357 lines
11 KiB
JavaScript
357 lines
11 KiB
JavaScript
// MusicRoom - Channel Sync module
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// WebSocket connection and server synchronization
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(function() {
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const M = window.MusicRoom;
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// Load available channels and connect to saved or default
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M.loadChannels = async function() {
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try {
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const res = await fetch("/api/channels");
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const channels = await res.json();
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if (channels.length === 0) {
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M.setTrackTitle("No channels available");
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return;
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}
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M.channels = channels;
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M.renderChannelList();
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// Try saved channel first, fall back to default
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const savedChannelId = localStorage.getItem("musicroom_channel");
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const savedChannel = savedChannelId && channels.find(c => c.id === savedChannelId);
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const targetChannel = savedChannel || channels.find(c => c.isDefault) || channels[0];
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M.connectChannel(targetChannel.id);
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} catch (e) {
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M.setTrackTitle("Server unavailable");
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M.$("#status").textContent = "Local (offline)";
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M.synced = false;
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M.updateUI();
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}
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};
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// Create a new channel
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M.createChannel = async function(name, description) {
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try {
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const res = await fetch("/api/channels", {
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method: "POST",
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headers: { "Content-Type": "application/json" },
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body: JSON.stringify({ name, description })
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});
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if (!res.ok) {
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const err = await res.json();
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M.showToast(err.error || "Failed to create channel");
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return null;
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}
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const channel = await res.json();
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M.showToast(`Channel "${channel.name}" created`);
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return channel;
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} catch (e) {
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M.showToast("Failed to create channel");
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return null;
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}
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};
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// New channel creation with slideout input
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M.createNewChannel = async function() {
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const header = M.$("#channels-panel .panel-header");
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const btn = M.$("#btn-new-channel");
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// Already in edit mode?
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if (header.querySelector(".new-channel-input")) return;
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// Hide button, show input
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btn.style.display = "none";
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const input = document.createElement("input");
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input.type = "text";
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input.className = "new-channel-input";
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input.placeholder = "Channel name...";
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const submit = document.createElement("button");
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submit.className = "btn-submit-channel";
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submit.textContent = "›";
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header.appendChild(input);
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header.appendChild(submit);
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input.focus();
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const cleanup = () => {
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input.remove();
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submit.remove();
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btn.style.display = "";
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};
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const doCreate = async () => {
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const name = input.value.trim();
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if (!name) {
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cleanup();
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return;
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}
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try {
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await M.createChannel(name);
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} catch (e) {
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M.showToast("Failed to create channel");
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}
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cleanup();
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};
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submit.onclick = doCreate;
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input.onkeydown = (e) => {
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if (e.key === "Enter") doCreate();
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if (e.key === "Escape") cleanup();
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};
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input.onblur = (e) => {
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if (e.relatedTarget !== submit) cleanup();
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};
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};
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// New channel button handler
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document.addEventListener("DOMContentLoaded", () => {
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const btn = M.$("#btn-new-channel");
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if (btn) {
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btn.onclick = () => M.createNewChannel();
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}
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});
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// Render channel list in sidebar
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M.renderChannelList = function() {
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const container = M.$("#channels-list");
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if (!container) return;
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container.innerHTML = "";
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for (const ch of M.channels || []) {
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const div = document.createElement("div");
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div.className = "channel-item" + (ch.id === M.currentChannelId ? " active" : "");
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const listeners = ch.listeners || [];
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// Count occurrences of each user
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const counts = {};
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for (const name of listeners) {
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counts[name] = (counts[name] || 0) + 1;
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}
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const listenersHtml = Object.entries(counts).map(([name, count]) =>
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`<div class="listener">${name}${count > 1 ? ` <span class="listener-mult">x${count}</span>` : ""}</div>`
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).join("");
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div.innerHTML = `
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<div class="channel-header">
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<span class="channel-name">${ch.name}</span>
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<span class="listener-count">${ch.listenerCount}</span>
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</div>
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<div class="channel-listeners">${listenersHtml}</div>
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`;
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div.querySelector(".channel-header").onclick = () => M.switchChannel(ch.id);
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container.appendChild(div);
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}
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};
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// Switch to a different channel via WebSocket
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M.switchChannel = function(channelId) {
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if (channelId === M.currentChannelId) return;
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if (M.ws && M.ws.readyState === WebSocket.OPEN) {
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M.ws.send(JSON.stringify({ action: "switch", channelId }));
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}
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};
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// Connect to a channel via WebSocket
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M.connectChannel = function(id) {
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if (M.ws) {
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const oldWs = M.ws;
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M.ws = null;
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oldWs.onclose = null;
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oldWs.close();
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}
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M.currentChannelId = id;
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localStorage.setItem("musicroom_channel", id);
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const proto = location.protocol === "https:" ? "wss:" : "ws:";
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M.ws = new WebSocket(proto + "//" + location.host + "/api/channels/" + id + "/ws");
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M.ws.onmessage = (e) => {
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const data = JSON.parse(e.data);
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// Handle channel list updates
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if (data.type === "channel_list") {
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console.log("[WS] Received channel_list:", data.channels.length, "channels");
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M.channels = data.channels;
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M.renderChannelList();
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return;
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}
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// Handle channel switch confirmation
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if (data.type === "switched") {
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M.currentChannelId = data.channelId;
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M.renderChannelList();
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return;
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}
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// Handle kick command
