Merge pull request #37 from monich/order

Fix chat ordering and optimize chat data storage

qml/pages/OverviewPage.qml

@@ -63,7 +63,6 @@ Page {
         repeat: false
         onTriggered: {
             overviewPage.chatListCreated = true;
-            chatListModel.enableDeltaUpdates();
         }
     }
 

src/chatlistmodel.cpp

@@ -21,22 +21,76 @@
 #include <QListIterator>
 #include <QDebug>
 
+#define LOG(x) qDebug() << "[ChatListModel]" << x
+
+namespace {
+    const QString ID("id");
+    const QString ORDER("order");
+    const QString CHAT_ID("chat_id");
+    const QString LAST_MESSAGE("last_message");
+    const QString UNREAD_COUNT("unread_count");
+    const QString NOTIFICATION_SETTINGS("notification_settings");
+    const QString LAST_READ_INBOX_MESSAGE_ID("last_read_inbox_message_id");
+    const QString LAST_READ_OUTBOX_MESSAGE_ID("last_read_outbox_message_id");
+}
+
+class ChatListModel::ChatData
+{
+public:
+    ChatData(const QVariantMap &data);
+
+    int compareTo(const ChatData *chat) const;
+    bool setOrder(const QString &order);
+
+public:
+    QVariantMap chatData;
+    QString chatId;
+    qlonglong order;
+};
+
+ChatListModel::ChatData::ChatData(const QVariantMap &data) :
+    chatData(data),
+    chatId(data.value(ID).toString()),
+    order(data.value(ORDER).toLongLong())
+{
+}
+
+int ChatListModel::ChatData::compareTo(const ChatData *other) const
+{
+    if (order == other->order) {
+        return chatId.compare(other->chatId);
+    } else {
+        // This puts most recent ones to the top of the list
+        return (order < other->order) ? 1 : -1;
+    }
+}
+
+bool ChatListModel::ChatData::setOrder(const QString &newOrder)
+{
+    if (!newOrder.isEmpty()) {
+        chatData.insert(ORDER, newOrder);
+        order = newOrder.toLongLong();
+        return true;
+    }
+    return false;
+}
+
 ChatListModel::ChatListModel(TDLibWrapper *tdLibWrapper)
 {
-    this->tdLibWrapper = tdLibWrapper;
+    tdLibWrapper = tdLibWrapper;
-    this->deltaUpdates = false;
+    connect(tdLibWrapper, SIGNAL(newChatDiscovered(QString,QVariantMap)), this, SLOT(handleChatDiscovered(QString,QVariantMap)));
-    connect(this->tdLibWrapper, SIGNAL(newChatDiscovered(QString, QVariantMap)), this, SLOT(handleChatDiscovered(QString, QVariantMap)));
+    connect(tdLibWrapper, SIGNAL(chatLastMessageUpdated(QString,QString,QVariantMap)), this, SLOT(handleChatLastMessageUpdated(QString,QString,QVariantMap)));
-    connect(this->tdLibWrapper, SIGNAL(chatLastMessageUpdated(QString, QString, QVariantMap)), this, SLOT(handleChatLastMessageUpdated(QString, QString, QVariantMap)));
+    connect(tdLibWrapper, SIGNAL(chatOrderUpdated(QString,QString)), this, SLOT(handleChatOrderUpdated(QString,QString)));
-    connect(this->tdLibWrapper, SIGNAL(chatOrderUpdated(QString, QString)), this, SLOT(handleChatOrderUpdated(QString, QString)));
+    connect(tdLibWrapper, SIGNAL(chatReadInboxUpdated(QString,QString,int)), this, SLOT(handleChatReadInboxUpdated(QString,QString,int)));
-    connect(this->tdLibWrapper, SIGNAL(chatReadInboxUpdated(QString, QString, int)), this, SLOT(handleChatReadInboxUpdated(QString, QString, int)));
+    connect(tdLibWrapper, SIGNAL(chatReadOutboxUpdated(QString,QString)), this, SLOT(handleChatReadOutboxUpdated(QString,QString)));
-    connect(this->tdLibWrapper, SIGNAL(chatReadOutboxUpdated(QString, QString)), this, SLOT(handleChatReadOutboxUpdated(QString, QString)));
+    connect(tdLibWrapper, SIGNAL(messageSendSucceeded(QString,QString,QVariantMap)), this, SLOT(handleMessageSendSucceeded(QString,QString,QVariantMap)));
-    connect(this->tdLibWrapper, SIGNAL(messageSendSucceeded(QString, QString, QVariantMap)), this, SLOT(handleMessageSendSucceeded(QString, QString, QVariantMap)));
+    connect(tdLibWrapper, SIGNAL(chatNotificationSettingsUpdated(QString,QVariantMap)), this, SLOT(handleChatNotificationSettingsUpdated(QString,QVariantMap)));
-    connect(this->tdLibWrapper, SIGNAL(chatNotificationSettingsUpdated(QString, QVariantMap)), this, SLOT(handleChatNotificationSettingsUpdated(QString, QVariantMap)));
 }
 
 ChatListModel::~ChatListModel()
 {
-    qDebug() << "[ChatListModel] Destroying myself...";
+    LOG("Destroying myself...");
+    qDeleteAll(chatList);
 }
 
 int ChatListModel::rowCount(const QModelIndex &) const
@@ -46,185 +100,156 @@ int ChatListModel::rowCount(const QModelIndex &) const
 
 QVariant ChatListModel::data(const QModelIndex &index, int role) const
 {
-    if(index.isValid() && role == Qt::DisplayRole) {
+    const int row = index.row();
-        return QVariant(chatList.value(index.row()));
+    if (row >= 0 && row < chatList.size() && role == Qt::DisplayRole) {
+        return chatList.at(row)->chatData;
     }
     return QVariant();
 }
 
