#ifndef LOW_LEVEL_DISPLAY_ST7796_H
#define LOW_LEVEL_DISPLAY_ST7796_H

#include "low_level_display.h"
#include "st7796.h"

class LowLevelDisplayST7796 : public LowLevelDisplay {
private:
    const st7796_config* config;
    int width;
    int height;
    bool initialized;
    uint16_t* rgb_buffer;  // Persistent buffer for 1-bit to RGB565 conversion
    bool invert_color;     // If true, swap black/white

public:
    LowLevelDisplayST7796(const st7796_config* cfg, int w, int h, bool invert = false);
    ~LowLevelDisplayST7796() override;

    // Core display operations - converts 1-bit to RGB565 internally
    bool init() override;
    void clear(bool white = true) override;
    void draw_pixel(int x, int y, bool white) override;
    void draw_buffer(const uint8_t* bit_buffer) override;
    void refresh() override;

    // Display properties
    int get_width() const override { return width; }
    int get_height() const override { return height; }
    DisplayType get_type() const override { return DISPLAY_TYPE_ST7796; }
    bool is_color() const override { return true; }

    // Backlight control
    void set_backlight(bool on) override;
    
    // Brightness control (0-100)
    void set_brightness(uint8_t brightness) override;
    uint8_t get_brightness() const override;
    
    // Power management
    void sleep();  // Put display to sleep (low power, touch still active)
    void wake();   // Wake display from sleep

    // Orientation control
    void set_rotation(uint8_t rotation) override;

    // Color inversion control
    void set_invert_color(bool inv) { invert_color = inv; }
    bool get_invert_color() const { return invert_color; }
};

#endif // LOW_LEVEL_DISPLAY_ST7796_H