ytdlp upgrade

public/channelSync.js

@@ -280,6 +280,13 @@
         M.showToast(data.message, data.toastType || "info");
         return;
       }
+      // Handle fetch progress from ytdlp
+      if (data.type && data.type.startsWith("fetch_")) {
+        if (M.handleFetchProgress) {
+          M.handleFetchProgress(data);
+        }
+        return;
+      }
       // Normal channel state update
       M.handleUpdate(data);
     };

public/init.js

@@ -59,8 +59,18 @@
     initPanelTabs();
   });
   
+  // Update UI based on server status
+  function updateFeatureVisibility() {
+    const fetchBtn = M.$("#btn-fetch-url");
+    if (fetchBtn) {
+      const ytdlpEnabled = M.serverStatus?.ytdlp?.enabled && M.serverStatus?.ytdlp?.available;
+      fetchBtn.style.display = ytdlpEnabled ? "" : "none";
+    }
+  }
+  
   // Initialize the application
   Promise.all([initStorage(), loadServerStatus()]).then(async () => {
+    updateFeatureVisibility();
     await M.loadLibrary();
     await M.loadCurrentUser();
     if (M.currentUser) {

public/upload.js

@@ -89,9 +89,7 @@
           return;
         }
         closeFetchDialog();
-        
-        // Create a task for this fetch
-        const task = createTask(`Fetching: ${url.substring(0, 50)}...`);
+        M.showToast("Checking URL...");
         
         try {
           const res = await fetch("/api/fetch", {
@@ -102,15 +100,39 @@
           
           if (res.ok) {
             const data = await res.json();
-            task.setComplete();
-            M.showToast(data.message || "Fetch started");
+            
+            if (data.type === "playlist") {
+              // Ask user to confirm playlist download
+              const confirmed = confirm(`Download playlist "${data.title}" with ${data.count} items?\n\nItems will be downloaded slowly (one every ~3 minutes) to avoid overloading the server.`);
+              
+              if (confirmed) {
+                // Confirm playlist download
+                const confirmRes = await fetch("/api/fetch/confirm", {
+                  method: "POST",
+                  headers: { "Content-Type": "application/json" },
+                  body: JSON.stringify({ items: data.items })
+                });
+                
+                if (confirmRes.ok) {
+                  const confirmData = await confirmRes.json();
+                  M.showToast(confirmData.message);
+                  // Tasks will be created by WebSocket progress messages
+                } else {
+                  const err = await confirmRes.json().catch(() => ({}));
+                  M.showToast(err.error || "Failed to queue playlist", "error");
+                }
+              }
+            } else if (data.type === "single") {
+              M.showToast(`Queued: ${data.title}`);
+              // Task will be created by WebSocket progress messages
+            } else {
+              M.showToast(data.message || "Fetch started");
+            }
           } else {
             const err = await res.json().catch(() => ({}));
-            task.setError(err.error || "Failed");
             M.showToast(err.error || "Fetch failed", "error");
           }
         } catch (e) {
-          task.setError("Error");
           M.showToast("Fetch failed", "error");
         }
       };
@@ -175,12 +197,36 @@
     };
     
     // Task management
+    const fetchTasks = new Map(); // Map<id, taskHandle>
+    
     function updateTasksEmpty() {
       const hasTasks = tasksList.children.length > 0;
       tasksEmpty.classList.toggle("hidden", hasTasks);
     }
     
-    function createTask(filename) {
+    // Handle WebSocket fetch progress messages
+    M.handleFetchProgress = function(data) {
+      let task = fetchTasks.get(data.id);
+      
+      // Create task if we don't have one for this id
+      if (!task && data.status !== "complete" && data.status !== "error") {
+        task = createTask(data.title || "Downloading...", data.id);
+      }
+      
+      if (!task) return;
+      
+      if (data.status === "downloading" || data.status === "queued") {
+        task.setProgress(data.progress || 0);
+      } else if (data.status === "complete") {
+        task.setComplete();
+        fetchTasks.delete(data.id);
+      } else if (data.status === "error") {
+        task.setError(data.error || "Failed");
+        fetchTasks.delete(data.id);
+      }
+    };
+    
+    function createTask(filename, fetchId) {
       const task = document.createElement("div");
       task.className = "task-item";
       task.innerHTML = `
@@ -197,7 +243,7 @@
       const tasksTab = document.querySelector('.panel-tab[data-tab="tasks"]');
       if (tasksTab) tasksTab.click();
       