-bool ChatListModel::insertRows(int row, int count, const QModelIndex &parent)
-{
-    qDebug() << "[ChatListModel] Inserting at " << row << ", row count: " << count;
-    beginInsertRows(parent, rowCount(QModelIndex()), rowCount(QModelIndex()) + count - 1);
-    this->chatList.append(this->chatToBeAdded);
-    this->chatIndexMap.insert(this->chatToBeAdded.value("id").toString(), row);
-    endInsertRows();
-    return true;
-}
-
-void ChatListModel::enableDeltaUpdates()
-{
-    qDebug() << "[ChatListModel] Enabling delta updates and enforcing UI redraw...";
-    layoutChanged();
-    this->deltaUpdates = true;
-}
-
 void ChatListModel::redrawModel()
 {
-    qDebug() << "[ChatListModel] Enforcing UI redraw...";
+    LOG("Enforcing UI redraw...");
     layoutChanged();
 }
 
-bool compareChats(const QVariant &chat1, const QVariant &chat2)
+int ChatListModel::updateChatOrder(int chatIndex)
 {
-    QVariantMap chatMap1 = chat1.toMap();
+    ChatData* chat = chatList.at(chatIndex);
-    QVariantMap chatMap2 = chat2.toMap();
+
-    // Order comes first...
+    const int n = chatList.size();
-    if (chatMap1.value("order").toLongLong() > chatMap2.value("order").toLongLong()) {
+    int newIndex = chatIndex;
-        return true;
+    while (newIndex > 0 && chat->compareTo(chatList.at(newIndex-1)) < 0) {
+        newIndex--;
     }
-    // ID comes next...
+    if (newIndex == chatIndex) {
-    if (chatMap1.value("order").toLongLong() == chatMap2.value("order").toLongLong() && chatMap1.value("id").toLongLong() > chatMap2.value("id").toLongLong()) {
+        while (newIndex < n-1 && chat->compareTo(chatList.at(newIndex+1)) > 0) {
-        return true;
+            newIndex++;
+        }
+    }
+    if (newIndex != chatIndex) {
+        LOG("Moving chat" << chat->chatId << "from position" << chatIndex << "to" << newIndex);
+        beginMoveRows(QModelIndex(), chatIndex, chatIndex, QModelIndex(), (newIndex < chatIndex) ? newIndex : (newIndex+1));
+        chatList.move(chatIndex, newIndex);
+        chatIndexMap.insert(chat->chatId, newIndex);
+        // Update damaged part of the map
+        const int last = qMax(chatIndex, newIndex);
+        if (newIndex < chatIndex) {
+            // First index is already correct
+            for (int i = newIndex + 1; i <= last; i++) {
+                chatIndexMap.insert(chatList.at(i)->chatId, i);
+            }
+        } else {
+            // Last index is already correct
+            for (int i = chatIndex; i < last; i++) {
+                chatIndexMap.insert(chatList.at(i)->chatId, i);
+            }
+        }
+        endMoveRows();
     } else {
-        return false;
+        LOG("Chat" << chat->chatId << "stays at position" << chatIndex);
     }
+
+    return newIndex;
 }
 
-void ChatListModel::handleChatDiscovered(const QString &chatId, const QVariantMap &chatInformation)
+void ChatListModel::handleChatDiscovered(const QString &chatId, const QVariantMap &chatToBeAdded)
 {
-    this->chatListMutex.lock();
+    ChatData* chat = new ChatData(chatToBeAdded);
-    qDebug() << "[ChatListModel] Adding new chat " << chatId;
+    const int n = chatList.size();
-    this->chatToBeAdded = chatInformation;
+    int chatIndex;
-    insertRows(rowCount(QModelIndex()), 1);
+    for (chatIndex = 0; chatIndex < n && chat->compareTo(chatList.at(chatIndex)) >= 0; chatIndex++);
-    this->chatListMutex.unlock();
+    LOG("Adding new chat" << chatId << "at" << chatIndex);
+    beginInsertRows(QModelIndex(), chatIndex, chatIndex);
+    chatList.insert(chatIndex, chat);
+    chatIndexMap.insert(chat->chatId, chatIndex);
+    // Update damaged part of the map
+    for (int i = chatIndex + 1; i <= n; i++) {
+        chatIndexMap.insert(chatList.at(i)->chatId, i);
+    }
+    endInsertRows();
 }
 
-
-
 void ChatListModel::handleChatLastMessageUpdated(const QString &chatId, const QString &order, const QVariantMap &lastMessage)
 {
-    this->chatListMutex.lock();
+    if (chatIndexMap.contains(chatId)) {
-    int chatIndex = this->chatIndexMap.value(chatId).toInt();
+        int chatIndex = chatIndexMap.value(chatId);
-    qDebug() << "[ChatListModel] Updating last message for chat " << chatId << " at index " << chatIndex;
+        LOG("Updating last message for chat" << chatId <<" at index" << chatIndex << "new order" << order);
-    QVariantMap currentChat = this->chatList.value(chatIndex).toMap();
+        ChatData* chat = chatList.at(chatIndex);
-    currentChat.insert("last_message", lastMessage);
+        chat->chatData.insert(LAST_MESSAGE, lastMessage);
-    currentChat.insert("order", order);
+        if (chat->setOrder(order)) {
-    this->chatList.replace(chatIndex, currentChat);
+            chatIndex = updateChatOrder(chatIndex);
-    emit dataChanged(this->index(chatIndex), this->index(chatIndex));
+        }
-
+        const QModelIndex modelIndex(index(chatIndex));
-    this->updateChatOrder(chatIndex, currentChat);
+        emit dataChanged(modelIndex, modelIndex);
-    emit chatChanged(chatId);
+        emit chatChanged(chatId);
-
+    }
-    this->chatListMutex.unlock();
 }
 
