#pragma once

#include <Arduino.h>

#define NUM_KEYS 12

class Gamepad{
    public:
        enum Button {
            B = 0x1,
            Y = 0x2,
            Select = 0x4,
            Start = 0x8,
            Up = 0x10,
            Down = 0x20,
            Left = 0x40,
            Right = 0x80,
            A = 0x100,
            X = 0x200,
            LeftShoulder = 0x400,
            RightShoulder = 0x800
        };

        Gamepad(uint8_t latch, uint8_t clock, uint8_t data);

        bool isPressed(Button button);
        bool isPressedLast(Button button) const;
        uint16_t getState();
        uint16_t getLastState() const { return this->lastState; }

        static bool isPressed(uint16_t input, Button button);
    
    private:
        uint16_t readCon();
        
        uint16_t lastState = 0;

        uint8_t latch;
        uint8_t clock;
        uint8_t data;
};