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React Component, Comment
import Link from 'next/link'
import React, { useState } from 'react'
import useConstructor from '../utils/constructor'
import Parse from '../utils/parser.js'
import sanitize from '../utils/sanitize'
import comment_styles from '../styles/Comment.module.css'
String.prototype.replaceArray = function(find, replace) {
let replaceString = this;
// Replace found strings (in array)
// with new strings (in a second array)
for (let i=0; i < find.length; i++) {
replaceString = replaceString.replace(find[i], replace[i]);
}
return replaceString;
}
export default function Comment(props) {
const [comment, setComment] = useState(props.comment);
const [uvc, setUVC] = useState(0);
const [message, setMessage] = useState('');
const [replyClass, setReplyClass] = useState('');
const parseUpvotes = (upvote_count) => {
if ( upvote_count > 999 ) {
if ( upvote_count > 99999 ) {
upvote_count = 'max';
} else {
upvote_count = upvote_count.slice(0, -3).toString() + 'k';
}
} else {
if ( upvote_count < -99 ) {
upvote_count = '🪠';
}
}
return upvote_count;
}
const autoLinkText = (post, approved=1) => {
let urls = getUrlsFromString( post );
let blur = '';
if (approved != 1) {
blur = ' class="blur"';
}
let processed_urls = [];
if ( urls != false ) {
const imgExt = ['png','gif','jpg','jpeg','webp'];
const urlExt = (this_url) => getUrlExtension(this_url);
const abbvUrl = (this_url) => abbreviateUrl(this_url);
urls.forEach(function( url ) {
let extension = urlExt(url) ?? false;
if (imgExt.includes(extension)) {
processed_urls.push('<div'+blur+'><img src="'+url+'" class="lazyload commentImage" /></div>');
} else {
const abbreviated_url = abbvUrl( url );
processed_urls.push(abbreviated_url);
}
});
if ( processed_urls.length == urls.length ) {
return post.replaceArray(urls, processed_urls);
}
} else {
return post;
}
}
const abbreviateUrl = ( url ) => {
// Remove 'www'
let abbreviated_url = url.replace(/^https?\:\/\//i, '').replace(/^www./, '');
// Abbreviate with ellipses if long
if (abbreviated_url.length > 20) {
abbreviated_url = abbreviated_url.slice(0, 20) + '&hellip;';
}
// Add 'http' to the beginning if not present (uses absolute URL)
if (!/^https?:\/\//i.test(url)) {
url = 'http://' + url;
}
return `<p><a href=${url} target="_blank" rel="noreferrer">${ abbreviated_url }</a></p>`;
}
const getUrlsFromString = ( post ) => {
// gruber revised expression - http://rodneyrehm.de/t/url-regex.html
// matches URLs in a string
let uri_pattern = /\b((?:[a-z][\w-]+:(?:\/{1,3}|[a-z0-9%])|www\d{0,3}[.]|[a-z0-9.\-]+[.][a-z]{2,4}\/)(?:[^\s()<>]+|\(([^\s()<>]+|(\([^\s()<>]+\)))*\))+(?:\(([^\s()<>]+|(\([^\s()<>]+\)))*\)|[^\s`!()\[\]{};:'".,<>?«»“”‘’]))/ig;
return post.match(uri_pattern) ?? false;
}
const getUrlExtension = ( url, lowercase=true ) => {
// Get extension
let extension = url.toString().split(/[#?]/)[0].split('.').pop().trim();
// If no extension, return false
if (extension == '') {
return false;
} else {
if (lowercase == true) {
return extension.toLowerCase();
}
}
}
useConstructor(() => {
setUVC(parseUpvotes(props.comment.upvotes - props.comment.downvotes));
setMessage(props.comment.content ? Parse( autoLinkText( sanitize( props.comment.content ) ) ) : '');
console.log(replyClass);
// const approved = comment.approved ?? false;
if ( props.reply_level > 0 ) {
setReplyClass(' commentReply indent-' + props.reply_level);
console.log(replyClass);
} else {
setReplyClass('');
}
});
const timeSince = (date) => {
const seconds = Math.floor((new Date() - date) / 1000);
let interval = seconds / 31536000;
if (interval > 1) {
return Math.floor(interval).toString() + " years ago";
}
interval = seconds / 2592000;
if (interval > 1) {
return Math.floor(interval).toString() + " months ago";
}
interval = seconds / 86400;
if (interval > 1) {
return Math.floor(interval).toString() + " days ago";
}
interval = seconds / 3600;
if (interval > 1) {
return Math.floor(interval).toString() + " hours ago";
}
interval = seconds / 60;
if (interval > 1) {
return Math.floor(interval).toString() + " minutes ago";
}
return Math.floor(seconds).toString() + " seconds ago";
}
return (
<>
<div id={ comment.cid } className={ `${comment_styles.main_wrapper}${replyClass}` }>
<div className={ comment_styles.body_wrapper }>
<div className={ comment_styles.body_row_1 }>
<div className={ comment_styles.body_col_1 }>
<span className={ comment_styles.comment_author }>{ comment.author }</span>
<span className={ comment_styles.comment_date }>{ timeSince( new Date(comment.created_at) ) }</span>
</div>
<div className={ comment_styles.body_col_2 }>
<Link href="/" className={ comment_styles.reply_button_wrapper }>
<div className={ comment_styles.reply_button }></div>
</Link>
</div>
</div>
<div className={ comment_styles.body_row_2 }>
<div className={ comment_styles.comment_wrapper }>
<div className={ comment_styles.comment_content }>{ message }</div>
</div>
</div>
</div>
<div className={ comment_styles.vote_wrapper }>
<div className={ comment_styles.vote_count }>
<span className={ comment_styles.count_text }>{ uvc }</span>
</div>
<div className={ comment_styles.upvote_button }>
<Link href="/">
<span></span>
</Link>
</div>
<div className={ comment_styles.downvote_button }>
<Link href="/">
<span></span>
</Link>
</div>
</div>
</div>
</>
);
}
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