#ifndef THEME_H
#define THEME_H

#include "AccentColor.h"
#include "Utilities.h"
#include <QColor>
#include <QFileSystemWatcher>
#include <QMutex>
#include <QObject>
#include <QQmlEngine>

class Theme : public QObject {
    Q_OBJECT
    QML_ELEMENT
    QML_SINGLETON
    Q_PROPERTY(bool dark READ dark NOTIFY darkChanged)
    Q_PROPERTY_AUTO_P(AccentColor *, accentColor)
    Q_PROPERTY_AUTO(int, darkMode)
    Q_PROPERTY_AUTO(QColor, primaryColor)
    Q_PROPERTY_AUTO(QColor, backgroundColor)
    Q_PROPERTY_AUTO(QColor, dividerColor)
    Q_PROPERTY_AUTO(QColor, itemPressColor)
    Q_PROPERTY_AUTO(bool, nativeText)
    Q_PROPERTY_AUTO(bool, animationEnabled)
    Q_PROPERTY(QColor fontPrimaryColor READ fontPrimaryColor WRITE setFontPrimaryColor NOTIFY fontPrimaryColorChanged)
    Q_PROPERTY_AUTO(QColor, fontSecondaryColor)
    Q_PROPERTY_AUTO(QColor, fontTertiaryColor)
    Q_PROPERTY_AUTO(QColor, frameColor)
    Q_PROPERTY_AUTO(QColor, frameActiveColor)
    Q_PROPERTY_AUTO(QColor, itemCheckColor)
    Q_PROPERTY(QColor itemNormalColor READ itemNormalColor WRITE setItemNormalColor NOTIFY itemNormalColorChanged)
    Q_PROPERTY(QColor itemHoverColor READ itemHoverColor WRITE setItemHoverColor NOTIFY itemHoverColorChanged)

    Q_PROPERTY(QColor windowBackgroundColor READ windowBackgroundColor WRITE setWindowBackgroundColor NOTIFY
                   windowBackgroundColorChanged)
    Q_PROPERTY(QColor windowActiveBackgroundColor READ windowActiveBackgroundColor WRITE setWindowActiveBackgroundColor
                   NOTIFY windowActiveBackgroundColorChanged)

    Q_PROPERTY(QString desktopImagePath READ desktopImagePath WRITE setDesktopImagePath NOTIFY desktopImagePathChanged)
    Q_PROPERTY(bool blurBehindWindowEnabled READ blurBehindWindowEnabled WRITE setBlurBehindWindowEnabled NOTIFY
                   blurBehindWindowEnabledChanged)

public:
    static Theme *instance();
    static Theme *create(QQmlEngine *, QJSEngine *);
    bool dark() const;

    QColor fontPrimaryColor() const;
    void setFontPrimaryColor(const QColor &color);

    QColor itemNormalColor() const;
    void setItemNormalColor(const QColor &color);

    QColor itemHoverColor() const;
    void setItemHoverColor(const QColor &color);

    QColor windowBackgroundColor() const;
    void setWindowBackgroundColor(const QColor &color);

    QColor windowActiveBackgroundColor() const;
    void setWindowActiveBackgroundColor(const QColor &color);

    QString desktopImagePath() const;
    void setDesktopImagePath(const QString &path);

    bool blurBehindWindowEnabled() const;
    void setBlurBehindWindowEnabled(bool enabled);

signals:
    void darkChanged();
    void fontPrimaryColorChanged();
    void itemNormalColorChanged();
    void windowBackgroundColorChanged();
    void windowActiveBackgroundColorChanged();
    void desktopImagePathChanged();
    void blurBehindWindowEnabledChanged();
    void itemHoverColorChanged();

protected:
    Theme(QObject *parent = nullptr);
    void refreshColors();
    void checkUpdateDesktopImage();
    void timerEvent(QTimerEvent *event) final;
    bool eventFilter(QObject *obj, QEvent *event) final;

private:
    bool m_systemDark = false;
    QMutex m_mutex;
    QFileSystemWatcher m_watcher;
    QColor m_fontPrimaryColor;
    QColor m_itemNormalColor;
    QColor m_itemHoverColor;
    QColor m_windowBackgroundColor;
    QColor m_windowActiveBackgroundColor;

    QString m_desktopImagePath;
    bool m_blurBehindWindowEnabled;
};

#endif // THEME_H