fix channel updating

bot/src/index.js

@@ -412,23 +412,59 @@ app.post('/queue/add', (req, res) => {
 });
 
 app.get('/channels', async (req, res) => {
-  try {
-    const guild = await client.guilds.fetch(DISCORD_GUILD_ID);
-    const channels = await guild.channels.fetch();
-    const voiceChannels = channels
-      .filter(channel => channel.type === 2) // Type 2 is voice channel
-      .map(channel => ({
-        id: channel.id,
-        name: channel.name,
-        userCount: channel.members?.size || 0,
-        current: connection?.joinConfig?.channelId === channel.id
-      }))
-      .sort((a, b) => a.name.localeCompare(b.name));
+  const currentChannelId = connection?.joinConfig?.channelId;
 
-    res.json({ channels: voiceChannels });
+  try {
+    // Try to get channels from cache first, then fetch if needed
+    const guild = client.guilds.cache.get(DISCORD_GUILD_ID);
+
+    if (guild) {
+      // Use cached channels if available
+      let channels = guild.channels.cache;
+
+      // If cache is empty, try fetching with timeout
+      if (channels.size === 0) {
+        try {
+          const fetchPromise = guild.channels.fetch();
+          const timeoutPromise = new Promise((_, reject) =>
+            setTimeout(() => reject(new Error('Timeout')), 2000)
+          );
+          channels = await Promise.race([fetchPromise, timeoutPromise]);
+        } catch (fetchError) {
+          logger.warn(`Failed to fetch channels (${fetchError.message}), using cache`);
+        }
+      }
+
+      const voiceChannels = channels
+        .filter(channel => channel.type === 2) // Type 2 is voice channel
+        .map(channel => ({
+          id: channel.id,
+          name: channel.name,
+          userCount: channel.members?.size || 0,
+          current: currentChannelId === channel.id
+        }))
+        .sort((a, b) => a.name.localeCompare(b.name));
+
+      return res.json({ channels: voiceChannels });
+    }
+
+    // If no cached guild, return connection info
+    throw new Error('Guild not in cache');
   } catch (error) {
-    logger.error(`Failed to fetch channels: ${error.message}`);
-    res.status(500).json({ error: 'Failed to fetch channels' });
+    // On error, return cached connection info
+    logger.warn(`Failed to get channels (${error.message}), returning cached data`);
+
+    if (currentChannelId) {
+      return res.json({
+        channels: [{
+          id: currentChannelId,
+          name: 'Connected',
+          userCount: 0,
+          current: true
+        }]
+      });
+    }
+    res.json({ channels: [] });
   }
 });