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if (data.type === "kick") {
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M.showToast("Disconnected: " + (data.reason || "Kicked by another session"));
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M.wantSync = false;
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M.synced = false;
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M.audio.pause();
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if (M.ws) {
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const oldWs = M.ws;
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M.ws = null;
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oldWs.onclose = null;
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oldWs.close();
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}
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M.updateUI();
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return;
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}
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// Handle library updates
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if (data.type === "track_added") {
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M.showToast(`"${data.track.title}" is now available`);
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if (data.library) {
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M.library = data.library;
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M.renderLibrary();
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}
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return;
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}
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if (data.type === "track_removed") {
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M.showToast(`"${data.track.title}" was removed`);
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if (data.library) {
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M.library = data.library;
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M.renderLibrary();
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}
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return;
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}
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// Handle scan progress
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if (data.type === "scan_progress") {
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const el = M.$("#scan-progress");
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const wasScanning = !el.classList.contains("complete") && !el.classList.contains("hidden");
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if (data.scanning) {
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el.innerHTML = `<span class="spinner"></span>Scanning: ${data.processed}/${data.total} files`;
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el.classList.remove("hidden");
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el.classList.remove("complete");
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} else {
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// Show track count when not scanning
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const count = M.library.length;
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el.innerHTML = `${count} song${count !== 1 ? 's' : ''} in library`;
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el.classList.remove("hidden");
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el.classList.add("complete");
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// Show toast if scan just finished
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if (wasScanning) {
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M.showToast("Scanning complete!");
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}
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}
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return;
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}
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// Handle server-sent toasts
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if (data.type === "toast") {
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M.showToast(data.message, data.toastType || "info");
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return;
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}
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// Normal channel state update
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M.handleUpdate(data);
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};
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M.ws.onclose = () => {
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M.synced = false;
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M.ws = null;
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M.$("#sync-indicator").classList.add("disconnected");
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M.updateUI();
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// Auto-reconnect if user wants to be synced
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if (M.wantSync) {
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setTimeout(() => M.connectChannel(id), 3000);
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}
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};
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M.ws.onopen = () => {
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M.synced = true;
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M.$("#sync-indicator").classList.remove("disconnected");
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M.updateUI();
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};
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};
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// Handle channel state update from server
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M.handleUpdate = async function(data) {
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console.log("[WS] State update:", {
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track: data.track?.title,
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timestamp: data.currentTimestamp?.toFixed(1),
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paused: data.paused,
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currentIndex: data.currentIndex
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});
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if (!data.track) {
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M.setTrackTitle("No tracks");
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return;
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}
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M.$("#channel-name").textContent = data.channelName || "";
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M.serverTimestamp = data.currentTimestamp;
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M.serverTrackDuration = data.track.duration;
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M.lastServerUpdate = Date.now();
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const wasServerPaused = M.serverPaused;
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M.serverPaused = data.paused ?? true;
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// Update playback mode if provided
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if (data.playbackMode && data.playbackMode !== M.playbackMode) {
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M.playbackMode = data.playbackMode;
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if (M.updateModeButton) M.updateModeButton();
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}
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// Update queue if provided
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if (data.queue) {
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M.queue = data.queue;
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M.currentIndex = data.currentIndex ?? 0;
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M.renderQueue();
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} else if (data.currentIndex !== undefined && data.currentIndex !== M.currentIndex) {
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M.currentIndex = data.currentIndex;
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M.renderQueue();
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}
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// Cache track info for local mode - use track.id (content hash) as the identifier
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const trackId = data.track.id || data.track.filename; // Fallback for compatibility
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const isNewTrack = trackId !== M.currentTrackId;
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if (isNewTrack) {
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M.currentTrackId = trackId;
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M.setTrackTitle(data.track.title);
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M.loadingSegments.clear();
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// Debug: log cache state for this track
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const trackCache = M.trackCaches.get(trackId);
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console.log("[Playback] Starting track:", data.track.title, {
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trackId: trackId,
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segments: trackCache ? [...trackCache] : [],
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segmentCount: trackCache ? trackCache.size : 0,
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inCachedTracks: M.cachedTracks.has(trackId),
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bulkStarted: M.bulkDownloadStarted.get(trackId) || false,
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hasBlobUrl: M.trackBlobs.has(trackId)
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});
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// Check if this track already has all segments cached
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M.checkAndCacheComplete(trackId);
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}
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if (M.synced) {
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if (!M.serverPaused) {
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// Server is playing - ensure we're playing and synced
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if (isNewTrack || !M.audio.src) {
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// Try cache first
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const cachedUrl = await M.loadTrackBlob(M.currentTrackId);
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M.audio.src = cachedUrl || M.getTrackUrl(M.currentTrackId);
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M.audio.currentTime = data.currentTimestamp;
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M.audio.play().catch(() => {});
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} else if (M.audio.paused) {
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M.audio.currentTime = data.currentTimestamp;
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M.audio.play().catch(() => {});
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} else {
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// Check drift
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const drift = Math.abs(M.audio.currentTime - data.currentTimestamp);
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if (drift >= 2) {
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console.log("[Sync] Correcting drift:", drift.toFixed(1), "s");
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M.audio.currentTime = data.currentTimestamp;
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}
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}
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} else {
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// Server is paused - ensure we're paused too
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if (!M.audio.paused) {
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M.audio.pause();
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}
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// Sync to paused position
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if (isNewTrack || !M.audio.src) {
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const cachedUrl = await M.loadTrackBlob(M.currentTrackId);
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M.audio.src = cachedUrl || M.getTrackUrl(M.currentTrackId);
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M.audio.currentTime = data.currentTimestamp;
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}
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}
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}
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M.updateUI();
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};
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})();
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