
+
+    def _fetch_first_setting_changed(self, state):
+        """Saves the state of the 'Fetch First' checkbox."""
+        is_checked = state == Qt.Checked
+        self.parent_app.settings.setValue(FETCH_FIRST_KEY, is_checked)
+        self.parent_app.settings.sync()
 
     def _tr(self, key, default_text=""):
-        """Helper to get translation based on the main application's current language."""
         if callable(get_translation) and self.parent_app:
             return get_translation(self.parent_app.current_selected_language, key, default_text)
         return default_text
 
     def _retranslate_ui(self):
-        """Sets the text for all translatable UI elements."""
         self.setWindowTitle(self._tr("settings_dialog_title", "Settings"))
-        self.appearance_group_box.setTitle(self._tr("appearance_group_title", "Appearance"))
-        self.language_group_box.setTitle(self._tr("language_group_title", "Language Settings"))
-        self.download_settings_group_box.setTitle(self._tr("settings_download_group_title", "Download Settings"))
-        self.language_label.setText(self._tr("language_label", "Language:"))
-        self._update_theme_toggle_button_text()
-        self._populate_language_combo_box()
         
-        self.save_path_button.setText(self._tr("settings_save_path_button", "Save Current Download Path"))
-        self.save_path_button.setToolTip(self._tr("settings_save_path_tooltip", "Save the current 'Download Location' for future sessions."))
+        self.interface_group_box.setTitle(self._tr("interface_group_title", "Interface Settings"))
+        self.download_window_group_box.setTitle(self._tr("download_window_group_title", "Download & Window Settings"))
+
+        self.theme_label.setText(self._tr("theme_label", "Theme:"))
+        self.ui_scale_label.setText(self._tr("ui_scale_label", "UI Scale:"))
+        self.language_label.setText(self._tr("language_label", "Language:"))
+        
+        self.window_size_label.setText(self._tr("window_size_label", "Window Size:"))
+        self.default_path_label.setText(self._tr("default_path_label", "Default Path:"))
+        self.save_creator_json_checkbox.setText(self._tr("save_creator_json_label", "Save Creator.json file"))
+        
+        self.fetch_first_checkbox.setText(self._tr("fetch_first_label", "Fetch First (Download after all pages are found)"))
+        self.fetch_first_checkbox.setToolTip(self._tr("fetch_first_tooltip", "If checked, the downloader will find all posts from a creator first before starting any downloads.\nThis can be slower to start but provides a more accurate progress bar."))
+        
+        self._update_theme_toggle_button_text()
+        self.save_path_button.setText(self._tr("settings_save_cookie_path_button", "Save Cookie + Download Path"))
+        self.save_path_button.setToolTip(self._tr("settings_save_cookie_path_tooltip", "Save the current 'Download Location' and Cookie settings for future sessions."))
         self.ok_button.setText(self._tr("ok_button", "OK"))
 
+        self._populate_display_combo_boxes()
+        self._populate_language_combo_box()
+        self._load_checkbox_states()
+
+    # --- (The rest of the file remains unchanged) ---
+
     def _apply_theme(self):
-        """Applies the current theme from the parent application."""
-        if self.parent_app.current_theme == "dark":
-            self.setStyleSheet(self.parent_app.get_dark_theme())
+        if self.parent_app and self.parent_app.current_theme == "dark":
+            scale = getattr(self.parent_app, 'scale_factor', 1)
+            self.setStyleSheet(get_dark_theme(scale))
         else:
             self.setStyleSheet("")
 
     def _update_theme_toggle_button_text(self):
-        """Updates the theme button text and tooltip based on the current theme."""
         if self.parent_app.current_theme == "dark":
             self.theme_toggle_button.setText(self._tr("theme_toggle_light", "Switch to Light Mode"))
-            self.theme_toggle_button.setToolTip(self._tr("theme_tooltip_light", "Change the application appearance to light."))
         else:
             self.theme_toggle_button.setText(self._tr("theme_toggle_dark", "Switch to Dark Mode"))
-            self.theme_toggle_button.setToolTip(self._tr("theme_tooltip_dark", "Change the application appearance to dark."))
 
     def _toggle_theme(self):
-        """Toggles the application theme and updates the UI."""
         new_theme = "light" if self.parent_app.current_theme == "dark" else "dark"
-        self.parent_app.apply_theme(new_theme)
-        self._retranslate_ui()
+        self.parent_app.settings.setValue(THEME_KEY, new_theme)
+        self.parent_app.settings.sync()
+        self.parent_app.current_theme = new_theme
         self._apply_theme()
+        if hasattr(self.parent_app, '_apply_theme_and_restart_prompt'):
+            self.parent_app._apply_theme_and_restart_prompt()
+
+    def _populate_display_combo_boxes(self):
+        self.resolution_combo_box.blockSignals(True)
+        self.resolution_combo_box.clear()
+        resolutions = [
+            ("Auto", self._tr("auto_resolution", "Auto (System Default)")),
+            ("1280x720", "1280 x 720"),
+            ("1600x900", "1600 x 900"),
+            ("1920x1080", "1920 x 1080 (Full HD)"),
+            ("2560x1440", "2560 x 1440 (2K)"),
+            ("3840x2160", "3840 x 2160 (4K)")
+        ]
+        current_res = self.parent_app.settings.value(RESOLUTION_KEY, "Auto")
+        for res_key, res_name in resolutions:
+            self.resolution_combo_box.addItem(res_name, res_key)
+            if current_res == res_key:
+                self.resolution_combo_box.setCurrentIndex(self.resolution_combo_box.count() - 1)
+        self.resolution_combo_box.blockSignals(False)
+
+        self.ui_scale_combo_box.blockSignals(True)
+        self.ui_scale_combo_box.clear()
+        scales = [
+            (0.5, "50%"),
+            (0.7, "70%"),
+            (0.9, "90%"),
+            (1.0, "100% (Default)"),
+            (1.25, "125%"),
+            (1.50, "150%"),
+            (1.75, "175%"),
+            (2.0, "200%")
+        ]
+
+        current_scale = float(self.parent_app.settings.value(UI_SCALE_KEY, 1.0))
+        for scale_val, scale_name in scales:
+            self.ui_scale_combo_box.addItem(scale_name, scale_val)
+            if abs(current_scale - scale_val) < 0.01:
+                self.ui_scale_combo_box.setCurrentIndex(self.ui_scale_combo_box.count() - 1)
+        self.ui_scale_combo_box.blockSignals(False)
+
+    def _display_setting_changed(self):
+        selected_res = self.resolution_combo_box.currentData()
+        selected_scale = self.ui_scale_combo_box.currentData()
+
+        self.parent_app.settings.setValue(RESOLUTION_KEY, selected_res)
+        self.parent_app.settings.setValue(UI_SCALE_KEY, selected_scale)
+        self.parent_app.settings.sync()
+
+        msg_box = QMessageBox(self)
+        msg_box.setIcon(QMessageBox.Information)
+        msg_box.setWindowTitle(self._tr("display_change_title", "Display Settings Changed"))
+        msg_box.setText(self._tr("language_change_message", "A restart is required for these changes to take effect."))
+        msg_box.setInformativeText(self._tr("language_change_informative", "Would you like to restart now?"))
+        restart_button = msg_box.addButton(self._tr("restart_now_button", "Restart Now"), QMessageBox.ApplyRole)
+        ok_button = msg_box.addButton(self._tr("ok_button", "OK"), QMessageBox.AcceptRole)
+        msg_box.setDefaultButton(ok_button)
+        msg_box.exec_()
+
+        if msg_box.clickedButton() == restart_button:
+            self.parent_app._request_restart_application()
 
     def _populate_language_combo_box(self):
-        """Populates the language dropdown with available languages."""
         self.language_combo_box.blockSignals(True)
         self.language_combo_box.clear()
         languages = [
-        ("en","English"),
-        ("ja","日本語 (Japanese)"),
-        ("fr","Français (French)"),
-        ("de","Deutsch (German)"),
-        ("es","Español (Spanish)"),
-        ("pt","Português (Portuguese)"),
-        ("ru","Русский (Russian)"),
-        ("zh_CN","简体中文 (Simplified Chinese)"),
-        ("zh_TW","繁體中文 (Traditional Chinese)"),
-        ("ko","한국어 (Korean)")
+            ("en", "English"), ("ja", "日本語 (Japanese)"), ("fr", "Français (French)"),
+            ("de", "Deutsch (German)"), ("es", "Español (Spanish)"), ("pt", "Português (Portuguese)"),
+            ("ru", "Русский (Russian)"), ("zh_CN", "简体中文 (Simplified Chinese)"),
+            ("zh_TW", "繁體中文 (Traditional Chinese)"), ("ko", "한국어 (Korean)")
         ]
+        current_lang = self.parent_app.current_selected_language
         for lang_code, lang_name in languages:
             self.language_combo_box.addItem(lang_name, lang_code)
-            if self.parent_app.current_selected_language == lang_code:
+            if current_lang == lang_code:
                 self.language_combo_box.setCurrentIndex(self.language_combo_box.count() - 1)
         self.language_combo_box.blockSignals(False)
 
     def _language_selection_changed(self, index):
-        """Handles the user selecting a new language."""
         selected_lang_code = self.language_combo_box.itemData(index)
         if selected_lang_code and selected_lang_code != self.parent_app.current_selected_language:
-            self.parent_app.current_selected_language = selected_lang_code
             self.parent_app.settings.setValue(LANGUAGE_KEY, selected_lang_code)
             self.parent_app.settings.sync()
+            self.parent_app.current_selected_language = selected_lang_code
             
             self._retranslate_ui()
+            if hasattr(self.parent_app, '_retranslate_main_ui'):
+                 self.parent_app._retranslate_main_ui()
             
             msg_box = QMessageBox(self)
             msg_box.setIcon(QMessageBox.Information)
@@ -179,24 +284,41 @@ class FutureSettingsDialog(QDialog):
             if msg_box.clickedButton() == restart_button:
                 self.parent_app._request_restart_application()
 
-    def _save_download_path(self):
-        """Saves the current download path from the main window to settings."""
+    def _save_cookie_and_path(self):
+        """Saves the current download path and/or cookie settings from the main window."""
+        path_saved = False
+        cookie_saved = False
+        
         if hasattr(self.parent_app, 'dir_input') and self.parent_app.dir_input:
             current_path = self.parent_app.dir_input.text().strip()
-            if current_path:
-                if os.path.isdir(current_path):
-                    self.parent_app.settings.setValue(DOWNLOAD_LOCATION_KEY, current_path)
-                    self.parent_app.settings.sync()
-                    QMessageBox.information(self,
-                        self._tr("settings_save_path_success_title", "Path Saved"),
-                        self._tr("settings_save_path_success_message", "Download location '{path}' saved.").format(path=current_path))
-                else:
-                    QMessageBox.warning(self,
-                        self._tr("settings_save_path_invalid_title", "Invalid Path"),
-                        self._tr("settings_save_path_invalid_message", "The path '{path}' is not a valid directory.").format(path=current_path))
+            if current_path and os.path.isdir(current_path):
+                self.parent_app.settings.setValue(DOWNLOAD_LOCATION_KEY, current_path)
+                path_saved = True
+        
+        if hasattr(self.parent_app, 'use_cookie_checkbox'):
+            use_cookie = self.parent_app.use_cookie_checkbox.isChecked()
+            cookie_content = self.parent_app.cookie_text_input.text().strip()
+            
+            if use_cookie and cookie_content:
+                self.parent_app.settings.setValue(USE_COOKIE_KEY, True)
+                self.parent_app.settings.setValue(COOKIE_TEXT_KEY, cookie_content)
+                cookie_saved = True
             else: 
-                QMessageBox.warning(self,
-                    self._tr("settings_save_path_empty_title", "Empty Path"),
-                    self._tr("settings_save_path_empty_message", "Download location cannot be empty."))
+                self.parent_app.settings.setValue(USE_COOKIE_KEY, False)
+                self.parent_app.settings.setValue(COOKIE_TEXT_KEY, "")
+
+        self.parent_app.settings.sync()
+
+        # --- User Feedback ---
+        if path_saved and cookie_saved:
+            message = self._tr("settings_save_both_success", "Download location and cookie settings saved.")
+        elif path_saved:
+            message = self._tr("settings_save_path_only_success", "Download location saved. No cookie settings were active to save.")
+        elif cookie_saved:
+            message = self._tr("settings_save_cookie_only_success", "Cookie settings saved. Download location was not set.")
         else:
-            QMessageBox.critical(self, "Error", "Could not access download path input from main application.")
+            QMessageBox.warning(self, self._tr("settings_save_nothing_title", "Nothing to Save"),
+                                self._tr("settings_save_nothing_message", "The download location is not a valid directory and no cookie was active."))
+            return
+
+        QMessageBox.information(self, self._tr("settings_save_success_title", "Settings Saved"), message)

src/ui/dialogs/HelpGuideDialog.py

@@ -1,34 +1,32 @@
-# --- Standard Library Imports ---
 import os
 import sys
-
-# --- PyQt5 Imports ---
 from PyQt5.QtCore import QUrl, QSize, Qt
 from PyQt5.QtGui import QIcon, QDesktopServices
 from PyQt5.QtWidgets import (
     QApplication, QDialog, QHBoxLayout, QLabel, QPushButton, QVBoxLayout,
-    QStackedWidget, QScrollArea, QFrame, QWidget
+    QStackedWidget, QListWidget, QFrame, QWidget, QScrollArea
 )
-
-# --- Local Application Imports ---
 from ...i18n.translator import get_translation
 from ..main_window import get_app_icon_object
-
+from ...utils.resolution import get_dark_theme
 
 class TourStepWidget(QWidget):
     """
     A custom widget representing a single step or page in the feature guide.
     It neatly formats a title and its corresponding content.
     """
-    def __init__(self, title_text, content_text, parent=None):
+    def __init__(self, title_text, content_text, parent=None, scale=1.0):
         super().__init__(parent)
         layout = QVBoxLayout(self)
         layout.setContentsMargins(20, 20, 20, 20)
         layout.setSpacing(10)
 
