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5chan/src/components/Catalog.jsx
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import React, { useState, useEffect } from 'react';
import { Link, useNavigate, useParams, useLocation } from 'react-router-dom';
import useBoardStore from '../useBoardStore';
import { Container, NavBar, Header, Break, PostForm, PostFormLink, PostFormTable } from './styles/Board.styled';
import { TopBar } from './styles/Thread.styled';
import { Threads } from './styles/Catalog.styled';
import { useFeed, useAccountsActions } from '@plebbit/plebbit-react-hooks';
import ImageBanner from './ImageBanner';
import CaptchaModal from './CaptchaModal';
import onError from '../utils/onError';
import InfiniteScroll from 'react-infinite-scroller';
const Catalog = ({ setBodyStyle }) => {
const {
selectedTitle,
setSelectedTitle,
selectedAddress,
setSelectedAddress,
setSelectedThread,
selectedStyle,
setSelectedStyle,
captchaResponse,
setCaptchaResponse
} = useBoardStore(state => state);
const [defaultSubplebbits, setDefaultSubplebbits] = useState([]);
const [showPostFormLink, setShowPostFormLink] = useState(true);
const [showPostForm, setShowPostForm] = useState(false);
const [name, setName] = useState('');
const [subject, setSubject] = useState('');
const [comment, setComment] = useState('');
const { publishComment } = useAccountsActions();
const [isCaptchaOpen, setIsCaptchaOpen] = useState(false);
const [captchaImage, setCaptchaImage] = useState('');
const navigate = useNavigate();
const location = useLocation();
const [prevScrollPos, setPrevScrollPos] = useState(0);
const [visible, setVisible] = useState(true);
const { feed, hasMore, loadMore } = useFeed([`${selectedAddress}`], 'new');
const { subplebbitAddress } = useParams();
useEffect(() => {
setSelectedAddress(subplebbitAddress);
const selectedSubplebbit = defaultSubplebbits.find((subplebbit) => subplebbit.address === subplebbitAddress);
if (selectedSubplebbit) {
setSelectedTitle(selectedSubplebbit.title);
}
}, [subplebbitAddress, setSelectedAddress, setSelectedTitle, defaultSubplebbits]);
useEffect(() => {
let didCancel = false;
fetch(
"https://raw.githubusercontent.com/plebbit/temporary-default-subplebbits/master/subplebbits.json",
{ cache: "no-cache" }
)
.then((res) => res.json())
.then(res => {
if (!didCancel) {
setDefaultSubplebbits(res);
}
});
return () => {
didCancel = true;
};
}, []);
useEffect(() => {
const handleScroll = () => {
const currentScrollPos = window.pageYOffset;
setVisible(prevScrollPos > currentScrollPos || currentScrollPos < 10);
setPrevScrollPos(currentScrollPos);
};
window.addEventListener('scroll', handleScroll);
return () => window.removeEventListener('scroll', handleScroll);
}, [prevScrollPos, visible]);
// post route handling
useEffect(() => {
const path = location.pathname;
if (path.endsWith('/post')) {
setShowPostFormLink(false);
setShowPostForm(true);
} else {
setShowPostFormLink(true);
setShowPostForm(false);
}
}, [location.pathname]);
// automatic dark mode without interefering with user's selected style
useEffect(() => {
const darkModeMediaQuery = window.matchMedia('(prefers-color-scheme: dark)');
const isDarkMode = darkModeMediaQuery.matches;
if (isDarkMode) {
setSelectedStyle('Tomorrow');
setBodyStyle({
background: '#1d1f21 none',
color: '#c5c8c6',
fontFamily: 'Arial, Helvetica, sans-serif'
});
localStorage.setItem('selectedStyle', 'Tomorrow');
}
const darkModeListener = (e) => {
if (e.matches) {
