feat: redesign Automate page layout — tool palette + pipeline canvas

Restructure the pipeline builder UX from a cramped sidebar to a
spacious two-pane layout:

- Left pane: categorized, searchable Tool Palette (click-to-add)
- Right pane: Pipeline Canvas with sortable steps, inline action bar,
  and collapsible preview panel with before/after slider
- Mobile: full-screen canvas with FAB + bottom sheet for tool selection,
  image preview, and thumbnail strip (previously hidden entirely)
- Fix nested <button> HTML violation in SortableStep
- Fix stray semicolon rendering in step cards
This commit is contained in:
ashim-hq
2026-04-21 09:27:17 +08:00
parent 502d6b1c56
commit 2502239d79
4 changed files with 681 additions and 402 deletions
+456 -222
View File
@@ -1,9 +1,13 @@
import {
CheckCircle2,
ChevronDown,
ChevronLeft,
ChevronRight,
ChevronUp,
Download,
Layers,
Play,
Plus,
Save,
Trash2,
Workflow,
@@ -17,9 +21,12 @@ import { ProgressCard } from "@/components/common/progress-card";
import { ThumbnailStrip } from "@/components/common/thumbnail-strip";
import { AppLayout } from "@/components/layout/app-layout";
import { PipelineBuilder } from "@/components/tools/pipeline-builder";
import { ToolPalette } from "@/components/tools/tool-palette";
import { useMobile } from "@/hooks/use-mobile";
import { usePipelineProcessor } from "@/hooks/use-pipeline-processor";
import { formatHeaders } from "@/lib/api";
import { formatFileSize } from "@/lib/download";
import { cn } from "@/lib/utils";
import { useFileStore } from "@/stores/file-store";
import { type SavedPipeline, usePipelineStore } from "@/stores/pipeline-store";
@@ -59,13 +66,15 @@ export function AutomatePage() {
} = usePipelineStore();
const { processSingle, processAll, processing, error, progress } = usePipelineProcessor();
const isMobile = useMobile();
// Local state
const [saveName, setSaveName] = useState("");
const [saveDescription, setSaveDescription] = useState("");
const [showSaveForm, setShowSaveForm] = useState(false);
const [saving, setSaving] = useState(false);
const [showAllSaved, setShowAllSaved] = useState(false);
const [previewCollapsed, setPreviewCollapsed] = useState(false);
const [mobileToolPaletteOpen, setMobileToolPaletteOpen] = useState(false);
const hasFile = files.length > 0;
const hasProcessed = !!processedUrl;
@@ -73,7 +82,6 @@ export function AutomatePage() {
const hasPrev = selectedIndex > 0;
const hasNext = selectedIndex < entries.length - 1;
// Load saved pipelines on mount
useEffect(() => {
(async () => {
try {
@@ -133,7 +141,6 @@ export function AutomatePage() {
}),
});
if (res.ok) {
// Refresh saved pipelines
const listRes = await fetch("/api/v1/pipeline/list", {
headers: formatHeaders(),
});
@@ -203,32 +210,238 @@ export function AutomatePage() {
[navigateNext, navigatePrev],
);
const handleAddStep = useCallback(
(toolId: string) => {
addStep(toolId);
if (isMobile) setMobileToolPaletteOpen(false);
},
[addStep, isMobile],
);
/* ------------------------------------------------------------------ */
/* Mobile Layout */
/* ------------------------------------------------------------------ */
if (isMobile) {
return (
<AppLayout showToolPanel={false}>
<div className="flex flex-col h-full w-full overflow-hidden">