 void ChatListModel::handleChatOrderUpdated(const QString &chatId, const QString &order)
 {
-    this->chatListMutex.lock();
+    if (chatIndexMap.contains(chatId)) {
-    qDebug() << "[ChatListModel] Updating chat order because of " << chatId << " new order " << order;
+        LOG("Updating chat order of" << chatId << "to" << order);
-    int chatIndex = this->chatIndexMap.value(chatId).toInt();
+        int chatIndex = chatIndexMap.value(chatId);
-    QVariantMap currentChat = this->chatList.at(chatIndex).toMap();
+        if (chatList.at(chatIndex)->setOrder(order)) {
-    currentChat.insert("order", order);
+            chatIndex = updateChatOrder(chatIndex);
-    this->chatList.replace(chatIndex, currentChat);
+        }
-    emit dataChanged(this->index(chatIndex), this->index(chatIndex));
+        const QModelIndex modelIndex(index(chatIndex));
-
+        emit dataChanged(modelIndex, modelIndex);
-    this->updateChatOrder(chatIndex, currentChat);
+        emit chatChanged(chatId);
-    emit chatChanged(chatId);
+    }
-
-    this->chatListMutex.unlock();
 }
 
 void ChatListModel::handleChatReadInboxUpdated(const QString &chatId, const QString &lastReadInboxMessageId, const int &unreadCount)
 {
-    this->chatListMutex.lock();
+    if (chatIndexMap.contains(chatId)) {
-    qDebug() << "[ChatListModel] Updating chat unread count for " << chatId << " unread messages " << unreadCount << ", last read message ID: " << lastReadInboxMessageId;
+        LOG("Updating chat unread count for" << chatId << "unread messages" << unreadCount << ", last read message ID: " << lastReadInboxMessageId);
-    int chatIndex = this->chatIndexMap.value(chatId).toInt();
+        const int chatIndex = chatIndexMap.value(chatId);
-    QVariantMap currentChat = this->chatList.at(chatIndex).toMap();
+        ChatData* chat = chatList.at(chatIndex);
-    currentChat.insert("unread_count", unreadCount);
+        chat->chatData.insert(UNREAD_COUNT, unreadCount);
-    currentChat.insert("last_read_inbox_message_id", lastReadInboxMessageId);
+        chat->chatData.insert(LAST_READ_INBOX_MESSAGE_ID, lastReadInboxMessageId);
-    this->chatList.replace(chatIndex, currentChat);
+        const QModelIndex modelIndex(index(chatIndex));
-    emit dataChanged(this->index(chatIndex), this->index(chatIndex));
+        emit dataChanged(modelIndex, modelIndex);
-    emit chatChanged(chatId);
+        emit chatChanged(chatId);
-    this->chatListMutex.unlock();
+    }
 }
 
 void ChatListModel::handleChatReadOutboxUpdated(const QString &chatId, const QString &lastReadOutboxMessageId)
 {
-    this->chatListMutex.lock();
+    if (chatIndexMap.contains(chatId)) {
-    qDebug() << "[ChatListModel] Updating last read message for " << chatId << " last ID " << lastReadOutboxMessageId;
+        LOG("Updating last read message for" << chatId << "last ID" << lastReadOutboxMessageId);
-    int chatIndex = this->chatIndexMap.value(chatId).toInt();
+        const int chatIndex = chatIndexMap.value(chatId);
-    QVariantMap currentChat = this->chatList.at(chatIndex).toMap();
+        ChatData* chat = chatList.at(chatIndex);
-    currentChat.insert("last_read_outbox_message_id", lastReadOutboxMessageId);
+        chat->chatData.insert(LAST_READ_OUTBOX_MESSAGE_ID, lastReadOutboxMessageId);
-    this->chatList.replace(chatIndex, currentChat);
+        const QModelIndex modelIndex(index(chatIndex));
-    emit dataChanged(this->index(chatIndex), this->index(chatIndex));
+        emit dataChanged(modelIndex, modelIndex);
-    emit chatChanged(chatId);
+        emit chatChanged(chatId);
-    this->chatListMutex.unlock();
+    }
 }
 
 void ChatListModel::handleMessageSendSucceeded(const QString &messageId, const QString &oldMessageId, const QVariantMap &message)
 {
-    this->chatListMutex.lock();
+    const QString chatId(message.value(CHAT_ID).toString());
-    QString chatId = message.value("chat_id").toString();
+    if (chatIndexMap.contains(chatId)) {
-    int chatIndex = this->chatIndexMap.value(chatId).toInt();
+        const int chatIndex = chatIndexMap.value(chatId);
-    qDebug() << "[ChatListModel] Updating last message for chat " << chatId << " at index " << chatIndex << ", as message was sent, old ID: " << oldMessageId << ", new ID: " << messageId;
+        LOG("Updating last message for chat" << chatId << "at index" << chatIndex << ", as message was sent, old ID:" << oldMessageId << ", new ID:" << messageId);
-    QVariantMap currentChat = this->chatList.value(chatIndex).toMap();
+        ChatData* chat = chatList.at(chatIndex);
-    currentChat.insert("last_message", message);
+        chat->chatData.insert(LAST_MESSAGE, message);
-    this->chatList.replace(chatIndex, currentChat);
+        const QModelIndex modelIndex(index(chatIndex));
-    emit dataChanged(this->index(chatIndex), this->index(chatIndex));
+        emit dataChanged(modelIndex, modelIndex);
-    emit chatChanged(chatId);
+        emit chatChanged(chatId);
-
+    }
-    this->chatListMutex.unlock();
 }
 