setSelectedStyle('Tomorrow');
setBodyStyle({
background: '#1d1f21 none',
color: '#c5c8c6',
fontFamily: 'Arial, Helvetica, sans-serif'
});
localStorage.setItem('selectedStyle', 'Tomorrow');
}
};
darkModeMediaQuery.addEventListener('change', darkModeListener);
return () => {
darkModeMediaQuery.removeEventListener('change', darkModeListener);
};
}, []);
const tryLoadMore = async () => {
try {loadMore()}
catch (e)
{await new Promise(resolve => setTimeout(resolve, 1000))}
}
const onChallengeVerification = (challengeVerification) => {
if (challengeVerification.challengeSuccess === true) {
console.log('challenge success', {publishedCid: challengeVerification.publication.cid})
}
else if (challengeVerification.challengeSuccess === false) {
console.error('challenge failed', {reason: challengeVerification.reason, errors: challengeVerification.errors});
alert("Error: You seem to have mistyped the CAPTCHA. Please try again.");
}
}
const onChallenge = async (challenges, comment) => {
let challengeAnswers = [];
try {
challengeAnswers = await getChallengeAnswersFromUser(challenges)
}
catch (error) {
console.log(error);
}
if (challengeAnswers) {
await comment.publishChallengeAnswers(challengeAnswers)
}
}
const getChallengeAnswersFromUser = async (challenges) => {
return new Promise((resolve, reject) => {
const imageString = challenges?.challenges[0].challenge;
const imageSource = `data:image/png;base64,${imageString}`;
const challengeImg = new Image();
challengeImg.src = imageSource;
challengeImg.onload = () => {
setIsCaptchaOpen(true);
setCaptchaImage(imageSource);
const handleKeyDown = (event) => {
if (event.key === 'Enter') {
setCaptchaImage('');
resolve(captchaResponse);
setIsCaptchaOpen(false);
document.removeEventListener('keydown', handleKeyDown);
}
};
setCaptchaResponse('');
document.addEventListener('keydown', handleKeyDown);
};
challengeImg.onerror = () => {
reject(new Error('Could not load challenge image'));
};
});
};
const handleVoidClick = () => {}
const handleClickTitle = (title, address) => {
setSelectedTitle(title);
setSelectedAddress(address);
};
const handleSelectChange = (event) => {
const selected = event.target.value;
const selectedTitle = defaultSubplebbits.find((subplebbit) => subplebbit.address === selected).title;
setSelectedTitle(selectedTitle);
setSelectedAddress(selected);
navigate(`/${selected}`);
}
const handleClickHelp = () => {
alert("- Embedding media is optional, posts can be text-only. \n- A CAPTCHA challenge will appear after posting. \n- The CAPTCHA is case-sensitive.");
};
const handleClickForm = () => {
setShowPostFormLink(false);
setShowPostForm(true);
navigate(`/${selectedAddress}/catalog/post`);
};
const handleClickThread = (thread) => {
setSelectedThread(thread);
}
const handlePublishComment = async () => {
// Event.preventDefault();
try {
const pendingComment = await publishComment({
content: comment,
title: subject,
subplebbitAddress: selectedAddress,
onChallengeVerification,
onChallenge,
onError: onError,
});
console.log(`Comment pending with index: ${pendingComment.index}`);
setName('');
setSubject('');
setComment('');
} catch (error) {
onError(error);
}
};
const handleCaptchaClose = () => {
setIsCaptchaOpen(false);
};
const handleStyleChange = (event) => {
switch (event.target.value) {
case "Yotsuba":
const yotsubaBodyStyle = {
background: "#ffe url(/assets/fade.png) top repeat-x",
color: "maroon",
fontFamily: "Arial, Helvetica, sans-serif"
};
setBodyStyle(yotsubaBodyStyle);
setSelectedStyle("Yotsuba");