+        title_font_size = int(14 * scale)
+        content_font_size = int(11 * scale)
+
         title_label = QLabel(title_text)
         title_label.setAlignment(Qt.AlignCenter)
-        title_label.setStyleSheet("font-size: 18px; font-weight: bold; color: #E0E0E0; padding-bottom: 15px;")
+        title_label.setStyleSheet(f"font-size: {title_font_size}pt; font-weight: bold; color: #E0E0E0; padding-bottom: 15px;")
         layout.addWidget(title_label)
         
         scroll_area = QScrollArea()
@@ -42,151 +40,153 @@ class TourStepWidget(QWidget):
         content_label.setWordWrap(True)
         content_label.setAlignment(Qt.AlignLeft | Qt.AlignTop)
         content_label.setTextFormat(Qt.RichText)
-        content_label.setOpenExternalLinks(True) # Allow opening links in the content
-        content_label.setStyleSheet("font-size: 11pt; color: #C8C8C8; line-height: 1.8;")
+        content_label.setOpenExternalLinks(True)
+        content_label.setStyleSheet(f"font-size: {content_font_size}pt; color: #C8C8C8; line-height: 1.8;")
         scroll_area.setWidget(content_label)
         layout.addWidget(scroll_area, 1)
 
 
-class HelpGuideDialog (QDialog ):
-    """A multi-page dialog for displaying the feature guide."""
-    def __init__ (self ,steps_data ,parent_app ,parent =None ):
-        super ().__init__ (parent )
-        self .current_step =0 
-        self .steps_data =steps_data 
-        self .parent_app =parent_app 
+class HelpGuideDialog(QDialog):
+    """A multi-page dialog for displaying the feature guide with a navigation list."""
+    def __init__(self, steps_data, parent_app, parent=None):
+        super().__init__(parent)
+        self.steps_data = steps_data
+        self.parent_app = parent_app
 
-        app_icon =get_app_icon_object ()
+        scale = self.parent_app.scale_factor if hasattr(self.parent_app, 'scale_factor') else 1.0
+
+        app_icon = get_app_icon_object()
         if app_icon and not app_icon.isNull():
             self.setWindowIcon(app_icon)
 
-        self .setModal (True )
-        self .setFixedSize (650 ,600 )
+        self.setModal(True)
+        self.resize(int(800 * scale), int(650 * scale))
 
+        dialog_font_size = int(11 * scale)
         
-        current_theme_style =""
-        if hasattr (self .parent_app ,'current_theme')and self .parent_app .current_theme =="dark":
-            if hasattr (self .parent_app ,'get_dark_theme'):
-                current_theme_style =self .parent_app .get_dark_theme ()
+        current_theme_style = ""
+        if hasattr(self.parent_app, 'current_theme') and self.parent_app.current_theme == "dark":
+            current_theme_style = get_dark_theme(scale)
+        else:
+            # Basic light theme fallback
+            current_theme_style = f"""
+                QDialog {{ background-color: #F0F0F0; border: 1px solid #B0B0B0; }}
+                QLabel {{ color: #1E1E1E; }}
+                QPushButton {{ 
+                    background-color: #E1E1E1; 
+                    color: #1E1E1E; 
+                    border: 1px solid #ADADAD; 
+                    padding: {int(8*scale)}px {int(15*scale)}px; 
+                    border-radius: 4px; 
+                    min-height: {int(25*scale)}px; 
+                    font-size: {dialog_font_size}pt; 
+                }}
+                QPushButton:hover {{ background-color: #CACACA; }}
+                QPushButton:pressed {{ background-color: #B0B0B0; }}
+            """
 
+        self.setStyleSheet(current_theme_style)
+        self._init_ui()
+        if self.parent_app:
+            self.move(self.parent_app.geometry().center() - self.rect().center())
 
-        self .setStyleSheet (current_theme_style if current_theme_style else """
-            QDialog { background-color: #2E2E2E; border: 1px solid #5A5A5A; }
-            QLabel { color: #E0E0E0; }
-            QPushButton { background-color: #555; color: #F0F0F0; border: 1px solid #6A6A6A; padding: 8px 15px; border-radius: 4px; min-height: 25px; font-size: 11pt; }
-            QPushButton:hover { background-color: #656565; }
-            QPushButton:pressed { background-color: #4A4A4A; }
-        """)
-        self ._init_ui ()
-        if self .parent_app :
-            self .move (self .parent_app .geometry ().center ()-self .rect ().center ())
-
-    def _tr (self ,key ,default_text =""):
+    def _tr(self, key, default_text=""):
         """Helper to get translation based on current app language."""
-        if callable (get_translation )and self .parent_app :
-            return get_translation (self .parent_app .current_selected_language ,key ,default_text )
+        if callable(get_translation) and self.parent_app:
+            return get_translation(self.parent_app.current_selected_language, key, default_text)
         return default_text
 
+    def _init_ui(self):
+        main_layout = QVBoxLayout(self)
+        main_layout.setContentsMargins(15, 15, 15, 15)
+        main_layout.setSpacing(10)
 
-    def _init_ui (self ):
-        main_layout =QVBoxLayout (self )
-        main_layout .setContentsMargins (0 ,0 ,0 ,0 )
-        main_layout .setSpacing (0 )
+        # Title
+        title_label = QLabel(self._tr("help_guide_dialog_title", "Kemono Downloader - Feature Guide"))
+        scale = getattr(self.parent_app, 'scale_factor', 1.0)
+        title_font_size = int(16 * scale)
+        title_label.setStyleSheet(f"font-size: {title_font_size}pt; font-weight: bold; color: #E0E0E0;")
+        title_label.setAlignment(Qt.AlignCenter)
+        main_layout.addWidget(title_label)
 
-        self .stacked_widget =QStackedWidget ()
-        main_layout .addWidget (self .stacked_widget ,1 )
+        # Content Layout (Navigation + Stacked Pages)
+        content_layout = QHBoxLayout()
+        main_layout.addLayout(content_layout, 1)
 
-        self .tour_steps_widgets =[]
-        for title ,content in self .steps_data :
-            step_widget =TourStepWidget (title ,content )
-            self .tour_steps_widgets .append (step_widget )
-            self .stacked_widget .addWidget (step_widget )
+        self.nav_list = QListWidget()
+        self.nav_list.setFixedWidth(int(220 * scale))
+        self.nav_list.setStyleSheet(f"""
+            QListWidget {{
+                background-color: #2E2E2E;
+                border: 1px solid #4A4A4A;
+                border-radius: 4px;
+                font-size: {int(11 * scale)}pt;
+            }}
+            QListWidget::item {{
+                padding: 10px;
+                border-bottom: 1px solid #4A4A4A;
+            }}
+            QListWidget::item:selected {{
+                background-color: #87CEEB;
+                color: #2E2E2E;
+                font-weight: bold;
+            }}
+        """)
+        content_layout.addWidget(self.nav_list)
 
-        self .setWindowTitle (self ._tr ("help_guide_dialog_title","Kemono Downloader - Feature Guide"))
+        self.stacked_widget = QStackedWidget()
+        content_layout.addWidget(self.stacked_widget)
 
-        buttons_layout =QHBoxLayout ()
-        buttons_layout .setContentsMargins (15 ,10 ,15 ,15 )
-        buttons_layout .setSpacing (10 )
+        for title_key, content_key in self.steps_data:
+            title = self._tr(title_key, title_key)
+            content = self._tr(content_key, f"Content for {content_key} not found.")
             
-        self .back_button =QPushButton (self ._tr ("tour_dialog_back_button","Back"))
-        self .back_button .clicked .connect (self ._previous_step )
-        self .back_button .setEnabled (False )
+            self.nav_list.addItem(title)
             
-        if getattr (sys ,'frozen',False )and hasattr (sys ,'_MEIPASS'):
-            assets_base_dir =sys ._MEIPASS 
-        else :
-            # Go up three levels from this file's directory (src/ui/dialogs) to the project root
-            assets_base_dir =os.path.abspath(os.path.join(os.path.dirname(__file__), '..', '..', '..'))
+            step_widget = TourStepWidget(title, content, scale=scale)
+            self.stacked_widget.addWidget(step_widget)
 
-        github_icon_path =os .path .join (assets_base_dir ,"assets","github.png")
-        instagram_icon_path =os .path .join (assets_base_dir ,"assets","instagram.png")
-        discord_icon_path =os .path .join (assets_base_dir ,"assets","discord.png")
+        self.nav_list.currentRowChanged.connect(self.stacked_widget.setCurrentIndex)
+        if self.nav_list.count() > 0:
+            self.nav_list.setCurrentRow(0)
 
-        self .github_button =QPushButton (QIcon (github_icon_path ),"")
-        self .instagram_button =QPushButton (QIcon (instagram_icon_path ),"")
-        self .Discord_button =QPushButton (QIcon (discord_icon_path ),"")
+        # Footer Layout (Social links and Close button)
+        footer_layout = QHBoxLayout()
+        footer_layout.setContentsMargins(0, 10, 0, 0)
         
-        icon_size =QSize (24 ,24 )
-        self .github_button .setIconSize (icon_size )
-        self .instagram_button .setIconSize (icon_size )
-        self .Discord_button .setIconSize (icon_size )
+        # Social Media Icons
+        if getattr(sys, 'frozen', False) and hasattr(sys, '_MEIPASS'):
+            assets_base_dir = sys._MEIPASS
+        else:
+            assets_base_dir = os.path.abspath(os.path.join(os.path.dirname(__file__), '..', '..', '..'))
 
-        self .next_button =QPushButton (self ._tr ("tour_dialog_next_button","Next"))
-        self .next_button .clicked .connect (self ._next_step_action )
-        self .next_button .setDefault (True )
-        self .github_button .clicked .connect (self ._open_github_link )
-        self .instagram_button .clicked .connect (self ._open_instagram_link )
-        self .Discord_button .clicked .connect (self ._open_Discord_link )
-        self .github_button .setToolTip (self ._tr ("help_guide_github_tooltip","Visit project's GitHub page (Opens in browser)"))
-        self .instagram_button .setToolTip (self ._tr ("help_guide_instagram_tooltip","Visit our Instagram page (Opens in browser)"))
-        self .Discord_button .setToolTip (self ._tr ("help_guide_discord_tooltip","Visit our Discord community (Opens in browser)"))
+        github_icon_path = os.path.join(assets_base_dir, "assets", "github.png")
+        instagram_icon_path = os.path.join(assets_base_dir, "assets", "instagram.png")
+        discord_icon_path = os.path.join(assets_base_dir, "assets", "discord.png")
 
+        self.github_button = QPushButton(QIcon(github_icon_path), "")
+        self.instagram_button = QPushButton(QIcon(instagram_icon_path), "")
+        self.discord_button = QPushButton(QIcon(discord_icon_path), "")
 
-        social_layout =QHBoxLayout ()
-        social_layout .setSpacing (10 )
-        social_layout .addWidget (self .github_button )
-        social_layout .addWidget (self .instagram_button )
-        social_layout .addWidget (self .Discord_button )
+        icon_dim = int(24 * scale)
+        icon_size = QSize(icon_dim, icon_dim)
         
-        while buttons_layout .count ():
-            item =buttons_layout .takeAt (0 )
-            if item .widget ():
-                item .widget ().setParent (None )
-            elif item .layout ():
-                pass 
-        buttons_layout .addLayout (social_layout )
-        buttons_layout .addStretch (1 )
-        buttons_layout .addWidget (self .back_button )
-        buttons_layout .addWidget (self .next_button )
-        main_layout .addLayout (buttons_layout )
-        self ._update_button_states ()
+        for button, tooltip_key, url in [
+            (self.github_button, "help_guide_github_tooltip", "https://github.com/Yuvi9587"),
+            (self.instagram_button, "help_guide_instagram_tooltip", "https://www.instagram.com/uvi.arts/"),
+            (self.discord_button, "help_guide_discord_tooltip", "https://discord.gg/BqP64XTdJN")
+        ]:
+            button.setIconSize(icon_size)
+            button.setToolTip(self._tr(tooltip_key))
+            button.setFixedSize(icon_size.width() + 8, icon_size.height() + 8)
+            button.setStyleSheet("background-color: transparent; border: none;")
+            button.clicked.connect(lambda _, u=url: QDesktopServices.openUrl(QUrl(u)))
+            footer_layout.addWidget(button)
 
