From 880e24c9e2fcf45af341cf3103e5f409988d4b65 Mon Sep 17 00:00:00 2001
From: Enrico Stara <enrico.stara@gmail.com>
Date: Sun, 23 Aug 2015 10:55:46 +0200
Subject: [PATCH] Remove code duplication

---
 lib/telegram.link.js | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/lib/telegram.link.js b/lib/telegram.link.js
index fb71138..4fa4a35 100644
--- a/lib/telegram.link.js
+++ b/lib/telegram.link.js
@@ -316,13 +316,7 @@ Client.prototype.stopHttpPollLoop = function () {
 
 // The code:
 Client.prototype.registerOnUpdates = function (callback) {
-    var emitter = this._channel.getParser();
-    emitter.on('api.type.UpdatesTooLong', callback);
-    emitter.on('api.type.UpdateShortMessage', callback);
-    emitter.on('api.type.UpdateShortChatMessage', callback);
-    emitter.on('api.type.UpdateShort', callback);
-    emitter.on('api.type.UpdatesCombined', callback);
-    emitter.on('api.type.Updates', callback);
+    manageUpdatesListener.call(this, 'on', callback);
 };
 
 // ***
@@ -332,15 +326,19 @@ Client.prototype.registerOnUpdates = function (callback) {
 
 // The code:
 Client.prototype.unregisterOnUpdates = function (callback) {
-    var emitter = this._channel.getParser();
-    emitter.removeListener('api.type.UpdatesTooLong', callback);
-    emitter.removeListener('api.type.UpdateShortMessage', callback);
-    emitter.removeListener('api.type.UpdateShortChatMessage', callback);
-    emitter.removeListener('api.type.UpdateShort', callback);
-    emitter.removeListener('api.type.UpdatesCombined', callback);
-    emitter.removeListener('api.type.Updates', callback);
+    manageUpdatesListener.call(this, 'removeListener', callback);
 };
 
+function manageUpdatesListener  (func, callback) {
+    var emitter = this._channel.getParser();
+    emitter[func]('api.type.UpdatesTooLong', callback);
+    emitter[func]('api.type.UpdateShortMessage', callback);
+    emitter[func]('api.type.UpdateShortChatMessage', callback);
+    emitter[func]('api.type.UpdateShort', callback);
+    emitter[func]('api.type.UpdatesCombined', callback);
+    emitter[func]('api.type.Updates', callback);
+}
+
 
 // ***
 // client.**isReady()**