{/* Mobile header */}
<div className="flex items-center gap-2 px-4 py-3 border-b border-border shrink-0">
<Workflow className="h-5 w-5 text-primary" />
<h1 className="text-base font-semibold text-foreground flex-1">Automate</h1>
{hasFile && (
<span className="text-xs text-muted-foreground bg-muted px-2 py-0.5 rounded-full">
{files.length} file{files.length !== 1 ? "s" : ""}
</span>
)}
</div>
{/* Mobile pipeline steps */}
<div className="flex-1 overflow-y-auto px-4 py-3">
{!hasFile && (
<div className="mb-4">
<Dropzone onFiles={handleFiles} accept="image/*" multiple currentFiles={files} />
</div>
)}
{hasFile && (
<div className="flex items-center gap-2 mb-3 p-2 rounded-lg bg-muted/50">
<CheckCircle2 className="h-4 w-4 text-green-500 shrink-0" />
<span className="text-sm text-foreground truncate flex-1">
{selectedFileName ?? files[0].name}
</span>
<button
type="button"
onClick={handleAddMore}
className="text-xs text-primary hover:text-primary/80"
>
+ Add
</button>
<button
type="button"
onClick={() => resetFiles()}
className="text-xs text-muted-foreground hover:text-foreground"
>
Clear
</button>
</div>
)}
{/* Mobile image preview / result */}
{hasFile && hasProcessed && originalBlobUrl && (
<div className="mb-3 rounded-lg border border-border overflow-hidden">
<div className="relative h-48">
<BeforeAfterSlider
beforeSrc={originalBlobUrl}
afterSrc={processedUrl as string}
beforeSize={originalSize ?? undefined}
afterSize={processedSize ?? undefined}
/>
</div>
{processedSize != null && (
<div className="flex items-center justify-between px-3 py-1.5 border-t border-border text-xs text-muted-foreground">
<span className="truncate">{selectedFileName ?? files[0].name}</span>
<span>
{formatFileSize(originalSize ?? 0)} &rarr; {formatFileSize(processedSize)}
</span>
</div>
)}
</div>
)}
{hasFile && !hasProcessed && originalBlobUrl && currentEntry?.status !== "failed" && (
<div className="mb-3 rounded-lg border border-border overflow-hidden h-40 flex items-center justify-center bg-muted/20">
<ImageViewer
src={originalBlobUrl}
filename={selectedFileName ?? files[0].name}
fileSize={selectedFileSize ?? files[0].size}
/>
</div>
)}
{hasFile && !hasProcessed && currentEntry?.status === "failed" && (
<div className="mb-3 rounded-lg border border-border p-3 text-center">
<p className="text-sm text-red-500">
{currentEntry.error ?? "Processing failed for this file"}
</p>
</div>
)}
{hasMultiple && (
<div className="mb-3">
<ThumbnailStrip
entries={entries}
selectedIndex={selectedIndex}
onSelect={setSelectedIndex}
/>
</div>
)}
<PipelineBuilder
steps={steps}
expandedStepId={expandedStepId}
onRemoveStep={removeStep}
onReorderSteps={reorderSteps}
onUpdateSettings={updateStepSettings}
onToggleStep={setExpandedStep}
/>
{error && (
<div className="mt-3 text-xs text-red-500 bg-red-50 dark:bg-red-950/30 rounded px-2 py-1.5 flex items-start gap-1.5">
<X className="h-3.5 w-3.5 shrink-0 mt-0.5" />
<span>{error}</span>
</div>
)}
{processing && (
<div className="mt-3">
<ProgressCard
active={progress.phase !== "idle"}
phase={progress.phase === "idle" ? "processing" : progress.phase}
label={
files.length > 1
? `Processing ${files.length} files...`
: "Processing pipeline..."
