#include "Window.h"
#include "ErrorHandler.h"
#include <SDL2/SDL.h>
#include <SDL2/SDL_rect.h>
#include <SDL2/SDL_render.h>
#include <SDL2/SDL_video.h>
#include <iostream>
#include <vector>

void Window::Draw(std::function<bool(Window*)> setup, std::function<bool(Window*)> draw){
	setup(this);
	while(Running){

		SDL_SetRenderDrawColor(ren, 0x00,0x00,0x00,0xff);
		SDL_RenderClear(ren);
		Events(draw);
		draw(this);
		SDL_RenderPresent(ren);

	}
}

void Window::Events(std::function<bool(Window*)> draw){
	while(SDL_PollEvent(&e)){
		if(e.type == SDL_QUIT){
			Running = false;
		}
		if(e.type == SDL_KEYDOWN){
			switch(e.key.keysym.sym){
				case SDLK_a:
					Running = false;
					break;
				case SDLK_s:
					step = true;
					break;

			}
		}
		
	}
}

Window::Window(std::string title, int width, int height)
	: Running(true)
{

	if(SDL_Init(SDL_INIT_VIDEO) != 0){
		ErrorHandler::send(ErrorType::SDL_ERROR, "SDL_Init");
	}

	win = SDL_CreateWindow("test", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, width, height, SDL_WINDOW_SHOWN | SDL_WINDOW_FULLSCREEN_DESKTOP);
	if(win == NULL){
		ErrorHandler::send(ErrorType::SDL_ERROR, "SDL_CreateWindow");
	}

	ren = SDL_CreateRenderer(win, -1, SDL_RENDERER_SOFTWARE);
	if(ren == NULL){
		ErrorHandler::send(ErrorType::SDL_ERROR, "SDL_CreateRenderer");
	}
}

Window::~Window(){
	SDL_DestroyWindow(win);
	SDL_DestroyRenderer(ren);
	SDL_Quit();
}

SDL_Renderer* Window::GetRenderer(){
	return ren;	
}

void Window::DrawCircle(SDL_Renderer* ren, int x, int y, int r, bool filled){
	std::vector<SDL_Point> circle;
	for(int _x = x - r; _x <= x + r; _x++){
		for(int _y = y - r; _y <= y + r; _y++){
			int dx = _x - x;
			int dy = _y - y;
			if (dx*dx + dy*dy <= r*r){
				circle.push_back({_x, _y});
			}
		}
	}
	SDL_RenderDrawPoints(ren, circle.data(), circle.size());
}