#include "maindialog.h"
#include "ui_maindialog.h"

#include <QMenu>
#include <QProcess>
#include <QMessageBox>
#include <KWindowSystem>
#include <unistd.h>

#include "../common/mydefine.h"
#include "module/systembackup.h"
#include "module/systemrestore.h"
#include "module/databackup.h"
#include "module/datarestore.h"
#include "module/operationlog.h"
#include "backup_manager_interface.h"
#include "globalbackupinfo.h"
#include "messageboxutils.h"

MainDialog::MainDialog(QWidget *parent)
    : QMainWindow(parent)
    , ui(new Ui::MainDialog)
{
    ui->setupUi(this);
    initUI();
    initConnect();

    // 注册BackupWrapper类型，之后qdbus接口才能使用
    BackupWrapper::registerMetaType();
    mountBackupPartition();
}

MainDialog::~MainDialog()
{
    delete ui;
}

void MainDialog::initUI()
{
    m_totalHLayout = new QHBoxLayout(ui->centralwidget);
    m_totalHLayout->setSpacing(0);
    m_totalHLayout->setObjectName(QString::fromUtf8("m_totalHLayout"));
    m_totalHLayout->setContentsMargins(0, 0, 0, 0);
    ui->centralwidget->setLayout(m_totalHLayout);

    if (GlobelBackupInfo::inst().isManager())
        m_leftSiderBarWidget = new LeftsiderbarWidget(ui->centralwidget);
    else
        m_leftSiderBarWidget = new LeftsiderbarWidget(ui->centralwidget, LeftsiderbarWidget::StartMode::std_user);
    m_leftSiderBarWidget->setObjectName(QString::fromUtf8("m_leftSiderBarWidget"));
    m_leftSiderBarWidget->setGeometry(QRect(0, 0, 200, 640));
    m_leftSiderBarWidget->setFixedSize(QSize(200, 640));

    m_totalHLayout->addWidget(m_leftSiderBarWidget);

    m_rightVLayout = new QVBoxLayout();
    m_rightVLayout->setObjectName(QString::fromUtf8("m_rightVLayout"));
    m_rightVLayout->setContentsMargins(0, 0, 0, 0);

    m_titleWidget = new QWidget(ui->centralwidget);
    m_titleWidget->setObjectName(QString::fromUtf8("m_titleWidget"));
    m_titleWidget->setGeometry(QRect(201, 0, 760, 40));
    m_rightVLayout->addWidget(m_titleWidget);

    if (!GlobelBackupInfo::inst().isManager())
        selected(FuncTypeConverter::FunType::BACKUP_DATA);
    else if (GlobelBackupInfo::inst().hasArgRestore())
        selected(FuncTypeConverter::FunType::RESTORE_SYSTEM);
    else
        selected(FuncTypeConverter::FunType::BACKUP_SYSTEM);

    m_totalHLayout->addLayout(m_rightVLayout);

    initTileBar();
    initStyleSheet();
}

void MainDialog::initTileBar()
{
    m_titleLayout = new QHBoxLayout;
    m_titleWidget->setLayout(m_titleLayout);
    m_titleLayout->setContentsMargins(8, 4, 4, 0);
    m_titleLayout->setSpacing(0);

    m_menuOptionBtn  = new QToolButton(m_titleWidget);
    m_minBtn      = new QPushButton(m_titleWidget);
    m_closeBtn    = new QPushButton(m_titleWidget);

    m_menuOptionBtn->setToolTip(tr("Main menu"));
    m_minBtn->setToolTip(tr("Minimize"));
    m_closeBtn->setToolTip(tr("Close"));

    m_menuOptionBtn->setFixedSize(30, 30);
    m_minBtn->setFixedSize(30, 30);
    m_closeBtn->setFixedSize(30, 30);

    QMenu* backupMain = new QMenu(this);
    backupMain->setObjectName("mainMenu");
    m_menuOptionBtn->setMenu(backupMain);

