#ifndef UISTATEMODEL_H
#define UISTATEMODEL_H

#include <QObject>
#include <QUrl>
#include <QHash>

/**
 * @brief Handles state of UI by providing the qml source.
 *
 * Provides the possibility to switch between different
 * ui states such as music player or navigation.
 */
class UiStateModel : public QObject
{
    Q_OBJECT

    Q_PROPERTY(QUrl pSource READ getSource NOTIFY sourceChanged)
    Q_PROPERTY(bool pShowQuitAppButton READ isShowQuitAppButton NOTIFY profileChanged)
    Q_PROPERTY(bool pShowVolumeControls READ isShowVolumeControls NOTIFY profileChanged)

signals:
    void sourceChanged();
    void profileChanged();

public:
    /**
     * @brief Provides the possibility to configure UI according to profile.
     */
    enum EProfile : uint{
        /**
         * @brief Profile designed for running LenaPi as window manager on Raspberry Pi Touch
         *
         * Start fullscreen and do NOT show close button or volume controls
         */
        Profile_RasPiTouch = 0,
        /**
          * @brief Profiled designed for running LenaPi as a desktop app.
          *
          * Start fullscreen, show close button and volume controls.
          */
        Profile_Desktop
    };

    explicit UiStateModel(QObject *parent = nullptr);

    /**
     * @brief setProfile
     * @param profileString String identifying profile as read from config.
     *
     * Known profile strings are "RasPiTouch" and "Desktop".
     */
    void setProfile(const QString& profileString){ setProfile(getProfileFromString(profileString)); }
    void setProfile(EProfile profile);

    bool isShowQuitAppButton() const;
    bool isShowVolumeControls() const;

    QUrl getSource() const;

    void showMusicPlayer();
    void showNavigation();

private:
    /**
     * @brief Container defining ui state inforamtion for a certain profile
     */
    struct ProfileInfo{
      EProfile profileType = Profile_RasPiTouch;
      bool isShowQuitAppButton = false;
      bool isShowVolumeControls = false;
    };
    /**
     * @brief Map containing ProfileInfo for each profile
     */
    QHash<EProfile, ProfileInfo> mProfileInfoMap;
    /**
     * @brief Init ProfileInfo for all known profiles and init mProfileInfoMap
     */
    void initProfiles();
    /**
     * @brief Transform given profile string to enum valie
     * @param profileString String identifying profile
     * @return Matching profile. If given string does not match a known profile, Profile_RasPiTouch is used as default.
     */
    static EProfile getProfileFromString(const QString& profileString);
    QUrl mSource;
    EProfile mProfile = Profile_RasPiTouch;
};

#endif // UISTATEMODEL_H