WTF IS MODERN JS?!?!
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Igor Katson
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332
crates/librqbit/webui/dist/webui/src/index.jsx
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crates/librqbit/webui/dist/webui/src/index.jsx
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import { Fragment, render } from 'preact';
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import { useState } from 'preact/hooks';
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// Define API URL and base path
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const apiUrl = (window.origin === 'null' || window.origin === 'http://localhost:3031') ? 'http://localhost:3030' : '';
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// Helper function for making API requests (async/await)
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async function makeRequest(method, path, data) {
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const url = apiUrl + path;
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const options = {
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method,
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headers: {
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'Accept': 'application/json',
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},
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body: data,
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};
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try {
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const response = await fetch(url, options);
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if (!response.ok) {
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const errorBody = await response.text();
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try {
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const json = JSON.parse(errorBody);
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displayApiError({
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status: response.status,
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statusText: response.statusText,
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body: json.human_readable !== undefined ? json.human_readable : errorBody,
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});
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}
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catch (e) {
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displayApiError({
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status: response.status,
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statusText: response.statusText,
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body: errorBody,
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});
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}
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return Promise.reject(errorBody);
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}
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const result = await response.json();
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return result;
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}
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catch (error) {
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console.error(error);
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displayApiError({
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status: error.status,
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statusText: error.statusText,
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body: error.toString(),
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});
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return Promise.reject(`Error: ${error.message}`);
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}
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}
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// Function to get detailed information about a torrent (async/await)
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async function getTorrentDetails(index) {
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return makeRequest('GET', `/torrents/${index}`);
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}
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// Function to get detailed statistics about a torrent (async/await)
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async function getTorrentStats(index) {
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return makeRequest('GET', `/torrents/${index}/stats`);
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}
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function TorrentRow(props) {
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const { detailsResponse, statsResponse } = this.props;
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const totalBytes = statsResponse.snapshot.total_bytes;
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const downloadedBytes = statsResponse.snapshot.have_bytes;
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const downloadPercentage = (downloadedBytes / totalBytes) * 100;
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return (<div class="torrent-row d-flex flex-row p-3 bg-light rounded mb-3">
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{/* Create and render columns */}
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<Column label="Name" value={getLargestFileName(detailsResponse)}/>
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<Column label="Size" value={`${formatBytesToGB(totalBytes)} GB`}/>
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<ColumnWithProgressBar label="Progress" percentage={downloadPercentage}/>
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<Column label="Download Speed" value={statsResponse.download_speed.human_readable}/>
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<Column label="ETA" value={getCompletionETA(statsResponse)}/>
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<Column label="Peers" value={`${statsResponse.snapshot.peer_stats.live} / ${statsResponse.snapshot.peer_stats.seen}`}/>
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</div>);
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}
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// Define a Preact component for a column
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const Column = ({ label, value }) => (<div class={`column-${label.toLowerCase().replace(" ", "-")} me-3 p-2`}>
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<p class="font-weight-bold">{label}</p>
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<p>{value}</p>
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</div>);
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// Define a Preact component for a column with a progress bar
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const ColumnWithProgressBar = ({ label, percentage }) => (<div class="column-progress me-3 p-2">
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<p class="font-weight-bold">{label}</p>
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<div class="progress mb-1">
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<div class="progress-bar" style={`width: ${percentage}%;`}></div>
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</div>
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<p class="mb-1">{percentage.toFixed(2)}%</p>
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</div>);
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const DeferredTorrent = ({ torrent }) => {
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const defaultDetails = {
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files: []
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};
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const defaultStats = {
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snapshot: {
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have_bytes: 0,
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downloaded_and_checked_bytes: 0,
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downloaded_and_checked_pieces: 0,
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fetched_bytes: 0,
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uploaded_bytes: 0,
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initially_needed_bytes: 0,
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remaining_bytes: 0,
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total_bytes: 0,
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total_piece_download_ms: 0,
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peer_stats: {
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queued: 0,
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connecting: 0,
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live: 0,
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seen: 0,
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dead: 0,
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not_needed: 0
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}
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},
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average_piece_download_time: {
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secs: 0,
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nanos: 0
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},
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download_speed: {
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mbps: 0,
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human_readable: ''
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},
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all_time_download_speed: {
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mbps: 0,
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human_readable: ''
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},