localStorage.setItem("selectedStyle", "Yotsuba");
localStorage.setItem("bodyStyle", JSON.stringify(yotsubaBodyStyle));
break;
case "Yotsuba-B":
const yotsubaBBodyStyle = {
background: "#eef2ff url(/assets/fade-blue.png) top center repeat-x",
color: "#000",
fontFamily: "Arial, Helvetica, sans-serif"
};
setBodyStyle(yotsubaBBodyStyle);
setSelectedStyle("Yotsuba-B");
localStorage.setItem("selectedStyle", "Yotsuba-B");
localStorage.setItem("bodyStyle", JSON.stringify(yotsubaBBodyStyle));
break;
case "Futaba":
const futabaBodyStyle = {
background: "#ffe",
color: "maroon",
fontFamily: "times new roman, serif"
};
setBodyStyle(futabaBodyStyle);
setSelectedStyle("Futaba");
localStorage.setItem("selectedStyle", "Futaba");
localStorage.setItem("bodyStyle", JSON.stringify(futabaBodyStyle));
break;
case "Burichan":
const burichanBodyStyle = {
background: "#eef2ff",
color: "#000",
fontFamily: "times new roman, serif"
};
setBodyStyle(burichanBodyStyle);
setSelectedStyle("Burichan");
localStorage.setItem("selectedStyle", "Burichan");
localStorage.setItem("bodyStyle", JSON.stringify(burichanBodyStyle));
break;
case "Tomorrow":
const tomorrowBodyStyle = {
background: "#1d1f21 none",
color: "#c5c8c6",
fontFamily: "Arial, Helvetica, sans-serif"
};
setBodyStyle(tomorrowBodyStyle);
setSelectedStyle("Tomorrow");
localStorage.setItem("selectedStyle", "Tomorrow");
localStorage.setItem("bodyStyle", JSON.stringify(tomorrowBodyStyle));
break;
case "Photon":
const photonBodyStyle = {
background: "#eee none",
color: "#333",
fontFamily: "Arial, Helvetica, sans-serif"
};
setBodyStyle(photonBodyStyle);
setSelectedStyle("Photon");
localStorage.setItem("selectedStyle", "Photon");
localStorage.setItem("bodyStyle", JSON.stringify(photonBodyStyle));
break;
default:
const defaultBodyStyle = {
background: "#ffe url(/assets/fade.png) top repeat-x",
color: "maroon",
fontFamily: "Arial, Helvetica, sans-serif"
};
setBodyStyle(defaultBodyStyle);
setSelectedStyle("Yotsuba");
localStorage.setItem("selectedStyle", "Yotsuba");
localStorage.setItem("bodyStyle", JSON.stringify(defaultBodyStyle));
}
}
return (
<Container>
<CaptchaModal
isOpen={isCaptchaOpen}
closeModal={handleCaptchaClose}
captchaImage={captchaImage} />
<NavBar selectedStyle={selectedStyle}>
<>
{defaultSubplebbits.map(subplebbit => (
<span className="boardList" key={`span-${subplebbit.address}`}>
[
<Link to={`/${subplebbit.address}`} key={`a-${subplebbit.address}`} onClick={() => handleClickTitle(subplebbit.title, subplebbit.address)}
>{subplebbit.title}</Link>
]&nbsp;
</span>
))}
<span className="nav">
[
<Link to="" onClick={handleVoidClick}>Settings</Link>
]
[
<Link to="/" onClick={() => handleStyleChange({target: {value: "Yotsuba"}}
)}>Home</Link>
]
</span>
<div id="board-nav-mobile" style={{ top: visible ? 0 : '-23px' }}>
<div className="board-select">
<strong>Board</strong>
&nbsp;
<select id="board-select-mobile" value={selectedAddress} onChange={handleSelectChange}>
{defaultSubplebbits.map(subplebbit => (
<option key={`option-${subplebbit.address}`} value={subplebbit.address}
>{subplebbit.title}</option>
))}
</select>
</div>
<div className="page-jump">
<Link to="" onClick={handleVoidClick}>Settings</Link>
&nbsp;
<Link to="/" onClick={() => handleStyleChange({target: {value: "Yotsuba"}}
)}>Home</Link>
</div>
</div>
<div id="separator-mobile">&nbsp;</div>
<div id="separator-mobile">&nbsp;</div>
</>
</NavBar>
<Header selectedStyle={selectedStyle}>
<>
<div className="banner">
<ImageBanner />
