319 lines
12 KiB
JavaScript
319 lines
12 KiB
JavaScript
document.addEventListener('DOMContentLoaded', () => {
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const videoListEl = document.getElementById('video-list');
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const loadingSpinner = document.getElementById('loading-spinner');
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const refreshBtn = document.getElementById('refresh-btn');
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const codecSelect = document.getElementById('codec-select');
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const encoderSelect = document.getElementById('encoder-select');
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const playerOverlay = document.getElementById('player-overlay');
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const transcodingOverlay = document.getElementById('transcoding-overlay');
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const videoPlayer = document.getElementById('video-player');
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const nowPlaying = document.getElementById('now-playing');
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const currentVideoTitle = document.getElementById('current-video-title');
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const playBtn = document.getElementById('play-btn');
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const progressInfo = document.getElementById('progress-info');
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const progressText = document.getElementById('progress-text');
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const progressFill = document.getElementById('progress-fill');
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let currentPollInterval = null;
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let ws = null;
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let wsConnected = false;
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let subscribedKey = null;
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let currentVideoKey = null;
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const sendWsMessage = (message) => {
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if (ws && ws.readyState === WebSocket.OPEN) {
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ws.send(JSON.stringify(message));
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}
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};
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const subscribeToKey = (key) => {
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subscribedKey = key;
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if (wsConnected) {
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sendWsMessage({ type: 'subscribe', key });
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}
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};
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const handleWsMessage = (event) => {
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try {
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const message = JSON.parse(event.data);
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if (message.type === 'progress' && message.key === currentVideoKey) {
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setProgress(message.progress);
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}
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if (message.type === 'ready' && message.key === currentVideoKey) {
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setProgress({ status: 'Ready to play', percent: 100, details: 'Ready to play' });
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playMp4Stream(message.mp4Url);
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}
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} catch (error) {
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console.error('WebSocket message parse error:', error);
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}
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};
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const connectWebSocket = () => {
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const protocol = window.location.protocol === 'https:' ? 'wss' : 'ws';
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ws = new WebSocket(`${protocol}://${window.location.host}`);
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ws.addEventListener('open', () => {
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wsConnected = true;
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if (subscribedKey) {
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sendWsMessage({ type: 'subscribe', key: subscribedKey });
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}
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});
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ws.addEventListener('message', handleWsMessage);
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ws.addEventListener('close', () => {
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wsConnected = false;
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setTimeout(connectWebSocket, 2000);
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});
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ws.addEventListener('error', (error) => {
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console.error('WebSocket error:', error);
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wsConnected = false;
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});
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};
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const setProgress = (progress) => {
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if (!progressInfo || !progressText || !progressFill) return;
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const percent = Math.min(Math.max(Math.round(progress?.percent || 0), 0), 100);
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progressInfo.classList.remove('hidden');
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progressText.textContent = `${progress?.details || progress?.status || 'Transcoding...'} ${percent ? `${percent}%` : ''}`.trim();
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progressFill.style.width = `${percent}%`;
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};
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const resetProgress = () => {
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if (!progressInfo || !progressText || !progressFill) return;
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progressInfo.classList.add('hidden');
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progressText.textContent = '';
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progressFill.style.width = '0%';
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};
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if (playBtn) {
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playBtn.addEventListener('click', () => {
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videoPlayer.play().catch(e => console.log('Play blocked:', e));
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playBtn.classList.add('hidden');
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});
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}
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// Fetch list of videos from the backend
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const fetchVideos = async () => {
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videoListEl.classList.add('hidden');
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loadingSpinner.classList.remove('hidden');
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videoListEl.innerHTML = '';
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try {
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const res = await fetch('/api/videos');
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if (!res.ok) throw new Error('Failed to fetch videos. Check S3 Config.');
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const data = await res.json();
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loadingSpinner.classList.add('hidden');
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videoListEl.classList.remove('hidden');
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if (data.videos.length === 0) {
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videoListEl.innerHTML = '<p style="color: var(--text-secondary); text-align: center; padding: 2rem;">No videos found.</p>';
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return;
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}
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// Build a tree structure from S3 keys, preserving original object storage directories
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const tree = {};
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data.videos.forEach(key => {
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const parts = key.split('/');
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let current = tree;
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parts.forEach((part, index) => {
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if (!current[part]) {
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current[part] = {};
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}
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if (index === parts.length - 1) {
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current[part].__file = key;
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}
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current = current[part];
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});
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});
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const createFileItem = (name, key) => {
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const li = document.createElement('li');
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li.className = 'video-item file-item';
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const ext = name.split('.').pop().toUpperCase();
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li.innerHTML = `
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<div class="video-icon">
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<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="m22 8-6 4 6 4V8Z"/><rect width="14" height="12" x="2" y="6" rx="2" ry="2"/></svg>
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</div>
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<div class="video-info">
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<div class="video-title" title="${key}">${name}</div>
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<div class="video-meta">Video / ${ext}</div>
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</div>
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`;
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li.addEventListener('click', (e) => {
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e.stopPropagation();
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selectVideo(key, li);
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});
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return li;
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};
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// Recursive function to render the tree
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const renderTree = (node, container) => {