-    def _next_step_action (self ):
-        if self .current_step <len (self .tour_steps_widgets )-1 :
-            self .current_step +=1 
-            self .stacked_widget .setCurrentIndex (self .current_step )
-        else :
-            self .accept ()
-        self ._update_button_states ()
+        footer_layout.addStretch(1)
 
-    def _previous_step (self ):
-        if self .current_step >0 :
-            self .current_step -=1 
-            self .stacked_widget .setCurrentIndex (self .current_step )
-        self ._update_button_states ()
+        self.finish_button = QPushButton(self._tr("tour_dialog_finish_button", "Finish"))
+        self.finish_button.clicked.connect(self.accept)
+        footer_layout.addWidget(self.finish_button)
 
-    def _update_button_states (self ):
-        if self .current_step ==len (self .tour_steps_widgets )-1 :
-            self .next_button .setText (self ._tr ("tour_dialog_finish_button","Finish"))
-        else :
-            self .next_button .setText (self ._tr ("tour_dialog_next_button","Next"))
-        self .back_button .setEnabled (self .current_step >0 )
-
-    def _open_github_link (self ):
-        QDesktopServices .openUrl (QUrl ("https://github.com/Yuvi9587"))
-
-    def _open_instagram_link (self ):
-        QDesktopServices .openUrl (QUrl ("https://www.instagram.com/uvi.arts/"))
-
-    def _open_Discord_link (self ):
-        QDesktopServices .openUrl (QUrl ("https://discord.gg/BqP64XTdJN"))
+        main_layout.addLayout(footer_layout)

src/ui/dialogs/KeepDuplicatesDialog.py

@@ -0,0 +1,107 @@
+from PyQt5.QtWidgets import (
+    QDialog, QVBoxLayout, QGroupBox, QRadioButton,
+    QPushButton, QHBoxLayout, QButtonGroup, QLabel, QLineEdit
+)
+from PyQt5.QtGui import QIntValidator
+from ...i18n.translator import get_translation
+from ...config.constants import DUPLICATE_HANDLING_HASH, DUPLICATE_HANDLING_KEEP_ALL
+
+class KeepDuplicatesDialog(QDialog):
+    """A dialog to choose the duplicate handling method, with a limit option."""
+
+    def __init__(self, current_mode, current_limit, parent=None):
+        super().__init__(parent)
+        self.parent_app = parent
+        self.selected_mode = current_mode
+        self.limit = current_limit
+
+        self._init_ui()
+        self._retranslate_ui()
+
+        if self.parent_app and hasattr(self.parent_app, '_apply_theme_to_widget'):
+            self.parent_app._apply_theme_to_widget(self)
+        if current_mode == DUPLICATE_HANDLING_KEEP_ALL:
+            self.radio_keep_everything.setChecked(True)
+            self.limit_input.setText(str(current_limit) if current_limit > 0 else "")
+        else:
+            self.radio_skip_by_hash.setChecked(True)
+            self.limit_input.setEnabled(False)
+
+    def _init_ui(self):
+        """Initializes the UI components."""
+        main_layout = QVBoxLayout(self)
+        info_label = QLabel()
+        info_label.setWordWrap(True)
+        main_layout.addWidget(info_label)
+
+        options_group = QGroupBox()
+        options_layout = QVBoxLayout(options_group)
+        self.button_group = QButtonGroup(self)
+        self.radio_skip_by_hash = QRadioButton()
+        self.button_group.addButton(self.radio_skip_by_hash)
+        options_layout.addWidget(self.radio_skip_by_hash)
+        keep_everything_layout = QHBoxLayout()
+        self.radio_keep_everything = QRadioButton()
+        self.button_group.addButton(self.radio_keep_everything)
+        keep_everything_layout.addWidget(self.radio_keep_everything)
+        keep_everything_layout.addStretch(1)
+
+        self.limit_label = QLabel()
+        self.limit_input = QLineEdit()
+        self.limit_input.setValidator(QIntValidator(0, 99))
+        self.limit_input.setFixedWidth(50)
+        keep_everything_layout.addWidget(self.limit_label)
+        keep_everything_layout.addWidget(self.limit_input)
+        options_layout.addLayout(keep_everything_layout)
+
+        main_layout.addWidget(options_group)
+        button_layout = QHBoxLayout()
+        self.ok_button = QPushButton()
+        self.cancel_button = QPushButton()
+        button_layout.addStretch(1)
+        button_layout.addWidget(self.ok_button)
+        button_layout.addWidget(self.cancel_button)
+        main_layout.addLayout(button_layout)
+        self.ok_button.clicked.connect(self.accept)
+        self.cancel_button.clicked.connect(self.reject)
+        self.radio_keep_everything.toggled.connect(self.limit_input.setEnabled)
+
+    def _tr(self, key, default_text=""):
+        if self.parent_app and callable(get_translation):
+            return get_translation(self.parent_app.current_selected_language, key, default_text)
+        return default_text
+
+    def _retranslate_ui(self):
+        """Sets the text for UI elements."""
+        self.setWindowTitle(self._tr("duplicates_dialog_title", "Duplicate Handling Options"))
+        self.findChild(QLabel).setText(self._tr("duplicates_dialog_info",
+            "Choose how to handle files that have identical content to already downloaded files."))
+        self.findChild(QGroupBox).setTitle(self._tr("duplicates_dialog_group_title", "Mode"))
+
+        self.radio_skip_by_hash.setText(self._tr("duplicates_dialog_skip_hash", "Skip by Hash (Recommended)"))
+        self.radio_keep_everything.setText(self._tr("duplicates_dialog_keep_all", "Keep Everything"))
+
+        self.limit_label.setText(self._tr("duplicates_limit_label", "Limit:"))
+        self.limit_input.setPlaceholderText(self._tr("duplicates_limit_placeholder", "0=all"))
+        self.limit_input.setToolTip(self._tr("duplicates_limit_tooltip",
+            "Set a limit for identical files to keep. 0 means no limit."))
+
+        self.ok_button.setText(self._tr("ok_button", "OK"))
+        self.cancel_button.setText(self._tr("cancel_button_text_simple", "Cancel"))
+
+    def accept(self):
+        """Sets the selected mode and limit when OK is clicked."""
+        if self.radio_keep_everything.isChecked():
+            self.selected_mode = DUPLICATE_HANDLING_KEEP_ALL
+            try:
+                self.limit = int(self.limit_input.text()) if self.limit_input.text() else 0
+            except ValueError:
+                self.limit = 0
+        else:
+            self.selected_mode = DUPLICATE_HANDLING_HASH
+            self.limit = 0
+        super().accept()
+
+    def get_selected_options(self):
+        """Returns the chosen mode and limit as a dictionary."""
+        return {"mode": self.selected_mode, "limit": self.limit}

src/ui/dialogs/KnownNamesFilterDialog.py

@@ -8,13 +8,12 @@ from PyQt5.QtWidgets import (
 # --- Local Application Imports ---
 from ...i18n.translator import get_translation
 from ..main_window import get_app_icon_object
-
+from ...utils.resolution import get_dark_theme
 
 class KnownNamesFilterDialog(QDialog):
     """
     A dialog to select names from the Known.txt list to add to the main
     character filter input field. This provides a convenient way for users
-
     to reuse their saved names and groups for filtering downloads.
     """
 
@@ -38,13 +37,16 @@ class KnownNamesFilterDialog(QDialog):
         if app_icon and not app_icon.isNull():
             self.setWindowIcon(app_icon)
 
-        # Set window size dynamically
-        screen_geometry = QApplication.primaryScreen().availableGeometry()
+        # --- START OF FIX ---
+        # Get the user-defined scale factor from the parent application
+        # instead of calculating an independent one.
+        scale_factor = getattr(self.parent_app, 'scale_factor', 1.0)
+
+        # Define base size and apply the correct scale factor
         base_width, base_height = 460, 450
-        scale_factor_h = screen_geometry.height() / 1080.0
-        effective_scale_factor = max(0.75, min(scale_factor_h, 1.5))
-        self.setMinimumSize(int(base_width * effective_scale_factor), int(base_height * effective_scale_factor))
-        self.resize(int(base_width * effective_scale_factor * 1.1), int(base_height * effective_scale_factor * 1.1))
+        self.setMinimumSize(int(base_width * scale_factor), int(base_height * scale_factor))
+        self.resize(int(base_width * scale_factor * 1.1), int(base_height * scale_factor * 1.1))
+        # --- END OF FIX ---
 
         # --- Initialize UI and Apply Theming ---
         self._init_ui()
@@ -102,8 +104,14 @@ class KnownNamesFilterDialog(QDialog):
 
     def _apply_theme(self):
         """Applies the current theme from the parent application."""
-        if self.parent_app and hasattr(self.parent_app, 'get_dark_theme') and self.parent_app.current_theme == "dark":
-            self.setStyleSheet(self.parent_app.get_dark_theme())
+        if self.parent_app and self.parent_app.current_theme == "dark":
+            # Get the scale factor from the parent app
+            scale = getattr(self.parent_app, 'scale_factor', 1)
+            # Call the imported function with the correct scale
+            self.setStyleSheet(get_dark_theme(scale))
+        else:
+            # Explicitly set a blank stylesheet for light mode
+            self.setStyleSheet("")
 
     def _populate_list_widget(self):
         """Populates the list widget with the known names."""

src/ui/dialogs/MoreOptionsDialog.py

@@ -0,0 +1,96 @@
+from PyQt5.QtWidgets import (
+    QDialog, QVBoxLayout, QRadioButton, QDialogButtonBox, QButtonGroup, QLabel, QComboBox, QHBoxLayout, QCheckBox
+)
+from PyQt5.QtCore import Qt
+from ...utils.resolution import get_dark_theme
+
+class MoreOptionsDialog(QDialog):
+    """
+    A dialog for selecting a scope, export format, and single PDF option.
+    """
+    SCOPE_CONTENT = "content"
+    SCOPE_COMMENTS = "comments"
+
+    def __init__(self, parent=None, current_scope=None, current_format=None, single_pdf_checked=False):
+        super().__init__(parent)
+        self.parent_app = parent
+        self.setWindowTitle("More Options")
+        self.setMinimumWidth(350)
+
+        # ... (Layout and other widgets remain the same) ...
+
+        layout = QVBoxLayout(self)
+        self.description_label = QLabel("Please choose the scope for the action:")
+        layout.addWidget(self.description_label)
+        self.radio_button_group = QButtonGroup(self)
+        self.radio_content = QRadioButton("Description/Content")
+        self.radio_comments = QRadioButton("Comments")
+        self.radio_button_group.addButton(self.radio_content)
+        self.radio_button_group.addButton(self.radio_comments)
+        layout.addWidget(self.radio_content)
+        layout.addWidget(self.radio_comments)
+
+        if current_scope == self.SCOPE_COMMENTS:
+            self.radio_comments.setChecked(True)
+        else:
+            self.radio_content.setChecked(True)
+
+        export_layout = QHBoxLayout()
+        export_label = QLabel("Export as:")
+        self.format_combo = QComboBox()
+        self.format_combo.addItems(["PDF", "DOCX", "TXT"])
+
+        if current_format and current_format.upper() in ["PDF", "DOCX", "TXT"]:
+            self.format_combo.setCurrentText(current_format.upper())
+        else:
+            self.format_combo.setCurrentText("PDF")
+
+        export_layout.addWidget(export_label)
+        export_layout.addWidget(self.format_combo)
+        export_layout.addStretch()
+        layout.addLayout(export_layout)
+
+        # --- UPDATED: Single PDF Checkbox ---
+        self.single_pdf_checkbox = QCheckBox("Single PDF")
+        self.single_pdf_checkbox.setToolTip("If checked, all text from matching posts will be compiled into one single PDF file.")
+        self.single_pdf_checkbox.setChecked(single_pdf_checked)
+        layout.addWidget(self.single_pdf_checkbox)
+
+        self.format_combo.currentTextChanged.connect(self.update_single_pdf_checkbox_state)
+        self.update_single_pdf_checkbox_state(self.format_combo.currentText())
+
+        self.button_box = QDialogButtonBox(QDialogButtonBox.Ok | QDialogButtonBox.Cancel)
+        self.button_box.accepted.connect(self.accept)
+        self.button_box.rejected.connect(self.reject)
+        layout.addWidget(self.button_box)
+        self.setLayout(layout)
+        self._apply_theme()
+    def update_single_pdf_checkbox_state(self, text):
+        """Enable the Single PDF checkbox only if the format is PDF."""
+        is_pdf = (text.upper() == "PDF")
+        self.single_pdf_checkbox.setEnabled(is_pdf)
+        if not is_pdf:
+            self.single_pdf_checkbox.setChecked(False)
+
+    def get_selected_scope(self):
+        if self.radio_comments.isChecked():
+            return self.SCOPE_COMMENTS
+        return self.SCOPE_CONTENT
+
+    def get_selected_format(self):
+        return self.format_combo.currentText().lower()
+
+    def get_single_pdf_state(self):
+        """Returns the state of the Single PDF checkbox."""
+        return self.single_pdf_checkbox.isChecked() and self.single_pdf_checkbox.isEnabled()
+
+    def _apply_theme(self):
+        """Applies the current theme from the parent application."""
+        if self.parent_app and self.parent_app.current_theme == "dark":
+            # Get the scale factor from the parent app
+            scale = getattr(self.parent_app, 'scale_factor', 1)
+            # Call the imported function with the correct scale
+            self.setStyleSheet(get_dark_theme(scale))
+        else:
+            # Explicitly set a blank stylesheet for light mode
+            self.setStyleSheet("")

