feat: Allow id: prefix in /ban and /timeout (#4945)

ban example: `/ban id:70948394`, equivalent to `/banid 70948394`
timeout example: `/timeout id:70948394 10 xd`

src/util/Twitch.cpp

@@ -62,6 +62,33 @@ void stripChannelName(QString &channelName)
     }
 }
 
+std::pair<ParsedUserName, ParsedUserID> parseUserNameOrID(const QString &input)
+{
+    if (input.startsWith("id:"))
+    {
+        return {
+            {},
+            input.mid(3),
+        };
+    }
+
+    QString userName = input;
+
+    if (userName.startsWith('@') || userName.startsWith('#'))
+    {
+        userName.remove(0, 1);
+    }
+    if (userName.endsWith(','))
+    {
+        userName.chop(1);
+    }
+
+    return {
+        userName,
+        {},
+    };
+}
+
 QRegularExpression twitchUserNameRegexp()
 {
     static QRegularExpression re(

src/util/Twitch.hpp

@@ -16,6 +16,16 @@ void stripUserName(QString &userName);
 // stripChannelName removes any @ prefix or , suffix to make it more suitable for command use
 void stripChannelName(QString &channelName);
 
+using ParsedUserName = QString;
+using ParsedUserID = QString;
+
+/**
+ * Parse the given input into either a user name or a user ID
+ *
+ * User IDs take priority and are parsed if the input starts with `id:`
+ */
+std::pair<ParsedUserName, ParsedUserID> parseUserNameOrID(const QString &input);
+
 // Matches a strict Twitch user login.
 // May contain lowercase a-z, 0-9, and underscores
 // Must contain between 1 and 25 characters