if every post gets deleted in a topic, then the topic deletes itself also

src/postTools.js

@@ -88,6 +88,15 @@ marked.setOptions({
 				io.sockets.in('topic_' + tid).emit('event:post_deleted', {
 					pid: pid
 				});
+
+				// Delete the thread if it is the last undeleted post
+				threadTools.get_latest_undeleted_pid(tid, function(err, pid) {
+					if (err && err.message === 'no-undeleted-pids-found') {
+						threadTools.delete(tid, -1, function(err) {
+							if (err) console.log('Error: Could not delete topic (tid: ' + tid + ')');
+						});
+					}
+				});
 			});
 		};
 

src/threadTools.js

@@ -81,25 +81,20 @@ var	RDB = require('./redis.js'),
 		});
 	}
 
-	ThreadTools.delete = function(tid, uid, socket) {
+	ThreadTools.delete = function(tid, uid, callback) {
 		ThreadTools.privileges(tid, uid, function(privileges) {
-			if (privileges.editable) {
+			if (privileges.editable || uid === -1) {
 				
 				topics.setTopicField(tid, 'deleted', 1);
 				ThreadTools.lock(tid, uid);
 
-				if (socket) {
 				io.sockets.in('topic_' + tid).emit('event:topic_deleted', {
 					tid: tid,
 					status: 'ok'
 				});
 
-					socket.emit('api:topic.delete', {
-						status: 'ok',
-						tid: tid
-					});
-				}
-			}
+				callback(null);
+			} else callback(new Error('not-enough-privs'));
 		});
 	}
 

src/websockets.js

@@ -286,7 +286,14 @@ var SocketIO = require('socket.io').listen(global.server, { log:false }),
 		});
 
 		socket.on('api:topic.delete', function(data) {
-			threadTools.delete(data.tid, uid, socket);
+			threadTools.delete(data.tid, uid, function(err) {
+				if (!err) {
+					socket.emit('api:topic.delete', {
+						status: 'ok',
+						tid: data.tid
+					});
+				}
+			});
 		});
 
 		socket.on('api:topic.restore', function(data) {