added way to delete channels

db.ts

@@ -386,16 +386,21 @@ export function deleteChannelFromDb(id: string): void {
 
 // Queue persistence functions
 export function saveChannelQueue(channelId: string, trackIds: string[]): void {
-  // Delete existing queue
+  db.query("BEGIN").run();
+  try {
     db.query("DELETE FROM channel_queue WHERE channel_id = ?").run(channelId);
     
-  // Insert new queue
     const insert = db.query(
       "INSERT INTO channel_queue (channel_id, track_id, position) VALUES (?, ?, ?)"
     );
     for (let i = 0; i < trackIds.length; i++) {
       insert.run(channelId, trackIds[i], i);
     }
+    db.query("COMMIT").run();
+  } catch (e) {
+    db.query("ROLLBACK").run();
+    throw e;
+  }
 }
 
 export function loadChannelQueue(channelId: string): string[] {

public/channelSync.js

@@ -50,6 +50,28 @@
     }
   };
   
+  // Delete a channel
+  M.deleteChannel = async function(channelId) {
+    const channel = M.channels?.find(c => c.id === channelId);
+    if (!channel) return;
+    if (channel.isDefault) {
+      M.showToast("Cannot delete default channel");
+      return;
+    }
+    if (!confirm(`Delete channel "${channel.name}"?`)) return;
+    try {
+      const res = await fetch(`/api/channels/${channelId}`, { method: "DELETE" });
+      if (!res.ok) {
+        const err = await res.json();
+        M.showToast(err.error || "Failed to delete channel");
+        return;
+      }
+      M.showToast(`Channel "${channel.name}" deleted`);
+    } catch (e) {
+      M.showToast("Failed to delete channel");
+    }
+  };
+  
   // New channel creation with slideout input
   M.createNewChannel = async function() {
     const header = M.$("#channels-panel .panel-header");
@@ -129,14 +151,29 @@
       const listenersHtml = Object.entries(counts).map(([name, count]) => 
         `<div class="listener">${name}${count > 1 ? ` <span class="listener-mult">x${count}</span>` : ""}</div>`
       ).join("");
+      
+      // Show delete button for non-default channels if user is admin or creator
+      const canDelete = !ch.isDefault && M.currentUser && 
+        (M.currentUser.isAdmin || ch.createdBy === M.currentUser.id);
+      const deleteBtn = canDelete ? `<button class="btn-delete-channel" title="Delete channel">×</button>` : "";
+      
       div.innerHTML = `
         <div class="channel-header">
           <span class="channel-name">${ch.name}</span>
+          ${deleteBtn}
           <span class="listener-count">${ch.listenerCount}</span>
         </div>
         <div class="channel-listeners">${listenersHtml}</div>
       `;
-      div.querySelector(".channel-header").onclick = () => M.switchChannel(ch.id);
+      const headerEl = div.querySelector(".channel-header");
+      headerEl.querySelector(".channel-name").onclick = () => M.switchChannel(ch.id);
+      const delBtn = headerEl.querySelector(".btn-delete-channel");
+      if (delBtn) {
+        delBtn.onclick = (e) => {
+          e.stopPropagation();
+          M.deleteChannel(ch.id);
+        };
+      }
       container.appendChild(div);
     }
   };

public/styles.css

@@ -29,6 +29,9 @@ h3 { font-size: 0.8rem; color: #666; margin-bottom: 0.3rem; text-transform: uppe
 #channels-list .channel-header:hover { background: #222; }
 #channels-list .channel-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 0.8rem; }
 #channels-list .listener-count { font-size: 0.65rem; color: #666; flex-shrink: 0; margin-left: 0.3rem; }
+#channels-list .btn-delete-channel { background: none; border: none; color: #666; font-size: 0.9rem; cursor: pointer; padding: 0 0.2rem; line-height: 1; opacity: 0; transition: opacity 0.15s; }
+#channels-list .channel-header:hover .btn-delete-channel { opacity: 1; }
+#channels-list .btn-delete-channel:hover { color: #e44; }
 #channels-list .channel-listeners { display: flex; flex-direction: column; margin-left: 0.5rem; border-left: 1px solid #333; padding-left: 0.3rem; }
 #channels-list .listener { font-size: 0.65rem; color: #aaa; padding: 0.05rem 0; position: relative; }
 #channels-list .listener::before { content: ""; position: absolute; left: -0.3rem; top: 50%; width: 0.2rem; height: 1px; background: #333; }

server.ts

@@ -475,6 +475,18 @@ serve({
       if (!user.is_admin && channel.createdBy !== user.id) {
         return Response.json({ error: "Access denied" }, { status: 403 });
       }
+      
+      // Move connected clients to default channel before deleting
+      const defaultChannel = [...channels.values()].find(c => c.isDefault);
+      if (defaultChannel && channel.clients.size > 0) {
+        for (const ws of channel.clients) {
+          channel.removeClient(ws);
+          ws.data.channelId = defaultChannel.id;
+          defaultChannel.addClient(ws);
+          ws.send(JSON.stringify({ type: "switched", channelId: defaultChannel.id }));
+        }
+      }
+      
       channels.delete(channelId);
       deleteChannelFromDb(channelId);
       broadcastChannelList();