/*
 * ResourceManager.h
 *
 *  Created on: Nov 7, 2016
 *      Author: tibi
 */

#ifndef STORAGE_RESOURCEMANAGER_H_
#define STORAGE_RESOURCEMANAGER_H_

#include <components/basic/Sprite.h>

#include <vector>
#include <map>
#include <memory>
#include <string>

#include <SDL2/SDL.h>
#include <SDL2/SDL_image.h>
#include <SDL2/SDL_ttf.h>

namespace farmlands {

// Forward declaration
struct GameState;

namespace resources {

	struct LoadedResource
	{
		bool loaded;
		union
		{
			struct
			{
				SDL_Surface* surface;
				SDL_Texture* texture;
			} texture;
		};
	};

	typedef uint32_t ResourceId;

	class ResourceManager
	{
	public:
		static ResourceManager& instance();
		~ResourceManager();

		// Loading routines
		void initialize();
		void loadMainMenu();
		void loadGame();

		// Getters

		/**
		 * Obtains the path of the resource in native format.
		 */
		std::string getPath(ResourceId resourceId);

		/**
		 * Obtains the id of a resource based on its path.
		 * Returns: the resource id, or -1 if resource not found.
		 */
		ResourceId getId(std::string resourcePath);

		// Resource getters
		TTF_Font* font(ResourceId id, int pointSize);
		SDL_Texture* texture(ResourceId id);

	private:
		ResourceManager();

		typedef int FontId;

		// Instance
		static ResourceManager s_instance;

		// Loaded resources
		LoadedResource* m_loadedResources;
		std::map<FontId, TTF_Font*> m_fontCache;
	};

} /* namespace resources */
} /* namespace farmlands */

#endif /* STORAGE_RESOURCEMANAGER_H_ */