134 lines
3.5 KiB
JavaScript
134 lines
3.5 KiB
JavaScript
// MusicRoom - Core module
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// Shared state and namespace setup
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window.MusicRoom = {
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// Audio element
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audio: new Audio(),
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// WebSocket and channel state
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ws: null,
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currentChannelId: null,
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currentTrackId: null,
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currentTitle: null,
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serverTimestamp: 0,
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serverTrackDuration: 0,
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lastServerUpdate: 0,
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serverPaused: true,
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// Current track cache (for ReplayGain re-application across graph init)
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currentTrack: null,
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// Channels list
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channels: [],
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// Sync state
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wantSync: true, // User intent - do they want to be synced?
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synced: false, // Actual state - are we currently synced?
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// Volume
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preMuteVolume: 1,
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STORAGE_KEY: "blastoise_volume",
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CHANNEL_STORAGE_KEY: "blastoise_channel",
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THEME_STORAGE_KEY: "blastoise_theme",
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VISUALIZER_STORAGE_KEY: "blastoise_visualizer",
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// Playback state
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localTimestamp: 0,
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queue: [],
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currentIndex: 0,
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playbackMode: "repeat-all",
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// User state
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currentUser: null,
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serverStatus: null,
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// Library (all discovered tracks)
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library: [],
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// Caching state
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prefetchController: null,
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loadingSegments: new Set(),
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trackCaches: new Map(), // Map of filename -> Set of cached segment indices
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trackBlobs: new Map(), // Map of filename -> Blob URL for fully cached tracks
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bulkDownloadStarted: new Map(),
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cachedTracks: new Set(), // Set of track IDs that are fully cached locally
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streamOnly: false, // When true, skip bulk downloads (still cache played tracks)
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cacheLimit: 100 * 1024 * 1024, // 100MB default cache limit
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// Download metrics
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audioBytesPerSecond: 20000, // Audio bitrate estimate for range requests
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downloadSpeed: 0, // Actual network download speed
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recentDownloads: [], // Track recent downloads for speed calculation
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// Constants
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SEGMENTS: 20,
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FAST_THRESHOLD: 10 * 1024 * 1024, // 10 MB/s
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// UI update tracking (to avoid unnecessary DOM updates)
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lastProgressPct: -1,
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lastTimeCurrent: "",
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lastTimeTotal: "",
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lastBufferPct: -1,
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lastSpeedText: ""
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};
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(function() {
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const M = window.MusicRoom;
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const CHANNEL_COOKIE_MAX_AGE = 60 * 60 * 24 * 400;
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M.getCookieValue = function(name) {
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const prefix = `${name}=`;
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return document.cookie
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.split(";")
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.map(cookie => cookie.trim())
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.find(cookie => cookie.startsWith(prefix))
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?.slice(prefix.length) || null;
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};
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M.setCookieValue = function(name, value, maxAge = CHANNEL_COOKIE_MAX_AGE) {
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document.cookie = `${name}=${encodeURIComponent(value)}; Path=/; SameSite=Lax; Max-Age=${maxAge}`;
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};
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M.clearCookieValue = function(name) {
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document.cookie = `${name}=; Path=/; SameSite=Lax; Max-Age=0`;
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};
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M.getSavedChannelId = function() {
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const cookieValue = M.getCookieValue(M.CHANNEL_STORAGE_KEY);
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if (cookieValue) {
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try {
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return decodeURIComponent(cookieValue);
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} catch {
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M.clearRememberedChannel();
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}
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}
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try {
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const storedValue = localStorage.getItem(M.CHANNEL_STORAGE_KEY);
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if (storedValue) {
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M.rememberChannel(storedValue);
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return storedValue;
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}
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} catch {}
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return null;
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};
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M.rememberChannel = function(channelId) {
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if (!channelId) return;
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M.setCookieValue(M.CHANNEL_STORAGE_KEY, channelId);
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try {
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localStorage.setItem(M.CHANNEL_STORAGE_KEY, channelId);
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} catch {}
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};
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M.clearRememberedChannel = function() {
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M.clearCookieValue(M.CHANNEL_STORAGE_KEY);
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try {
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localStorage.removeItem(M.CHANNEL_STORAGE_KEY);
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} catch {}
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};
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})();
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