#pragma once

#include <SDL_render.h>
#include <map>
#include <vector>

struct cmp_str
{
	bool operator()(char const *a, char const *b) const {
		return strcmp(a, b) < 0;
	}
};

class TextureManager
{
	public:
		static TextureManager& get()
		{
			static TextureManager instance;
			return instance;
		}
		
	private:
		TextureManager() {}
		~TextureManager() {
			for (auto& it : this->texture_cache) {
				SDL_DestroyTexture(it.second);
			}
		}

	public:
		TextureManager(TextureManager const&) = delete;
		void operator=(TextureManager const&) = delete;

		std::map<const char*, SDL_Texture*, cmp_str> texture_cache;

		SDL_Texture* loadTexture(const char* fileName);
        static std::vector<SDL_Rect> splitSpriteSheet(SDL_Texture* spriteSheet, int width, int height, int spritesOnSheet);
		static void draw(SDL_Texture* texture, SDL_Rect src, SDL_Rect dest);
};