feat(eventsub): implement timeout stacking (#6013)

src/providers/twitch/eventsub/MessageHandlers.cpp

@@ -43,13 +43,21 @@ void handleModerateMessage(
 
     EventSubMessageBuilder builder(chan, time);
     builder->loginName = event.moderatorUserLogin.qt();
+    // pretend we're pubsub
+    builder->flags.set(MessageFlag::PubSub);
 
     QString text;
     bool isShared = event.isFromSharedChat();
 
-    builder.appendUser(event.moderatorUserName, event.moderatorUserLogin, text);
+    // XXX: We use regular links here instead of appendUser, because stacking
+    //      will create those as well. Once everything uses mention elements,
+    //      this can use them as well.
+
+    builder.emplaceSystemTextAndUpdate(event.moderatorUserLogin.qt(), text)
+        ->setLink({Link::UserInfo, event.moderatorUserLogin.qt()});
     builder.emplaceSystemTextAndUpdate("timed out", text);
-    builder.appendUser(action.userName, action.userLogin, text);
+    builder.emplaceSystemTextAndUpdate(action.userLogin.qt(), text)
+        ->setLink({Link::UserInfo, action.userLogin.qt()});
 
     builder.emplaceSystemTextAndUpdate("for", text);
     builder
@@ -60,10 +68,18 @@ void handleModerateMessage(
     if (isShared)
     {
         builder.emplaceSystemTextAndUpdate("in", text);
-        builder.appendUser(*event.sourceBroadcasterUserName,
-                           *event.sourceBroadcasterUserLogin, text, false);
+        builder
+            .emplaceSystemTextAndUpdate(event.sourceBroadcasterUserLogin->qt(),
+                                        text)
+            ->setLink({Link::UserInfo, event.sourceBroadcasterUserLogin->qt()})
+            ->setTrailingSpace(false);
+        builder->flags.set(MessageFlag::SharedMessage);
+        builder->channelName = event.sourceBroadcasterUserLogin->qt();
     }
 
+    assert(text.endsWith(' '));
+    text.removeLast();  // trailing space
+
     if (action.reason.view().empty())
     {
         builder.emplaceSystemTextAndUpdate(".", text);
@@ -79,9 +95,8 @@ void handleModerateMessage(
     builder->timeoutUser = action.userLogin.qt();
 
     auto msg = builder.release();
-    runInGuiThread([chan, msg] {
-        // TODO: addOrReplaceTimeout (doesn't work with shared chat yet)
-        chan->addMessage(msg, MessageContext::Original);
+    runInGuiThread([chan, msg, time] {
+        chan->addOrReplaceTimeout(msg, time);
     });
 }