Handle ritual (new viewer announcement) messages (#2703)

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

CHANGELOG.md

@@ -10,6 +10,7 @@
 - Bugfix: Added missing Copy/Open link context menu entries to emotes in Emote Picker. (#2670)
 - Bugfix: Fixed visual glitch with smooth scrolling. (#2084)
 - Bugfix: Clicking on split header focuses its split. (#2720)
+- Bugfix: Handle new user messages ("rituals") properly. (#2703)
 
 ## 2.3.0
 

src/providers/twitch/IrcMessageHandler.cpp

@@ -23,6 +23,16 @@
 
 namespace {
 using namespace chatterino;
+
+// Message types below are the ones that might contain special user's message on USERNOTICE
+static const QSet<QString> specialMessageTypes{
+    "sub",            //
+    "subgift",        //
+    "resub",          // resub messages
+    "bitsbadgetier",  // bits badge upgrade
+    "ritual",         // new viewer ritual
+};
+
 MessagePtr generateBannedMessage(bool confirmedBan)
 {
     const auto linkColor = MessageColor(MessageColor::Link);
@@ -561,12 +571,9 @@ std::vector<MessagePtr> IrcMessageHandler::parseUserNoticeMessage(
 {
     std::vector<MessagePtr> builtMessages;
 
-    auto data = message->toData();
-
     auto tags = message->tags();
     auto parameters = message->parameters();
 
-    auto target = parameters[0];
     QString msgType = tags.value("msg-id", "").toString();
     QString content;
     if (parameters.size() >= 2)
@@ -574,11 +581,9 @@ std::vector<MessagePtr> IrcMessageHandler::parseUserNoticeMessage(
         content = parameters[1];
     }
 
-    if (msgType == "sub" || msgType == "resub" || msgType == "subgift" ||
+    if (specialMessageTypes.contains(msgType))
-        msgType == "bitsbadgetier")
     {
-        // Sub-specific and bits badge upgrade specific message.
+        // Messages are not required, so they might be empty
-        // It's only allowed for "resub" messages.
         if (!content.isEmpty())
         {
             MessageParseArgs args;
@@ -596,6 +601,7 @@ std::vector<MessagePtr> IrcMessageHandler::parseUserNoticeMessage(
 
     if (it != tags.end())
     {
+        // By default, we return value of system-msg tag
         QString messageText = it.value().toString();
 
         if (msgType == "bitsbadgetier")
@@ -620,8 +626,6 @@ std::vector<MessagePtr> IrcMessageHandler::parseUserNoticeMessage(
 void IrcMessageHandler::handleUserNoticeMessage(Communi::IrcMessage *message,
                                                 TwitchIrcServer &server)
 {
-    auto data = message->toData();
-
     auto tags = message->tags();
     auto parameters = message->parameters();
 
@@ -633,11 +637,9 @@ void IrcMessageHandler::handleUserNoticeMessage(Communi::IrcMessage *message,
         content = parameters[1];
     }
 
-    if (msgType == "sub" || msgType == "resub" || msgType == "subgift" ||
+    if (specialMessageTypes.contains(msgType))
-        msgType == "bitsbadgetier")
     {
-        // Sub-specific and bits badge upgrade specific message.
+        // Messages are not required, so they might be empty
-        // It's only allowed for "resub" messages.
         if (!content.isEmpty())
         {
             this->addMessage(message, target, content, server, true, false);
@@ -648,6 +650,7 @@ void IrcMessageHandler::handleUserNoticeMessage(Communi::IrcMessage *message,
 
     if (it != tags.end())
     {
+        // By default, we return value of system-msg tag
         QString messageText = it.value().toString();
 
         if (msgType == "bitsbadgetier")