#pragma once

#include <tactility/hal/Device.h>

#include <lvgl.h>

namespace tt::hal::touch {
class TouchDevice;
}

namespace tt::hal::display {

class DisplayDriver;

class DisplayDevice : public Device {

public:

    Type getType() const override { return Type::Display; }

    /** Starts the internal driver */
    virtual bool start() = 0;
    virtual bool stop() = 0;

    virtual void setPowerOn(bool turnOn) {}
    virtual bool isPoweredOn() const { return true; }
    virtual bool supportsPowerControl() const { return false; }

    /** For e-paper screens */
    virtual void requestFullRefresh() {}

    /** Blocks until any frame already handed to this display has physically
     * finished drawing. Displays that draw synchronously within their flush
     * callback can rely on the default no-op; displays with an asynchronous
     * refresh pipeline (e.g. e-paper, where a full refresh can take seconds)
     * should override this so callers can safely do something irreversible
     * (like cutting power) right after a screen update. */
    virtual void waitForFlushComplete() {}

    /** Could return nullptr if not started */
    virtual std::shared_ptr<touch::TouchDevice> getTouchDevice() = 0;

    /** Set a value in the range [0, 255] */
    virtual void setBacklightDuty(uint8_t backlightDuty) { /* NO-OP */ }
    virtual bool supportsBacklightDuty() const { return false; }

    /** Set a value in the range [0, 255] */
    virtual void setGammaCurve(uint8_t index) { /* NO-OP */ }
    virtual uint8_t getGammaCurveCount() const { return 0; }

    virtual bool supportsLvgl() const = 0;
    virtual bool startLvgl() = 0;
    virtual bool stopLvgl() = 0;

    /** Could return nullptr if not started */
    virtual lv_display_t* getLvglDisplay() const = 0;

    virtual bool supportsDisplayDriver() const = 0;
    /** Could return nullptr if not supported */
    virtual std::shared_ptr<DisplayDriver> getDisplayDriver() = 0;
};

} // namespace tt::hal::display