-      return {
+      const taskHandle = {
         setProgress(percent) {
           task.querySelector(".task-progress").textContent = `${Math.round(percent)}%`;
           task.querySelector(".task-bar").style.width = `${percent}%`;
@@ -222,6 +268,13 @@
           }, 5000);
         }
       };
+      
+      // Store fetch tasks for WebSocket updates
+      if (fetchId) {
+        fetchTasks.set(fetchId, taskHandle);
+      }
+      
+      return taskHandle;
     }
     
     function uploadFile(file) {

server.ts

@@ -33,16 +33,37 @@ import {
   getClientInfo,
 } from "./auth";
 import { Library } from "./library";
-import { createFetchRequest, getUserRequests, startDownload } from "./ytdlp";
+import { 
+  initYtdlp, 
+  getStatus as getYtdlpStatus, 
+  isAvailable as isYtdlpAvailable,
+  checkUrl,
+  addToFastQueue,
+  addToSlowQueue,
+  getUserQueues,
+  setProgressCallback,
+  type QueueItem
+} from "./ytdlp";
 
 // Load config
+interface YtdlpConfig {
+  enabled: boolean;
+  command: string;
+  ffmpegCommand: string;
+  updateCommand: string | null;
+  fastQueueConcurrent: number;
+  slowQueueInterval: number;
+  allowPlaylists: boolean;
+  autoUpdate: boolean;
+  updateCheckInterval: number;
+}
+
 interface Config {
   port: number;
   musicDir: string;
   allowGuests: boolean;
-  defaultPermissions: {
-    channel?: string;
-  };
+  defaultPermissions: string[];
+  ytdlp?: YtdlpConfig;
 }
 
 const CONFIG_PATH = join(import.meta.dir, "config.json");
@@ -51,7 +72,18 @@ const DEFAULT_CONFIG: Config = {
   port: 3001,
   musicDir: "./music",
   allowGuests: true,
-  defaultPermissions: ["listen", "control"]
+  defaultPermissions: ["listen", "control"],
+  ytdlp: {
+    enabled: false,
+    command: "yt-dlp",
+    ffmpegCommand: "ffmpeg",
+    updateCommand: "yt-dlp -U",
+    fastQueueConcurrent: 2,
+    slowQueueInterval: 180,
+    allowPlaylists: true,
+    autoUpdate: true,
+    updateCheckInterval: 86400
+  }
 };
 
 // Create default config if missing
@@ -70,6 +102,18 @@ const PUBLIC_DIR = join(import.meta.dir, "public");
 
 console.log(`Config loaded: port=${config.port}, musicDir=${MUSIC_DIR}, allowGuests=${config.allowGuests}`);
 
+// Initialize yt-dlp if configured
+const ytdlpConfig = config.ytdlp || DEFAULT_CONFIG.ytdlp!;
+const ytdlpStatus = await initYtdlp({
+  enabled: ytdlpConfig.enabled,
+  command: ytdlpConfig.command,
+  ffmpegCommand: ytdlpConfig.ffmpegCommand,
+  musicDir: MUSIC_DIR,
+  fastQueueConcurrent: ytdlpConfig.fastQueueConcurrent,
+  slowQueueInterval: ytdlpConfig.slowQueueInterval,
+  allowPlaylists: ytdlpConfig.allowPlaylists
+});
+
 // Initialize library
 const library = new Library(MUSIC_DIR);
 
@@ -245,6 +289,30 @@ function broadcastToAll(message: object) {
   console.log(`[Broadcast] Sent to ${clientCount} clients`);
 }
 
