Added /requests command. Usage: /requests [channel]. (#3746)

Opens the channel points requests queue for the provided channel or the current channel if no input is provided.

Co-authored-by: Mm2PL <mm2pl+gh@kotmisia.pl>

src/controllers/commands/CommandController.cpp

@@ -548,6 +548,36 @@ void CommandController::initialize(Settings &, Paths &paths)
         return "";
     });
 
+    this->registerCommand("/requests", [](const QStringList &words,
+                                          ChannelPtr channel) {
+        QString target(words.value(1));
+
+        if (target.isEmpty())
+        {
+            if (channel->getType() == Channel::Type::Twitch &&
+                !channel->isEmpty())
+            {
+                target = channel->getName();
+            }
+            else
+            {
+                channel->addMessage(makeSystemMessage(
+                    "Usage: /requests [channel]. You can also use the command "
+                    "without arguments in any Twitch channel to open its "
+                    "channel points requests queue. Only the broadcaster and "
+                    "moderators have permission to view the queue."));
+                return "";
+            }
+        }
+
+        stripChannelName(target);
+        QDesktopServices::openUrl(
+            QUrl(QString("https://www.twitch.tv/popout/%1/reward-queue")
+                     .arg(target)));
+
+        return "";
+    });
+
     this->registerCommand(
         "/chatters", [](const auto & /*words*/, auto channel) {
             auto twitchChannel = dynamic_cast<TwitchChannel *>(channel.get());