#pragma once

#ifdef _WIN32
#define _USE_MATH_DEFINES
#endif

#include <cmath>
#include <math.h>
#include "libremidi/libremidi.hpp"
#include "raylib.h"

enum Distribution {ROUNDROBIN, RANDOM};

// 2D Vectors

template<typename T>
class Vec2D{
	public:
	
		Vec2D() {};
		Vec2D(T x, T y) : x(x), y(y) {}
		T x = 0;
		T y = 0;
		T dist(Vec2D* v) { return sqrt(pow((v->x - x), 2) + pow((v->y - y), 2));};

		T length() { return (T)sqrt(pow(x, 2) + pow(y, 2));};

		T angle(Vec2D &v){
			T angle = atan2(v.y, v.x) - atan2(y,x);
			if(angle > M_PI) angle -= M_PI_2;
			if(angle < -M_PI) angle += M_PI_2;
			return angle;
			//return acos(dot(v));
		};

		T angleDeg(Vec2D &v){

			return angle(v) * 180 / M_PI;
		};

		T dot(Vec2D &v){
			return (x*v.x) + (y*v.y);
		};

		operator Vector2() const {
			return (Vector2){x,y};
		}

		Vec2D orth(Vec2D &v){
			return Vec2D(-v.y, v.x);
		};
		
		Vec2D orth(){
			return Vec2D(-y, x);
		};
		
		Vec2D norm() { return *this / length();};
		

		Vec2D& operator=(const Vec2D& vec){
			if (this == &vec){
				return *this;
			}
			x = vec.x;
			y = vec.y;
			return *this;
		};
		
		Vec2D& operator+=(const Vec2D& vec){
			this->x += vec.x;
			this->y += vec.y;
			return *this;
		};
		
		Vec2D& operator-=(const Vec2D& vec){
			this->x -= vec.x;
			this->y -= vec.y;
			return *this;
		};
		
		Vec2D& operator*=(const Vec2D& vec){
			this->x *= vec.x;
			this->y *= vec.y;
			return *this;
		};
		
		Vec2D& operator/=(const Vec2D& vec){
			this->x /= vec.x;
			this->y /= vec.y;
			return *this;
		};
		
		Vec2D& operator*=(T scalar){
			this->x *= scalar;
			this->y *= scalar;
			return *this;
		};
		
		Vec2D& operator/=(T scalar){
			this->x /= scalar;
			this->y /= scalar;
			return *this;
		};
		
};

template<typename T>
Vec2D<T> operator+(const Vec2D<T>& left, const Vec2D<T>& right){
	return Vec2D<T>(left.x + right.x, left.y + right.y);
};

template<typename T>
Vec2D<T> operator-(const Vec2D<T>& left, const Vec2D<T>& right){
	return Vec2D<T>(left.x - right.x, left.y - right.y);
};

template<typename T>
Vec2D<T> operator*(const Vec2D<T>& left, const Vec2D<T>& right){
	return Vec2D<T>(left.x * right.x, left.y * right.y);
};

template<typename T>
Vec2D<T> operator/(const Vec2D<T>& left, const Vec2D<T>& right){
	return Vec2D<T>(left.x / right.x, left.y / right.y);
};

template<typename T>
Vec2D<T> operator/(const Vec2D<T>& left, T scalar){
	return Vec2D<T>(left.x / scalar, left.y / scalar);
};

template<typename T>
Vec2D<T> operator*(const Vec2D<T>& left, T scalar){
	return Vec2D<T>(left.x * scalar, left.y * scalar);
};

// State

enum States {IDLE, CONFIG};

struct AppState{
	int width;
	int height;
	float grid;
	float bpm;
	float fps;
	float speed = 16.0f;
	int gui_selected_midi_out;
	States state;	
};

// MIDI

struct MidiOutPort{
	libremidi::output_port port;
	int number;
	bool enabled;
};

struct MidiOut{
	libremidi::midi_out out;
	int number;	
};

namespace MIDI{
	inline std::vector<std::string> Notes = {
		"C-1", "C#-1", "D-1", "D#-1", "E-1", "F-1", "F#-1", "G-1",
		"G#-1", "A-1", "A#-1", "B-1", "C0", "C#0", "D0", "D#0",
		"E0", "F0", "F#0", "G0", "G#0", "A0", "A#0", "B0",
		"C1", "C#1", "D1", "D#1", "E1", "F1", "F#1", "G1",
		"G#1", "A1", "A#1", "B1", "C2", "C#2", "D2", "D#2",
		"E2", "F2", "F#2", "G2", "G#2", "A2", "A#2", "B2",
		"C3", "C#3", "D3", "D#3", "E3", "F3", "F#3", "G3",
		"G#3", "A3", "A#3", "B3", "C4", "C#4", "D4", "D#4",
		"E4", "F4", "F#4", "G4", "G#4", "A4", "A#4", "B4",
		"C5", "C#5", "D5", "D#5", "E5", "F5", "F#5", "G5",
		"G#5", "A5", "A#5", "B5", "C6", "C#6", "D6", "D#6",
		"E6", "F6", "F#6", "G6", "G#6", "A6", "A#6", "B6",
		"C7", "C#7", "D7", "D#7", "E7", "F7", "F#7", "G7",
		"G#7", "A7", "A#7", "B7", "C8", "C#8", "D8", "D#8",
		"E8", "F8", "F#8", "G8", "G#8", "A8", "A#8", "B8",
		"C9", "C#9", "D9", "D#9", "E9", "F9", "F#9", "G9",
		"G#9", "A9", "A#9", "B9", "C10"
	};
}