 void ChatListModel::handleChatNotificationSettingsUpdated(const QString &chatId, const QVariantMap &chatNotificationSettings)
 {
-    this->chatListMutex.lock();
+    if (chatIndexMap.contains(chatId)) {
-    int chatIndex = this->chatIndexMap.value(chatId).toInt();
+        const int chatIndex = chatIndexMap.value(chatId);
-    qDebug() << "[ChatListModel] Updating notification settings for chat " << chatId << " at index " << chatIndex;
+        LOG("Updating notification settings for chat" << chatId << "at index" << chatIndex);
-    QVariantMap currentChat = this->chatList.value(chatIndex).toMap();
+        ChatData* chat = chatList.at(chatIndex);
-    currentChat.insert("notification_settings", chatNotificationSettings);
+        chat->chatData.insert(NOTIFICATION_SETTINGS, chatNotificationSettings);
-    this->chatList.replace(chatIndex, currentChat);
+        const QModelIndex modelIndex(index(chatIndex));
-    emit dataChanged(this->index(chatIndex), this->index(chatIndex));
+        emit dataChanged(modelIndex, modelIndex);
-    emit chatChanged(chatId);
+        emit chatChanged(chatId);
-
-    this->chatListMutex.unlock();
-}
-
-void ChatListModel::updateChatOrder(const int &currentChatIndex, const QVariantMap &updatedChat)
-{
-    // Finding the new position manually as information is needed by beginMoveRows()
-    // This seems to be the most convenient way of persisting the list position while changing the items
-    // Other alternative layoutChanged() after sorting resets the index position - there we would need to calculate the new position as well
-    // If somebody has a better solution - go for it ;)
-    int newChatIndex = 0;
-    QVariantMap previousChat;
-    for (int i = 0; i < this->chatList.length(); i++) {
-        QVariantMap otherChat = this->chatList.at(i).toMap();
-        if (compareChats(updatedChat, otherChat)) {
-            if (previousChat.value("id") == updatedChat.value("id")) {
-                newChatIndex = currentChatIndex;
-            } else {
-                newChatIndex = i;
-            }
-            break;
-        }
-        previousChat = otherChat;
-    }
-    if (newChatIndex != currentChatIndex) {
-        // The updated chat now needs to go to the position of the other chat
-        qDebug() << "[ChatListModel] Chat " << updatedChat.value("id").toString() << " will be moved from position " << currentChatIndex << " to " << newChatIndex;
-        if (deltaUpdates) {
-            beginMoveRows(QModelIndex(), currentChatIndex, currentChatIndex, QModelIndex(), (( newChatIndex < currentChatIndex ) ? newChatIndex : ( newChatIndex + 1 )));
-        }
-        std::sort(this->chatList.begin(), this->chatList.end(), compareChats);
-        this->chatIndexMap.clear();
-        for (int i = 0; i < this->chatList.length(); i++) {
-            this->chatIndexMap.insert(this->chatList.at(i).toMap().value("id").toString(), i);
-        }
-        if (deltaUpdates) {
-            endMoveRows();
-        }
-
     }
 }

src/chatlistmodel.h

@@ -34,15 +34,13 @@ public:
 
     virtual int rowCount(const QModelIndex&) const override;
     virtual QVariant data(const QModelIndex &index, int role) const override;
-    virtual bool insertRows(int row, int count, const QModelIndex &parent = QModelIndex()) override;
 
-    Q_INVOKABLE void enableDeltaUpdates();
     Q_INVOKABLE void redrawModel();
 
 signals:
     void chatChanged(const QString &chatId);
 
-public slots:
+private slots:
     void handleChatDiscovered(const QString &chatId, const QVariantMap &chatInformation);
     void handleChatLastMessageUpdated(const QString &chatId, const QString &order, const QVariantMap &lastMessage);
     void handleChatOrderUpdated(const QString &chatId, const QString &order);
@@ -52,15 +50,14 @@ public slots:
     void handleChatNotificationSettingsUpdated(const QString &chatId, const QVariantMap &chatNotificationSettings);
 
 private:
+    int updateChatOrder(int chatIndex);
+
+private:
+    class ChatData;
+
     TDLibWrapper *tdLibWrapper;
-    QVariantList chatList;
+    QList<ChatData*> chatList;
-    QVariantMap chatToBeAdded;
+    QHash<QString,int> chatIndexMap;
-    QVariantMap chatIndexMap;
-    QMutex chatListMutex;
-    bool deltaUpdates;
-
-    void updateChatOrder(const int &currentChatIndex, const QVariantMap &updatedChat);
-
 };
 
 #endif // CHATLISTMODEL_H

src/tdlibreceiver.cpp

@@ -18,25 +18,93 @@
 */
 #include "tdlibreceiver.h"
 
