Fixed messages getting loaded multiple times. (#170)

* Implemented loading recent messages.

* Fixed messages getting loaded multiple times.

src/twitch/twitchchannel.cpp

@@ -22,6 +22,8 @@ TwitchChannel::TwitchChannel(IrcManager &ircManager, const QString &channelName,
 {
     debug::Log("[TwitchChannel:{}] Opened", this->name);
 
+    this->dontAddMessages = true;
+
     if (!this->isSpecial) {
         this->reloadChannelEmotes();
     }
@@ -35,6 +37,10 @@ TwitchChannel::TwitchChannel(IrcManager &ircManager, const QString &channelName,
     this->roomIDchanged.connect([this]() {
         this->refreshLiveStatus();  //
     });
+
+    this->fetchMessages.connect([this] {
+        this->fetchRecentMessages();
+    });
 }
 
 TwitchChannel::~TwitchChannel()
@@ -57,6 +63,7 @@ void TwitchChannel::setRoomID(const QString &_roomID)
 {
     this->roomID = _roomID;
     this->roomIDchanged();
+    this->fetchMessages.invoke();
 }
 
 void TwitchChannel::reloadChannelEmotes()
@@ -121,5 +128,24 @@ void TwitchChannel::refreshLiveStatus()
     });
 }
 
+void TwitchChannel::fetchRecentMessages()
+{
+    static QString genericURL =
+        "https://tmi.twitch.tv/api/rooms/%1/recent_messages?client_id=" + getDefaultClientID();
+    static auto readConnection = this->ircManager.getReadConnection();
+
+    util::twitch::get(genericURL.arg(roomID), QThread::currentThread(), [=](QJsonObject obj) {
+        this->dontAddMessages = false;
+        auto msgArray = obj.value("messages").toArray();
+        if (msgArray.size())
+            for (int i = 0; i < msgArray.size(); i++) {
+                QByteArray content = msgArray[i].toString().toUtf8();
+                auto msg = Communi::IrcMessage::fromData(content, readConnection);
+                auto privMsg = static_cast<Communi::IrcPrivateMessage *>(msg);
+                this->ircManager.privateMessageReceived(privMsg);
+            }
+    });
+}
+
 }  // namespace twitch
 }  // namespace chatterino

src/twitch/twitchchannel.hpp

@@ -33,6 +33,8 @@ public:
     boost::signals2::signal<void()> roomIDchanged;
     boost::signals2::signal<void()> onlineStatusChanged;
 
+    pajlada::Signals::NoArgBoltSignal fetchMessages;
+
     QString roomID;
     bool isLive;
     QString streamViewerCount;
@@ -44,6 +46,8 @@ private:
     void setLive(bool newLiveStatus);
     void refreshLiveStatus();
 
+    void fetchRecentMessages();
+
     IrcManager &ircManager;
 
     bool isSpecial;