#include "SystemConfig.h"
#include "GeneralMessagesLogDispatcher.h"

CSystemConfig::CSystemConfig()
{

}

int CSystemConfig::LoadConfig(QList<CCANDevice *> *DevicesList)
{

    CGeneralMessagesLogDispatcher::instance()->AddLogMessage(QString("Chargement de la configuration système..."));
    if(DevicesList == 0)
    {
        qDebug("CSystemConfig: Trying to load a config into an invalid devices list");
        CGeneralMessagesLogDispatcher::instance()->AddLogMessage(QString("Échec de sauvegarde de la config système.  Pointeur vers liste de devices invalide!!!"),true,CGeneralMessagesLogDispatcher::GEN_MSG_TXT_ERROR_STATUS);
        return RET_GENERAL_ERROR;
    }

    QFile* ConfigFile = new QFile("./Config/Station.cfg");
    if(ConfigFile)
    {
        if(ConfigFile->open(QIODevice::ReadOnly | QIODevice::Unbuffered) == false)
        {
//            LoadDefaultSettings(Settings);
//            SaveSettings(Settings);
            qDebug("CSystemConfig: Failed to open config file in config loading");
            CGeneralMessagesLogDispatcher::instance()->AddLogMessage(QString("Échec de sauvegarde de la config système.  Impossible d'ouvrir le fichier /Config/Station.cfg"),true,CGeneralMessagesLogDispatcher::GEN_MSG_TXT_ERROR_STATUS);
            return RET_GENERAL_ERROR;
        }
    }
    else
    {
   //     LoadDefaultSettings(Settings);
        CGeneralMessagesLogDispatcher::instance()->AddLogMessage(QString("Échec de sauvegarde de la config système.  Pointeur vers QFile invalide !!!"),true,CGeneralMessagesLogDispatcher::GEN_MSG_TXT_ERROR_STATUS);
        qDebug("CSystemConfig: Invalid QFile pointer in config loading...");
        return RET_GENERAL_ERROR;
    }

    QDataStream * InputStream = new QDataStream(ConfigFile);

    quint32 MagicNbr;// = 0xBAADCAFE;
    quint32 FileVersion;


    *InputStream >> MagicNbr;
    if(MagicNbr != OTARCIK_CONFIG_FILE_MAGIC_NBR)
    {
    //    LoadDefaultSettings(Settings);
        return RET_GENERAL_ERROR;
    }

    *InputStream >> FileVersion;

    int NbDevices;
    *InputStream >> NbDevices;
    for(int i = 0; i < NbDevices; i++)
    {
        CCANDevice *NewDevice = new CCANDevice;
        *InputStream >> *NewDevice;
        DevicesList->append(NewDevice);
    }


    ConfigFile->close();
    delete ConfigFile;
    delete InputStream;

    CGeneralMessagesLogDispatcher::instance()->AddLogMessage(QString("Configuration système chargée avec succès!"));
    return RET_OK;
}

int CSystemConfig::SaveConfig(QList<CCANDevice *> *DevicesList)
{
    CGeneralMessagesLogDispatcher::instance()->AddLogMessage(QString("Sauvegarde de la configuration système..."));

    QFile *ConfigFile = new QFile("./Config/Station.cfg");
    if(ConfigFile)
    {
        if(ConfigFile->open(QIODevice::WriteOnly | QIODevice::Unbuffered) == false)
        {
            CGeneralMessagesLogDispatcher::instance()->AddLogMessage(QString("Échec de sauvegarde de la config système.  Impossible d'ouvrir le fichier /Config/Station.cfg"),true,CGeneralMessagesLogDispatcher::GEN_MSG_TXT_ERROR_STATUS);
            return RET_GENERAL_ERROR;
        }
    }
    else
    {
       CGeneralMessagesLogDispatcher::instance()->AddLogMessage(QString("Échec de sauvegarde de la config système.  Pointeur vers QFile invalide !!!"),true,CGeneralMessagesLogDispatcher::GEN_MSG_TXT_ERROR_STATUS);
       return RET_GENERAL_ERROR;
    }


    QDataStream * OutputStream = new QDataStream(ConfigFile);

    quint32 MagicNbr = OTARCIK_CONFIG_FILE_MAGIC_NBR;
    quint32 FileVersion = OTARCIK_CURRENT_CONFIG_FILE_VERSION;

    //Setup the config file header
    *OutputStream << MagicNbr;
    *OutputStream << FileVersion;

    //Save the CAN devices config info
    *OutputStream << DevicesList->size();   //Number of devices
    for(int i = 0; i < DevicesList->size(); i++)
    {
        *OutputStream << *DevicesList->at(i);   //Add each device info to config file
    }

    ConfigFile->flush();
    ConfigFile->close();

    delete ConfigFile;
    delete OutputStream;

    CGeneralMessagesLogDispatcher::instance()->AddLogMessage(QString("Configuration système sauvegardée avec succès."));

    return RET_OK;
}