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Samive
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95 changed files with 1284 additions and 22591 deletions
309
web/frontend/app.js
Normal file
309
web/frontend/app.js
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const API = 'http://localhost:8000';
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const urlInput = document.getElementById('url-input');
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const clearBtn = document.getElementById('clear-btn');
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const fetchBtn = document.getElementById('fetch-btn');
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const errorMsg = document.getElementById('error-msg');
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const preview = document.getElementById('preview');
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const thumbnail = document.getElementById('thumbnail');
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const videoTitle = document.getElementById('video-title');
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const uploaderEl = document.getElementById('uploader');
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const durationEl = document.getElementById('duration');
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const formatSection = document.getElementById('format-section');
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const formatSelect = document.getElementById('format-select');
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const downloadBtn = document.getElementById('download-btn');
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const progressWrap = document.getElementById('progress-wrap');
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const progressFill = document.getElementById('progress-fill');
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const progressLabel = document.getElementById('progress-label');
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const cancelBtn = document.getElementById('cancel-btn');
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let currentFileId = null;
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let currentAbort = null;
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let currentSse = null;
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// --- Cancel ---
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cancelBtn.addEventListener('click', async (e) => {
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e.preventDefault();
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e.stopPropagation();
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// Abort the pending fetch
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if (currentAbort) { currentAbort.abort(); currentAbort = null; }
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// Close SSE
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if (currentSse) { currentSse.close(); currentSse = null; }
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// Tell backend to kill the task and clean up
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if (currentFileId) {
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fetch(`${API}/cancel/${currentFileId}`, { method: 'POST' }).catch(() => {});
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currentFileId = null;
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}
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progressWrap.style.display = 'none';
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setProgress(0, '');
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setLoading(downloadBtn, false);
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});
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// --- Reset UI ---
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function resetUI() {
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urlInput.value = '';
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clearBtn.style.display = 'none';
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errorMsg.style.display = 'none';
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preview.style.display = 'none';
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formatSection.style.display = 'none';
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downloadBtn.style.display = 'none';
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progressWrap.style.display = 'none';
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thumbnail.src = '';
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}
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window.addEventListener('pageshow', resetUI);
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// --- Helpers ---
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function showError(msg) {
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errorMsg.textContent = msg;
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errorMsg.style.display = 'block';
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}
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function hideError() { errorMsg.style.display = 'none'; }
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function setLoading(btn, loading, text) {
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btn.disabled = loading;
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btn.style.opacity = loading ? '0.6' : '1';
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btn.style.cursor = loading ? 'wait' : '';
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if (text) btn.dataset.label = btn.dataset.label || btn.textContent.trim();
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if (loading && text) {
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btn.textContent = text;
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} else if (!loading && btn.dataset.label) {
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if (btn.id === 'download-btn') {
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btn.innerHTML = `<svg width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5"><path d="M21 15v4a2 2 0 01-2 2H5a2 2 0 01-2-2v-4"/><polyline points="7 10 12 15 17 10"/><line x1="12" y1="15" x2="12" y2="3"/></svg> Download`;
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} else {
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btn.textContent = btn.dataset.label;
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}
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delete btn.dataset.label;
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}
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}
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function formatDuration(secs) {
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if (!secs) return null;
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const h = Math.floor(secs / 3600);
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const m = Math.floor((secs % 3600) / 60);
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const s = secs % 60;
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return h > 0
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? `${h}:${String(m).padStart(2,'0')}:${String(s).padStart(2,'0')}`
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: `${m}:${String(s).padStart(2,'0')}`;
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}
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function formatCount(n) {
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if (n >= 1e9) return (n / 1e9).toFixed(1) + 'B';
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if (n >= 1e6) return (n / 1e6).toFixed(1) + 'M';
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if (n >= 1e3) return (n / 1e3).toFixed(1) + 'K';
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return n.toString();
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}
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function formatBytes(bytes) {
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if (!bytes) return null;
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if (bytes >= 1e9) return (bytes / 1e9).toFixed(1) + ' GB';
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if (bytes >= 1e6) return (bytes / 1e6).toFixed(1) + ' MB';
