#include "workerfactory.h"
#include <QString>

Worker::Worker() :
    QObject(nullptr)
{}

Worker::~Worker()
{}

//
/**
 * @brief 环境检测
 */
void Worker::checkEnv()
{
    checkEnvEx();
}

/**
 * @brief 任务处理
 */
void Worker::doWork()
{
    doWorkEx();
}

/**
 * @brief 任务取消
 */
void Worker::cancel()
{
    cancelEx();
}

// 环境检测，个性化部分派生类去实现
bool Worker::checkEnvEx()
{
    return true;
}

// 任务处理，个性化部分派生类去实现
void Worker::doWorkEx()
{}

// 任务取消，个性化部分派生类去实现
void Worker::cancelEx()
{}

/**
 * @brief 根据操作类型和位置创建相应的处理类
 * @param type 操作类型，如：系统备份, 系统还原
 * @param position 本地备份还是U盘备份: 0-本地备份；1-移动设备备份
 * @return Worker派生类对象指针，需调用者释放此对象
 */
Worker * WorkerFactory::createWorker(int type, int position)
{
    QString className;
    switch (type) {
    case BackupType::BACKUP_SYSTEM:
    case BackupType::INC_BACKUP_SYSTEM:
        if (BackupPosition::UDISK == position) {
            className = "UDiskSystemBackupProxy";
        } else {
            className = "SystemBackupProxy";
        }
        break;
    case BackupType::AUTO_BACKUP_SYSTEM:
        className = "AutoSystemBackupProxy";
        break;
    case BackupType::RESTORE_SYSTEM:
    case BackupType::RESTORE_SYSTEM_WITH_DATA:
        if (BackupPosition::UDISK == position) {
            className = "UDiskSystemRestoreProxy";
        } else {
            className = "SystemRestoreProxy";
        }
        break;
    case BackupType::BACKUP_DATA:
    case BackupType::INC_BACKUP_DATA:
        if (BackupPosition::UDISK == position) {
            className = "UDiskDataBackupProxy";
        } else {
            className = "DataBackupProxy";
        }
        break;
    case BackupType::RESTORE_DATA:
        if (BackupPosition::UDISK == position) {
            className = "UDiskDataRestoreProxy";
        } else {
            className = "DataRestoreProxy";
        }
        break;
    case BackupType::DELETE_BACKUP:
        className = "DeleteBackupProxy";
        break;
    case BackupType::GHOST_IMAGE:
        if (BackupPosition::UDISK == position) {
            className = "UDiskGhostProxy";
        } else {
            className = "GhostProxy";
        }
        break;
    default:
        break;
    }

    if (className.isEmpty()) {
        return nullptr;
    }

    Worker * p = qobject_cast<Worker *>(Reflect::createObject(className));
    return p;
}