+#define LOG(x) qDebug() << "[TDLibReceiver]" << x
+
+namespace {
+    const QString ID("id");
+    const QString LIST("list");
+    const QString CHAT_ID("chat_id");
+    const QString POSITION("position");
+    const QString POSITIONS("positions");
+    const QString ORDER("order");
+    const QString LAST_MESSAGE("last_message");
+    const QString UNREAD_COUNT("unread_count");
+    const QString LAST_READ_INBOX_MESSAGE_ID("last_read_inbox_message_id");
+    const QString LAST_READ_OUTBOX_MESSAGE_ID("last_read_outbox_message_id");
+
+    const QString TYPE("@type");
+    const QString TYPE_CHAT_POSITION("chatPosition");
+    const QString TYPE_CHAT_LIST_MAIN("chatListMain");
+}
+
+static QString getChatPositionOrder(const QVariantMap &position)
+{
+    if (position.value(TYPE).toString() == TYPE_CHAT_POSITION &&
+        position.value(LIST).toMap().value(TYPE) == TYPE_CHAT_LIST_MAIN) {
+        return position.value(ORDER).toString();
+    }
+    return QString();
+}
+
+static QString findChatPositionOrder(const QVariantList &positions)
+{
+    const int n = positions.count();
+    for (int i = 0; i < n; i++) {
+        const QString order(getChatPositionOrder(positions.at(i).toMap()));
+        if (!order.isEmpty()) {
+            return order;
+        }
+    }
+    return QString();
+}
+
 TDLibReceiver::TDLibReceiver(void *tdLibClient, QObject *parent) : QThread(parent)
 {
     this->tdLibClient = tdLibClient;
     this->isActive = true;
+
+    handlers.insert("updateOption", &TDLibReceiver::processUpdateOption);
+    handlers.insert("updateAuthorizationState", &TDLibReceiver::processUpdateAuthorizationState);
+    handlers.insert("updateConnectionState", &TDLibReceiver::processUpdateConnectionState);
+    handlers.insert("updateUser", &TDLibReceiver::processUpdateUser);
+    handlers.insert("updateUserStatus", &TDLibReceiver::processUpdateUserStatus);
+    handlers.insert("updateFile", &TDLibReceiver::processUpdateFile);
+    handlers.insert("file", &TDLibReceiver::processFile);
+    handlers.insert("updateNewChat", &TDLibReceiver::processUpdateNewChat);
+    handlers.insert("updateUnreadMessageCount", &TDLibReceiver::processUpdateUnreadMessageCount);
+    handlers.insert("updateUnreadChatCount", &TDLibReceiver::processUpdateUnreadChatCount);
+    handlers.insert("updateChatLastMessage", &TDLibReceiver::processUpdateChatLastMessage);
+    handlers.insert("updateChatOrder", &TDLibReceiver::processUpdateChatOrder);
+    handlers.insert("updateChatPosition", &TDLibReceiver::processUpdateChatPosition);
+    handlers.insert("updateChatReadInbox", &TDLibReceiver::processUpdateChatReadInbox);
+    handlers.insert("updateChatReadOutbox", &TDLibReceiver::processUpdateChatReadOutbox);
+    handlers.insert("updateBasicGroup", &TDLibReceiver::processUpdateBasicGroup);
+    handlers.insert("updateSupergroup", &TDLibReceiver::processUpdateSuperGroup);
+    handlers.insert("updateChatOnlineMemberCount", &TDLibReceiver::processChatOnlineMemberCountUpdated);
+    handlers.insert("messages", &TDLibReceiver::processMessages);
+    handlers.insert("updateNewMessage", &TDLibReceiver::processUpdateNewMessage);
+    handlers.insert("message", &TDLibReceiver::processMessage);
+    handlers.insert("updateMessageSendSucceeded", &TDLibReceiver::processMessageSendSucceeded);
+    handlers.insert("updateActiveNotifications", &TDLibReceiver::processUpdateActiveNotifications);
+    handlers.insert("updateNotificationGroup", &TDLibReceiver::processUpdateNotificationGroup);
+    handlers.insert("updateChatNotificationSettings", &TDLibReceiver::processUpdateChatNotificationSettings);
+    handlers.insert("updateMessageContent", &TDLibReceiver::processUpdateMessageContent);
+    handlers.insert("updateDeleteMessages", &TDLibReceiver::processUpdateDeleteMessages);
 }
 
 void TDLibReceiver::setActive(const bool &active)
 {
     if (active) {
-        qDebug() << "[TDLibReceiver] Activating receiver loop...";
+        LOG("Activating receiver loop...");
     } else {
-        qDebug() << "[TDLibReceiver] Deactivating receiver loop, this may take a while...";
+        LOG("Deactivating receiver loop, this may take a while...");
     }
     this->isActive = active;
 }
 
 void TDLibReceiver::receiverLoop()
 {
-    qDebug() << "[TDLibReceiver] Starting receiver loop";
+    LOG("Starting receiver loop");
     const double WAIT_TIMEOUT = 5.0;
     while (this->isActive) {
       const char *result = td_json_client_receive(this->tdLibClient, WAIT_TIMEOUT);
@@ -46,7 +114,7 @@ void TDLibReceiver::receiverLoop()
           processReceivedDocument(receivedJsonDocument);
       }
     }
-    qDebug() << "[TDLibReceiver] Stopping receiver loop";
+    LOG("Stopping receiver loop");
 }
 
 void TDLibReceiver::processReceivedDocument(const QJsonDocument &receivedJsonDocument)
@@ -54,32 +122,12 @@ void TDLibReceiver::processReceivedDocument(const QJsonDocument &receivedJsonDoc
     QVariantMap receivedInformation = receivedJsonDocument.object().toVariantMap();
     QString objectTypeName = receivedInformation.value("@type").toString();
 
-    if (objectTypeName == "updateOption") { this->processUpdateOption(receivedInformation); }
+    Handler handler = handlers.value(objectTypeName);
-    if (objectTypeName == "updateAuthorizationState") { this->processUpdateAuthorizationState(receivedInformation); }
+    if (handler) {
-    if (objectTypeName == "updateConnectionState") { this->processUpdateConnectionState(receivedInformation); }
+        (this->*handler)(receivedInformation);
-    if (objectTypeName == "updateUser") { this->processUpdateUser(receivedInformation); }
+    } else {
-    if (objectTypeName == "updateUserStatus") { this->processUpdateUserStatus(receivedInformation); }
+        LOG("Unhandled object type" << objectTypeName);
-    if (objectTypeName == "updateFile") { this->processUpdateFile(receivedInformation); }
+    }
-    if (objectTypeName == "file") { this->processFile(receivedInformation); }
-    if (objectTypeName == "updateNewChat") { this->processUpdateNewChat(receivedInformation); }
-    if (objectTypeName == "updateUnreadMessageCount") { this->processUpdateUnreadMessageCount(receivedInformation); }
-    if (objectTypeName == "updateUnreadChatCount") { this->processUpdateUnreadChatCount(receivedInformation); }
-    if (objectTypeName == "updateChatLastMessage") { this->processUpdateChatLastMessage(receivedInformation); }
-    if (objectTypeName == "updateChatOrder") { this->processUpdateChatOrder(receivedInformation); }
-    if (objectTypeName == "updateChatReadInbox") { this->processUpdateChatReadInbox(receivedInformation); }
-    if (objectTypeName == "updateChatReadOutbox") { this->processUpdateChatReadOutbox(receivedInformation); }
-    if (objectTypeName == "updateBasicGroup") { this->processUpdateBasicGroup(receivedInformation); }
-    if (objectTypeName == "updateSupergroup") { this->processUpdateSuperGroup(receivedInformation); }
-    if (objectTypeName == "updateChatOnlineMemberCount") { this->processChatOnlineMemberCountUpdated(receivedInformation); }
-    if (objectTypeName == "messages") { this->processMessages(receivedInformation); }
-    if (objectTypeName == "updateNewMessage") { this->processUpdateNewMessage(receivedInformation); }
-    if (objectTypeName == "message") { this->processMessage(receivedInformation); }
-    if (objectTypeName == "updateMessageSendSucceeded") { this->processMessageSendSucceeded(receivedInformation); }
-    if (objectTypeName == "updateActiveNotifications") { this->processUpdateActiveNotifications(receivedInformation); }
-    if (objectTypeName == "updateNotificationGroup") { this->processUpdateNotificationGroup(receivedInformation); }
-    if (objectTypeName == "updateChatNotificationSettings") { this->processUpdateChatNotificationSettings(receivedInformation); }
-    if (objectTypeName == "updateMessageContent") { this->processUpdateMessageContent(receivedInformation); }
-    if (objectTypeName == "updateDeleteMessages") { this->processUpdateDeleteMessages(receivedInformation); }
 }
 