+// Send message to specific user's connections
+function sendToUser(userId: number, message: object) {
+  const connections = userConnections.get(userId);
+  if (connections) {
+    const data = JSON.stringify(message);
+    for (const ws of connections) {
+      ws.send(data);
+    }
+  }
+}
+
+// Set up ytdlp progress callback
+setProgressCallback((item) => {
+  sendToUser(item.userId, {
+    type: `fetch_${item.status === "downloading" ? "progress" : item.status}`,
+    id: item.id,
+    title: item.title,
+    status: item.status,
+    progress: item.progress,
+    queueType: item.queueType,
+    error: item.error
+  });
+});
+
 // Broadcast channel list to all clients
 function broadcastChannelList() {
   const list = [...channels.values()].map(c => c.getListInfo());
@@ -375,6 +443,7 @@ serve({
         allowSignups: true,
         channelCount: channels.size,
         defaultPermissions: config.defaultPermissions,
+        ytdlp: getYtdlpStatus()
       });
     }
 
@@ -582,38 +651,96 @@ serve({
         return Response.json({ error: "Guests cannot fetch from URLs" }, { status: 403 });
       }
       
+      // Check if feature is enabled
+      if (!ytdlpConfig.enabled) {
+        return Response.json({ error: "Feature disabled" }, { status: 403 });
+      }
+      if (!isYtdlpAvailable()) {
+        return Response.json({ error: "yt-dlp not available" }, { status: 503 });
+      }
+      
       try {
         const { url } = await req.json();
         if (!url || typeof url !== "string") {
           return Response.json({ error: "URL is required" }, { status: 400 });
         }
         
-        // Create fetch request
-        const request = createFetchRequest(url, user.id);
-        console.log(`[Fetch] ${user.username} requested: ${url} (id=${request.id})`);
+        console.log(`[Fetch] ${user.username} checking URL: ${url}`);
         
-        // Start download in background (don't await)
-        startDownload(request, config.musicDir);
+        // Check URL to detect playlist vs single video
+        const info = await checkUrl(url);
+        
+        if (info.type === "playlist") {
+          if (!ytdlpConfig.allowPlaylists) {
+            return Response.json({ error: "Playlist downloads are disabled" }, { status: 403 });
+          }
+          // Return playlist info for confirmation
+          return Response.json(info, { headers });
+        } else {
+          // Single video - add to fast queue immediately
+          const item = addToFastQueue(info.url, info.title, user.id);
+          console.log(`[Fetch] ${user.username} queued: ${info.title} (id=${item.id})`);
+          return Response.json({
+            type: "single",
+            id: item.id,
+            title: item.title,
+            queueType: "fast"
+          }, { headers });
+        }
+      } catch (e: any) {
+        console.error("[Fetch] Error:", e);
+        return Response.json({ error: e.message || "Invalid request" }, { status: 400 });
+      }
+    }
+
+    // API: confirm playlist download
+    if (path === "/api/fetch/confirm" && req.method === "POST") {
+      const { user, headers } = getOrCreateUser(req, server);
+      if (!user) {
+        return Response.json({ error: "Authentication required" }, { status: 401 });
+      }
+      if (user.is_guest) {
+        return Response.json({ error: "Guests cannot fetch from URLs" }, { status: 403 });
+      }
+      if (!ytdlpConfig.enabled || !isYtdlpAvailable()) {
+        return Response.json({ error: "Feature not available" }, { status: 503 });
+      }
+      
+      try {
+        const { items } = await req.json();
+        if (!Array.isArray(items) || items.length === 0) {
+          return Response.json({ error: "Items required" }, { status: 400 });
+        }
+        
+        const queueItems = addToSlowQueue(items, user.id);
+        const estimatedMinutes = Math.ceil(queueItems.length * ytdlpConfig.slowQueueInterval / 60);
+        const hours = Math.floor(estimatedMinutes / 60);
+        const mins = estimatedMinutes % 60;
+        const estimatedTime = hours > 0 ? `${hours}h ${mins}m` : `${mins}m`;
+        
+        console.log(`[Fetch] ${user.username} confirmed playlist: ${queueItems.length} items`);
         
         return Response.json({
-          message: "Fetch started", 
-          requestId: request.id 
+          message: `Added ${queueItems.length} items to queue`,
+          queueType: "slow",
+          estimatedTime,
+          items: queueItems.map(i => ({ id: i.id, title: i.title }))
         }, { headers });
       } catch (e) {
-        console.error("[Fetch] Error:", e);
+        console.error("[Fetch] Confirm error:", e);
         return Response.json({ error: "Invalid request" }, { status: 400 });
       }
     }
 
