#include "Core/recognizesystem.h"

RecognizeSystem::RecognizeSystem(QObject *parent):
    QObject(parent)
{
    packetType = PacketType::TYPE_NONE;
    filePath.clear();
    fileSize = 0;
    message.clear();
    sizeReceiveData = 0;
    tmpBlock.clear();
    countSend = 0;
}

RecognizeSystem::~RecognizeSystem()
{

}

void RecognizeSystem::Initialize(UpdateController *updateController)
{
    this->updateController = updateController;
}

void RecognizeSystem::SetSocket(QTcpSocket *socket)
{
    this->socket = socket;
}

void RecognizeSystem::Recognize()
{
    QDataStream stream(socket);
    stream.setVersion(QDataStream::Qt_DefaultCompiledVersion);

    while(socket->bytesAvailable())
    {

        if(packetType == PacketType::TYPE_NONE){    //определение первичного пакета

            stream.startTransaction();
            stream >> packetType;

            if(!stream.commitTransaction()){
                emit onSendDebugLog(Tools::GetTime() + " CLIENT: packetType - FAIL commitTransaction");

                if(socket->waitForReadyRead(TCP_READ_TIMEOUT)){
                    emit onSendDebugLog("ERROR: PACKET TYPE READ TIMEOUT");
                    return;
                }
                continue;

            }

            //qDebug() << Tools::GetTime() << "CLIENT: type: " << packetType;
        }

        if(packetType == PacketType::TYPE_MSG){     //поведение на тип пакета с сообщением

            stream.startTransaction();
            stream >> message;

            if(!stream.commitTransaction()){
                emit onSendDebugLog(Tools::GetTime() + "CLIENT: Message - FAIL commitTransaction");
                if(socket->waitForReadyRead(TCP_READ_TIMEOUT)){
                    emit onSendDebugLog(Tools::GetTime() + "ERROR: MESSAGE READ TIMEOUT");
                    return;
                }
                continue;
            }

            emit onSendDebugLog(Tools::GetTime() + " CLIENT: Message from server " + message);    //результат обрабатывать тут?
            packetType = PacketType::TYPE_NONE;
            continue;
        }

        if(packetType == PacketType::TYPE_FOLDER){  //создание папок
            stream.startTransaction();
            stream >> filePath;

            if(!stream.commitTransaction()){
                continue;
            }

            filePath = Tools::CreateFullPath(filePath);

            QDir dir(filePath);
            if(!dir.exists()){
                if(dir.mkpath(filePath)){
                    qDebug() << "Dir Created";
                }
            }

            packetType = PacketType::TYPE_NONE;
            continue;
        }

        if(packetType == PacketType::TYPE_FILE)     //загрузка файлов
        {

            //ПОЛУЧЕНИЕ ПУТИ
            //ПОЛУЧЕНИЕ РАЗМЕРА ФАЙЛА
            forever
            {
                stream.startTransaction();
                stream >> filePath;
                stream >> fileSize;

                if(!stream.commitTransaction()){
                    emit onSendDebugLog(Tools::GetTime() + "CLIENT: filePath, fileSize - FAIL commitTransaction");

                    if (!socket->waitForReadyRead(TCP_READ_TIMEOUT)) {
                           emit onSendDebugLog(Tools::GetTime() + "CLIENT: ERROR! readyRead timeout - filePath, fileSize!!!");
                           return;
                }
                    continue;

            }

                filePath = Tools::CreateFullPath(filePath);

               emit onSendDebugLog("CLIENT: filesize: " + QString::number(fileSize));
               emit onSendDebugLog("CLIENT: filePath: " + filePath);

                socket->waitForReadyRead(100);
                break;
            }


            //ПОЛУЧЕНИЕ САМОГО ФАЙЛА
            emit onSendDebugLog(Tools::GetTime() + "AfterRead size and path BytesAvailable: " + socket->bytesAvailable());

            //УКАЗАНИЕ ПУТИ ФАЙЛА
            QFile file(filePath);

            if (file.exists())
            {
                file.remove();  //удаление файла, если он уже есть, но необходимо обновить
                emit onSendDebugLog(Tools::GetTime() + "Delete exist file: " + filePath);
            }



            file.open(QFile::Append);

            forever
            {
                stream.startTransaction();
                stream >> tmpBlock;

                if(!stream.commitTransaction()){
                    //qDebug() << Tools::GetTime() << "CLIENT: tmpBlock - FAIL";
                    if(socket->waitForReadyRead(TCP_READ_TIMEOUT)){
                        continue;
                    }

                    continue;
                }

                quint64 toFile = file.write(tmpBlock);
               emit onSendDebugLog(Tools::GetTime() + "CLIENT: toFile :" + toFile);

                sizeReceiveData += toFile;
                countSend++;

                emit UpdateBytesAvailable(fileSize,sizeReceiveData);

                tmpBlock.clear();

                if(sizeReceiveData == fileSize){
                    emit onSendDebugLog(Tools::GetTime() + "FINAL Count send: " + QString::number(countSend));
                    emit onSendDebugLog(Tools::GetTime() + "FINAL Size received: " + QString::number(sizeReceiveData));
                    emit onSendDebugLog(Tools::GetTime() + "FINAL File size" + QString::number(fileSize));
                    break;
                }
            }

            file.close();
            emit onSendDebugLog(Tools::GetTime() + "File loaded");

            //ОЧИСТКА ПОСЛЕ ПЕРЕДАЧИ

            filePath.clear();
            fileSize = 0;
            tmpBlock.clear();
            sizeReceiveData = 0;
            countSend = 0;
        }

        if(packetType == PacketType::TYPE_DELETE)   //удаление лишних файлов (рекурсивно удаляет все содежимое)
        {
            stream.startTransaction();
            stream >> filePath;

            if(!stream.commitTransaction()){
                continue;
            }

            filePath = Tools::CreateFullPath(filePath);

            QFileInfo fileInfo(filePath);


            if(fileInfo.exists())
            {
                if(fileInfo.isFile()){
                    QFile file(filePath);
                    file.remove();
                }

                if(fileInfo.isDir()){
                    QDir dir(filePath);
                    dir.removeRecursively();
                }

                qDebug() << Tools::GetTime() << "Deleted: " << filePath;
            }

            packetType = PacketType::TYPE_NONE;
            continue;

        }

        if(packetType ==PacketType::TYPE_FINISH){   //для повторного создания хэша после загрузки
            updateController->CalculateHash();
            emit LoadComplete();
            packetType = PacketType::TYPE_NONE;
        }

        if(packetType == PacketType::TYPE_NEEDUPDATE){

            bool flag;

            stream.startTransaction();
            stream >> flag;


            emit onNeedUpdate(flag);
            packetType = PacketType::TYPE_NONE;
        }
        packetType = PacketType::TYPE_NONE;
    }
}