#ifndef OLLIE_THEME_MANAGER_H
#define OLLIE_THEME_MANAGER_H

#include <QObject>
#include <QPalette>
#include <QSettings>
#include <QFileSystemWatcher>
#include <KConfigWatcher>
#include <KSharedConfig>
#include <QColor>
#include <QStringList>
#include <QFont>
#include <QVariant>

class ThemeManager : public QObject
{
    Q_OBJECT
    Q_PROPERTY(QString mode READ mode WRITE setMode NOTIFY modeChanged)
    Q_PROPERTY(QStringList availableSchemes READ availableSchemes CONSTANT)
    Q_PROPERTY(bool isDark READ isDark NOTIFY paletteChanged)
    Q_PROPERTY(bool overriding READ overriding NOTIFY paletteChanged)

    // Palette color properties for QML binding
    Q_PROPERTY(QColor windowColor READ windowColor NOTIFY paletteChanged)
    Q_PROPERTY(QColor windowTextColor READ windowTextColor NOTIFY paletteChanged)
    Q_PROPERTY(QColor baseColor READ baseColor NOTIFY paletteChanged)
    Q_PROPERTY(QColor alternateBaseColor READ alternateBaseColor NOTIFY paletteChanged)
    Q_PROPERTY(QColor textColor READ textColor NOTIFY paletteChanged)
    Q_PROPERTY(QColor buttonColor READ buttonColor NOTIFY paletteChanged)
    Q_PROPERTY(QColor buttonTextColor READ buttonTextColor NOTIFY paletteChanged)
    Q_PROPERTY(QColor highlightColor READ highlightColor NOTIFY paletteChanged)
    Q_PROPERTY(QColor highlightedTextColor READ highlightedTextColor NOTIFY paletteChanged)
    Q_PROPERTY(QColor tooltipBaseColor READ tooltipBaseColor NOTIFY paletteChanged)
    Q_PROPERTY(QColor tooltipTextColor READ tooltipTextColor NOTIFY paletteChanged)
    Q_PROPERTY(QColor linkColor READ linkColor NOTIFY paletteChanged)
    Q_PROPERTY(QColor midColor READ midColor NOTIFY paletteChanged)
    Q_PROPERTY(QColor darkColor READ darkColor NOTIFY paletteChanged)
    Q_PROPERTY(QColor lightColor READ lightColor NOTIFY paletteChanged)
    Q_PROPERTY(QColor shadowColor READ shadowColor NOTIFY paletteChanged)
    Q_PROPERTY(QColor placeholderTextColor READ placeholderTextColor NOTIFY paletteChanged)

    // Font properties
    Q_PROPERTY(QString fontFamily READ fontFamily WRITE setFontFamily NOTIFY fontChanged)
    Q_PROPERTY(int fontSize READ fontSize WRITE setFontSize NOTIFY fontChanged)
    Q_PROPERTY(QString fontStyle READ fontStyle WRITE setFontStyle NOTIFY fontChanged)
    Q_PROPERTY(QStringList availableFamilies READ availableFamilies CONSTANT)
    Q_PROPERTY(QStringList availableStyles READ availableStyles NOTIFY fontChanged)

    // Close-to-tray
    Q_PROPERTY(bool closeToTray READ closeToTray WRITE setCloseToTray NOTIFY closeToTrayChanged)

public:
    enum Mode {
        System,  // Follow KDE system color scheme
        Light,   // Force BreezeLight
        Dark     // Force BreezeDark
    };
    Q_ENUM(Mode)

    explicit ThemeManager(QObject *parent = nullptr);

    QString mode() const;
    void setMode(const QString &mode);
    QStringList availableSchemes() const;
    bool isDark() const;
    bool overriding() const;

    // Color accessors (from stored palette)
    QColor windowColor() const;
    QColor windowTextColor() const;
    QColor baseColor() const;
    QColor alternateBaseColor() const;
    QColor textColor() const;
    QColor buttonColor() const;
    QColor buttonTextColor() const;
    QColor highlightColor() const;
    QColor highlightedTextColor() const;
    QColor tooltipBaseColor() const;
    QColor tooltipTextColor() const;
    QColor linkColor() const;
    QColor midColor() const;
    QColor darkColor() const;
    QColor lightColor() const;
    QColor shadowColor() const;
    QColor placeholderTextColor() const;

    // Font accessors
    QString fontFamily() const;
    void setFontFamily(const QString &family);
    int fontSize() const;
    void setFontSize(int size);
    QString fontStyle() const;
    void setFontStyle(const QString &style);
    QStringList availableFamilies() const;
    QStringList availableStyles() const;

    // Close-to-tray
    bool closeToTray() const;
    void setCloseToTray(bool enabled);

    Q_INVOKABLE void resetFont();
    Q_INVOKABLE QString chooseFolder(const QString &title, const QString &startDir = QString());

    void applyPalette();
    void applyFont();

signals:
    void modeChanged();
    void paletteChanged();
    void fontChanged();
    void closeToTrayChanged();

private:
    QPalette paletteFromScheme(const QString &path) const;
    QColor parseColor(const QVariant &value) const;
    QString systemSchemePath() const;
    QString schemePath(const QString &name) const;
    QStringList schemeDirs() const;
    void loadSettings();
    void saveSettings();

    QString m_mode; // "system", "light", "dark"
    QPalette m_palette;
    QString m_fontFamily;
    int m_fontSize;
    QString m_fontStyle;
    bool m_closeToTray;
    QFileSystemWatcher *m_watcher;
    KConfigWatcher::Ptr m_configWatcher;
    static constexpr const char *SCHEMES_DIR = "/usr/share/color-schemes";
};

#endif // OLLIE_THEME_MANAGER_H