-    // API: get fetch requests for current user
+    // API: get fetch queue status for current user
     if (path === "/api/fetch" && req.method === "GET") {
       const { user, headers } = getOrCreateUser(req, server);
       if (!user) {
         return Response.json({ error: "Authentication required" }, { status: 401 });
       }
       
-      const requests = getUserRequests(user.id);
-      return Response.json({ requests }, { headers });
+      const queues = getUserQueues(user.id);
+      return Response.json(queues, { headers });
     }
 
     // Auth: signup

ytdlp.ts

@@ -1,79 +1,416 @@
 // MusicRoom - yt-dlp integration module
 // Handles fetching audio from URLs via yt-dlp
 
-export interface FetchRequest {
+import { spawn } from "child_process";
+import { join } from "path";
+
+export interface QueueItem {
   id: string;
   url: string;
-  status: "pending" | "downloading" | "processing" | "complete" | "error";
+  title: string;
+  userId: number;
+  status: "queued" | "downloading" | "complete" | "error";
   progress: number;
+  queueType: "fast" | "slow";
   error?: string;
   filename?: string;
   createdAt: number;
   completedAt?: number;
-  userId: number;
 }
 
-// In-memory store of active fetch requests
-const fetchRequests = new Map<string, FetchRequest>();
+export interface YtdlpStatus {
+  available: boolean;
+  enabled: boolean;
+  version: string | null;
+  ffmpeg: boolean;
+}
 
-// Generate unique request ID
+export interface PlaylistInfo {
+  type: "playlist";
+  title: string;
+  count: number;
+  items: { id: string; url: string; title: string }[];
+  requiresConfirmation: true;
+}
+
+export interface SingleVideoInfo {
+  type: "single";
+  id: string;
+  title: string;
+  url: string;
+}
+
+type ProgressCallback = (item: QueueItem) => void;
+
+// Configuration
+let ytdlpCommand = "yt-dlp";
+let ffmpegCommand = "ffmpeg";
+let musicDir = "./music";
+let fastQueueConcurrent = 2;
+let slowQueueInterval = 180;
+let allowPlaylists = true;
+
+// Status
+let ytdlpAvailable = false;
+let ytdlpVersion: string | null = null;
+let ffmpegAvailable = false;
+let featureEnabled = false;
+
+// Queues
+const fastQueue: QueueItem[] = [];
+const slowQueue: QueueItem[] = [];
+let activeDownloads = 0;
+let slowQueueTimer: ReturnType<typeof setTimeout> | null = null;
+let lastSlowDownload = 0;
+
+// Callbacks
+let onProgress: ProgressCallback | null = null;
+
+// Generate unique ID
 function generateId(): string {
   return Math.random().toString(36).substring(2, 10);
 }
 