}
stage={progress.stage}
percent={progress.percent}
elapsed={progress.elapsed}
/>
</div>
)}
</div>
{/* Mobile action bar */}
<div className="p-3 border-t border-border shrink-0 flex gap-2">
<button
type="button"
onClick={handleProcess}
disabled={!hasFile || steps.length === 0 || processing}
className="flex-1 py-2.5 rounded-lg bg-primary text-primary-foreground font-medium flex items-center justify-center gap-2 disabled:opacity-50 disabled:cursor-not-allowed"
>
<Play className="h-4 w-4" />
{files.length <= 1 ? "Process" : `Process (${files.length})`}
</button>
{hasProcessed && batchZipBlob && (
<button
type="button"
onClick={handleDownloadAll}
className="px-4 py-2.5 rounded-lg border border-primary text-primary"
>
<Download className="h-4 w-4" />
</button>
)}
</div>
{/* Mobile FAB for tool palette */}
<button
type="button"
onClick={() => setMobileToolPaletteOpen(true)}
className="fixed bottom-24 right-4 z-20 w-14 h-14 rounded-full bg-primary text-primary-foreground shadow-lg flex items-center justify-center hover:bg-primary/90 active:scale-95 transition-transform"
>
<Plus className="h-6 w-6" />
</button>
{/* Mobile tool palette bottom sheet */}
{mobileToolPaletteOpen && (
<>
<div
aria-hidden="true"
className="fixed inset-0 z-40 bg-black/50 backdrop-blur-sm"
onClick={() => setMobileToolPaletteOpen(false)}
/>
<div className="fixed inset-x-0 bottom-0 z-50 bg-background border-t border-border rounded-t-2xl shadow-xl max-h-[70vh] flex flex-col animate-in slide-in-from-bottom">
<div className="flex items-center justify-between px-4 py-3 border-b border-border shrink-0">
<h2 className="text-sm font-semibold text-foreground">Add Tool</h2>
<button
type="button"
onClick={() => setMobileToolPaletteOpen(false)}
className="p-1.5 rounded-lg hover:bg-muted"
>
<X className="h-4 w-4" />
</button>
</div>
<ToolPalette onAddStep={handleAddStep} className="flex-1 min-h-0" />
</div>
</>
)}
</div>
</AppLayout>
);
}
/* ------------------------------------------------------------------ */
/* Desktop Layout */
/* ------------------------------------------------------------------ */
return (
<AppLayout showToolPanel={false}>
<div className="flex h-full w-full overflow-hidden">
{/* LEFT PANEL */}
<div className="w-72 border-r border-border flex flex-col shrink-0 hidden md:flex">
{/* Header */}
{/* LEFT PANE — Tool Palette */}
<div className="w-72 border-r border-border flex flex-col shrink-0">
{/* Palette header */}
<div className="flex items-center gap-3 p-4 border-b border-border shrink-0">
<div className="p-2 rounded-lg bg-primary text-primary-foreground">
<Workflow className="h-5 w-5" />
<Layers className="h-5 w-5" />
</div>
<div>
<h1 className="text-lg font-semibold text-foreground">Automate</h1>
<p className="text-xs text-muted-foreground">Chain tools into a pipeline</p>
<h2 className="text-sm font-semibold text-foreground">Tool Palette</h2>
<p className="text-xs text-muted-foreground">Click to add to pipeline</p>
</div>
</div>
{/* Saved pipelines strip */}
{/* Tool catalog */}
<ToolPalette onAddStep={handleAddStep} className="flex-1 min-h-0" />
{/* Saved pipelines */}
{savedPipelines.length > 0 && (
<div className="px-4 pt-3 pb-2 border-b border-border shrink-0">
<h3 className="text-xs font-semibold uppercase text-muted-foreground tracking-wider mb-2">
Saved Pipelines
<div className="px-3 py-2 border-t border-border shrink-0">
<h3 className="text-xs font-semibold uppercase text-muted-foreground tracking-wider mb-1.5">
Saved
</h3>
{showAllSaved ? (
<div className="space-y-1.5 max-h-48 overflow-y-auto">
<div className="space-y-1 max-h-36 overflow-y-auto">
{savedPipelines.map((p) => (
<div key={p.id} className="flex items-center gap-1.5 group">
<div key={p.id} className="flex items-center gap-1 group">
<button
type="button"
onClick={() => handleLoadPipeline(p)}
@@ -257,13 +470,13 @@ export function AutomatePage() {
</button>
</div>
) : (
<div className="flex flex-wrap gap-1.5">
<div className="flex flex-wrap gap-1">
{savedPipelines.slice(0, 3).map((p) => (
<button
key={p.id}
type="button"
onClick={() => handleLoadPipeline(p)}
className="inline-flex items-center gap-1 px-2 py-1 rounded-full bg-muted text-xs text-foreground hover:bg-primary/10 hover:text-primary transition-colors truncate max-w-[120px]"
