Add clickable usernames in host offline messages (#2922)

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

CHANGELOG.md

@@ -2,6 +2,7 @@
 
 ## Unversioned
 
+- Minor: Channel name in `<channel> has gone offline. Exiting host mode.` messages is now clickable. (#2922)
 - Minor: Added `/openurl` command. Usage: `/openurl <URL>`. Opens the provided URL in the browser. (#2461, #2926)
 - Bugfix: Fixed large timeout durations in moderation buttons overlapping with usernames or other buttons. (#2865, #2921)
 

src/providers/twitch/IrcMessageHandler.cpp

@@ -819,21 +819,26 @@ void IrcMessageHandler::handleNoticeMessage(Communi::IrcNoticeMessage *message)
                 "Usage: \"/delete <msg-id>\" - can't take more "
                 "than one argument"));
         }
-        else if (tags == "host_on")
+        else if (tags == "host_on" || tags == "host_target_went_offline")
         {
+            bool hostOn = (tags == "host_on");
             QStringList parts = msg->messageText.split(QLatin1Char(' '));
-            if (parts.size() != 3)
+            if ((hostOn && parts.size() != 3) || (!hostOn && parts.size() != 7))
             {
                 return;
             }
-            auto &channelName = parts[2];
+            auto &channelName = hostOn ? parts[2] : parts[0];
             if (channelName.size() < 2)
             {
                 return;
             }
+            if (hostOn)
+            {
                 channelName.chop(1);
+            }
             MessageBuilder builder;
-            TwitchMessageBuilder::hostingSystemMessage(channelName, &builder);
+            TwitchMessageBuilder::hostingSystemMessage(channelName, &builder,
+                                                       hostOn);
             channel->addMessage(builder.release());
         }
         else

src/providers/twitch/TwitchMessageBuilder.cpp

@@ -1337,18 +1337,34 @@ void TwitchMessageBuilder::offlineSystemMessage(const QString &channelName,
 }
 
 void TwitchMessageBuilder::hostingSystemMessage(const QString &channelName,
-                                                MessageBuilder *builder)
+                                                MessageBuilder *builder,
+                                                bool hostOn)
 {
     builder->emplace<TimestampElement>();
     builder->message().flags.set(MessageFlag::System);
     builder->message().flags.set(MessageFlag::DoNotTriggerNotification);
+    if (hostOn)
+    {
         builder->emplace<TextElement>("Now hosting", MessageElementFlag::Text,
                                       MessageColor::System);
         builder
-        ->emplace<TextElement>(channelName + ".", MessageElementFlag::Username,
+            ->emplace<TextElement>(
+                channelName + ".", MessageElementFlag::Username,
                 MessageColor::System, FontStyle::ChatMediumBold)
             ->setLink({Link::UserInfo, channelName});
     }
+    else
+    {
+        builder
+            ->emplace<TextElement>(channelName, MessageElementFlag::Username,
+                                   MessageColor::System,
+                                   FontStyle::ChatMediumBold)
+            ->setLink({Link::UserInfo, channelName});
+        builder->emplace<TextElement>("has gone offline. Exiting host mode.",
+                                      MessageElementFlag::Text,
+                                      MessageColor::System);
+    }
+}
 
 // irc variant
 void TwitchMessageBuilder::deletionMessage(const MessagePtr originalMessage,

src/providers/twitch/TwitchMessageBuilder.hpp

@@ -58,7 +58,7 @@ public:
     static void offlineSystemMessage(const QString &channelName,
                                      MessageBuilder *builder);
     static void hostingSystemMessage(const QString &channelName,
-                                     MessageBuilder *builder);
+                                     MessageBuilder *builder, bool hostOn);
     static void deletionMessage(const MessagePtr originalMessage,
                                 MessageBuilder *builder);
     static void deletionMessage(const DeleteAction &action,