-// Get all requests for a user
-export function getUserRequests(userId: number): FetchRequest[] {
-  return [...fetchRequests.values()].filter(r => r.userId === userId);
+// Initialize ytdlp module
+export async function initYtdlp(config: {
+  enabled: boolean;
+  command: string;
+  ffmpegCommand: string;
+  musicDir: string;
+  fastQueueConcurrent: number;
+  slowQueueInterval: number;
+  allowPlaylists: boolean;
+}): Promise<YtdlpStatus> {
+  featureEnabled = config.enabled;
+  ytdlpCommand = config.command;
+  ffmpegCommand = config.ffmpegCommand;
+  musicDir = config.musicDir;
+  fastQueueConcurrent = config.fastQueueConcurrent;
+  slowQueueInterval = config.slowQueueInterval;
+  allowPlaylists = config.allowPlaylists;
+
+  if (!featureEnabled) {
+    console.log("[ytdlp] Feature disabled in config");
+    return { available: false, enabled: false, version: null, ffmpeg: false };
+  }
+
+  // Check yt-dlp availability
+  try {
+    ytdlpVersion = await runCommand(ytdlpCommand, ["--version"]);
+    ytdlpAvailable = true;
+    console.log(`[ytdlp] Found yt-dlp version: ${ytdlpVersion.trim()}`);
+  } catch (e) {
+    console.error(`[ytdlp] yt-dlp not found (command: ${ytdlpCommand})`);
+    ytdlpAvailable = false;
+    featureEnabled = false;
+  }
+
+  // Check ffmpeg availability
+  try {
+    await runCommand(ffmpegCommand, ["-version"]);
+    ffmpegAvailable = true;
+    console.log("[ytdlp] ffmpeg available");
+  } catch (e) {
+    console.warn("[ytdlp] ffmpeg not found - audio extraction may fail");
+    ffmpegAvailable = false;
+  }
+
+  // Start slow queue processor
+  if (featureEnabled) {
+    startSlowQueueProcessor();
+  }
+
+  return getStatus();
 }
 
-// Get request by ID
-export function getRequest(id: string): FetchRequest | undefined {
-  return fetchRequests.get(id);
+// Run a command and return stdout
+function runCommand(cmd: string, args: string[]): Promise<string> {
+  const fullCmd = `${cmd} ${args.join(" ")}`;
+  console.log(`[ytdlp] Running: ${fullCmd}`);
+  return new Promise((resolve, reject) => {
+    const proc = spawn(cmd, args, { shell: true });
+    let stdout = "";
+    let stderr = "";
+    proc.stdout.on("data", (data) => { stdout += data; });
+    proc.stderr.on("data", (data) => { stderr += data; });
+    proc.on("close", (code) => {
+      console.log(`[ytdlp] Command exited with code ${code}`);
+      if (code === 0) resolve(stdout);
+      else reject(new Error(stderr || `Exit code ${code}`));
+    });
+    proc.on("error", reject);
+  });
 }
 