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for (const [name, value] of Object.entries(node)) {
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if (name === '__file') continue;
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const childKeys = Object.keys(value).filter(key => key !== '__file');
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const hasChildren = childKeys.length > 0;
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const isFile = typeof value.__file === 'string';
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if (hasChildren) {
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const li = document.createElement('li');
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li.className = 'folder-item';
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const folderHeader = document.createElement('div');
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folderHeader.className = 'folder-header';
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folderHeader.innerHTML = `
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<div class="folder-icon">
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<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M22 19a2 2 0 0 1-2 2H4a2 2 0 0 1-2-2V5a2 2 0 0 1 2-2h5l2 3h9a2 2 0 0 1 2 2z"/></svg>
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</div>
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<div class="folder-title" title="${name}">${name}</div>
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<div class="folder-toggle">
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<svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="chevron"><path d="m9 18 6-6-6-6"/></svg>
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</div>
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`;
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const subListContainer = document.createElement('ul');
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subListContainer.className = 'sub-list hidden';
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folderHeader.addEventListener('click', (e) => {
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e.stopPropagation();
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li.classList.toggle('open');
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subListContainer.classList.toggle('hidden');
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});
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li.appendChild(folderHeader);
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if (isFile) {
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subListContainer.appendChild(createFileItem(name, value.__file));
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}
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renderTree(value, subListContainer);
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li.appendChild(subListContainer);
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container.appendChild(li);
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} else if (isFile) {
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container.appendChild(createFileItem(name, value.__file));
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}
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}
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};
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renderTree(tree, videoListEl);
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} catch (err) {
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console.error(err);
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loadingSpinner.innerHTML = `<p style="color: #ef4444;">Error: ${err.message}</p>`;
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}
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};
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// Handle video selection and trigger transcode
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const selectVideo = async (key, listItemNode) => {
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// Update UI
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document.querySelectorAll('.video-item').forEach(n => n.classList.remove('active'));
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listItemNode.classList.add('active');
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// Reset player UI
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stopPolling();
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playerOverlay.classList.add('hidden');
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videoPlayer.classList.add('hidden');
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videoPlayer.pause();
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if (playBtn) {
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playBtn.disabled = true;
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playBtn.textContent = '等待转码完成';
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playBtn.classList.remove('hidden');
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}
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resetProgress();
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currentVideoKey = key;
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subscribeToKey(key);
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nowPlaying.classList.remove('hidden');
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currentVideoTitle.textContent = key.split('/').pop();
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transcodingOverlay.classList.remove('hidden');
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setProgress({ status: 'Starting transcoding...', percent: 0, details: 'Starting transcoding...' });
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try {
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const codec = codecSelect?.value || 'h264';
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const encoder = encoderSelect?.value || 'software';
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const res = await fetch('/api/transcode', {
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method: 'POST',
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headers: { 'Content-Type': 'application/json' },
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body: JSON.stringify({ key, codec, encoder })
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});
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const data = await res.json();
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if (data.error) throw new Error(data.error);
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if (!wsConnected) {
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pollForMp4Ready(key, data.mp4Url);
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}
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} catch (err) {
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console.error(err);
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transcodingOverlay.innerHTML = `<p style="color: #ef4444;">Transcode Failed: ${err.message}</p>`;
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}
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};
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// Poll the backend to check if the generated MP4 file is accessible
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const pollForMp4Ready = (key, mp4Url) => {
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let attempts = 0;
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const maxAttempts = 120; // 60 seconds max wait for first segment
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const pollIntervalMs = 500;
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currentPollInterval = setInterval(async () => {
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attempts++;
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try {
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const res = await fetch(`/api/status?key=${encodeURIComponent(key)}`);
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const data = await res.json();
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if (data.progress) {
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setProgress(data.progress);
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}
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if (data.ready) {
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stopPolling();
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setProgress({ status: 'Ready to play', percent: 100, details: 'Ready to play' });
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playMp4Stream(data.mp4Url);
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} else if (attempts >= maxAttempts) {
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stopPolling();
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transcodingOverlay.innerHTML = `<p style="color: #ef4444;">Timeout waiting for MP4 file.</p>`;
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}
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} catch (err) {
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console.error("Poll Error:", err);
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}
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}, pollIntervalMs);
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};
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const stopPolling = () => {
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if (currentPollInterval) {
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clearInterval(currentPollInterval);
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currentPollInterval = null;
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}
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};
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// Initialize MP4 Player
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const playMp4Stream = (url) => {
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transcodingOverlay.classList.add('hidden');
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videoPlayer.classList.remove('hidden');
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playBtn.classList.add('hidden');
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resetProgress();
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videoPlayer.src = url;
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videoPlayer.load();
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videoPlayer.addEventListener('loadedmetadata', () => {
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if (playBtn) {
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playBtn.disabled = false;
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playBtn.textContent = 'Play';
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playBtn.classList.remove('hidden');
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}
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}, { once: true });
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};
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// Bind events
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refreshBtn.addEventListener('click', fetchVideos);
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// Connect WebSocket and initial load
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connectWebSocket();
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fetchVideos();
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});
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