</div>
<>
<div className="board-title">{selectedTitle}</div>
<div className="board-address">p/{selectedAddress}</div>
</>
</>
</Header>
<Break selectedStyle={selectedStyle} />
<PostForm selectedStyle={selectedStyle}>
<PostFormLink id="post-form-link" showPostFormLink={showPostFormLink} selectedStyle={selectedStyle} >
<div id="post-form-link-desktop">
[
<a onClick={handleClickForm} onMouseOver={(event) => event.target.style.cursor='pointer'}>Start a New Thread</a>
]
</div>
<div id="post-form-link-mobile">
<span className="btn-wrap">
<a onClick={handleClickForm} onMouseOver={(event) => event.target.style.cursor='pointer'}>Start a New Thread</a>
</span>
</div>
</PostFormLink>
<PostFormTable id="post-form" showPostForm={showPostForm} selectedStyle={selectedStyle} className="post-form">
<tbody>
<tr data-type="Name">
<td id="td-name">Name</td>
<td>
<input name="name" type="text" tabIndex={1} placeholder="Anonymous" value={name} onChange={(event) => setName(event.target.value)} />
</td>
</tr>
<tr data-type="Subject">
<td>Subject</td>
<td>
<input name="sub" type="text" tabIndex={3} value={subject} onChange={(event) => setSubject(event.target.value)} />
<input id="post-button" type="submit" value="Post" tabIndex={6} onClick={handlePublishComment} />
</td>
</tr>
<tr data-type="Comment">
<td>Comment</td>
<td>
<textarea name="com" cols="48" rows="4" tabIndex={4} wrap="soft" value={comment} onChange={(event) => setComment(event.target.value)}></textarea>
</td>
</tr>
<tr data-type="File">
<td>Embed File</td>
<td>
<input name="embed" type="text" tabIndex={7} placeholder="Paste link" />
<button id="t-help" type="button" onClick={handleClickHelp} data-tip="Help">?</button>
</td>
</tr>
</tbody>
</PostFormTable>
</PostForm>
<TopBar selectedStyle={selectedStyle}>
<hr />
<span className="style-changer">
Style:
 
<select id="style-selector" onChange={handleStyleChange} value={selectedStyle}>
<option value="Yotsuba">Yotsuba</option>
<option value="Yotsuba-B">Yotsuba B</option>
<option value="Futaba">Futaba</option>
<option value="Burichan">Burichan</option>
<option value="Tomorrow">Tomorrow</option>
<option value="Photon">Photon</option>
</select>
</span>
<div className="return-button" id="return-button-desktop">
[
<Link to={`/${selectedAddress}`}>Return</Link>
]
</div>
<div id="return-button-mobile">
<span className="btn-wrap-catalog btn-wrap">
<Link to={`/${selectedAddress}`}>Return</Link>
</span>
</div>
<hr />
</TopBar>
<Threads selectedStyle={selectedStyle}>
<InfiniteScroll
pageStart={0}
loadMore={tryLoadMore}
hasMore={hasMore}
loader={<div key={`loader-${feed.length}`}>Loading...</div>}
>
{feed.map(thread => {
return (
<div key={`thread-${thread.cid}`} className="thread">
<Link key={`a-${thread.cid}`} to={`/${selectedAddress}/thread/${thread.cid}`} onClick={() => handleClickThread(thread.cid)}>
<img key={`img-${thread.cid}`} alt="" src="/assets/plebchan-psycho.png" />
</Link>
<div key={`ti-${thread.cid}`} className="thread-icons" >
<span key={`si-${thread.cid}`} className="thread-icon sticky-icon" title="Sticky"></span>
</div>
<div key={`meta-${thread.cid}`} className="meta" title="(R)eplies / (I)mage Replies" >
R:
<b key={`b-${thread.cid}`}>{thread.replyCount}</b>
</div>
<div key={`t-${thread.cid}`} className="teaser">
<b key={`b2-${thread.cid}`}>{thread.title ? `${thread.title}` : null}</b>
{thread.content ? `: ${thread.content}` : null}
</div>
</div>
)})}
</InfiniteScroll>
</Threads>
</Container>
);
}
export default Catalog;