audit

services/channelQueue.js

@@ -129,4 +129,32 @@ function enqueueSend(channel, ...args) {
   return next;
 }
 
-module.exports = { enqueueRename, enqueueMove, enqueueSend };
+// Delete a channel only after every in-flight send/rename/move on it has drained.
+// Chains on both renameChains and sendChains so "pending send in-flight, delete
+// racing it" can no longer hit Discord's unknown-channel 10003.
+function enqueueDelete(channel) {
+  if (!channel || typeof channel.delete !== 'function') {
+    return Promise.reject(new Error('enqueueDelete: invalid channel'));
+  }
+  const renameEntry = renameChains.get(channel.id);
+  const prevRename = renameEntry ? renameEntry.chain : Promise.resolve();
+  const prevSend = sendChains.get(channel.id) || Promise.resolve();
+
+  const next = Promise.all([
+    prevRename.catch(() => {}),
+    prevSend.catch(() => {})
+  ]).then(() => channel.delete().catch(() => {}));
+
+  if (renameEntry) renameEntry.chain = next;
+  sendChains.set(channel.id, next);
+
+  next.finally(() => {
+    if (renameEntry && renameChains.get(channel.id) === renameEntry && renameEntry.chain === next) {
+      renameChains.delete(channel.id);
+    }
+    if (sendChains.get(channel.id) === next) sendChains.delete(channel.id);
+  });
+  return next;
+}
+
+module.exports = { enqueueRename, enqueueMove, enqueueSend, enqueueDelete };