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time_remaining: {
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human_readable: ''
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}
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};
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const [detailsResponse, updateDetailsResponse] = useState(defaultDetails);
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const [statsResponse, updateStatsResponse] = useState(defaultStats);
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const update = async () => {
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let a = getTorrentDetails(torrent.id).then((details) => {
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updateDetailsResponse(details);
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});
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let b = getTorrentStats(torrent.id).then((stats) => {
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updateStatsResponse(stats);
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});
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await Promise.all([a, b]);
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setTimeout(update, 500);
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};
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setTimeout(update, 500);
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return <TorrentRow detailsResponse={detailsResponse} statsResponse={statsResponse}/>;
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};
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// Render function to display all torrents
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async function displayTorrents() {
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const response = await makeRequest('GET', '/torrents');
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const torrents = response.torrents;
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// Get the torrents container
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const torrentsContainer = document.getElementById('output');
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let root = torrents.map((t) => {
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(<Fragment key={t.id}>
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<DeferredTorrent torrent={t}/>
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</Fragment>);
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});
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render(root, torrentsContainer);
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}
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// Function to update HTML for a torrent row
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function updateTorrentRow(torrentRow, detailsResponse, statsResponse) {
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// Calculate download percentage
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const totalBytes = statsResponse.snapshot.total_bytes;
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const downloadedBytes = statsResponse.snapshot.have_bytes;
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const downloadPercentage = (downloadedBytes / totalBytes) * 100;
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// Display basic information about the torrent
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const largestFileName = getLargestFileName(detailsResponse);
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const downloadSpeed = statsResponse.download_speed.human_readable;
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const eta = getCompletionETA(statsResponse);
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const peers = `${statsResponse.snapshot.peer_stats.live} / ${statsResponse.snapshot.peer_stats.seen}`;
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// Update or create columns in the torrent row
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updateOrCreateColumnContent(torrentRow, 'Name', largestFileName);
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updateOrCreateColumnContent(torrentRow, 'Size', `${formatBytesToGB(totalBytes)} GB`);
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updateOrCreateColumnWithProgressBar(torrentRow, 'Progress', downloadPercentage);
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updateOrCreateColumnContent(torrentRow, 'Download Speed', downloadSpeed);
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updateOrCreateColumnContent(torrentRow, 'ETA', eta);
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updateOrCreateColumnContent(torrentRow, 'Peers', peers);
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}
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// Function to update or create the content of a column in a torrent row
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function updateOrCreateColumnContent(torrentRow, human_label, value) {
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let label = human_label.toLowerCase().replace(" ", "-");
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let column = torrentRow.querySelector(`.column-${label}`);
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// If the column doesn't exist, create a new one
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if (!column) {
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column = document.createElement('div');
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column.classList.add(`column-${label}`, 'me-3', 'p-2');
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torrentRow.appendChild(column);
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}
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// Update the content of the existing or newly created column
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const contentParagraph = column.querySelector('p:last-child');
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if (contentParagraph) {
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contentParagraph.textContent = value;
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}
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else {
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column.innerHTML = `<p class="font-weight-bold">${human_label}</p><p>${value}</p>`;
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}
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}
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// Function to update or create the content of a progress bar column in a torrent row
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function updateOrCreateColumnWithProgressBar(torrentRow, label, percentage) {
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let column = torrentRow.querySelector('.column-progress');
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// If the column doesn't exist, create a new one
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if (!column) {
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column = document.createElement('div');
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column.classList.add('column-progress', 'me-3', 'p-2');
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torrentRow.appendChild(column);
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}
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// Update the value of the progress bar in the existing or newly created column
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const progressBar = column.querySelector('.progress-bar');
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const progressPercentage = column.querySelector('p:last-child');
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if (progressBar && progressPercentage) {
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progressBar.style.width = `${percentage}%`;
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progressPercentage.textContent = `${percentage.toFixed(2)}%`;
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}
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else {
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column.innerHTML = `
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<p class="font-weight-bold">${label}</p>
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<div class="progress mb-1">
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<div class="progress-bar" role="progressbar" style="width: ${percentage}%;"></div>
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</div>
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<p class="mb-1">${percentage.toFixed(2)}%</p>`;
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}
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}
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// Function to render HTML for a torrent row
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function renderTorrentRow(torrentsContainer, torrentId, detailsResponse, statsResponse) {
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// Check if the torrent row already exists
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let torrentRow = document.getElementById(`torrent-${torrentId}`);
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// If the torrent row doesn't exist, create a new one
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if (!torrentRow) {
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torrentRow = document.createElement('div');
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torrentRow.id = `torrent-${torrentId}`;
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torrentRow.classList.add('torrent-row', 'd-flex', 'flex-row', 'p-3', 'bg-light', 'rounded', 'mb-3');
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torrentsContainer.appendChild(torrentRow);
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}
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// Update columns in the torrent row
