Nothing works, I dont understand modern javascript
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Igor Katson
parent
72666e9258
commit
d5cf369a75
139 changed files with 10138 additions and 55 deletions
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@ -1,354 +0,0 @@
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// Define API URL and base path
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const apiUrl = window.origin == 'null' ? 'http://localhost:3030' : '';
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// Interface for the Torrent API response
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interface Torrent {
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id: number;
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info_hash: string;
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}
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// Interface for the Torrent Details API response
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interface TorrentDetails {
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files: {
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name: string;
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length: number;
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included: boolean;
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}[];
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}
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// Interface for the Torrent Stats API response
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interface TorrentStats {
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snapshot: {
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have_bytes: number;
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downloaded_and_checked_bytes: number;
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downloaded_and_checked_pieces: number;
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fetched_bytes: number;
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uploaded_bytes: number;
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initially_needed_bytes: number;
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remaining_bytes: number;
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total_bytes: number;
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total_piece_download_ms: number;
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peer_stats: {
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queued: number;
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connecting: number;
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live: number;
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seen: number;
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dead: number;
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not_needed: number;
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};
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};
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average_piece_download_time: {
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secs: number;
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nanos: number;
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};
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download_speed: {
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mbps: number;
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human_readable: string;
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};
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all_time_download_speed: {
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mbps: number;
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human_readable: string;
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};
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time_remaining: {
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human_readable: string;
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} | null;
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}
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// Interface for the API error response
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interface ApiError {
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status: number;
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statusText: string;
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body: string;
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}
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// Helper function for making API requests (async/await)
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async function makeRequest(method: string, path: string, data?: any): Promise<any> {
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const url = apiUrl + path;
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const options: RequestInit = {
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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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} 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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} 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: ${error.message}`);
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}
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}
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// Function to get detailed information about a torrent (async/await)
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async function getTorrentDetails(index: number): Promise<TorrentDetails> {
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return makeRequest('GET', `/torrents/${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: number): Promise<TorrentStats> {
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return makeRequest('GET', `/torrents/${index}/stats`);
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}
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// Function to update HTML for a torrent row
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function updateTorrentRow(torrentRow: HTMLDivElement, detailsResponse: TorrentDetails, statsResponse: TorrentStats) {
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// Calculate download percentage
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const totalBytes = statsResponse.snapshot.total_bytes;
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const downloadedBytes = statsResponse.snapshot.have_bytes;
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const downloadPercentage = (downloadedBytes / totalBytes) * 100;
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// Display basic information about the torrent
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const largestFileName = getLargestFileName(detailsResponse);
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const downloadSpeed = statsResponse.download_speed.human_readable;
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const eta = getCompletionETA(statsResponse);
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const peers = `${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: HTMLDivElement, human_label: string, value: string) {
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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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} 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: HTMLDivElement, label: string, percentage: number) {
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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') as HTMLElement;
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const progressPercentage = column.querySelector('p:last-child') as HTMLElement;
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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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} 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: HTMLElement, torrentId: number, detailsResponse: TorrentDetails, statsResponse: TorrentStats) {
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// Check if the torrent row already exists
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let torrentRow = document.getElementById(`torrent-${torrentId}`) as HTMLDivElement;
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// If the torrent row doesn't exist, create a new one
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if (!torrentRow) {
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torrentRow = document.createElement('div');
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torrentRow.id = `torrent-${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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// Display function for listing all torrents with concise information (async/await)
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async function displayTorrents() {
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try {
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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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// Array to hold promises for torrent details and stats
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const promises = torrents.map(async (torrent: { id: number; }) => {
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const detailsPromise = getTorrentDetails(torrent.id);
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const statsPromise = getTorrentStats(torrent.id);
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const [detailsResponse, statsResponse] = await Promise.all([detailsPromise, statsPromise]);
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// Render HTML for the torrent row
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renderTorrentRow(torrentsContainer, torrent.id, detailsResponse, statsResponse);
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});
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// Wait for all promises to resolve
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await Promise.all(promises);
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} catch (error) {
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console.error(error);
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// Handle errors as needed
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}
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}
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// Function to create a column div
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function createColumn(label: string, value: string, columnClass: string): HTMLDivElement {
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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: string, percentage: number): HTMLDivElement {
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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: number): string {
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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: TorrentDetails): string {
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const largestFile = torrentDetails.files.reduce((prev: any, current: any) => (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: TorrentStats): string {
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if (stats.time_remaining) {
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return stats.time_remaining.human_readable;
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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: ApiError): void {
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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(): void {
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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(): Promise<void> {
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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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} 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: number): void {
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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(): Promise<void> {
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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(): Promise<void> {
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const fileInput = document.getElementById('file-input') as HTMLInputElement;
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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') as HTMLInputElement;
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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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