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return (bytes / 1e3).toFixed(0) + ' KB';
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}
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function formatLabel(f) {
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const parts = [];
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const res = f.resolution || '';
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if (res && res !== 'unknown') parts.push(res);
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if (f.ext) parts.push(f.ext.toUpperCase());
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const hasVideo = f.vcodec && f.vcodec !== 'none';
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const hasAudio = f.acodec && f.acodec !== 'none';
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if (!hasVideo && hasAudio) parts.push('audio only');
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if (f.fps && hasVideo) parts.push(`${f.fps}fps`);
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const size = formatBytes(f.filesize);
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if (size) parts.push(`~${size}`);
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return parts.join(' · ') || f.format_id;
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}
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function setProgress(pct, label) {
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progressFill.style.width = pct + '%';
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progressLabel.innerHTML = label;
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}
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function formatEta(secs) {
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if (secs == null || secs < 0) return '';
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if (secs < 60) return `ETA ${secs}s`;
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const m = Math.floor(secs / 60);
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const s = secs % 60;
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return `ETA ${m}m ${s}s`;
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}
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// --- URL input ---
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urlInput.addEventListener('input', () => {
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clearBtn.style.display = urlInput.value ? 'flex' : 'none';
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});
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clearBtn.addEventListener('click', () => { resetUI(); urlInput.focus(); });
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urlInput.addEventListener('keydown', (e) => { if (e.key === 'Enter') fetchBtn.click(); });
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// --- Fetch info ---
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fetchBtn.addEventListener('click', async () => {
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const url = urlInput.value.trim();
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if (!url) { showError('Please paste a video URL first.'); return; }
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hideError();
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preview.style.display = 'none';
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formatSection.style.display = 'none';
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downloadBtn.style.display = 'none';
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progressWrap.style.display = 'none';
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setLoading(fetchBtn, true, 'Fetching…');
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try {
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const res = await fetch(`${API}/info`, {
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method: 'POST',
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headers: { 'Content-Type': 'application/json' },
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body: JSON.stringify({ url }),
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});
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const data = await res.json();
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if (!res.ok) throw new Error(data.detail || 'Failed to fetch video info.');
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renderPreview(data);
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renderFormats(data.formats || []);
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preview.style.display = 'flex';
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formatSection.style.display = 'flex';
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downloadBtn.style.display = 'flex';
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} catch (err) {
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showError(err.message);
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} finally {
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setLoading(fetchBtn, false);
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}
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});
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function renderPreview(info) {
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thumbnail.src = info.thumbnail || '';
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thumbnail.alt = info.title || 'Video thumbnail';
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thumbnail.style.display = info.thumbnail ? 'block' : 'none';
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videoTitle.textContent = info.title || 'Unknown title';
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uploaderEl.textContent = info.uploader || '';
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uploaderEl.style.display = info.uploader ? '' : 'none';
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const dur = formatDuration(info.duration);
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durationEl.textContent = dur || '';
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durationEl.style.display = dur ? '' : 'none';
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const viewsEl = document.getElementById('views');
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const likesEl = document.getElementById('likes');
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const dateEl = document.getElementById('upload-date');
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viewsEl.textContent = info.view_count ? '👁 ' + formatCount(info.view_count) : '';
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viewsEl.style.display = info.view_count ? '' : 'none';
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likesEl.textContent = info.like_count ? '👍 ' + formatCount(info.like_count) : '';
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likesEl.style.display = info.like_count ? '' : 'none';
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if (info.upload_date && info.upload_date.length === 8) {
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const d = info.upload_date;
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const formatted = new Date(`${d.slice(0,4)}-${d.slice(4,6)}-${d.slice(6,8)}`).toLocaleDateString(undefined, { year: 'numeric', month: 'short', day: 'numeric' });
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dateEl.textContent = '📅 ' + formatted;
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dateEl.style.display = '';
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} else {
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dateEl.style.display = 'none';
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}
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}
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function renderFormats(formats) {
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formatSelect.innerHTML = '';
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const sorted = [...formats].sort((a, b) =>
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(b.height || 0) - (a.height || 0) || (b.tbr || 0) - (a.tbr || 0)
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);