-// Create a new fetch request
-export function createFetchRequest(url: string, userId: number): FetchRequest {
-  const request: FetchRequest = {
+// Get current status
+export function getStatus(): YtdlpStatus {
+  return {
+    available: ytdlpAvailable,
+    enabled: featureEnabled,
+    version: ytdlpVersion,
+    ffmpeg: ffmpegAvailable
+  };
+}
+
+// Check if feature is enabled and available
+export function isAvailable(): boolean {
+  return featureEnabled && ytdlpAvailable;
+}
+
+// Set progress callback
+export function setProgressCallback(callback: ProgressCallback): void {
+  onProgress = callback;
+}
+
+// Get all queue items
+export function getQueues(): { fastQueue: QueueItem[]; slowQueue: QueueItem[]; slowQueueNextIn: number } {
+  const now = Date.now();
+  const nextIn = Math.max(0, Math.floor((lastSlowDownload + slowQueueInterval * 1000 - now) / 1000));
+  return {
+    fastQueue: [...fastQueue],
+    slowQueue: [...slowQueue],
+    slowQueueNextIn: nextIn
+  };
+}
+
+// Get queue items for a specific user
+export function getUserQueues(userId: number): { fastQueue: QueueItem[]; slowQueue: QueueItem[]; slowQueueNextIn: number } {
+  const queues = getQueues();
+  return {
+    fastQueue: queues.fastQueue.filter(i => i.userId === userId),
+    slowQueue: queues.slowQueue.filter(i => i.userId === userId),
+    slowQueueNextIn: queues.slowQueueNextIn
+  };
+}
+
+// Check URL and detect if it's a playlist
+export async function checkUrl(url: string): Promise<PlaylistInfo | SingleVideoInfo> {
+  const args = ["--flat-playlist", "--dump-json", "--no-warnings", url];
+  const output = await runCommand(ytdlpCommand, args);
+  
+  // Parse JSON lines
+  const lines = output.trim().split("\n").filter(l => l);
+  
+  if (lines.length === 0) {
+    throw new Error("No video found");
+  }
+  
+  if (lines.length === 1) {
+    const data = JSON.parse(lines[0]);
+    if (data._type === "playlist") {
+      // It's a playlist with entries
+      const items = (data.entries || []).map((e: any) => ({
+        id: generateId(),
+        url: e.url || e.webpage_url || `https://youtube.com/watch?v=${e.id}`,
+        title: e.title || "Unknown"
+      }));
+      return {
+        type: "playlist",
+        title: data.title || "Playlist",
+        count: items.length,
+        items,
+        requiresConfirmation: true
+      };
+    } else {
+      // Single video
+      return {
+        type: "single",
+        id: generateId(),
+        title: data.title || "Unknown",
+        url
+      };
+    }
+  } else {
+    // Multiple JSON lines = playlist
+    const items = lines.map(line => {
+      const data = JSON.parse(line);
+      return {
+        id: generateId(),
+        url: data.url || data.webpage_url || url,
+        title: data.title || "Unknown"
+      };
+    });
+    return {
+      type: "playlist",
+      title: "Playlist",
+      count: items.length,
+      items,
+      requiresConfirmation: true
+    };
+  }
+}
+
+// Add single video to fast queue
+export function addToFastQueue(url: string, title: string, userId: number): QueueItem {
+  const item: QueueItem = {
     id: generateId(),
     url,
-    status: "pending",
-    progress: 0,
-    createdAt: Date.now(),
+    title,
     userId,
+    status: "queued",
+    progress: 0,
+    queueType: "fast",
+    createdAt: Date.now()
   };
-  fetchRequests.set(request.id, request);
-  return request;
+  fastQueue.push(item);
+  processNextFast();
+  return item;
 }
 
-// Update request status
-export function updateRequest(id: string, updates: Partial<FetchRequest>): void {
-  const request = fetchRequests.get(id);
-  if (request) {
-    Object.assign(request, updates);
+// Add items to slow queue (for playlists)
+export function addToSlowQueue(items: { url: string; title: string }[], userId: number): QueueItem[] {
+  const queueItems: QueueItem[] = items.map(item => ({
+    id: generateId(),
+    url: item.url,
+    title: item.title,
+    userId,
+    status: "queued" as const,
+    progress: 0,
+    queueType: "slow" as const,
+    createdAt: Date.now()
+  }));
+  slowQueue.push(...queueItems);
+  return queueItems;
+}
+
+// Process next item in fast queue
+function processNextFast(): void {
+  if (activeDownloads >= fastQueueConcurrent) return;
+  
+  const item = fastQueue.find(i => i.status === "queued");
+  if (!item) return;
+  
+  activeDownloads++;
+  downloadItem(item).finally(() => {
+    activeDownloads--;
+    processNextFast();
+  });
+}
+
+// Start slow queue processor
+function startSlowQueueProcessor(): void {
+  if (slowQueueTimer) return;
+  
+  const processNext = () => {
+    const item = slowQueue.find(i => i.status === "queued");
+    if (item) {
+      lastSlowDownload = Date.now();
+      downloadItem(item).finally(() => {
+        slowQueueTimer = setTimeout(processNext, slowQueueInterval * 1000);
+      });
+    } else {
+      slowQueueTimer = setTimeout(processNext, 5000); // Check again in 5s
+    }
+  };
+  
+  // Start immediately if there are items
+  const hasQueued = slowQueue.some(i => i.status === "queued");
+  if (hasQueued) {
+    processNext();
+  } else {
+    slowQueueTimer = setTimeout(processNext, 5000);
   }
 }
 