 void TDLibReceiver::processUpdateOption(const QVariantMap &receivedInformation)
@@ -87,11 +135,11 @@ void TDLibReceiver::processUpdateOption(const QVariantMap &receivedInformation)
     QString currentOption = receivedInformation.value("name").toString();
     if (currentOption == "version") {
         QString detectedVersion = receivedInformation.value("value").toMap().value("value").toString();
-        qDebug() << "[TDLibReceiver] TD Lib version detected: " << detectedVersion;
+        LOG("TD Lib version detected: " << detectedVersion);
         emit versionDetected(detectedVersion);
     } else {
         QVariant currentValue = receivedInformation.value("value").toMap().value("value");
-        qDebug() << "[TDLibReceiver] Option updated: " << currentOption << currentValue;
+        LOG("Option updated: " << currentOption << currentValue);
         emit optionUpdated(currentOption, currentValue);
     }
 }
@@ -99,21 +147,21 @@ void TDLibReceiver::processUpdateOption(const QVariantMap &receivedInformation)
 void TDLibReceiver::processUpdateAuthorizationState(const QVariantMap &receivedInformation)
 {
     QString authorizationState = receivedInformation.value("authorization_state").toMap().value("@type").toString();
-    qDebug() << "[TDLibReceiver] Authorization state changed: " << authorizationState;
+    LOG("Authorization state changed: " << authorizationState);
     emit authorizationStateChanged(authorizationState);
 }
 
 void TDLibReceiver::processUpdateConnectionState(const QVariantMap &receivedInformation)
 {
     QString connectionState = receivedInformation.value("state").toMap().value("@type").toString();
-    qDebug() << "[TDLibReceiver] Connection state changed: " << connectionState;
+    LOG("Connection state changed: " << connectionState);
     emit connectionStateChanged(connectionState);
 }
 
 void TDLibReceiver::processUpdateUser(const QVariantMap &receivedInformation)
 {
     QVariantMap userInformation = receivedInformation.value("user").toMap();
-    // qDebug() << "[TDLibReceiver] User was updated: " << userInformation.value("username").toString() << userInformation.value("first_name").toString() << userInformation.value("last_name").toString();
+    // LOG("User was updated: " << userInformation.value("username").toString() << userInformation.value("first_name").toString() << userInformation.value("last_name").toString());
     emit userUpdated(userInformation);
 }
 
@@ -121,27 +169,27 @@ void TDLibReceiver::processUpdateUserStatus(const QVariantMap &receivedInformati
 {
     QString userId = receivedInformation.value("user_id").toString();
     QVariantMap userStatusInformation = receivedInformation.value("status").toMap();
-    // qDebug() << "[TDLibReceiver] User status was updated: " << receivedInformation.value("user_id").toString() << userStatusInformation.value("@type").toString();
+    // LOG("User status was updated: " << receivedInformation.value("user_id").toString() << userStatusInformation.value("@type").toString());
     emit userStatusUpdated(userId, userStatusInformation);
 }
 
 void TDLibReceiver::processUpdateFile(const QVariantMap &receivedInformation)
 {
     QVariantMap fileInformation = receivedInformation.value("file").toMap();
-    qDebug() << "[TDLibReceiver] File was updated: " << fileInformation.value("id").toString();
+    LOG("File was updated: " << fileInformation.value(ID).toString());
     emit fileUpdated(fileInformation);
 }
 
 void TDLibReceiver::processFile(const QVariantMap &receivedInformation)
 {
-    qDebug() << "[TDLibReceiver] File was updated: " << receivedInformation.value("id").toString();
+    LOG("File was updated: " << receivedInformation.value(ID).toString());
     emit fileUpdated(receivedInformation);
 }
 
 void TDLibReceiver::processUpdateNewChat(const QVariantMap &receivedInformation)
 {
     QVariantMap chatInformation = receivedInformation.value("chat").toMap();
-    qDebug() << "[TDLibReceiver] New chat discovered: " << chatInformation.value("id").toString() << chatInformation.value("title").toString();
+    LOG("New chat discovered: " << chatInformation.value(ID).toString() << chatInformation.value("title").toString());
     emit newChatDiscovered(chatInformation);
 }
 
@@ -151,7 +199,7 @@ void TDLibReceiver::processUpdateUnreadMessageCount(const QVariantMap &receivedI
     messageCountInformation.insert("chat_list_type", receivedInformation.value("chat_list").toMap().value("@type"));
     messageCountInformation.insert("unread_count", receivedInformation.value("unread_count"));
     messageCountInformation.insert("unread_unmuted_count", receivedInformation.value("unread_unmuted_count"));
-    qDebug() << "[TDLibReceiver] Unread message count updated: " << messageCountInformation.value("chat_list_type").toString() << messageCountInformation.value("unread_count").toString();
+    LOG("Unread message count updated: " << messageCountInformation.value("chat_list_type").toString() << messageCountInformation.value("unread_count").toString());
     emit unreadMessageCountUpdated(messageCountInformation);
 }
 