src/ui/dialogs/MultipartScopeDialog.py

@@ -0,0 +1,118 @@
+# multipart_scope_dialog.py
+from PyQt5.QtWidgets import (
+    QDialog, QVBoxLayout, QGroupBox, QRadioButton, QDialogButtonBox, QButtonGroup,
+    QLabel, QLineEdit, QHBoxLayout, QFrame
+)
+from PyQt5.QtGui import QIntValidator
+from PyQt5.QtCore import Qt
+
+# It's good practice to get this constant from the source
+# but for this example, we will define it here.
+MAX_PARTS = 16 
+
+class MultipartScopeDialog(QDialog):
+    """
+    A dialog to let the user select the scope, number of parts, and minimum size for multipart downloads.
+    """
+    SCOPE_VIDEOS = 'videos'
+    SCOPE_ARCHIVES = 'archives'
+    SCOPE_BOTH = 'both'
+
+    def __init__(self, current_scope='both', current_parts=4, current_min_size_mb=100, parent=None):
+        super().__init__(parent)
+        self.setWindowTitle("Multipart Download Options")
+        self.setWindowFlags(self.windowFlags() & ~Qt.WindowContextHelpButtonHint)
+        self.setMinimumWidth(350)
+
+        # Main Layout
+        layout = QVBoxLayout(self)
+
+        # --- Options Group for Scope ---
+        self.options_group_box = QGroupBox("Apply multipart downloads to:")
+        options_layout = QVBoxLayout()
+        # ... (Radio buttons and button group code remains unchanged) ...
+        self.radio_videos = QRadioButton("Videos Only")
+        self.radio_archives = QRadioButton("Archives Only (.zip, .rar, etc.)")
+        self.radio_both = QRadioButton("Both Videos and Archives")
+
+        if current_scope == self.SCOPE_VIDEOS:
+            self.radio_videos.setChecked(True)
+        elif current_scope == self.SCOPE_ARCHIVES:
+            self.radio_archives.setChecked(True)
+        else:
+            self.radio_both.setChecked(True)
+
+        self.button_group = QButtonGroup(self)
+        self.button_group.addButton(self.radio_videos)
+        self.button_group.addButton(self.radio_archives)
+        self.button_group.addButton(self.radio_both)
+
+        options_layout.addWidget(self.radio_videos)
+        options_layout.addWidget(self.radio_archives)
+        options_layout.addWidget(self.radio_both)
+        self.options_group_box.setLayout(options_layout)
+        layout.addWidget(self.options_group_box)
+
+        # --- START: MODIFIED Download Settings Group ---
+        self.settings_group_box = QGroupBox("Download settings:")
+        settings_layout = QVBoxLayout()
+
+        # Layout for Parts count
+        parts_layout = QHBoxLayout()
+        self.parts_label = QLabel("Number of download parts per file:")
+        self.parts_input = QLineEdit(str(current_parts))
+        self.parts_input.setValidator(QIntValidator(2, MAX_PARTS, self))
+        self.parts_input.setFixedWidth(40)
+        self.parts_input.setToolTip(f"Set the number of concurrent connections per file (2-{MAX_PARTS}).")
+        parts_layout.addWidget(self.parts_label)
+        parts_layout.addStretch()
+        parts_layout.addWidget(self.parts_input)
+        settings_layout.addLayout(parts_layout)
+
+        # Layout for Minimum Size
+        size_layout = QHBoxLayout()
+        self.size_label = QLabel("Minimum file size for multipart (MB):")
+        self.size_input = QLineEdit(str(current_min_size_mb))
+        self.size_input.setValidator(QIntValidator(10, 10000, self)) # Min 10MB, Max ~10GB
+        self.size_input.setFixedWidth(40)
+        self.size_input.setToolTip("Files smaller than this will use a normal, single-part download.")
+        size_layout.addWidget(self.size_label)
+        size_layout.addStretch()
+        size_layout.addWidget(self.size_input)
+        settings_layout.addLayout(size_layout)
+
+        self.settings_group_box.setLayout(settings_layout)
+        layout.addWidget(self.settings_group_box)
+        # --- END: MODIFIED Download Settings Group ---
+
+        # OK and Cancel Buttons
+        self.button_box = QDialogButtonBox(QDialogButtonBox.Ok | QDialogButtonBox.Cancel)
+        self.button_box.accepted.connect(self.accept)
+        self.button_box.rejected.connect(self.reject)
+        layout.addWidget(self.button_box)
+
+        self.setLayout(layout)
+
+    def get_selected_scope(self):
+        # ... (This method remains unchanged) ...
+        if self.radio_videos.isChecked():
+            return self.SCOPE_VIDEOS
+        if self.radio_archives.isChecked():
+            return self.SCOPE_ARCHIVES
+        return self.SCOPE_BOTH
+
+    def get_selected_parts(self):
+        # ... (This method remains unchanged) ...
+        try:
+            parts = int(self.parts_input.text())
+            return max(2, min(parts, MAX_PARTS))
+        except (ValueError, TypeError):
+            return 4
+
+    def get_selected_min_size(self):
+        """Returns the selected minimum size in MB as an integer."""
+        try:
+            size = int(self.size_input.text())
+            return max(10, min(size, 10000)) # Enforce valid range
+        except (ValueError, TypeError):
+            return 100 # Return a safe default

src/ui/dialogs/SinglePDF.py

@@ -0,0 +1,114 @@
+import os
+import re
+try:
+    from fpdf import FPDF
+    FPDF_AVAILABLE = True
+
+    # --- FIX: Move the class definition inside the try block ---
+    class PDF(FPDF):
+        """Custom PDF class to handle headers and footers."""
+        def header(self):
+            pass 
+
+        def footer(self):
+            self.set_y(-15)
+            if self.font_family:
+                 self.set_font(self.font_family, '', 8)
+            else:
+                 self.set_font('Arial', '', 8)
+            self.cell(0, 10, 'Page ' + str(self.page_no()), 0, 0, 'C')
+
+except ImportError:
+    FPDF_AVAILABLE = False
+    # If the import fails, FPDF and PDF will not be defined,
+    # but the program won't crash here.
+    FPDF = None 
+    PDF = None
+
+def strip_html_tags(text):
+    if not text:
+        return ""
+    clean = re.compile('<.*?>')
+    return re.sub(clean, '', text)
+
+def create_single_pdf_from_content(posts_data, output_filename, font_path, logger=print):
+    """
+    Creates a single, continuous PDF, correctly formatting both descriptions and comments.
+    """
+    if not FPDF_AVAILABLE:
+        logger("❌ PDF Creation failed: 'fpdf2' library is not installed. Please run: pip install fpdf2")
+        return False
+
+    if not posts_data:
+        logger("   No text content was collected to create a PDF.")
+        return False
+
+    pdf = PDF()
+    default_font_family = 'DejaVu'
+    
+    bold_font_path = ""
+    if font_path:
+        bold_font_path = font_path.replace("DejaVuSans.ttf", "DejaVuSans-Bold.ttf")
+
+    try:
+        if not os.path.exists(font_path): raise RuntimeError(f"Font file not found: {font_path}")
+        if not os.path.exists(bold_font_path): raise RuntimeError(f"Bold font file not found: {bold_font_path}")
+        
+        pdf.add_font('DejaVu', '', font_path, uni=True)
+        pdf.add_font('DejaVu', 'B', bold_font_path, uni=True)
+    except Exception as font_error:
+        logger(f"   ⚠️ Could not load DejaVu font: {font_error}. Falling back to Arial.")
+        default_font_family = 'Arial'
+    
+    pdf.add_page()
+
+    logger(f"   Starting continuous PDF creation with content from {len(posts_data)} posts...")
+
+    for i, post in enumerate(posts_data):
+        if i > 0:
+            if 'content' in post:
+                pdf.add_page()
+            elif 'comments' in post:
+                pdf.ln(10)
+                pdf.cell(0, 0, '', border='T')
+                pdf.ln(10)
+
+        pdf.set_font(default_font_family, 'B', 16)
+        pdf.multi_cell(w=0, h=10, txt=post.get('title', 'Untitled Post'), align='L')
+        pdf.ln(5)
+
+        if 'comments' in post and post['comments']:
+            comments_list = post['comments']
+            for comment_index, comment in enumerate(comments_list):
+                user = comment.get('commenter_name', 'Unknown User')
+                timestamp = comment.get('published', 'No Date')
+                body = strip_html_tags(comment.get('content', ''))
+
+                pdf.set_font(default_font_family, '', 10)
+                pdf.write(8, "Comment by: ")
+                if user is not None:
+                    pdf.set_font(default_font_family, 'B', 10)
+                    pdf.write(8, str(user))
+                
+                pdf.set_font(default_font_family, '', 10)
+                pdf.write(8, f" on {timestamp}")
+                pdf.ln(10)
+
+                pdf.set_font(default_font_family, '', 11)
+                pdf.multi_cell(w=0, h=7, txt=body)
+                
+                if comment_index < len(comments_list) - 1:
+                    pdf.ln(3)
+                    pdf.cell(w=0, h=0, border='T')
+                    pdf.ln(3)
+        elif 'content' in post:
+            pdf.set_font(default_font_family, '', 12)
+            pdf.multi_cell(w=0, h=7, txt=post.get('content', 'No Content'))
+    
+    try:
+        pdf.output(output_filename)
+        logger(f"✅ Successfully created single PDF: '{os.path.basename(output_filename)}'")
+        return True
+    except Exception as e:
+        logger(f"❌ A critical error occurred while saving the final PDF: {e}")
+        return False

