Implement basic ClearChat handling

Fixes #56

src/ircmanager.cpp

@@ -263,7 +263,49 @@ void IrcManager::handleRoomStateMessage(Communi::IrcMessage *message)
 
 void IrcManager::handleClearChatMessage(Communi::IrcMessage *message)
 {
-    // TODO: Implement
+    assert(message->parameters().length() >= 1);
+
+    auto rawChannelName = message->parameter(0);
+
+    assert(rawChannelName.length() >= 2);
+
+    auto trimmedChannelName = rawChannelName.mid(1);
+
+    auto c = this->channelManager.getTwitchChannel(trimmedChannelName);
+
+    if (!c) {
+        debug::Log("[IrcManager:handleClearChatMessage] Channel {} not found in channel manager",
+                   trimmedChannelName);
+        return;
+    }
+
+    if (message->parameters().length() == 1) {
+        std::shared_ptr<Message> msg(
+            Message::createSystemMessage("Chat has been cleared by a moderator."));
+
+        c->addMessage(msg);
+
+        return;
+    }
+
+    assert(message->parameters().length() >= 2);
+
+    QString username = message->parameter(1);
+    QString durationInSeconds, reason;
+    QVariant v = message->tag("ban-duration");
+    if (v.isValid()) {
+        durationInSeconds = v.toString();
+    }
+
+    v = message->tag("ban-reason");
+    if (v.isValid()) {
+        reason = v.toString();
+    }
+
+    std::shared_ptr<Message> msg(
+        Message::createTimeoutMessage(username, durationInSeconds, reason));
+
+    c->addMessage(msg);
 }
 
 void IrcManager::handleUserStateMessage(Communi::IrcMessage *message)

src/messages/message.cpp

@@ -107,6 +107,36 @@ Message *Message::createSystemMessage(const QString &text)
     return message;
 }
 
+Message *Message::createTimeoutMessage(const QString &username, const QString &durationInSeconds,
+                                       const QString &reason)
+{
+    Message *message = new Message;
+
+    AddCurrentTimestamp(message);
+
+    QString text;
+
+    text.append(username);
+    text.append(" has been timed out");
+
+    // TODO: Implement who timed the user out
+
+    text.append(" for ");
+    text.append(durationInSeconds);
+    bool ok = true;
+    int timeoutDuration = durationInSeconds.toInt(&ok);
+    text.append(" second");
+    if (ok && timeoutDuration > 1) {
+        text.append("s");
+    }
+
+    if (reason.length() > 0) {
+        text.append(": \"");
+        text.append(reason);
+        text.append("\"");
+    }
+    text.append(".");
+
     Word word(text, Word::Type::Default, MessageColor(MessageColor::Type::System), text, text);
 
     message->getWords().push_back(word);

src/messages/message.hpp

@@ -35,6 +35,9 @@ public:
 
     static Message *createSystemMessage(const QString &text);
 
+    static Message *createTimeoutMessage(const QString &username, const QString &durationInSeconds,
+                                         const QString &reason);
+
 private:
     static LazyLoadedImage *badgeStaff;
     static LazyLoadedImage *badgeAdmin;