#ifndef APPINFOTABLE_H
#define APPINFOTABLE_H

#include <QObject>
#include <QSqlQuery>
#include <QDir>
#include "application-property.h"

namespace UkuiSearch {

const static QString APP_DATABASE_PATH = QDir::homePath()+"/.config/org.ukui/ukui-search/appdata/";
const static QString APP_DATABASE_NAME = "app-info.db";

class AppInfoTablePrivate;
class AppInfoTable : public QObject
{
    Q_OBJECT
public:
    static AppInfoTable* self();

    AppInfoTable(AppInfoTable &) = delete;
    AppInfoTable &operator =(const AppInfoTable &) = delete;
    bool query(PropertyMap &propertyMap, const QString &desktopFile, Properties properties);
    bool query(ApplicationInfoMap &infoMap, Properties properties);
    bool query(ApplicationInfoMap &infoMap, Properties properties, PropertyMap restrictions);
    bool query(ApplicationInfoMap &infoMap, Properties properties, const QString &keyword, PropertyMap restrictions);
    bool query(ApplicationInfoMap &infoMap, Properties properties, const QStringList &keywords, PropertyMap restrictions);

    /**
     * @brief AppInfoTable::setAppFavoritesState
     * set the favorites state of the app
     * @param desktopfp: the desktop file path of app
     * @param num: the favorites app's order(from 1)
     */
    void setAppFavoritesState(const QString &desktopfp, size_t num);

    /**
     * @brief AppInfoTable::setAppTopState
     * set the top state of the app
     * @param desktopfp: the desktop file path of app
     * @param num: the top app's order(from 1)
     */
    void setAppTopState(const QString &desktopfp, size_t num);

    /**
     * @brief AppInfoTable::changeFavoriteAppPos
     * change the position of the app which is one of the Favorites Apps
     * @param desktopfp: desktop file path of app
     * @param pos: the position which the app will be changed into
     */
    bool changeFavoriteAppPos(const QString &desktopfp, size_t pos);

    /**
     * @brief AppInfoTable::changeTopAppPos
     * hange the position of the app which is one of the Top Apps
     * @param desktopfp: desktop file path of app
     * @param pos: the position which the app will be changed into
     * @return bool: true if success, else false
     */
    bool changeTopAppPos(const QString &desktopfp, size_t pos);

    bool searchInstallApp(QString &keyWord, QStringList &installAppInfoRes);
    bool searchInstallApp(QStringList &keyWord, QStringList &installAppInfoRes);


    /**
     * @brief AppInfoTable::lastError
     * the last error of the database
     * @return QString: the text of the last error
     */
    QString lastError(void) const;

    /**
     * @brief AppInfoTable::tranPid2DesktopFp
     * find the desktop file path of the process which corresponds to the pid
     * @param pid: the pid of the process which need to get its desktop file path
     * @param desktopfp: the desktop file path of the process corresponding to pid
     * @return bool:true if success,else false
     */
    bool tranPidToDesktopFp(int pid, QString &desktopfp);

private:
    //暂不外放的接口
    bool setAppLaunchTimes(const QString &desktopfp, size_t num);
    bool setAppLockState(const QString &desktopfp, size_t num);
    bool updateAppLaunchTimes(const QString &desktopfp);

private:
    explicit AppInfoTable(QObject *parent = nullptr);
    AppInfoTablePrivate *d;

Q_SIGNALS:
    void DBOpenFailed();
    void appDBItems2BUpdate(ApplicationInfoMap);
    void appDBItems2BUpdateAll(QStringList);
    void appDBItems2BAdd(QStringList);
    void appDBItems2BDelete(QStringList);
};
}

#endif // APPINFOTABLE_H