From 8d897d8dcf317047f21286bb279f9e3d3a57a559 Mon Sep 17 00:00:00 2001
From: barisusakli <barisusakli@gmail.com>
Date: Thu, 8 Sep 2016 17:24:20 +0300
Subject: [PATCH] autocompleteTags

---
 src/socket.io/topics/tags.js |  4 ++++
 src/topics/tags.js           | 35 ++++++++++++++++++++++++++++++-----
 2 files changed, 34 insertions(+), 5 deletions(-)

diff --git a/src/socket.io/topics/tags.js b/src/socket.io/topics/tags.js
index f55ec377fb..54bad0e7b3 100644
--- a/src/socket.io/topics/tags.js
+++ b/src/socket.io/topics/tags.js
@@ -4,6 +4,10 @@ var topics = require('../../topics');
 var utils = require('../../../public/src/utils');
 
 module.exports = function(SocketTopics) {
+	SocketTopics.autocompleteTags = function(socket, data, callback) {
+		topics.autocompleteTags(data, callback);
+	};
+
 	SocketTopics.searchTags = function(socket, data, callback) {
 		topics.searchTags(data, callback);
 	};
diff --git a/src/topics/tags.js b/src/topics/tags.js
index 4d8e01b912..ee5f7d8b9d 100644
--- a/src/topics/tags.js
+++ b/src/topics/tags.js
@@ -283,16 +283,42 @@ module.exports = function(Topics) {
 			});
 		}
 
+		findMatches(data.query, function(err, matches) {
+			if (err) {
+				return callback(err);
+			}
+			done(matches);
+		});
+	};
+
+	Topics.autocompleteTags = function(data, callback) {
+		if (!data || !data.query) {
+			return callback(null, []);
+		}
+
+		if (plugins.hasListeners('filter:topics.autocompleteTags')) {
+			return plugins.fireHook('filter:topics.autocompleteTags', {data: data}, function(err, data) {
+				if (err) {
+					return callback(err);
+				}
+				callback(null, data.matches);
+			});
+		}
+
+		findMatches(data.query, callback);
+	};
+
+	function findMatches(query, callback) {
 		db.getSortedSetRevRange('tags:topic:count', 0, -1, function(err, tags) {
 			if (err) {
 				return callback(err);
 			}
 
-			data.query = data.query.toLowerCase();
+			query = query.toLowerCase();
 
 			var matches = [];
 			for(var i=0; i<tags.length; ++i) {
-				if (tags[i].toLowerCase().startsWith(data.query)) {
+				if (tags[i].toLowerCase().startsWith(query)) {
 					matches.push(tags[i]);
 					if (matches.length > 19) {
 						break;
@@ -303,10 +329,9 @@ module.exports = function(Topics) {
 			matches = matches.sort(function(a, b) {
 				return a > b;
 			});
-
-			done(matches);
+			callback(null, matches);
 		});
-	};
+	}
 
 	Topics.searchAndLoadTags = function(data, callback) {
 		var searchResult = {