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updateTorrentRow(torrentRow, detailsResponse, statsResponse);
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return torrentRow;
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}
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// Function to create a column div
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function createColumn(label, value, columnClass) {
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const columnDiv = document.createElement('div');
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columnDiv.classList.add(columnClass, 'me-3', 'p-2');
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columnDiv.innerHTML = `<p class="font-weight-bold">${label}</p><p>${value}</p>`;
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return columnDiv;
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}
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// Function to create a column div with a progress bar
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function createColumnWithProgressBar(label, percentage) {
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const columnDiv = document.createElement('div');
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columnDiv.classList.add('column', 'me-3', 'p-2');
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columnDiv.innerHTML = `
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<p class="font-weight-bold">${label}</p>
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<div class="progress mb-1">
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<div class="progress-bar" role="progressbar" style="width: ${percentage}%;"></div>
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</div>
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<p class="mb-1">${percentage.toFixed(2)}%</p>`;
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return columnDiv;
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}
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// Function to format bytes to GB
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function formatBytesToGB(bytes) {
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const GB = bytes / (1024 * 1024 * 1024);
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return GB.toFixed(2);
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}
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// Function to get the name of the largest file in a torrent
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function getLargestFileName(torrentDetails) {
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const largestFile = torrentDetails.files.reduce((prev, current) => (prev.length > current.length) ? prev : current);
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return largestFile.name;
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}
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// Function to get the completion ETA of a torrent
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function getCompletionETA(stats) {
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if (stats.time_remaining) {
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return stats.time_remaining.human_readable;
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}
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else {
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return 'N/A';
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}
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}
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// Helper function to display API errors in an alert
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function displayApiError(error) {
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const errorAlert = document.getElementById('error-alert');
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if (errorAlert) {
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errorAlert.innerHTML = `
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<div class="alert alert-danger alert-dismissible fade show" role="alert">
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<strong>Error ${error.status}:</strong> ${error.statusText}<br>
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${error.body}
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<button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close" onclick="clearErrorAlert()"></button>
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</div>
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`;
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}
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}
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// Helper function to clear the error alert
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function clearErrorAlert() {
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const errorAlert = document.getElementById('error-alert');
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if (errorAlert) {
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errorAlert.innerHTML = ''; // Clear the content
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}
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}
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// List all torrents on page load and set up auto-refresh
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async function init() {
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try {
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await displayTorrents();
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autoRefreshTorrents(500); // Set the interval (in milliseconds), e.g., 5000 for every 5 seconds
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}
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catch (error) {
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console.error(error);
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}
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}
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// Function to refresh torrents at a specified interval
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function autoRefreshTorrents(interval) {
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setInterval(async () => {
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await displayTorrents();
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}, interval);
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}
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// Function to add a torrent from a magnet link
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async function addTorrentFromMagnet() {
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const magnetLink = prompt('Enter magnet link:');
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if (magnetLink) {
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await makeRequest('POST', '/torrents?overwrite=true', magnetLink);
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await displayTorrents(); // Refresh the torrent list after adding a new torrent
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}
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}
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// Function to handle file input change
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async function handleFileInputChange() {
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const fileInput = document.getElementById('file-input');
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const file = fileInput.files?.[0];
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if (file) {
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await makeRequest('POST', '/torrents?overwrite=true', file);
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await displayTorrents(); // Refresh the torrent list after adding a new torrent
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}
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}
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// Add event listeners for buttons
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document.getElementById('add-magnet-button')?.addEventListener('click', addTorrentFromMagnet);
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// Update the event listener for the file input button
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const fileInputButton = document.getElementById('upload-file-button');
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fileInputButton?.addEventListener('click', () => {
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const fileInput = document.getElementById('file-input');
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fileInput.click();
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});
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document.getElementById('file-input')?.addEventListener('change', handleFileInputChange);
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// Call init function on page load
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document.addEventListener('DOMContentLoaded', init);
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9
crates/librqbit/webui/dist/webui/vite.config.js
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9
crates/librqbit/webui/dist/webui/vite.config.js
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import { defineConfig } from 'vite';
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import preact from '@preact/preset-vite';
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// https://vitejs.dev/config/
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export default defineConfig({
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plugins: [preact()],
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server: {
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port: 3031
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}
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});
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