Strip leading @ and trailing , from /user and /usercard commands (#3143)

Co-authored-by: Rasmus Karlsson <rasmus.karlsson@pajlada.com>

CHANGELOG.md

@@ -3,6 +3,7 @@
 ## Unversioned
 
 - Minor: Remove TwitchEmotes.com attribution and the open/copy options when right-clicking a Twitch Emote. (#2214, #3136)
+- Minor: Strip leading @ and trailing , from username in /user and /usercard commands. (#3143)
 - Minor: Display a system message when reloading subscription emotes to match BTTV/FFZ behavior (#3135)
 - Bugfix: Moderation mode and active filters are now preserved when opening a split as a popup. (#3113, #3130)
 - Bugfix: Fixed a bug that caused all badge highlights to use the same color. (#3132, #3134)

src/controllers/commands/CommandController.cpp

@@ -70,6 +70,32 @@ static const QStringList twitchDefaultCommands{
 
 static const QStringList whisperCommands{"/w", ".w"};
 
+// stripUserName removes any @ prefix or , suffix to make it more suitable for command use
+void stripUserName(QString &userName)
+{
+    if (userName.startsWith('@'))
+    {
+        userName.remove(0, 1);
+    }
+    if (userName.endsWith(','))
+    {
+        userName.chop(1);
+    }
+}
+
+// stripChannelName removes any @ prefix or , suffix to make it more suitable for command use
+void stripChannelName(QString &channelName)
+{
+    if (channelName.startsWith('@') || channelName.startsWith('#'))
+    {
+        channelName.remove(0, 1);
+    }
+    if (channelName.endsWith(','))
+    {
+        channelName.chop(1);
+    }
+}
+
 void sendWhisperMessage(const QString &text)
 {
     // (hemirt) pajlada: "we should not be sending whispers through jtv, but
@@ -430,16 +456,17 @@ void CommandController::initialize(Settings &, Paths &paths)
                 makeSystemMessage("Usage /user [user] (channel)"));
             return "";
         }
+        QString userName = words[1];
+        stripUserName(userName);
+
         QString channelName = channel->getName();
+
         if (words.size() > 2)
         {
             channelName = words[2];
-            if (channelName[0] == '#')
-            {
-                channelName.remove(0, 1);
+            stripChannelName(channelName);
         }
-        }
-        openTwitchUsercard(channelName, words[1]);
+        openTwitchUsercard(channelName, userName);
 
         return "";
     });
@@ -451,10 +478,12 @@ void CommandController::initialize(Settings &, Paths &paths)
             return "";
         }
 
+        QString userName = words[1];
+        stripUserName(userName);
         auto *userPopup = new UserInfoPopup(
             getSettings()->autoCloseUserPopup,
             static_cast<QWidget *>(&(getApp()->windows->getMainWindow())));
-        userPopup->setData(words[1], channel);
+        userPopup->setData(userName, channel);
         userPopup->move(QCursor::pos());
         userPopup->show();
         return "";