@@ -164,74 +212,90 @@ void TDLibReceiver::processUpdateUnreadChatCount(const QVariantMap &receivedInfo
     chatCountInformation.insert("total_count", receivedInformation.value("total_count"));
     chatCountInformation.insert("unread_count", receivedInformation.value("unread_count"));
     chatCountInformation.insert("unread_unmuted_count", receivedInformation.value("unread_unmuted_count"));
-    qDebug() << "[TDLibReceiver] Unread chat count updated: " << chatCountInformation.value("chat_list_type").toString() << chatCountInformation.value("unread_count").toString();
+    LOG("Unread chat count updated: " << chatCountInformation.value("chat_list_type").toString() << chatCountInformation.value("unread_count").toString());
     emit unreadChatCountUpdated(chatCountInformation);
 }
 
 void TDLibReceiver::processUpdateChatLastMessage(const QVariantMap &receivedInformation)
 {
-    QVariantMap lastMessage = receivedInformation.value("last_message").toMap();
+    const QString chat_id(receivedInformation.value(CHAT_ID).toString());
-    qDebug() << "[TDLibReceiver] Last message of chat " << receivedInformation.value("chat_id").toString() << " updated, order " << receivedInformation.value("order").toString() << " content: " << lastMessage.value("content").toString();
+    const QString order(findChatPositionOrder(receivedInformation.value(POSITIONS).toList()));
-    emit chatLastMessageUpdated(receivedInformation.value("chat_id").toString(), receivedInformation.value("order").toString(), lastMessage);
+    const QVariantMap lastMessage = receivedInformation.value(LAST_MESSAGE).toMap();
+    LOG("Last message of chat" << chat_id << "updated, order" << order << "type" << lastMessage.value("@type").toString());
+    emit chatLastMessageUpdated(chat_id, order, lastMessage);
 }
 
 void TDLibReceiver::processUpdateChatOrder(const QVariantMap &receivedInformation)
 {
-    qDebug() << "[TDLibReceiver] Chat order updated for ID " << receivedInformation.value("chat_id").toString() << " new order: " << receivedInformation.value("order").toString();
+    const QString chat_id(receivedInformation.value(CHAT_ID).toString());
-    emit chatOrderUpdated(receivedInformation.value("chat_id").toString(), receivedInformation.value("order").toString());
+    const QString order(receivedInformation.value(ORDER).toString());
+    LOG("Chat order updated for ID" << chat_id << "to" << order);
+    emit chatOrderUpdated(chat_id, order);
+}
+
+void TDLibReceiver::processUpdateChatPosition(const QVariantMap &receivedInformation)
+{
+    const QString chat_id(receivedInformation.value(CHAT_ID).toString());
+    const QString order(receivedInformation.value(POSITION).toMap().value(ORDER).toString());
+    LOG("Chat position updated for ID" << chat_id << "new order" << order);
+    emit chatOrderUpdated(chat_id, order);
 }
 
 void TDLibReceiver::processUpdateChatReadInbox(const QVariantMap &receivedInformation)
 {
-    qDebug() << "[TDLibReceiver] Chat read information updated for " << receivedInformation.value("chat_id").toString() << " unread count: " << receivedInformation.value("unread_count").toString();
+    const QString chat_id(receivedInformation.value(CHAT_ID).toString());
-    emit chatReadInboxUpdated(receivedInformation.value("chat_id").toString(), receivedInformation.value("last_read_inbox_message_id").toString(), receivedInformation.value("unread_count").toInt());
+    const QString unread_count(receivedInformation.value(UNREAD_COUNT).toString());
+    LOG("Chat read information updated for" << chat_id << "unread count:" << unread_count);
+    emit chatReadInboxUpdated(chat_id, receivedInformation.value(LAST_READ_INBOX_MESSAGE_ID).toString(), unread_count.toInt());
 }
 
 void TDLibReceiver::processUpdateChatReadOutbox(const QVariantMap &receivedInformation)
 {
-    qDebug() << "[TDLibReceiver] Sent messages read information updated for " << receivedInformation.value("chat_id").toString() << " last read message ID: " << receivedInformation.value("last_read_outbox_message_id").toString();
+    const QString chat_id(receivedInformation.value(CHAT_ID).toString());
-    emit chatReadOutboxUpdated(receivedInformation.value("chat_id").toString(), receivedInformation.value("last_read_outbox_message_id").toString());
+    const QString last_read_outbox_message_id(receivedInformation.value(LAST_READ_OUTBOX_MESSAGE_ID).toString());
+    LOG("Sent messages read information updated for" << chat_id << "last read message ID:" << last_read_outbox_message_id);
+    emit chatReadOutboxUpdated(chat_id, last_read_outbox_message_id);
 }
 
 void TDLibReceiver::processUpdateBasicGroup(const QVariantMap &receivedInformation)
 {
-    QString basicGroupId = receivedInformation.value("basic_group").toMap().value("id").toString();
+    QString basicGroupId = receivedInformation.value("basic_group").toMap().value(ID).toString();
-    qDebug() << "[TDLibReceiver] Basic group information updated for " << basicGroupId;
+    LOG("Basic group information updated for " << basicGroupId);
     emit basicGroupUpdated(basicGroupId, receivedInformation.value("basic_group").toMap());
 }
 
 void TDLibReceiver::processUpdateSuperGroup(const QVariantMap &receivedInformation)
 {
-    QString superGroupId = receivedInformation.value("supergroup").toMap().value("id").toString();
+    QString superGroupId = receivedInformation.value("supergroup").toMap().value(ID).toString();
-    qDebug() << "[TDLibReceiver] Super group information updated for " << superGroupId;
+    LOG("Super group information updated for " << superGroupId);
     emit superGroupUpdated(superGroupId, receivedInformation.value("supergroup").toMap());
 }
 