src/ui/dialogs/SupportDialog.py

@@ -0,0 +1,155 @@
+# src/ui/dialogs/SupportDialog.py
+
+# --- Standard Library Imports ---
+import sys
+import os
+
+# --- PyQt5 Imports ---
+from PyQt5.QtWidgets import (
+    QDialog, QVBoxLayout, QLabel, QFrame, QDialogButtonBox, QGridLayout
+)
+from PyQt5.QtCore import Qt, QSize
+from PyQt5.QtGui import QFont, QPixmap
+
+# --- Local Application Imports ---
+from ...utils.resolution import get_dark_theme
+
+# --- Helper function for robust asset loading ---
+def get_asset_path(filename):
+    """
+    Gets the absolute path to a file in the assets folder,
+    handling both development and frozen (PyInstaller) environments.
+    """
+    if getattr(sys, 'frozen', False) and hasattr(sys, '_MEIPASS'):
+        # Running in a PyInstaller bundle
+        base_path = sys._MEIPASS
+    else:
+        # Running in a normal Python environment from src/ui/dialogs/
+        base_path = os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
+    
+    return os.path.join(base_path, 'assets', filename)
+
+
+class SupportDialog(QDialog):
+    """
+    A dialog to show support and donation options.
+    """
+    def __init__(self, parent=None):
+        super().__init__(parent)
+        self.parent_app = parent
+        self.setWindowTitle("❤️ Support the Developer")
+        self.setMinimumWidth(450)
+
+        self._init_ui()
+        self._apply_theme()
+
+    def _init_ui(self):
+        """Initializes all UI components and layouts for the dialog."""
+        # Main layout
+        main_layout = QVBoxLayout(self)
+        main_layout.setSpacing(15)
+
+        # Title Label
+        title_label = QLabel("Thank You for Your Support!")
+        font = title_label.font()
+        font.setPointSize(14)
+        font.setBold(True)
+        title_label.setFont(font)
+        title_label.setAlignment(Qt.AlignCenter)
+        main_layout.addWidget(title_label)
+
+        # Informational Text
+        info_label = QLabel(
+            "If you find this application useful, please consider supporting its development. "
+            "Your contribution helps cover costs and encourages future updates and features."
+        )
+        info_label.setWordWrap(True)
+        info_label.setAlignment(Qt.AlignCenter)
+        main_layout.addWidget(info_label)
+
+        # Separator
+        line = QFrame()
+        line.setFrameShape(QFrame.HLine)
+        line.setFrameShadow(QFrame.Sunken)
+        main_layout.addWidget(line)
+
+        # --- Donation Options Layout (using a grid for icons and text) ---
+        options_layout = QGridLayout()
+        options_layout.setSpacing(18)
+        options_layout.setColumnStretch(0, 1) # Add stretch to center the content horizontally
+        options_layout.setColumnStretch(3, 1)
+
+        link_font = self.font()
+        link_font.setPointSize(12)
+        link_font.setBold(True)
+        
+        scale = getattr(self.parent_app, 'scale_factor', 1.0)
+        icon_size = int(32 * scale)
+
+        # --- Ko-fi ---
+        kofi_icon_label = QLabel()
+        kofi_pixmap = QPixmap(get_asset_path("kofi.png"))
+        if not kofi_pixmap.isNull():
+            kofi_icon_label.setPixmap(kofi_pixmap.scaled(QSize(icon_size, icon_size), Qt.KeepAspectRatio, Qt.SmoothTransformation))
+        
+        kofi_text_label = QLabel(
+            '<a href="https://ko-fi.com/yuvi427183" style="color: #13C2C2; text-decoration: none;">'
+            '☕ Buy me a Ko-fi'
+            '</a>'
+        )
+        kofi_text_label.setOpenExternalLinks(True)
+        kofi_text_label.setFont(link_font)
+        
+        options_layout.addWidget(kofi_icon_label, 0, 1, Qt.AlignRight | Qt.AlignVCenter)
+        options_layout.addWidget(kofi_text_label, 0, 2, Qt.AlignLeft | Qt.AlignVCenter)
+
+        # --- GitHub Sponsors ---
+        github_icon_label = QLabel()
+        github_pixmap = QPixmap(get_asset_path("github_sponsors.png"))
+        if not github_pixmap.isNull():
+            github_icon_label.setPixmap(github_pixmap.scaled(QSize(icon_size, icon_size), Qt.KeepAspectRatio, Qt.SmoothTransformation))
+
+        github_text_label = QLabel(
+            '<a href="https://github.com/sponsors/Yuvi9587" style="color: #EA4AAA; text-decoration: none;">'
+            '💜 Sponsor on GitHub'
+            '</a>'
+        )
+        github_text_label.setOpenExternalLinks(True)
+        github_text_label.setFont(link_font)
+
+        options_layout.addWidget(github_icon_label, 1, 1, Qt.AlignRight | Qt.AlignVCenter)
+        options_layout.addWidget(github_text_label, 1, 2, Qt.AlignLeft | Qt.AlignVCenter)
+
+        # --- Buy Me a Coffee (New) ---
+        bmac_icon_label = QLabel()
+        bmac_pixmap = QPixmap(get_asset_path("bmac.png"))
+        if not bmac_pixmap.isNull():
+            bmac_icon_label.setPixmap(bmac_pixmap.scaled(QSize(icon_size, icon_size), Qt.KeepAspectRatio, Qt.SmoothTransformation))
+            
+        bmac_text_label = QLabel(
+            '<a href="https://buymeacoffee.com/yuvi9587" style="color: #FFDD00; text-decoration: none;">'
+            '🍺 Buy Me a Coffee'
+            '</a>'
+        )
+        bmac_text_label.setOpenExternalLinks(True)
+        bmac_text_label.setFont(link_font)
+        
+        options_layout.addWidget(bmac_icon_label, 2, 1, Qt.AlignRight | Qt.AlignVCenter)
+        options_layout.addWidget(bmac_text_label, 2, 2, Qt.AlignLeft | Qt.AlignVCenter)
+
+        main_layout.addLayout(options_layout)
+
+        # Close Button
+        self.button_box = QDialogButtonBox(QDialogButtonBox.Close)
+        self.button_box.rejected.connect(self.reject)
+        main_layout.addWidget(self.button_box)
+
+        self.setLayout(main_layout)
+
+    def _apply_theme(self):
+        """Applies the current theme from the parent application."""
+        if self.parent_app and hasattr(self.parent_app, 'current_theme') and self.parent_app.current_theme == "dark":
+            scale = getattr(self.parent_app, 'scale_factor', 1)
+            self.setStyleSheet(get_dark_theme(scale))
+        else:
+            self.setStyleSheet("")

src/ui/dialogs/TourDialog.py

@@ -1,17 +1,13 @@
-# --- Standard Library Imports ---
 import os
 import sys
-
-# --- PyQt5 Imports ---
 from PyQt5.QtCore import pyqtSignal, Qt, QSettings, QCoreApplication
 from PyQt5.QtWidgets import (
     QApplication, QDialog, QHBoxLayout, QLabel, QPushButton, QVBoxLayout,
     QStackedWidget, QScrollArea, QFrame, QWidget, QCheckBox
 )
-
-# --- Local Application Imports ---
 from ...i18n.translator import get_translation
 from ..main_window import get_app_icon_object
+from ...utils.resolution import get_dark_theme
 from ...config.constants import (
     CONFIG_ORGANIZATION_NAME
 )
@@ -57,8 +53,6 @@ class TourDialog(QDialog):
     """
     tour_finished_normally = pyqtSignal()
     tour_skipped = pyqtSignal()
-
-    # Constants for QSettings
     CONFIG_APP_NAME_TOUR = "ApplicationTour"
     TOUR_SHOWN_KEY = "neverShowTourAgainV19"
 
@@ -97,8 +91,6 @@ class TourDialog(QDialog):
 
         self.stacked_widget = QStackedWidget()
         main_layout.addWidget(self.stacked_widget, 1)
-
-        # Load content for each step
         steps_content = [
             ("tour_dialog_step1_title", "tour_dialog_step1_content"),
             ("tour_dialog_step2_title", "tour_dialog_step2_content"),
@@ -119,8 +111,6 @@ class TourDialog(QDialog):
             self.stacked_widget.addWidget(step_widget)
 
         self.setWindowTitle(self._tr("tour_dialog_title", "Welcome to Kemono Downloader!"))
-
-        # --- Bottom Controls ---
         bottom_controls_layout = QVBoxLayout()
         bottom_controls_layout.setContentsMargins(15, 10, 15, 15)
         bottom_controls_layout.setSpacing(12)
@@ -150,8 +140,9 @@ class TourDialog(QDialog):
 
     def _apply_theme(self):
         """Applies the current theme from the parent application."""
-        if self.parent_app and hasattr(self.parent_app, 'get_dark_theme') and self.parent_app.current_theme == "dark":
-            self.setStyleSheet(self.parent_app.get_dark_theme())
+        if self.parent_app and self.parent_app.current_theme == "dark":
+            scale = getattr(self.parent_app, 'scale_factor', 1)
+            self.setStyleSheet(get_dark_theme(scale))
         else:
             self.setStyleSheet("QDialog { background-color: #f0f0f0; }")
 

src/ui/dialogs/discord_pdf_generator.py

@@ -0,0 +1,146 @@
+import os
+import re
+import datetime
+try:
+    from fpdf import FPDF
+    FPDF_AVAILABLE = True
+
+    class PDF(FPDF):
+        """Custom PDF class for Discord chat logs."""
+        def __init__(self, server_name, channel_name, *args, **kwargs):
+            super().__init__(*args, **kwargs)
+            self.server_name = server_name
+            self.channel_name = channel_name
+            self.default_font_family = 'DejaVu' # Can be changed to Arial if font fails
+
+        def header(self):
+            if self.page_no() == 1:
+                return # No header on the title page
+            self.set_font(self.default_font_family, '', 8)
+            self.cell(0, 10, f'{self.server_name} - #{self.channel_name}', 0, 0, 'L')
+            self.cell(0, 10, 'Page ' + str(self.page_no()), 0, 0, 'R')
+            self.ln(10)
+
+        def footer(self):
+            pass # No footer needed, header has page number
+
+except ImportError:
+    FPDF_AVAILABLE = False
+    FPDF = None 
+    PDF = None
+
+def create_pdf_from_discord_messages(messages_data, server_name, channel_name, output_filename, font_path, logger=print):
+    """
+    Creates a single PDF from a list of Discord message objects, formatted as a chat log.
+    UPDATED to include clickable links for attachments and embeds.
+    """
+    if not FPDF_AVAILABLE:
+        logger("❌ PDF Creation failed: 'fpdf2' library is not installed.")
+        return False
+
+    if not messages_data:
+        logger("   No messages were found or fetched to create a PDF.")
+        return False
+
+    logger("   Sorting messages by date (oldest first)...")
+    messages_data.sort(key=lambda m: m.get('published', ''))
+
+    pdf = PDF(server_name, channel_name)
+    default_font_family = 'DejaVu'
+    
+    try:
+        bold_font_path = font_path.replace("DejaVuSans.ttf", "DejaVuSans-Bold.ttf")
+        if not os.path.exists(font_path) or not os.path.exists(bold_font_path):
+            raise RuntimeError("Font files not found")
+        
+        pdf.add_font('DejaVu', '', font_path, uni=True)
+        pdf.add_font('DejaVu', 'B', bold_font_path, uni=True)
+    except Exception as font_error:
+        logger(f"   ⚠️ Could not load DejaVu font: {font_error}. Falling back to Arial.")
+        default_font_family = 'Arial'
+        pdf.default_font_family = 'Arial'
+    
+    # --- Title Page ---
+    pdf.add_page()
+    pdf.set_font(default_font_family, 'B', 24)
+    pdf.cell(w=0, h=20, text="Discord Chat Log", align='C', new_x="LMARGIN", new_y="NEXT")
+    pdf.ln(10)
+    pdf.set_font(default_font_family, '', 16)
+    pdf.cell(w=0, h=10, text=f"Server: {server_name}", align='C', new_x="LMARGIN", new_y="NEXT")
+    pdf.cell(w=0, h=10, text=f"Channel: #{channel_name}", align='C', new_x="LMARGIN", new_y="NEXT")
+    pdf.ln(5)
+    pdf.set_font(default_font_family, '', 10)
+    pdf.cell(w=0, h=10, text=f"Generated on: {datetime.datetime.now().strftime('%Y-%m-%d %H:%M:%S')}", align='C', new_x="LMARGIN", new_y="NEXT")
+    pdf.cell(w=0, h=10, text=f"Total Messages: {len(messages_data)}", align='C', new_x="LMARGIN", new_y="NEXT")
+    
+    pdf.add_page()
+    
+    logger(f"   Starting PDF creation with {len(messages_data)} messages...")
+
+    for i, message in enumerate(messages_data):
+        author = message.get('author', {}).get('global_name') or message.get('author', {}).get('username', 'Unknown User')
+        timestamp_str = message.get('published', '')
+        content = message.get('content', '')
+        attachments = message.get('attachments', [])
+        embeds = message.get('embeds', [])
+
+        try:
+            # Handle timezone information correctly
+            if timestamp_str.endswith('Z'):
+                timestamp_str = timestamp_str[:-1] + '+00:00'
+            dt_obj = datetime.datetime.fromisoformat(timestamp_str)
+            formatted_timestamp = dt_obj.strftime('%Y-%m-%d %H:%M:%S')
+        except (ValueError, TypeError):
+            formatted_timestamp = timestamp_str
+
+        # Draw a separator line
+        if i > 0:
+            pdf.ln(2)
+            pdf.set_draw_color(200, 200, 200) # Light grey line
+            pdf.cell(0, 0, '', border='T')
+            pdf.ln(2)
+
+        # Message Header
+        pdf.set_font(default_font_family, 'B', 11)
+        pdf.write(5, f"{author} ")
+        pdf.set_font(default_font_family, '', 9)
+        pdf.set_text_color(128, 128, 128)
+        pdf.write(5, f"({formatted_timestamp})")
+        pdf.set_text_color(0, 0, 0)
+        pdf.ln(6)
+
+        # Message Content
+        if content:
+            pdf.set_font(default_font_family, '', 10)
+            pdf.multi_cell(w=0, h=5, text=content)
+        
+        # --- START: MODIFIED ATTACHMENT AND EMBED LOGIC ---
+        if attachments or embeds:
+            pdf.ln(1)
+            pdf.set_font(default_font_family, '', 9)
+            pdf.set_text_color(22, 119, 219) # A nice blue for links
+
+            for att in attachments:
+                file_name = att.get('name', 'untitled')
+                file_path = att.get('path', '')
+                # Construct the full, clickable URL for the attachment
+                full_url = f"https://kemono.cr/data{file_path}"
+                pdf.write(5, text=f"[Attachment: {file_name}]", link=full_url)
+                pdf.ln() # New line after each attachment
+
+            for embed in embeds:
+                embed_url = embed.get('url', 'no url')
+                # The embed URL is already a full URL
+                pdf.write(5, text=f"[Embed: {embed_url}]", link=embed_url)
+                pdf.ln() # New line after each embed
+
+            pdf.set_text_color(0, 0, 0) # Reset color to black
+        # --- END: MODIFIED ATTACHMENT AND EMBED LOGIC ---
+
+    try:
+        pdf.output(output_filename)
+        logger(f"✅ Successfully created Discord chat log PDF: '{os.path.basename(output_filename)}'")
+        return True
+    except Exception as e:
+        logger(f"❌ A critical error occurred while saving the final PDF: {e}")
+        return False

src/utils/file_utils.py

@@ -12,7 +12,7 @@ MAX_FILENAME_COMPONENT_LENGTH = 150
 
 # Sets of file extensions for quick type checking
 IMAGE_EXTENSIONS = {
-    '.jpg', '.jpeg', '.png', '.gif', '.bmp', '.tiff', '.tif', '.webp',
+    '.jpg', '.jpeg', '.jpe', '.png', '.gif', '.bmp', '.tiff', '.tif', '.webp',
     '.heic', '.heif', '.svg', '.ico', '.jfif', '.pjpeg', '.pjp', '.avif'
 }
 VIDEO_EXTENSIONS = {

src/utils/network_utils.py

@@ -141,12 +141,15 @@ def prepare_cookies_for_request(use_cookie_flag, cookie_text_input, selected_coo
 def extract_post_info(url_string):
     """
     Parses a URL string to extract the service, user ID, and post ID.
+    UPDATED to support Discord server/channel URLs.
 