className="inline-flex items-center gap-1 px-2 py-0.5 rounded-full bg-muted text-xs text-foreground hover:bg-primary/10 hover:text-primary transition-colors truncate max-w-[110px]"
>
<Play className="h-3 w-3 shrink-0" />
<span className="truncate">{p.name}</span>
@@ -273,7 +486,7 @@ export function AutomatePage() {
<button
type="button"
onClick={() => setShowAllSaved(true)}
className="text-xs text-muted-foreground hover:text-foreground px-2 py-1"
className="text-xs text-muted-foreground hover:text-foreground px-2 py-0.5"
>
+{savedPipelines.length - 3} more
</button>
@@ -282,153 +495,153 @@ export function AutomatePage() {
)}
</div>
)}
</div>
{/* File info */}
<div className="px-4 pt-3 pb-2 border-b border-border shrink-0">
<h3 className="text-xs font-semibold uppercase text-muted-foreground tracking-wider mb-2">
Files
</h3>
{files.length === 0 ? (
<p className="text-xs text-muted-foreground italic">
Drop or upload images to get started
{/* RIGHT PANE — Pipeline Canvas + Preview */}
<div className="flex-1 flex flex-col overflow-hidden min-w-0">
{/* Canvas header */}
<div className="flex items-center gap-3 px-5 py-3 border-b border-border shrink-0">
<Workflow className="h-5 w-5 text-primary" />
<div className="flex-1 min-w-0">
<h1 className="text-lg font-semibold text-foreground">Pipeline Builder</h1>
<p className="text-xs text-muted-foreground">
{steps.length === 0
? "Add tools from the palette to get started"
: `${steps.length} step${steps.length !== 1 ? "s" : ""} configured`}
</p>
) : (
<div className="space-y-1">
<div className="flex items-center justify-between">
<span className="text-xs font-medium text-foreground">
{files.length} file{files.length !== 1 ? "s" : ""}
</div>
{/* File badge */}
{hasFile ? (
<div className="flex items-center gap-2 shrink-0">
<div className="flex items-center gap-1.5 text-xs bg-muted rounded-full px-3 py-1">
<CheckCircle2 className="h-3.5 w-3.5 text-green-500" />
<span className="text-foreground max-w-[120px] truncate">
{files.length > 1
? `${files.length} files`
: (selectedFileName ?? files[0].name)}
</span>
<button
type="button"
onClick={handleAddMore}
className="text-xs text-primary hover:text-primary/80"
>
+ Add more
</button>
</div>
<div className="flex items-center gap-1.5 text-xs text-foreground bg-muted rounded px-2 py-1.5">
<CheckCircle2 className="h-3.5 w-3.5 text-green-500 shrink-0" />
<span className="truncate flex-1">{selectedFileName ?? files[0].name}</span>
<span className="text-muted-foreground shrink-0 ml-1">
<span className="text-muted-foreground">
{formatFileSize(selectedFileSize ?? files[0].size)}
</span>
</div>
<button
type="button"
onClick={handleAddMore}
className="text-xs text-primary hover:text-primary/80"
>
+ Add
</button>
<button
type="button"
onClick={() => resetFiles()}
className="text-xs text-muted-foreground hover:text-foreground"
>
Clear all
Clear
</button>
</div>
) : (
<span className="text-xs text-muted-foreground italic shrink-0">No files loaded</span>
)}
</div>
{/* Error display */}
{error && (
<div className="px-4 pt-2 shrink-0">
<div className="text-xs text-red-500 bg-red-50 dark:bg-red-950/30 rounded px-2 py-1.5 flex items-start gap-1.5">
<X className="h-3.5 w-3.5 shrink-0 mt-0.5" />
<span>{error}</span>
</div>
</div>
)}
{/* Canvas body */}
<div className="flex-1 flex flex-col overflow-hidden min-h-0">
{/* Pipeline steps area */}
<div className="flex-1 overflow-y-auto px-5 py-4 min-h-0">
{error && (
<div className="mb-3 text-xs text-red-500 bg-red-50 dark:bg-red-950/30 rounded-lg px-3 py-2 flex items-start gap-1.5">
<X className="h-3.5 w-3.5 shrink-0 mt-0.5" />
<span>{error}</span>
</div>
)}
{/* Pipeline steps (scrollable) */}
<div className="flex-1 overflow-y-auto px-4 pt-3 pb-2">
<h3 className="text-xs font-semibold uppercase text-muted-foreground tracking-wider mb-2">
Pipeline Steps
</h3>
<PipelineBuilder
steps={steps}
expandedStepId={expandedStepId}
onAddStep={addStep}
onRemoveStep={removeStep}
onReorderSteps={reorderSteps}
onUpdateSettings={updateStepSettings}
onToggleStep={setExpandedStep}
/>
</div>
{/* Progress card */}
{processing && (
<div className="px-4 pb-2 shrink-0">
<ProgressCard
active={progress.phase !== "idle"}
phase={progress.phase === "idle" ? "processing" : progress.phase}
label={
files.length > 1
? `Processing ${files.length} files...`
: "Processing pipeline..."