 void TDLibReceiver::processChatOnlineMemberCountUpdated(const QVariantMap &receivedInformation)
 {
-    QString chatId = receivedInformation.value("chat_id").toString();
+    const QString chatId = receivedInformation.value(CHAT_ID).toString();
-    qDebug() << "[TDLibReceiver] Online member count updated for chat " << chatId;
+    LOG("Online member count updated for chat " << chatId);
     emit chatOnlineMemberCountUpdated(chatId, receivedInformation.value("online_member_count").toInt());
 }
 
 void TDLibReceiver::processMessages(const QVariantMap &receivedInformation)
 {
-    qDebug() << "[TDLibReceiver] Received new messages, amount: " << receivedInformation.value("total_count").toString();
+    LOG("Received new messages, amount: " << receivedInformation.value("total_count").toString());
     emit messagesReceived(receivedInformation.value("messages").toList());
 }
 
 void TDLibReceiver::processUpdateNewMessage(const QVariantMap &receivedInformation)
 {
-    QString chatId = receivedInformation.value("message").toMap().value("chat_id").toString();
+    const QString chatId = receivedInformation.value("message").toMap().value(CHAT_ID).toString();
-    qDebug() << "[TDLibReceiver] Received new message for chat " << chatId;
+    LOG("Received new message for chat " << chatId);
     emit newMessageReceived(chatId, receivedInformation.value("message").toMap());
 }
 
 void TDLibReceiver::processMessage(const QVariantMap &receivedInformation)
 {
-    QString chatId = receivedInformation.value("chat_id").toString();
+    const QString chatId = receivedInformation.value(CHAT_ID).toString();
-    QString messageId = receivedInformation.value("id").toString();
+    const QString messageId = receivedInformation.value(ID).toString();
-    qDebug() << "[TDLibReceiver] Received message " << chatId << messageId;
+    LOG("Received message " << chatId << messageId);
     emit messageInformation(messageId, receivedInformation);
 }
 
@@ -239,48 +303,48 @@ void TDLibReceiver::processMessageSendSucceeded(const QVariantMap &receivedInfor
 {
     QString oldMessageId = receivedInformation.value("old_message_id").toString();
     QVariantMap message = receivedInformation.value("message").toMap();
-    QString messageId = message.value("id").toString();
+    const QString messageId = message.value(ID).toString();
-    qDebug() << "[TDLibReceiver] Message send succeeded " << messageId << oldMessageId;
+    LOG("Message send succeeded " << messageId << oldMessageId);
     emit messageSendSucceeded(messageId, oldMessageId, message);
 }
 
 void TDLibReceiver::processUpdateActiveNotifications(const QVariantMap &receivedInformation)
 {
-    qDebug() << "[TDLibReceiver] Received active notification groups";
+    LOG("Received active notification groups");
     emit activeNotificationsUpdated(receivedInformation.value("groups").toList());
 }
 
 void TDLibReceiver::processUpdateNotificationGroup(const QVariantMap &receivedInformation)
 {
-    qDebug() << "[TDLibReceiver] Received updated notification group";
+    LOG("Received updated notification group");
     emit notificationGroupUpdated(receivedInformation);
 }
 
 void TDLibReceiver::processUpdateNotification(const QVariantMap &receivedInformation)
 {
-    qDebug() << "[TDLibReceiver] Received notification update";
+    LOG("Received notification update");
     emit notificationUpdated(receivedInformation);
 }
 
 void TDLibReceiver::processUpdateChatNotificationSettings(const QVariantMap &receivedInformation)
 {
-    QString chatId = receivedInformation.value("chat_id").toString();
+    const QString chatId = receivedInformation.value(CHAT_ID).toString();
-    qDebug() << "[TDLibReceiver] Received new notification settings for chat " << chatId;
+    LOG("Received new notification settings for chat " << chatId);
     emit chatNotificationSettingsUpdated(chatId, receivedInformation.value("notification_settings").toMap());
 }
 
 void TDLibReceiver::processUpdateMessageContent(const QVariantMap &receivedInformation)
 {
-    QString chatId = receivedInformation.value("chat_id").toString();
+    const QString chatId = receivedInformation.value(CHAT_ID).toString();
     QString messageId = receivedInformation.value("message_id").toString();
-    qDebug() << "[TDLibReceiver] Message content updated " << chatId << messageId;
+    LOG("Message content updated " << chatId << messageId);
     emit messageContentUpdated(chatId, messageId, receivedInformation.value("new_content").toMap());
 }
 
 void TDLibReceiver::processUpdateDeleteMessages(const QVariantMap &receivedInformation)
 {
-    QString chatId = receivedInformation.value("chat_id").toString();
+    const QString chatId = receivedInformation.value(CHAT_ID).toString();
     QVariantList messageIds = receivedInformation.value("message_ids").toList();
-    qDebug() << "[TDLibReceiver] Some messages were deleted " << chatId;
+    LOG("Some messages were deleted " << chatId);
     emit messagesDeleted(chatId, messageIds);
 }

src/tdlibreceiver.h

@@ -65,6 +65,9 @@ signals:
     void messagesDeleted(const QString &chatId, const QVariantList &messageIds);
 
 private:
+    typedef void (TDLibReceiver::*Handler)(const QVariantMap &);
+
+    QHash<QString, Handler> handlers;
     void *tdLibClient;
     bool isActive;
 
@@ -82,6 +85,7 @@ private:
     void processUpdateUnreadChatCount(const QVariantMap &receivedInformation);
     void processUpdateChatLastMessage(const QVariantMap &receivedInformation);
     void processUpdateChatOrder(const QVariantMap &receivedInformation);
+    void processUpdateChatPosition(const QVariantMap &receivedInformation);
     void processUpdateChatReadInbox(const QVariantMap &receivedInformation);
     void processUpdateChatReadOutbox(const QVariantMap &receivedInformation);
     void processUpdateBasicGroup(const QVariantMap &receivedInformation);