#pragma once
#include <Arduino.h>
#include "constants.hpp"

/*
 * A helper class to read values from the KY-023 joystick module.
 * It provides methods to get the X and Y positions of the joystick, as well as whether the button is pressed.
 * The joystick is connected to the following pins:
 * - VRx (X-axis) connected to A0
 * - VRy (Y-axis) connected to A1
 * - SW (button) connected to D4
 *
 *  Note: The button is active LOW and requires a pull-up resistor, which can either be external (10kΩ)
 *  or the internal pull-up resistor of the microcontroller (default).
 */
enum JoystickDirection {
  CENTER,
  UP,
  DOWN,
  LEFT,
  RIGHT
};

class Joystick {
  public:
    Joystick();
    double getX() const;
    double getY() const;
    bool isPressed();

    JoystickDirection getDirection() const;
  private:
    class Switch {
      public:
        Switch(uint8_t pin);
        bool isPressed();
      private:
        uint8_t pin;
        bool lastKnownState;
        bool lastStableState;
        uint64_t lastDebounceTime;
    };

    uint8_t vrx;
    uint8_t vry;
    Switch sw;

    uint8_t xOffset;
    uint8_t yOffset;

    const uint8_t deadzone = 15; // Deadzone threshold to prevent jitter around the center position
};