}
stage={progress.stage}
percent={progress.percent}
elapsed={progress.elapsed}
<PipelineBuilder
steps={steps}
expandedStepId={expandedStepId}
onRemoveStep={removeStep}
onReorderSteps={reorderSteps}
onUpdateSettings={updateStepSettings}
onToggleStep={setExpandedStep}
/>
{processing && (
<div className="mt-4">
<ProgressCard
active={progress.phase !== "idle"}
phase={progress.phase === "idle" ? "processing" : progress.phase}
label={
files.length > 1
? `Processing ${files.length} files...`
: "Processing pipeline..."
}
stage={progress.stage}
percent={progress.percent}
elapsed={progress.elapsed}
/>
</div>
)}
</div>
)}
{/* Action buttons (sticky bottom) */}
<div className="p-4 border-t border-border space-y-2 shrink-0">
{/* Process button */}
<button
type="button"
onClick={handleProcess}
disabled={!hasFile || steps.length === 0 || processing}
className="w-full py-2.5 rounded-lg bg-primary text-primary-foreground font-medium flex items-center justify-center gap-2 hover:bg-primary/90 disabled:opacity-50 disabled:cursor-not-allowed"
>
<Play className="h-4 w-4" />
{files.length <= 1 ? "Process" : `Process All (${files.length} files)`}
</button>
{/* Download All ZIP */}
{hasProcessed && batchZipBlob && (
{/* Action bar */}
<div className="px-5 py-3 border-t border-border shrink-0 flex items-center gap-2">
<button
type="button"
onClick={handleDownloadAll}
className="w-full py-2.5 rounded-lg border border-primary text-primary font-medium flex items-center justify-center gap-2 hover:bg-primary/5"
onClick={handleProcess}
disabled={!hasFile || steps.length === 0 || processing}
className="px-5 py-2.5 rounded-lg bg-primary text-primary-foreground font-medium flex items-center gap-2 hover:bg-primary/90 disabled:opacity-50 disabled:cursor-not-allowed"
>
<Download className="h-4 w-4" />
Download All (ZIP)
<Play className="h-4 w-4" />
{files.length <= 1 ? "Process" : `Process All (${files.length})`}
</button>
)}
{/* Save pipeline */}
{steps.length > 0 && !showSaveForm && (
<button
type="button"
onClick={() => setShowSaveForm(true)}
className="w-full py-2 rounded-lg border border-border text-muted-foreground font-medium flex items-center justify-center gap-2 hover:bg-muted hover:text-foreground text-sm"
>
<Save className="h-4 w-4" />
Save Pipeline
</button>
)}
{hasProcessed && batchZipBlob && (
<button
type="button"
onClick={handleDownloadAll}
className="px-4 py-2.5 rounded-lg border border-primary text-primary font-medium flex items-center gap-2 hover:bg-primary/5"
>
<Download className="h-4 w-4" />
Download ZIP
</button>
)}
{showSaveForm && (
<div className="space-y-2 rounded-lg border border-border p-3 bg-muted/30">
<input
type="text"
value={saveName}
onChange={(e) => setSaveName(e.target.value)}
placeholder="Pipeline name"
className="w-full text-sm px-2.5 py-1.5 rounded border border-border bg-background text-foreground placeholder:text-muted-foreground"
/>
<input
type="text"
value={saveDescription}
onChange={(e) => setSaveDescription(e.target.value)}
placeholder="Description (optional)"
className="w-full text-sm px-2.5 py-1.5 rounded border border-border bg-background text-foreground placeholder:text-muted-foreground"
/>
<div className="flex gap-2">
<span className="flex-1" />
{steps.length > 0 && !showSaveForm && (
<button
type="button"
onClick={() => setShowSaveForm(true)}
className="px-4 py-2 rounded-lg border border-border text-muted-foreground font-medium flex items-center gap-2 hover:bg-muted hover:text-foreground text-sm"
>