     Args:
         url_string (str): The URL to parse.
 
     Returns:
-        tuple: A tuple containing (service, user_id, post_id). Any can be None.
+        tuple: A tuple containing (service, id1, id2). 
+               For posts: (service, user_id, post_id).
+               For Discord: ('discord', server_id, channel_id).
     """
     if not isinstance(url_string, str) or not url_string.strip():
         return None, None, None
@@ -155,7 +158,15 @@ def extract_post_info(url_string):
         parsed_url = urlparse(url_string.strip())
         path_parts = [part for part in parsed_url.path.strip('/').split('/') if part]
         
-        # Standard format: /<service>/user/<user_id>/post/<post_id>
+        # Check for new Discord URL format first
+        # e.g., /discord/server/891670433978531850/1252332668805189723
+        if len(path_parts) >= 3 and path_parts[0].lower() == 'discord' and path_parts[1].lower() == 'server':
+            service = 'discord'
+            server_id = path_parts[2]
+            channel_id = path_parts[3] if len(path_parts) >= 4 else None
+            return service, server_id, channel_id
+
+        # Standard creator/post format: /<service>/user/<user_id>/post/<post_id>
         if len(path_parts) >= 3 and path_parts[1].lower() == 'user':
             service = path_parts[0]
             user_id = path_parts[2]
@@ -174,7 +185,6 @@ def extract_post_info(url_string):
 
     return None, None, None
 
-
 def get_link_platform(url):
     """
     Identifies the platform of a given URL based on its domain.
@@ -196,10 +206,9 @@ def get_link_platform(url):
         if 'twitter.com' in domain or 'x.com' in domain: return 'twitter/x'
         if 'discord.gg' in domain or 'discord.com/invite' in domain: return 'discord invite'
         if 'pixiv.net' in domain: return 'pixiv'
-        if 'kemono.su' in domain or 'kemono.party' in domain: return 'kemono'
-        if 'coomer.su' in domain or 'coomer.party' in domain: return 'coomer'
+        if 'kemono.su' in domain or 'kemono.party' in domain or 'kemono.cr' in domain: return 'kemono'
+        if 'coomer.su' in domain or 'coomer.party' in domain or 'coomer.st' in domain: return 'coomer'
         
-        # Fallback to a generic name for other domains
         parts = domain.split('.')
         if len(parts) >= 2:
             return parts[-2]