-// Remove completed/failed requests older than given age (ms)
-export function cleanupOldRequests(maxAge: number = 3600000): void {
+// Download a single item
+async function downloadItem(item: QueueItem): Promise<void> {
+  item.status = "downloading";
+  item.progress = 0;
+  notifyProgress(item);
+  
+  console.log(`[ytdlp] Starting download: ${item.title} (${item.url})`);
+  
+  try {
+    const outputTemplate = join(musicDir, "%(title)s.%(ext)s");
+    const args = [
+      "-x",
+      "--audio-format", "mp3",
+      "-o", outputTemplate,
+      "--progress",
+      "--newline",
+      "--no-warnings",
+      item.url
+    ];
+    
+    const fullCmd = `${ytdlpCommand} ${args.join(" ")}`;
+    console.log(`[ytdlp] Running: ${fullCmd}`);
+    
+    await new Promise<void>((resolve, reject) => {
+      const proc = spawn(ytdlpCommand, args, { shell: true });
+      
+      proc.stdout.on("data", (data) => {
+        const line = data.toString();
+        console.log(`[ytdlp] ${line.trim()}`);
+        // Parse progress from yt-dlp output
+        const match = line.match(/(\d+\.?\d*)%/);
+        if (match) {
+          item.progress = parseFloat(match[1]);
+          notifyProgress(item);
+        }
+      });
+      
+      proc.stderr.on("data", (data) => {
+        console.error(`[ytdlp] stderr: ${data}`);
+      });
+      
+      proc.on("close", (code) => {
+        console.log(`[ytdlp] Download finished with code ${code}`);
+        if (code === 0) resolve();
+        else reject(new Error(`yt-dlp exited with code ${code}`));
+      });
+      
+      proc.on("error", reject);
+    });
+    
+    console.log(`[ytdlp] Complete: ${item.title}`);
+    item.status = "complete";
+    item.progress = 100;
+    item.completedAt = Date.now();
+    notifyProgress(item);
+    
+    // Remove from queue after delay
+    setTimeout(() => removeFromQueue(item), 5000);
+    
+  } catch (e: any) {
+    item.status = "error";
+    item.error = e.message || "Download failed";
+    notifyProgress(item);
+    
+    // Remove from queue after delay
+    setTimeout(() => removeFromQueue(item), 10000);
+  }
+}
+
+// Remove item from queue
+function removeFromQueue(item: QueueItem): void {
+  if (item.queueType === "fast") {
+    const idx = fastQueue.findIndex(i => i.id === item.id);
+    if (idx !== -1) fastQueue.splice(idx, 1);
+  } else {
+    const idx = slowQueue.findIndex(i => i.id === item.id);
+    if (idx !== -1) slowQueue.splice(idx, 1);
+  }
+}
+
+// Notify progress callback
+function notifyProgress(item: QueueItem): void {
+  if (onProgress) {
+    onProgress(item);
+  }
+}
+
+// Cleanup old completed/failed items
+export function cleanupOldItems(maxAge: number = 3600000): void {
   const now = Date.now();
-  for (const [id, request] of fetchRequests) {
-    if (request.status === "complete" || request.status === "error") {
-      if (now - request.createdAt > maxAge) {
-        fetchRequests.delete(id);
+  const cleanup = (queue: QueueItem[]) => {
+    for (let i = queue.length - 1; i >= 0; i--) {
+      const item = queue[i];
+      if ((item.status === "complete" || item.status === "error") && 
+          now - item.createdAt > maxAge) {
+        queue.splice(i, 1);
       }
     }
-  }
-}
-
-// TODO: Implement actual yt-dlp download
-// This will:
-// 1. Spawn yt-dlp process with URL
-// 2. Parse progress output
-// 3. Update request status
-// 4. Move completed file to music directory
-// 5. Trigger library rescan
-export async function startDownload(request: FetchRequest, musicDir: string): Promise<void> {
-  // Stub - to be implemented
-  console.log(`[ytdlp] Would download: ${request.url} to ${musicDir}`);
-  updateRequest(request.id, { status: "error", error: "Not implemented yet" });
+  };
+  cleanup(fastQueue);
+  cleanup(slowQueue);
 }