<Save className="h-4 w-4" />
Save
</button>
)}
{showSaveForm && (
<div className="flex items-center gap-2">
<input
type="text"
value={saveName}
onChange={(e) => setSaveName(e.target.value)}
placeholder="Pipeline name"
className="text-sm px-2.5 py-1.5 rounded border border-border bg-background text-foreground placeholder:text-muted-foreground w-36"
/>
<input
type="text"
value={saveDescription}
onChange={(e) => setSaveDescription(e.target.value)}
placeholder="Description"
className="text-sm px-2.5 py-1.5 rounded border border-border bg-background text-foreground placeholder:text-muted-foreground w-36"
/>
<button
type="button"
onClick={handleSave}
disabled={!saveName.trim() || saving}
className="flex-1 py-1.5 rounded bg-primary text-primary-foreground text-sm font-medium disabled:opacity-50 disabled:cursor-not-allowed"
className="px-3 py-1.5 rounded bg-primary text-primary-foreground text-sm font-medium disabled:opacity-50"
>
{saving ? "Saving..." : "Save"}
{saving ? "..." : "Save"}
</button>
<button
type="button"
@@ -437,106 +650,127 @@ export function AutomatePage() {
setSaveName("");
setSaveDescription("");
}}
className="px-3 py-1.5 rounded border border-border text-sm text-muted-foreground hover:bg-muted"
className="px-2 py-1.5 rounded text-sm text-muted-foreground hover:bg-muted"
>
Cancel
</button>
</div>
</div>
)}
</div>
</div>
)}
</div>
{/* RIGHT PANEL */}
<section
aria-label="Image area"
className="flex-1 flex flex-col overflow-hidden min-h-0"
onKeyDown={hasMultiple ? handleImageKeyDown : undefined}
tabIndex={hasMultiple ? 0 : undefined}
>
<div className="flex-1 relative flex items-center justify-center p-6 min-h-0">
{/* Nav arrows */}
{hasMultiple && hasPrev && (
{/* Preview panel (collapsible) */}
<div
className={cn(
"border-t border-border shrink-0 flex flex-col transition-all",
previewCollapsed ? "h-10" : "h-[38%] min-h-[200px]",
)}
>
{/* Preview header with toggle */}
<button
type="button"
onClick={navigatePrev}
className="absolute left-3 z-10 w-8 h-8 rounded-full bg-background/80 border border-border shadow-sm flex items-center justify-center hover:bg-background transition-colors"
aria-label="Previous image"
onClick={() => setPreviewCollapsed(!previewCollapsed)}
className="flex items-center gap-2 px-5 py-2 shrink-0 hover:bg-muted/50 transition-colors"
>
<ChevronLeft className="h-4 w-4" />
</button>
)}
{hasMultiple && hasNext && (
<button
type="button"
onClick={navigateNext}
className="absolute right-3 z-10 w-8 h-8 rounded-full bg-background/80 border border-border shadow-sm flex items-center justify-center hover:bg-background transition-colors"
aria-label="Next image"
>
<ChevronRight className="h-4 w-4" />
</button>
)}
{hasMultiple && (
<div className="absolute top-3 right-3 z-10 bg-background/80 border border-border px-2 py-0.5 rounded-full text-xs text-muted-foreground tabular-nums">
{selectedIndex + 1} / {entries.length}
</div>
)}
{/* Image display area */}
{!hasFile && (
<Dropzone onFiles={handleFiles} accept="image/*" multiple currentFiles={files} />
)}
{hasFile && !hasProcessed && currentEntry?.status === "failed" && (
<div className="flex flex-col items-center justify-center gap-3 h-full text-center px-4">
<p className="text-sm text-red-500">
{currentEntry.error ?? "Processing failed for this file"}
</p>
</div>
)}
{hasFile && hasProcessed && originalBlobUrl && (
<BeforeAfterSlider
beforeSrc={originalBlobUrl}
afterSrc={processedUrl as string}
beforeSize={originalSize ?? undefined}