src/utils/resolution.py

@@ -0,0 +1,591 @@
+# src/ui/utils/resolution.py
+
+# --- Standard Library Imports ---
+import os
+
+# --- PyQt5 Imports ---
+from PyQt5.QtWidgets import (
+    QSplitter, QScrollArea, QFrame, QWidget, QVBoxLayout, QHBoxLayout, QLabel,
+    QLineEdit, QPushButton, QStackedWidget, QButtonGroup, QRadioButton, QCheckBox,
+    QListWidget, QTextEdit, QApplication
+)
+from PyQt5.QtCore import Qt
+from PyQt5.QtGui import QIntValidator, QFont # <-- Import QFont
+
+# --- Local Application Imports ---
+# Assuming execution from project root
+from ..config.constants import *
+
+
+def setup_ui(main_app):
+    """
+    Initializes and scales the user interface for the DownloaderApp.
+    
+    Args:
+        main_app: The instance of the main DownloaderApp.
+    """
+    scale = float(main_app.settings.value(UI_SCALE_KEY, 1.0))
+    main_app.scale_factor = scale
+
+    default_font = QApplication.font()
+    base_font_size = 9 # Use a standard base size
+    default_font.setPointSize(int(base_font_size * scale))
+    main_app.setFont(default_font)
+
+    default_font = QApplication.font()
+    base_font_size = 9 # Use a standard base size
+    default_font.setPointSize(int(base_font_size * scale))
+    main_app.setFont(default_font)
+    # --- END: Improved Scaling Logic ---
+
+    main_app.main_splitter = QSplitter(Qt.Horizontal)
+    
+    # --- Use a scroll area for the left panel for consistency ---
+    left_scroll_area = QScrollArea()
+    left_scroll_area.setWidgetResizable(True)
+    left_scroll_area.setFrameShape(QFrame.NoFrame)
+
+    left_panel_widget = QWidget()
+    left_layout = QVBoxLayout(left_panel_widget)
+    left_scroll_area.setWidget(left_panel_widget)
+
+    right_panel_widget = QWidget()
+    right_layout = QVBoxLayout(right_panel_widget)
+    
+    left_layout.setContentsMargins(10, 10, 10, 10)
+    right_layout.setContentsMargins(10, 10, 10, 10)
+    apply_theme_to_app(main_app, main_app.current_theme, initial_load=True)
+
+    # --- URL and Page Range ---
+    main_app.url_input_widget = QWidget()
+    url_input_layout = QHBoxLayout(main_app.url_input_widget)
+    url_input_layout.setContentsMargins(0, 0, 0, 0)
+    main_app.url_label_widget = QLabel()
+    url_input_layout.addWidget(main_app.url_label_widget)
+    main_app.link_input = QLineEdit()
+    main_app.link_input.setPlaceholderText("e.g., https://kemono.su/patreon/user/12345 or .../post/98765")
+    main_app.link_input.textChanged.connect(main_app.update_custom_folder_visibility)
+    url_input_layout.addWidget(main_app.link_input, 1)
+    main_app.empty_popup_button = QPushButton("🎨")
+    special_font_size = int(9.5 * scale) 
+    main_app.empty_popup_button.setStyleSheet(f"""
+        padding: {4*scale}px {6*scale}px;
+        font-size: {special_font_size}pt;
+    """)
+    main_app.empty_popup_button.clicked.connect(main_app._show_empty_popup)
+    url_input_layout.addWidget(main_app.empty_popup_button)
+    main_app.page_range_label = QLabel(main_app._tr("page_range_label_text", "Page Range:"))
+    main_app.page_range_label.setStyleSheet("font-weight: bold; padding-left: 10px;")
+    url_input_layout.addWidget(main_app.page_range_label)
+    main_app.start_page_input = QLineEdit()
+    main_app.start_page_input.setPlaceholderText(main_app._tr("start_page_input_placeholder", "Start"))
+    main_app.start_page_input.setFixedWidth(int(50 * scale))
+    main_app.start_page_input.setValidator(QIntValidator(1, 99999))
+    url_input_layout.addWidget(main_app.start_page_input)
+    main_app.to_label = QLabel(main_app._tr("page_range_to_label_text", "to"))
+    url_input_layout.addWidget(main_app.to_label)
+    main_app.end_page_input = QLineEdit()
+    main_app.end_page_input.setPlaceholderText(main_app._tr("end_page_input_placeholder", "End"))
+    main_app.end_page_input.setFixedWidth(int(50 * scale))
+    main_app.end_page_input.setToolTip(main_app._tr("end_page_input_tooltip", "For creator URLs: Specify the ending page number..."))
+    main_app.end_page_input.setValidator(QIntValidator(1, 99999))
+    url_input_layout.addWidget(main_app.end_page_input)
+    main_app.url_placeholder_widget = QWidget()
+    placeholder_layout = QHBoxLayout(main_app.url_placeholder_widget)
+    placeholder_layout.setContentsMargins(0, 0, 0, 0)
+    main_app.fav_mode_active_label = QLabel(main_app._tr("fav_mode_active_label_text", "⭐ Favorite Mode is active..."))
+    main_app.fav_mode_active_label.setAlignment(Qt.AlignCenter)
+    placeholder_layout.addWidget(main_app.fav_mode_active_label)
+    main_app.url_or_placeholder_stack = QStackedWidget()
+    main_app.url_or_placeholder_stack.addWidget(main_app.url_input_widget)
+    main_app.url_or_placeholder_stack.addWidget(main_app.url_placeholder_widget)
+    left_layout.addWidget(main_app.url_or_placeholder_stack)
+
+    # --- Download Location ---
+    main_app.download_location_label_widget = QLabel()
+    left_layout.addWidget(main_app.download_location_label_widget)
+    dir_layout = QHBoxLayout()
+    main_app.dir_input = QLineEdit()
+    main_app.dir_input.setPlaceholderText("Select folder where downloads will be saved")
+    main_app.dir_button = QPushButton("Browse...")
+    main_app.dir_button.clicked.connect(main_app.browse_directory)
+    dir_layout.addWidget(main_app.dir_input, 1)
+    dir_layout.addWidget(main_app.dir_button)
+    left_layout.addLayout(dir_layout)
+
+    # --- Filters and Custom Folder Container ---
+    main_app.filters_and_custom_folder_container_widget = QWidget()
+    filters_and_custom_folder_layout = QHBoxLayout(main_app.filters_and_custom_folder_container_widget)
+    filters_and_custom_folder_layout.setContentsMargins(0, 5, 0, 0)
+    filters_and_custom_folder_layout.setSpacing(10)
+    main_app.character_filter_widget = QWidget()
+    character_filter_v_layout = QVBoxLayout(main_app.character_filter_widget)
+    character_filter_v_layout.setContentsMargins(0, 0, 0, 0)
+    character_filter_v_layout.setSpacing(2)
+    main_app.character_label = QLabel("🎯 Filter by Character(s) (comma-separated):")
+    character_filter_v_layout.addWidget(main_app.character_label)
+    char_input_and_button_layout = QHBoxLayout()
+    char_input_and_button_layout.setContentsMargins(0, 0, 0, 0)
+    char_input_and_button_layout.setSpacing(10)
+    main_app.character_input = QLineEdit()
+    main_app.character_input.setPlaceholderText("e.g., Tifa, Aerith, (Cloud, Zack)")
+    char_input_and_button_layout.addWidget(main_app.character_input, 3)
+    main_app.char_filter_scope_toggle_button = QPushButton()
+    main_app._update_char_filter_scope_button_text()
+    char_input_and_button_layout.addWidget(main_app.char_filter_scope_toggle_button, 1)
+    character_filter_v_layout.addLayout(char_input_and_button_layout)
+    
+    # --- Custom Folder Widget Definition ---
+    main_app.custom_folder_widget = QWidget()
+    custom_folder_v_layout = QVBoxLayout(main_app.custom_folder_widget)
+    custom_folder_v_layout.setContentsMargins(0, 0, 0, 0)
+    custom_folder_v_layout.setSpacing(2)
+    main_app.custom_folder_label = QLabel("🗄️ Custom Folder Name (Single Post Only):")
+    main_app.custom_folder_input = QLineEdit()
+    main_app.custom_folder_input.setPlaceholderText("Optional: Save this post to specific folder")
+    custom_folder_v_layout.addWidget(main_app.custom_folder_label)
+    custom_folder_v_layout.addWidget(main_app.custom_folder_input)
+    main_app.custom_folder_widget.setVisible(False)
+    
+    filters_and_custom_folder_layout.addWidget(main_app.character_filter_widget, 1)
+    filters_and_custom_folder_layout.addWidget(main_app.custom_folder_widget, 1)
+    left_layout.addWidget(main_app.filters_and_custom_folder_container_widget)
+
+    # --- Word Manipulation Container ---
+    word_manipulation_container_widget = QWidget()
+    word_manipulation_outer_layout = QHBoxLayout(word_manipulation_container_widget)
+    word_manipulation_outer_layout.setContentsMargins(0, 0, 0, 0)
+    word_manipulation_outer_layout.setSpacing(15)
+    skip_words_widget = QWidget()
+    skip_words_vertical_layout = QVBoxLayout(skip_words_widget)
+    skip_words_vertical_layout.setContentsMargins(0, 0, 0, 0)
+    skip_words_vertical_layout.setSpacing(2)
+    main_app.skip_words_label_widget = QLabel()
+    skip_words_vertical_layout.addWidget(main_app.skip_words_label_widget)
+    skip_input_and_button_layout = QHBoxLayout()
+    skip_input_and_button_layout.setContentsMargins(0, 0, 0, 0)
+    skip_input_and_button_layout.setSpacing(10)
+    main_app.skip_words_input = QLineEdit()
+    main_app.skip_words_input.setPlaceholderText("e.g., WM, WIP, sketch, preview")
+    skip_input_and_button_layout.addWidget(main_app.skip_words_input, 1)
+    main_app.skip_scope_toggle_button = QPushButton()
+    main_app._update_skip_scope_button_text()
+    skip_input_and_button_layout.addWidget(main_app.skip_scope_toggle_button, 0)
+    skip_words_vertical_layout.addLayout(skip_input_and_button_layout)
+    word_manipulation_outer_layout.addWidget(skip_words_widget, 7)
+    remove_words_widget = QWidget()
+    remove_words_vertical_layout = QVBoxLayout(remove_words_widget)
+    remove_words_vertical_layout.setContentsMargins(0, 0, 0, 0)
+    remove_words_vertical_layout.setSpacing(2)
+    main_app.remove_from_filename_label_widget = QLabel()
+    remove_words_vertical_layout.addWidget(main_app.remove_from_filename_label_widget)
+    main_app.remove_from_filename_input = QLineEdit()
+    main_app.remove_from_filename_input.setPlaceholderText("e.g., patreon, HD")
+    remove_words_vertical_layout.addWidget(main_app.remove_from_filename_input)
+    word_manipulation_outer_layout.addWidget(remove_words_widget, 3)
+    left_layout.addWidget(word_manipulation_container_widget)
+
+    # --- File Filter Layout ---
+    file_filter_layout = QVBoxLayout()
+    file_filter_layout.setContentsMargins(0, 10, 0, 0)
+    file_filter_layout.addWidget(QLabel("Filter Files:"))
+    radio_button_layout = QHBoxLayout()
+    radio_button_layout.setSpacing(10)
+    main_app.radio_group = QButtonGroup(main_app)
+    main_app.radio_all = QRadioButton("All")
+    main_app.radio_images = QRadioButton("Images/GIFs")
+    main_app.radio_videos = QRadioButton("Videos")
+    main_app.radio_only_archives = QRadioButton("📦 Only Archives")
+    main_app.radio_only_audio = QRadioButton("🎧 Only Audio")
+    main_app.radio_only_links = QRadioButton("🔗 Only Links")
+    main_app.radio_more = QRadioButton("More") 
+
+    main_app.radio_all.setChecked(True)
+    for btn in [main_app.radio_all, main_app.radio_images, main_app.radio_videos, main_app.radio_only_archives, main_app.radio_only_audio, main_app.radio_only_links, main_app.radio_more]:
+        main_app.radio_group.addButton(btn)
+        radio_button_layout.addWidget(btn)
+    main_app.favorite_mode_checkbox = QCheckBox()
+    main_app.favorite_mode_checkbox.setChecked(False)
+    radio_button_layout.addWidget(main_app.favorite_mode_checkbox)
+    radio_button_layout.addStretch(1)
+    file_filter_layout.addLayout(radio_button_layout)
+    left_layout.addLayout(file_filter_layout)
+
+    # --- Checkboxes Group ---
+    checkboxes_group_layout = QVBoxLayout()
+    checkboxes_group_layout.setSpacing(10)
+    row1_layout = QHBoxLayout()
+    row1_layout.setSpacing(10)
+    main_app.skip_zip_checkbox = QCheckBox("Skip archives")
+    main_app.skip_zip_checkbox.setToolTip("Skip Common Archives (Eg.. Zip, Rar, 7z)")
+    main_app.skip_zip_checkbox.setChecked(True)
+    row1_layout.addWidget(main_app.skip_zip_checkbox)
+    main_app.download_thumbnails_checkbox = QCheckBox("Download Thumbnails Only")
+    row1_layout.addWidget(main_app.download_thumbnails_checkbox)
+    main_app.scan_content_images_checkbox = QCheckBox("Scan Content for Images")
+    main_app.scan_content_images_checkbox.setChecked(main_app.scan_content_images_setting)
+    row1_layout.addWidget(main_app.scan_content_images_checkbox)
+    main_app.compress_images_checkbox = QCheckBox("Compress to WebP")
+    main_app.compress_images_checkbox.setToolTip("Compress images > 1.5MB to WebP format (requires Pillow).")
+    row1_layout.addWidget(main_app.compress_images_checkbox)
+    main_app.keep_duplicates_checkbox = QCheckBox("Keep Duplicates")
+    main_app.keep_duplicates_checkbox.setToolTip("If checked, downloads all files from a post even if they have the same name.")
+    row1_layout.addWidget(main_app.keep_duplicates_checkbox)
+    row1_layout.addStretch(1)
+    checkboxes_group_layout.addLayout(row1_layout)
+
+    # --- Advanced Settings ---
+    advanced_settings_label = QLabel("⚙️ Advanced Settings:")
+    checkboxes_group_layout.addWidget(advanced_settings_label)
+    advanced_row1_layout = QHBoxLayout()
+    advanced_row1_layout.setSpacing(10)
+
+    # --- REORDERED CHECKBOXES ---
+    main_app.use_subfolder_per_post_checkbox = QCheckBox("Subfolder per Post")
+    main_app.use_subfolder_per_post_checkbox.toggled.connect(main_app.update_ui_for_subfolders)
+    main_app.use_subfolder_per_post_checkbox.setChecked(True)    
+    advanced_row1_layout.addWidget(main_app.use_subfolder_per_post_checkbox)
+
+    main_app.date_prefix_checkbox = QCheckBox("Date Prefix")
+    main_app.date_prefix_checkbox.setToolTip("When 'Subfolder per Post' is active, prefix the folder name with the post's upload date.")
+    advanced_row1_layout.addWidget(main_app.date_prefix_checkbox)
+    
+    main_app.use_subfolders_checkbox = QCheckBox("Separate Folders by Known.txt")
+    main_app.use_subfolders_checkbox.setChecked(False)
+    main_app.use_subfolders_checkbox.toggled.connect(main_app.update_ui_for_subfolders)
+    advanced_row1_layout.addWidget(main_app.use_subfolders_checkbox)
+    # --- END REORDER ---
+
+    main_app.use_cookie_checkbox = QCheckBox("Use Cookie")
+    main_app.use_cookie_checkbox.setChecked(main_app.use_cookie_setting)
+    main_app.cookie_text_input = QLineEdit()
+    main_app.cookie_text_input.setPlaceholderText("if no Select cookies.txt)")
+    main_app.cookie_text_input.setText(main_app.cookie_text_setting)
+    advanced_row1_layout.addWidget(main_app.use_cookie_checkbox)
+    advanced_row1_layout.addWidget(main_app.cookie_text_input, 2)
+    main_app.cookie_browse_button = QPushButton("Browse...")
+    main_app.cookie_browse_button.setFixedWidth(int(80 * scale))
+    advanced_row1_layout.addWidget(main_app.cookie_browse_button)
+    advanced_row1_layout.addStretch(1)
+    checkboxes_group_layout.addLayout(advanced_row1_layout)
+    advanced_row2_layout = QHBoxLayout()
+    advanced_row2_layout.setSpacing(10)
+    multithreading_layout = QHBoxLayout()
+    multithreading_layout.setContentsMargins(0, 0, 0, 0)
+    main_app.use_multithreading_checkbox = QCheckBox("Use Multithreading")
+    main_app.use_multithreading_checkbox.setChecked(True)
+    multithreading_layout.addWidget(main_app.use_multithreading_checkbox)
+    main_app.thread_count_label = QLabel("Threads:")
+    multithreading_layout.addWidget(main_app.thread_count_label)
+    main_app.thread_count_input = QLineEdit("4")
+    main_app.thread_count_input.setFixedWidth(int(40 * scale))
+    main_app.thread_count_input.setValidator(QIntValidator(1, MAX_THREADS))
+    multithreading_layout.addWidget(main_app.thread_count_input)
+    advanced_row2_layout.addLayout(multithreading_layout)
+    main_app.external_links_checkbox = QCheckBox("Show External Links in Log")
+    advanced_row2_layout.addWidget(main_app.external_links_checkbox)
+    main_app.manga_mode_checkbox = QCheckBox("Manga/Comic Mode")
+    advanced_row2_layout.addWidget(main_app.manga_mode_checkbox)
+    advanced_row2_layout.addStretch(1)
+    checkboxes_group_layout.addLayout(advanced_row2_layout)
+    left_layout.addLayout(checkboxes_group_layout)
+
+    # --- Action Buttons ---
+    main_app.standard_action_buttons_widget = QWidget()
+    btn_layout = QHBoxLayout(main_app.standard_action_buttons_widget)
+    btn_layout.setContentsMargins(0, 10, 0, 0)
+    btn_layout.setSpacing(10)
+    main_app.download_btn = QPushButton("⬇️ Start Download")