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const combined = sorted.filter(f => f.vcodec !== 'none' && f.acodec !== 'none');
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const videoOnly = sorted.filter(f => f.vcodec !== 'none' && f.acodec === 'none');
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const audioOnly = sorted.filter(f => f.vcodec === 'none' && f.acodec !== 'none');
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const addGroup = (label, items) => {
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if (!items.length) return;
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const group = document.createElement('optgroup');
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group.label = label;
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items.forEach(f => {
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const opt = document.createElement('option');
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opt.value = f.format_id;
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opt.textContent = formatLabel(f);
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group.appendChild(opt);
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});
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formatSelect.appendChild(group);
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};
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if ((videoOnly[0]?.height || 0) >= (combined[0]?.height || 0)) {
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addGroup('Video only', videoOnly);
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addGroup('Video + Audio', combined);
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} else {
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addGroup('Video + Audio', combined);
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addGroup('Video only', videoOnly);
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}
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addGroup('Audio only', audioOnly);
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if (sorted.length) formatSelect.value = sorted[0].format_id;
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}
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// --- Download ---
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downloadBtn.addEventListener('click', async () => {
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const url = urlInput.value.trim();
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if (!url) return;
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hideError();
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setLoading(downloadBtn, true, 'Downloading…');
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progressWrap.style.display = 'block';
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setProgress(0, '<span class="meta">Starting…</span>');
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const fileId = crypto.randomUUID();
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currentFileId = fileId;
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// SSE for live progress
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const sse = new EventSource(`${API}/progress/${fileId}`);
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currentSse = sse;
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sse.onmessage = (e) => {
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const d = JSON.parse(e.data);
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if (d.status === 'downloading') {
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const pct = d.percent || 0;
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const eta = d.eta != null ? formatEta(d.eta) : '';
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const speed = d.speed != null ? `${d.speed} MB/s` : '';
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const meta = [speed, eta].filter(Boolean).join(' · ');
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setProgress(pct, `<span class="pct">${pct}%</span>${meta ? ` <span class="meta">${meta}</span>` : ''}`);
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} else if (d.status === 'finished') {
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setProgress(100, '<span class="pct">100%</span> <span class="meta">Processing…</span>');
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} else if (d.status === 'cancelled') {
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sse.close();
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} else if (d.status === 'error') {
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sse.close();
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showError(d.error || 'Download failed.');
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progressWrap.style.display = 'none';
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setLoading(downloadBtn, false);
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}
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};
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sse.onerror = () => sse.close();
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// AbortController so cancel can kill the fetch
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const abort = new AbortController();
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currentAbort = abort;
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try {
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const res = await fetch(`${API}/download`, {
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method: 'POST',
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headers: { 'Content-Type': 'application/json' },
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body: JSON.stringify({ url, format_id: formatSelect.value, file_id: fileId }),
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signal: abort.signal,
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});
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sse.close();
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currentSse = null;
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currentAbort = null;
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if (!res.ok) {
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const data = await res.json().catch(() => ({ detail: 'Download failed.' }));
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throw new Error(data.detail || 'Download failed.');
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}
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// Only trigger file download if not cancelled
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if (currentFileId === fileId) {
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setProgress(100, '<span class="pct">✓</span> <span class="meta">Done — saving to your downloads</span>');
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// Open in new tab so current page never navigates away
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window.open(`${API}/file/${fileId}`, '_blank');
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setTimeout(() => { progressWrap.style.display = 'none'; }, 2500);
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}
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} catch (err) {
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sse.close();
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currentSse = null;
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currentAbort = null;
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if (err.name !== 'AbortError') {
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showError(err.message);
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progressWrap.style.display = 'none';
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}
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} finally {
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if (currentFileId === fileId) currentFileId = null;
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setLoading(downloadBtn, false);
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}
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});
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