afterSize={processedSize ?? undefined}
/>
)}
{hasFile && !hasProcessed && originalBlobUrl && currentEntry?.status !== "failed" && (
<ImageViewer
src={originalBlobUrl}
filename={selectedFileName ?? files[0].name}
fileSize={selectedFileSize ?? files[0].size}
/>
)}
</div>
{/* Info bar */}
{hasFile && (
<div className="flex items-center justify-between px-3 py-1.5 border-t border-border text-xs text-muted-foreground shrink-0">
<span className="truncate mr-2">{selectedFileName ?? files[0].name}</span>
<div className="flex items-center gap-3 shrink-0">
{hasProcessed && processedSize != null && (
<span>
{previewCollapsed ? (
<ChevronUp className="h-4 w-4 text-muted-foreground" />
) : (
<ChevronDown className="h-4 w-4 text-muted-foreground" />
)}
<span className="text-xs font-medium text-muted-foreground uppercase tracking-wider">
Preview
</span>
{hasFile && hasProcessed && processedSize != null && (
<span className="text-xs text-muted-foreground ml-auto">
{formatFileSize(originalSize ?? 0)} &rarr; {formatFileSize(processedSize)}
</span>
)}
{!hasProcessed && <span>{formatFileSize(selectedFileSize ?? files[0].size)}</span>}
</div>
</div>
)}
</button>
{/* Thumbnail strip for multi-file */}
{hasMultiple && (
<ThumbnailStrip
entries={entries}
selectedIndex={selectedIndex}
onSelect={setSelectedIndex}
/>
)}
</section>
{/* Preview content */}
{!previewCollapsed && (
<section
aria-label="Image area"
className="flex-1 flex flex-col overflow-hidden min-h-0"
onKeyDown={hasMultiple ? handleImageKeyDown : undefined}
tabIndex={hasMultiple ? 0 : undefined}
>
<div className="flex-1 relative flex items-center justify-center px-6 py-2 min-h-0">
{hasMultiple && hasPrev && (
<button
type="button"
onClick={navigatePrev}
className="absolute left-3 z-10 w-8 h-8 rounded-full bg-background/80 border border-border shadow-sm flex items-center justify-center hover:bg-background transition-colors"
aria-label="Previous image"
>
<ChevronLeft className="h-4 w-4" />
</button>
)}
{hasMultiple && hasNext && (
<button
type="button"
onClick={navigateNext}
className="absolute right-3 z-10 w-8 h-8 rounded-full bg-background/80 border border-border shadow-sm flex items-center justify-center hover:bg-background transition-colors"
aria-label="Next image"
>
<ChevronRight className="h-4 w-4" />
</button>
)}
{hasMultiple && (
<div className="absolute top-2 right-3 z-10 bg-background/80 border border-border px-2 py-0.5 rounded-full text-xs text-muted-foreground tabular-nums">
{selectedIndex + 1} / {entries.length}
</div>
)}
{!hasFile && (
<Dropzone
onFiles={handleFiles}
accept="image/*"
multiple
currentFiles={files}
/>
)}
{hasFile && !hasProcessed && currentEntry?.status === "failed" && (
<div className="flex flex-col items-center justify-center gap-2 h-full text-center px-4">
<p className="text-sm text-red-500">
{currentEntry.error ?? "Processing failed for this file"}
</p>
</div>
)}
{hasFile && hasProcessed && originalBlobUrl && (
<BeforeAfterSlider
beforeSrc={originalBlobUrl}
afterSrc={processedUrl as string}
beforeSize={originalSize ?? undefined}
afterSize={processedSize ?? undefined}
/>
)}
{hasFile &&
!hasProcessed &&
originalBlobUrl &&
currentEntry?.status !== "failed" && (
<ImageViewer
src={originalBlobUrl}
filename={selectedFileName ?? files[0].name}
fileSize={selectedFileSize ?? files[0].size}
/>
)}
</div>
{hasMultiple && (
<ThumbnailStrip
entries={entries}
selectedIndex={selectedIndex}
onSelect={setSelectedIndex}
/>
)}
</section>
)}
</div>
</div>
</div>
</div>
</AppLayout>
);