+    font = main_app.download_btn.font()
+    font.setBold(True)
+    main_app.download_btn.setFont(font)
+    main_app.download_btn.clicked.connect(main_app.start_download)
+    main_app.pause_btn = QPushButton("⏸️ Pause Download")
+    main_app.pause_btn.setEnabled(False)
+    main_app.pause_btn.clicked.connect(main_app._handle_pause_resume_action)
+    main_app.cancel_btn = QPushButton("❌ Cancel & Reset UI")
+    main_app.cancel_btn.setEnabled(False)
+    main_app.cancel_btn.clicked.connect(main_app.cancel_download_button_action)
+    main_app.error_btn = QPushButton("Error")
+    main_app.error_btn.setToolTip("View files skipped due to errors and optionally retry them.")
+    main_app.error_btn.setEnabled(True)
+    btn_layout.addWidget(main_app.download_btn)
+    btn_layout.addWidget(main_app.pause_btn)
+    btn_layout.addWidget(main_app.cancel_btn)
+    btn_layout.addWidget(main_app.error_btn)
+    main_app.favorite_action_buttons_widget = QWidget()
+    favorite_buttons_layout = QHBoxLayout(main_app.favorite_action_buttons_widget)
+    main_app.favorite_mode_artists_button = QPushButton("🖼️ Favorite Artists")
+    main_app.favorite_mode_posts_button = QPushButton("📄 Favorite Posts")
+    main_app.favorite_scope_toggle_button = QPushButton()
+    favorite_buttons_layout.addWidget(main_app.favorite_mode_artists_button)
+    favorite_buttons_layout.addWidget(main_app.favorite_mode_posts_button)
+    favorite_buttons_layout.addWidget(main_app.favorite_scope_toggle_button)
+    main_app.bottom_action_buttons_stack = QStackedWidget()
+    main_app.bottom_action_buttons_stack.addWidget(main_app.standard_action_buttons_widget)
+    main_app.bottom_action_buttons_stack.addWidget(main_app.favorite_action_buttons_widget)
+    left_layout.addWidget(main_app.bottom_action_buttons_stack)
+    left_layout.addSpacing(10)
+
+    # --- Known Names Layout ---
+    known_chars_label_layout = QHBoxLayout()
+    known_chars_label_layout.setSpacing(10)
+    main_app.known_chars_label = QLabel("🎭 Known Shows/Characters (for Folder Names):")
+    known_chars_label_layout.addWidget(main_app.known_chars_label)
+    main_app.open_known_txt_button = QPushButton("Open Known.txt")
+    main_app.open_known_txt_button.setFixedWidth(int(120 * scale))
+    known_chars_label_layout.addWidget(main_app.open_known_txt_button)
+    main_app.character_search_input = QLineEdit()
+    main_app.character_search_input.setPlaceholderText("Search characters...")
+    known_chars_label_layout.addWidget(main_app.character_search_input, 1)
+    left_layout.addLayout(known_chars_label_layout)
+    main_app.character_list = QListWidget()
+    main_app.character_list.setSelectionMode(QListWidget.ExtendedSelection)
+    left_layout.addWidget(main_app.character_list, 1)
+    char_manage_layout = QHBoxLayout()
+    char_manage_layout.setSpacing(10)
+    main_app.new_char_input = QLineEdit()
+    main_app.new_char_input.setPlaceholderText("Add new show/character name")
+    main_app.add_char_button = QPushButton("➕ Add")
+    main_app.add_to_filter_button = QPushButton("⤵️ Add to Filter")
+    main_app.add_to_filter_button.setToolTip("Select names... to add to the 'Filter by Character(s)' field.")
+    main_app.delete_char_button = QPushButton("🗑️ Delete Selected")
+    main_app.delete_char_button.setToolTip("Delete the selected name(s)...")
+    main_app.add_char_button.clicked.connect(main_app._handle_ui_add_new_character)
+    main_app.new_char_input.returnPressed.connect(main_app.add_char_button.click)
+    main_app.delete_char_button.clicked.connect(main_app.delete_selected_character)
+    char_manage_layout.addWidget(main_app.new_char_input, 2)
+    char_manage_layout.addWidget(main_app.add_char_button, 0)
+    main_app.known_names_help_button = QPushButton("?")
+    main_app.known_names_help_button.setFixedWidth(int(45 * scale))
+    main_app.known_names_help_button.clicked.connect(main_app._show_feature_guide)
+    main_app.history_button = QPushButton("📜")
+    main_app.history_button.setFixedWidth(int(45 * scale))
+    main_app.history_button.setToolTip(main_app._tr("history_button_tooltip_text", "View download history"))
+    main_app.future_settings_button = QPushButton("⚙️")
+    main_app.future_settings_button.setFixedWidth(int(45 * scale))
+    main_app.future_settings_button.clicked.connect(main_app._show_future_settings_dialog)
+    main_app.support_button = QPushButton("❤️ Support")
+    main_app.support_button.setFixedWidth(int(100 * scale))
+    main_app.support_button.setToolTip("Support the application developer.")
+    char_manage_layout.addWidget(main_app.add_to_filter_button, 1)
+    char_manage_layout.addWidget(main_app.delete_char_button, 1)
+    char_manage_layout.addWidget(main_app.known_names_help_button, 0)
+    char_manage_layout.addWidget(main_app.history_button, 0)
+    char_manage_layout.addWidget(main_app.future_settings_button, 0)
+    char_manage_layout.addWidget(main_app.support_button, 0)
+    left_layout.addLayout(char_manage_layout)
+    left_layout.addStretch(0)
+
+    # --- Right Panel (Logs) ---
+    right_panel_widget.setLayout(right_layout)
+    log_title_layout = QHBoxLayout()
+    main_app.progress_log_label = QLabel("📜 Progress Log:")
+    log_title_layout.addWidget(main_app.progress_log_label)
+    log_title_layout.addStretch(1)
+    main_app.link_search_input = QLineEdit()
+    main_app.link_search_input.setPlaceholderText("Search Links...")
+    main_app.link_search_input.setVisible(False)
+    log_title_layout.addWidget(main_app.link_search_input)
+    main_app.link_search_button = QPushButton("<EFBFBD>")
+    main_app.link_search_button.setVisible(False)
+    main_app.link_search_button.setFixedWidth(int(30 * scale))
+    log_title_layout.addWidget(main_app.link_search_button)
+    main_app.discord_scope_toggle_button = QPushButton("Scope: Files")
+    main_app.discord_scope_toggle_button.setVisible(False) # Hidden by default
+    main_app.discord_scope_toggle_button.setFixedWidth(int(140 * scale))
+    log_title_layout.addWidget(main_app.discord_scope_toggle_button)
+    main_app.manga_rename_toggle_button = QPushButton()
+    main_app.manga_rename_toggle_button.setVisible(False)
+    main_app.manga_rename_toggle_button.setFixedWidth(int(140 * scale))
+    main_app._update_manga_filename_style_button_text()
+    log_title_layout.addWidget(main_app.manga_rename_toggle_button)
+    main_app.manga_date_prefix_input = QLineEdit()
+    main_app.manga_date_prefix_input.setPlaceholderText("Prefix for Manga Filenames")
+    main_app.manga_date_prefix_input.setVisible(False)
+    log_title_layout.addWidget(main_app.manga_date_prefix_input)
+    main_app.multipart_toggle_button = QPushButton()
+    main_app.multipart_toggle_button.setToolTip("Toggle between Multi-part and Single-stream downloads for large files.")
+    main_app.multipart_toggle_button.setFixedWidth(int(130 * scale))
+    main_app._update_multipart_toggle_button_text()
+    log_title_layout.addWidget(main_app.multipart_toggle_button)
+    main_app.EYE_ICON = "\U0001F441"
+    main_app.CLOSED_EYE_ICON = "\U0001F648"
+    main_app.log_verbosity_toggle_button = QPushButton(main_app.EYE_ICON)
+    main_app.log_verbosity_toggle_button.setFixedWidth(int(45 * scale))
+    main_app.log_verbosity_toggle_button.setStyleSheet(f"font-size: {11 * scale}pt; padding: {4 * scale}px {2 * scale}px;")
+    log_title_layout.addWidget(main_app.log_verbosity_toggle_button)
+    main_app.reset_button = QPushButton("🔄 Reset")
+    main_app.reset_button.setFixedWidth(int(80 * scale))
+    log_title_layout.addWidget(main_app.reset_button)
+    right_layout.addLayout(log_title_layout)
+    main_app.log_splitter = QSplitter(Qt.Vertical)
+    main_app.log_view_stack = QStackedWidget()
+    main_app.main_log_output = QTextEdit()
+    main_app.main_log_output.setReadOnly(True)
+    main_app.main_log_output.setLineWrapMode(QTextEdit.NoWrap)
+    main_app.log_view_stack.addWidget(main_app.main_log_output)
+    main_app.missed_character_log_output = QTextEdit()
+    main_app.missed_character_log_output.setReadOnly(True)
+    main_app.missed_character_log_output.setLineWrapMode(QTextEdit.NoWrap)
+    main_app.log_view_stack.addWidget(main_app.missed_character_log_output)
+    main_app.external_log_output = QTextEdit()
+    main_app.external_log_output.setReadOnly(True)
+    main_app.external_log_output.setLineWrapMode(QTextEdit.NoWrap)
+    main_app.external_log_output.hide()
+    main_app.log_splitter.addWidget(main_app.log_view_stack)
+    main_app.log_splitter.addWidget(main_app.external_log_output)
+    main_app.log_splitter.setSizes([main_app.height(), 0])
+    right_layout.addWidget(main_app.log_splitter, 1)
+    export_button_layout = QHBoxLayout()
+    export_button_layout.addStretch(1)
+    main_app.export_links_button = QPushButton(main_app._tr("export_links_button_text", "Export Links"))
+    main_app.export_links_button.setFixedWidth(int(100 * scale))
+    main_app.export_links_button.setEnabled(False)
+    main_app.export_links_button.setVisible(False)
+    export_button_layout.addWidget(main_app.export_links_button)
+    main_app.download_extracted_links_button = QPushButton(main_app._tr("download_extracted_links_button_text", "Download"))
+    main_app.download_extracted_links_button.setFixedWidth(int(100 * scale))
+    main_app.download_extracted_links_button.setEnabled(False)
+    main_app.download_extracted_links_button.setVisible(False)
+    export_button_layout.addWidget(main_app.download_extracted_links_button)
+    main_app.log_display_mode_toggle_button = QPushButton()
+    main_app.log_display_mode_toggle_button.setFixedWidth(int(120 * scale))
+    main_app.log_display_mode_toggle_button.setVisible(False)
+    export_button_layout.addWidget(main_app.log_display_mode_toggle_button)
+    right_layout.addLayout(export_button_layout)
+    main_app.progress_label = QLabel("Progress: Idle")
+    main_app.progress_label.setStyleSheet("padding-top: 5px; font-style: italic;")
+    right_layout.addWidget(main_app.progress_label)
+    main_app.file_progress_label = QLabel("")
+    main_app.file_progress_label.setToolTip("Shows the progress of individual file downloads, including speed and size.")
+    main_app.file_progress_label.setWordWrap(True)
+    main_app.file_progress_label.setStyleSheet("padding-top: 2px; font-style: italic; color: #A0A0A0;")
+    right_layout.addWidget(main_app.file_progress_label)
+
+    # --- Final Assembly ---
+    main_app.main_splitter.addWidget(left_scroll_area)
+    main_app.main_splitter.addWidget(right_panel_widget)
+    
+    if main_app.width() >= 1920:
+        # For wider resolutions, give more space to the log panel (right).
+        main_app.main_splitter.setStretchFactor(0, 4)
+        main_app.main_splitter.setStretchFactor(1, 6)
+    else:
+        # Default for lower resolutions, giving more space to controls (left).
+        main_app.main_splitter.setStretchFactor(0, 7)
+        main_app.main_splitter.setStretchFactor(1, 3)
+
+
+    top_level_layout = QHBoxLayout(main_app)
+    top_level_layout.setContentsMargins(0, 0, 0, 0)
+    top_level_layout.addWidget(main_app.main_splitter)
+
+    # --- Initial UI State Updates ---
+    main_app.update_ui_for_subfolders(main_app.use_subfolders_checkbox.isChecked())
+    main_app.update_external_links_setting(main_app.external_links_checkbox.isChecked())
+    main_app.update_multithreading_label(main_app.thread_count_input.text())
+    main_app.update_page_range_enabled_state()
+    if main_app.manga_mode_checkbox:
+        main_app.update_ui_for_manga_mode(main_app.manga_mode_checkbox.isChecked())
+    if hasattr(main_app, 'link_input'):
+        main_app.link_input.textChanged.connect(lambda: main_app.update_ui_for_manga_mode(main_app.manga_mode_checkbox.isChecked() if main_app.manga_mode_checkbox else False))
+    main_app._load_creator_name_cache_from_json()
+    main_app.load_known_names_from_util()
+    main_app._update_cookie_input_visibility(main_app.use_cookie_checkbox.isChecked() if hasattr(main_app, 'use_cookie_checkbox') else False)
+    main_app._handle_multithreading_toggle(main_app.use_multithreading_checkbox.isChecked())
+    if hasattr(main_app, 'radio_group') and main_app.radio_group.checkedButton():
+        main_app._handle_filter_mode_change(main_app.radio_group.checkedButton(), True)
+        main_app.radio_group.buttonToggled.connect(main_app._handle_more_options_toggled)
+        
+    main_app._update_manga_filename_style_button_text()
+    main_app._update_skip_scope_button_text()
+    main_app._update_char_filter_scope_button_text()
+    main_app._update_multithreading_for_date_mode()
+    if hasattr(main_app, 'download_thumbnails_checkbox'):
+        main_app._handle_thumbnail_mode_change(main_app.download_thumbnails_checkbox.isChecked())
+    if hasattr(main_app, 'favorite_mode_checkbox'):
+        main_app._handle_favorite_mode_toggle(False)
+
+def get_dark_theme(scale=1):
+    """
+    Generates the stylesheet for the dark theme, scaled by the given factor.
+    """
+    # Adjust base font size for better readability
+    font_size_base = 9.5
+    font_size_small_base = 8.5
+    
+    # Apply scaling
+    font_size = int(font_size_base * scale)
+    font_size_small = int(font_size_small_base * scale)
+    line_edit_padding = int(5 * scale)
+    button_padding_v = int(5 * scale)
+    button_padding_h = int(12 * scale)
+    tooltip_padding = int(4 * scale)
+    indicator_size = int(14 * scale)
+    
+    return f"""
+    QWidget {{ 
+        background-color: #2E2E2E; 
+        color: #E0E0E0; 
+        font-family: Segoe UI, Arial, sans-serif; 
+        font-size: {font_size}pt;
+    }}
+    QLineEdit, QListWidget, QTextEdit {{ 
+        background-color: #3C3F41; 
+        border: 1px solid #5A5A5A; 
+        padding: {line_edit_padding}px; 
+        color: #F0F0F0; 
+        border-radius: 4px; 
+        font-size: {font_size}pt; 
+    }}
+    QTextEdit {{
+        font-family: Consolas, Courier New, monospace;
+    }}
+    QPushButton {{ 
+        background-color: #555; 
+        color: #F0F0F0; 
+        border: 1px solid #6A6A6A; 
+        padding: {button_padding_v}px {button_padding_h}px; 
+        border-radius: 4px; 
+    }}
+    QPushButton:hover {{ background-color: #656565; border: 1px solid #7A7A7A; }}
+    QPushButton:pressed {{ background-color: #4A4A4A; }}
+    QPushButton:disabled {{ background-color: #404040; color: #888; border-color: #555; }}
+    QLabel {{ font-weight: bold; color: #C0C0C0; }}
+    QRadioButton, QCheckBox {{ spacing: {int(5 * scale)}px; color: #E0E0E0; }}
+    QRadioButton::indicator, QCheckBox::indicator {{ width: {indicator_size}px; height: {indicator_size}px; }}
+    QListWidget {{ alternate-background-color: #353535; }}
+    QListWidget::item:selected {{ background-color: #007ACC; color: #FFFFFF; }}
+    QToolTip {{ 
+        background-color: #4A4A4A; 
+        color: #F0F0F0; 
+        border: 1px solid #6A6A6A; 
+        padding: {tooltip_padding}px; 
+        border-radius: 3px; 
+        font-size: {font_size}pt;
+    }}
+    QSplitter::handle {{ background-color: #5A5A5A; }}
+    QSplitter::handle:horizontal {{ width: {int(5 * scale)}px; }}
+    QSplitter::handle:vertical {{ height: {int(5 * scale)}px; }}
+    """
+
+def apply_theme_to_app(main_app, theme_name, initial_load=False):
+    """
+    Applies the selected theme and scaling to the main application window.
+    """
+    main_app.current_theme = theme_name
+    if not initial_load:
+        main_app.settings.setValue(THEME_KEY, theme_name)
+        main_app.settings.sync()
+
+    if theme_name == "dark":
+        scale = getattr(main_app, 'scale_factor', 1)
+        main_app.setStyleSheet(get_dark_theme(scale))
+        if not initial_load:
+            main_app.log_signal.emit("🎨 Switched to Dark Mode.")
+    else:
+        main_app.setStyleSheet("")
+        if not initial_load:
+            main_app.log_signal.emit("🎨 Switched to Light Mode.")
+    main_app.update()