From 451774145536475f0471f9926c6b7c6e1648645e Mon Sep 17 00:00:00 2001
From: calzoneman <calzoneman@gmail.com>
Date: Sat, 21 Sep 2013 00:10:22 -0500
Subject: [PATCH] A few minor changes to the /clean merge

---
 changelog          |  4 ++++
 lib/chatcommand.js | 56 +++++++++++++---------------------------------
 lib/playlist.js    | 27 ++++++++++++++++++++++
 3 files changed, 47 insertions(+), 40 deletions(-)

diff --git a/changelog b/changelog
index 1f9ce5e8..56770ae1 100644
--- a/changelog
+++ b/changelog
@@ -1,3 +1,7 @@
+Sat Sep 21 00:08 2013 CDT
+    * lib/playlist.js: Make .clean(filter) an instance method
+    * lib/chatcommand.js: Make a few minor changes to unbibium's /clean
+
 Wed Sep 18 18:26 2013 CDT
     * lib/user.js: Change channel checks to include checking for whether
       the channel is dead
diff --git a/lib/chatcommand.js b/lib/chatcommand.js
index 11f8b5e0..dfc87031 100644
--- a/lib/chatcommand.js
+++ b/lib/chatcommand.js
@@ -249,63 +249,39 @@ function handleClear(chan, user) {
     chan.sendAll("clearchat");
 }
 
-var user_input_re = /^(-[img]+\s+)/i
+/*
+    /clean and /cleantitle contributed by http://github.com/unbibium.
+    Modifications by Calvin Montgomery
+*/
 
-function user_input_regexp(target) {
-    var m = target.match(user_input_re);
+function generateTargetRegex(target) {
+    const flagsre = /^(-[img]+\s+)/i
+    var m = target.match(flagsre);
     var flags = "";
     if (m) {
         flags = m[0].slice(1,-1);
-        target = target.replace(user_input_re, "");
+        target = target.replace(flagsre, "");
     }
     return new RegExp(target, flags);
 }
 
 function handleClean(chan, user, target) {
-    // you can use regexps, in case someone tries
-    // to fool you with cyrillic or something.
-    target = user_input_regexp(target);
-    cleanPlaylist(chan, user, function(item) {
+    if (!chan.hasPermission(user, "playlistdelete"))
+        return;
+    target = generateTargetRegex(target);
+    chan.playlist.clean(function (item) {
         return target.test(item.queueby);
     });
 }
 
 function handleCleanTitle(chan, user, target) {
-    target = user_input_regexp(target);
-    cleanPlaylist(chan, user, function(item) {
+    if (!chan.hasPermission(user, "playlistdelete"))
+        return;
+    target = generateTargetRegex(target);
+    chan.playlist.clean(function (item) {
         return target.exec(item.media.title) !== null;
     });
 }
 
-/**
-Remove all videos by a particular user.
-*/
-function cleanPlaylist(chan, user, filter) {
-    if(!chan.hasPermission(user, "playlistdelete")) { 
-        return;
-    }
-    // local variables for deleteNext() callback
-    var pl = chan.playlist;
-    var count = 0;
-    var matches = pl.items.findAll(filter);
-    var deleteNext;
-    deleteNext = function() {
-        if (count < matches.length) {
-            var uid=matches[count].uid;
-            count += 1
-            chan.sendAll("delete", {
-                uid: uid
-            });
-            pl.remove(uid, deleteNext);
-        } else {
-            // refresh playlist only once, at the end
-            chan.broadcastPlaylistMeta();
-        }
-    }
-    // start initial callback
-    deleteNext();
-    return;
-}
-
 exports.handle = handle;
 
diff --git a/lib/playlist.js b/lib/playlist.js
index 9ec0ac8c..624a6bdf 100644
--- a/lib/playlist.js
+++ b/lib/playlist.js
@@ -563,4 +563,31 @@ Playlist.prototype._leadLoop = function() {
     }
 }
 
+/*
+    Delete items from the playlist for which filter(item) returns
+    a truthy value
+
+    based on code contributed by http://github.com/unbibium
+*/
+Playlist.prototype.clean = function (filter) {
+    var self = this;
+    var matches = self.items.findAll(filter);
+    var count = 0;
+    var deleteNext = function () {
+        if (count < matches.length) {
+            var uid = matches[count].uid;
+            count++;
+            self.channel.sendAll("delete", {
+                uid: uid
+            });
+            self.remove(uid, deleteNext);
+        } else {
+            // refresh meta only once, at the end
+            self.channel.broadcastPlaylistMeta();
+        }
+    };
+    // start initial callback
+    deleteNext();
+};
+
 module.exports = Playlist;