    QAction* backupTheme = new QAction(tr("Theme"),this);
    backupMain->addAction(backupTheme);
    QMenu* selectTheme = new QMenu(this);
    selectTheme->setObjectName("selectTheme");
    backupTheme->setMenu(selectTheme);
    QAction* defaultTheme = new QAction(tr("Auto"),this);
    selectTheme->addAction(defaultTheme);
    QAction* darkTheme = new QAction(tr("Dark"),this);
    selectTheme->addAction(darkTheme);
    QAction* lightTheme = new QAction(tr("Light"),this);
    selectTheme->addAction(lightTheme);

    m_backupHelp = new QAction(tr("Help"),this);
    backupMain->addAction(m_backupHelp);
    m_backupAbout = new QAction(tr("About"),this);
    backupMain->addAction(m_backupAbout);
    m_backupExit = new QAction(tr("Exit"),this);
    backupMain->addAction(m_backupExit);

    m_titleLayout->addStretch();
    m_titleLayout->addWidget(m_menuOptionBtn);
    m_titleLayout->addSpacing(4);
    m_titleLayout->addWidget(m_minBtn);
    m_titleLayout->addSpacing(4);
    m_titleLayout->addWidget(m_closeBtn);
}

void MainDialog::initStyleSheet()
{
    // 主窗口
    // qApp->setWindowIcon(QIcon::fromTheme(THEME_YHKYLIN_BACKUP_TOOLS));
    this->setWindowTitle(tr("Backup & Restore"));

    // 工作区（此处代码加不加一个样，注释掉，留着学习，知道有这么回事）
    //ui->centralwidget->setStyleSheet("QWidget#centralWidget{background: palette(base); border-radius: 6px;}");
    //ui->centralwidget->setAttribute(Qt::WA_TranslucentBackground);

    // 右侧title
    // setStyleSheet方式設置樣式不能跟隨主題
    // m_titleWidget->setStyleSheet("QWidget#m_titleWidget{background-color:palette(base)}");
    m_titleWidget->setAutoFillBackground(true);
    QPalette palette = m_titleWidget->palette();
    palette.setColor(QPalette::Background, palette.color(QPalette::Base));
    m_titleWidget->setPalette(palette);

    // m_menuOptionBtn->setStyleSheet("background-color: palette(base);");
    m_menuOptionBtn->setProperty("isWindowButton", 0x1);
    m_menuOptionBtn->setProperty("useIconHighlightEffect", 0x2);
    m_menuOptionBtn->setIcon(QIcon::fromTheme("open-menu-symbolic"));
    m_menuOptionBtn->setAutoRaise(true);
    m_menuOptionBtn->setPopupMode(QToolButton::InstantPopup);
    // m_menuOptionBtn->setProperty("setIconHighlightEffectDefaultColor", m_closeBtn->palette().color(QPalette::Active, QPalette::Base));

    m_minBtn->setProperty("isWindowButton", 0x1);
    m_minBtn->setProperty("useIconHighlightEffect", 0x2);
    m_minBtn->setFlat(true);
    m_minBtn->setIcon(QIcon::fromTheme("window-minimize-symbolic"));
    // m_minBtn->setProperty("setIconHighlightEffectDefaultColor", m_closeBtn->palette().color(QPalette::Active, QPalette::Base));

    m_closeBtn->setProperty("isWindowButton", 0x2);
    m_closeBtn->setProperty("useIconHighlightEffect", 0x8);
    m_closeBtn->setFlat(true);
    m_closeBtn->setIcon(QIcon::fromTheme("window-close-symbolic"));
    // m_closeBtn->setProperty("setIconHighlightEffectDefaultColor",  m_closeBtn->palette().color(QPalette::Active, QPalette::Base));

}

void MainDialog::initConnect()
{
    // 左侧功能选择栏
    connect(m_leftSiderBarWidget, &LeftsiderbarWidget::selected, this, &MainDialog::selected);

    // 标题栏右侧按钮区域
    // 退出
    connect(m_backupExit, &QAction::triggered, this, &MainDialog::closeBtn);

    // 关于
    connect(m_backupAbout, &QAction::triggered, this, [=] {
        // UkccAbout *ukcc = new UkccAbout(this);
        // ukcc->exec();
    });

    connect(m_backupHelp, &QAction::triggered, this, [=] {
        QProcess process(this);
        process.startDetached("kylin-user-guide -A kybackup");
    });

    //最小化按钮
    connect(m_minBtn, &QPushButton::clicked, this, &MainDialog::showMinimized);

    //关闭按钮
    connect(m_closeBtn, &QPushButton::clicked, this, &MainDialog::closeBtn);
}

/**
 * @brief 左侧功能选择栏响应槽
 * @param func_type，功能类型
 */
void MainDialog::selected(int func_type)
{
    if (GlobelBackupInfo::inst().getFuncType() == func_type)
        return ;

    if (m_stackedWidget) {
        m_rightVLayout->removeWidget(m_stackedWidget);
        delete m_stackedWidget;
    }

    switch (func_type) {
    case FuncTypeConverter::FunType::BACKUP_SYSTEM:
        m_stackedWidget = new SystemBackup(ui->centralwidget);
        GlobelBackupInfo::inst().setFuncType(FuncTypeConverter::FunType::BACKUP_SYSTEM);
        break;
    case FuncTypeConverter::FunType::RESTORE_SYSTEM:
        m_stackedWidget = new SystemRestore(ui->centralwidget);
        GlobelBackupInfo::inst().setFuncType(FuncTypeConverter::FunType::RESTORE_SYSTEM);
        break;
    case FuncTypeConverter::FunType::BACKUP_DATA:
        m_stackedWidget = new DataBackup(ui->centralwidget);
        GlobelBackupInfo::inst().setFuncType(FuncTypeConverter::FunType::BACKUP_DATA);
        break;
    case FuncTypeConverter::FunType::RESTORE_DATA:
        m_stackedWidget = new DataRestore(ui->centralwidget);
        GlobelBackupInfo::inst().setFuncType(FuncTypeConverter::FunType::RESTORE_DATA);
        break;
    case FuncTypeConverter::FunType::OPERATION_LOG:
        m_stackedWidget = new OperationLog(ui->centralwidget);
        GlobelBackupInfo::inst().setFuncType(FuncTypeConverter::FunType::OPERATION_LOG);
        break;
    default:
        m_stackedWidget = new SystemBackup(ui->centralwidget);
        GlobelBackupInfo::inst().setFuncType(FuncTypeConverter::FunType::BACKUP_SYSTEM);
        break;
    }

    m_stackedWidget->setObjectName(QString::fromUtf8("m_stackedWidget"));
    m_stackedWidget->setGeometry(QRect(201, 40, 760, 600));
    m_rightVLayout->addWidget(m_stackedWidget);

    // 右侧内容区域
    // m_stackedWidget->setStyleSheet("QStackedWidget#m_stackedWidget{background: palette(base); border-bottom-left-radius: 6px; border-bottom-right-radius: 6px;}");
    m_stackedWidget->setAutoFillBackground(true);
    QPalette palette = m_stackedWidget->palette();
    palette.setColor(QPalette::Background, palette.color(QPalette::Base));
    m_stackedWidget->setPalette(palette);
}

/**
 * @brief 多例启动信息槽
 * @param msg 信息，里面存放新启动实例的账户id
 */
void MainDialog::sltMessageReceived(const QString &msg)
{
    QString user = QString::number(getuid());
    if (msg == user) {
//        this->setWindowFlag(Qt::WindowStaysOnTopHint,true);
//        this->setWindowFlag(Qt::WindowStaysOnTopHint,false);
        KWindowSystem::forceActiveWindow(this->winId());
        this->show();
    }
}

void MainDialog::mountBackupPartition()
{
    // 挂载/backup分区
    ComKylinBackupManagerInterface intf("com.kylin.backup", "/", QDBusConnection::systemBus());
    QDBusPendingReply<int> reply = intf.Mount_backup_partition();
    reply.waitForFinished();
    if (reply.isError()) {
        // 挂载分区时出现异常
        MessageBoxUtils::QMESSAGE_BOX_WARNING(this, QObject::tr("Warning"),
                                              QObject::tr("An exception occurred when mounting backup partition."),
                                              QObject::tr("Ok"));

        closeBtn();
    } else if (int(MountResult::CANNOT_GET_BACKUPUUID) == reply.value()) {
        // 没有找到备份分区，只能备份到移动设备中
        MessageBoxUtils::QMESSAGE_BOX_WARNING(this, QObject::tr("Warning"),
                                              QObject::tr("There's no backup partition, can only backup to removable device."),
                                              QObject::tr("Ok"));

        GlobelBackupInfo::inst().setHasBackupPartition(false);
    } else if (int(MountResult::MOUNTED) != reply.value()) {
        // 挂载备份分区失败
        MessageBoxUtils::QMESSAGE_BOX_WARNING(this, QObject::tr("Warning"),
                                              QObject::tr("Failed to mount backup partition."),
                                              QObject::tr("Ok"));

        closeBtn();
    }
}

void MainDialog::umountBackupPartition()
{
    // 卸载/backup分区
    ComKylinBackupManagerInterface intf("com.kylin.backup", "/", QDBusConnection::systemBus());
    intf.umountBackupPartition();
}

void MainDialog::closeBtn()
{
    if (GlobelBackupInfo::inst().isBusy()) {
        // 系统正忙，请稍等
        MessageBoxUtils::QMESSAGE_BOX_WARNING(this, QObject::tr("Warning"),
                                              QObject::tr("It's busy, please wait"),
                                              QObject::tr("Ok"));

        return;
    }

    if (GlobelBackupInfo::inst().hasBackupPartition())
        umountBackupPartition();

    this->close();
    qApp->quit();
}