#include "const.h"
#include "utils.h"
#include "director.h"
#include <iostream>
#include <string>

// Constructor
Director::Director(std::string path)
{
	// Inicializa la ruta
	setExecutablePath(path);

	// Crea el objeto que controla los ficheros de recursos
	mAsset = new Asset(mExecutablePath);

	// Establece la lista de ficheros
	setFileList();

	// Si falta algún fichero no inicia el programa
	Uint8 section = SECTION_PROG_GAME;
	if (!mAsset->check())
		section = SECTION_PROG_QUIT;

	// Inicializa el objeto de idioma
	mLang = new Lang(mAsset);

	// Crea el puntero a la estructura y carga el fichero de configuración
	mOptions = new options_t;
	if (!loadConfigFile())
	{
		mOptions->fullScreenMode = 0;
		mOptions->windowSize = 3;
		mOptions->language = en_UK;
		mOptions->difficulty = DIFFICULTY_NORMAL;
		mOptions->input[0].deviceType = INPUT_USE_KEYBOARD;
		mOptions->input[1].deviceType = INPUT_USE_GAMECONTROLLER;
		mOptions->filter = FILTER_NEAREST;
		mOptions->vSync = true;
	}

	// Crea los objetos
	mInput = new Input(mAsset->get("gamecontrollerdb.txt"));

	// Inicializa SDL
	initSDL();

	// Inicializa JailAudio
	initJailAudio();

	// Aplica las opciones
	SDL_SetWindowFullscreen(mWindow, mOptions->fullScreenMode);
	SDL_SetWindowSize(mWindow, SCREEN_WIDTH * mOptions->windowSize, SCREEN_HEIGHT * mOptions->windowSize);
	mLang->setLang(mOptions->language);

	// Inicializa el resto de variables
	init(section);
}

Director::~Director()
{
	saveConfigFile();

	delete mInput;
	mInput = nullptr;

	delete mLang;
	mLang = nullptr;

	delete mOptions;
	mOptions = nullptr;

	delete mAsset;
	mAsset = nullptr;

	SDL_DestroyRenderer(mRenderer);
	SDL_DestroyWindow(mWindow);
	mRenderer = nullptr;
	mWindow = nullptr;

	SDL_Quit();
}

// Inicia las variables necesarias para arrancar el programa
void Director::init(Uint8 name)
{
	// Sección
	mSection.name = name;
	mSection.subsection = 0;

	// Textos
	mLang->setLang(mOptions->language);

	// Controles
	mInput->bindKey(INPUT_UP, SDL_SCANCODE_UP);
	mInput->bindKey(INPUT_DOWN, SDL_SCANCODE_DOWN);
	mInput->bindKey(INPUT_LEFT, SDL_SCANCODE_LEFT);
	mInput->bindKey(INPUT_RIGHT, SDL_SCANCODE_RIGHT);
	mInput->bindKey(INPUT_ACCEPT, SDL_SCANCODE_RETURN);
	mInput->bindKey(INPUT_CANCEL, SDL_SCANCODE_ESCAPE);
	mInput->bindKey(INPUT_BUTTON_1, SDL_SCANCODE_Z);
	mInput->bindKey(INPUT_BUTTON_2, SDL_SCANCODE_X);
	mInput->bindKey(INPUT_BUTTON_3, SDL_SCANCODE_C);
	mInput->bindKey(INPUT_BUTTON_PAUSE, SDL_SCANCODE_ESCAPE);
	mInput->bindKey(INPUT_BUTTON_ESCAPE, SDL_SCANCODE_ESCAPE);

	mInput->bindGameControllerButton(INPUT_UP, SDL_CONTROLLER_BUTTON_DPAD_UP);
	mInput->bindGameControllerButton(INPUT_DOWN, SDL_CONTROLLER_BUTTON_DPAD_DOWN);
	mInput->bindGameControllerButton(INPUT_LEFT, SDL_CONTROLLER_BUTTON_DPAD_LEFT);
	mInput->bindGameControllerButton(INPUT_RIGHT, SDL_CONTROLLER_BUTTON_DPAD_RIGHT);
	mInput->bindGameControllerButton(INPUT_ACCEPT, SDL_CONTROLLER_BUTTON_B);
	mInput->bindGameControllerButton(INPUT_CANCEL, SDL_CONTROLLER_BUTTON_A);
	mInput->bindGameControllerButton(INPUT_BUTTON_1, SDL_CONTROLLER_BUTTON_X);
	mInput->bindGameControllerButton(INPUT_BUTTON_2, SDL_CONTROLLER_BUTTON_Y);
	mInput->bindGameControllerButton(INPUT_BUTTON_3, SDL_CONTROLLER_BUTTON_B);
	mInput->bindGameControllerButton(INPUT_BUTTON_PAUSE, SDL_CONTROLLER_BUTTON_GUIDE);
	mInput->bindGameControllerButton(INPUT_BUTTON_ESCAPE, SDL_CONTROLLER_BUTTON_GUIDE);
}

// Inicializa JailAudio
void Director::initJailAudio()
{
	JA_Init(48000, AUDIO_S16, 2);
}

// Arranca SDL y crea la ventana
bool Director::initSDL()
{
	// Indicador de éxito
	bool success = true;

	// Inicializa SDL
	if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_GAMECONTROLLER | SDL_INIT_AUDIO) < 0)
	//if (SDL_Init(SDL_INIT_EVERYTHING) < 0)
	{
		printf("SDL could not initialize!\nSDL Error: %s\n", SDL_GetError());
		success = false;
	}
	else
	{
		// Inicia el generador de numeros aleatorios
		std::srand(static_cast<unsigned int>(SDL_GetTicks()));

		// Establece el filtro de la textura a nearest
		if (!SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, std::to_string(mOptions->filter).c_str()))
		{
			printf("Warning: Nearest texture filtering not enabled!\n");
		}

		// Crea la ventana
		mWindow = SDL_CreateWindow(WINDOW_CAPTION, SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, VIEW_WIDTH, VIEW_HEIGHT, SDL_WINDOW_SHOWN | SDL_WINDOW_ALLOW_HIGHDPI);
		if (mWindow == NULL)
		{
			printf("Window could not be created!\nSDL Error: %s\n", SDL_GetError());
			success = false;
		}
		else
		{
			// Crea un renderizador para la ventana. El vsync se activa en funcion de las opciones
			if (mOptions->vSync)
				mRenderer = SDL_CreateRenderer(mWindow, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC);
			else
				mRenderer = SDL_CreateRenderer(mWindow, -1, SDL_RENDERER_ACCELERATED);

			if (mRenderer == NULL)
			{
				printf("Renderer could not be created!\nSDL Error: %s\n", SDL_GetError());
				success = false;
			}
			else
			{
				// Inicializa el color de renderizado
				SDL_SetRenderDrawColor(mRenderer, 0x00, 0x00, 0x00, 0xFF);

				// Establece el tamaño del buffer de renderizado
				SDL_RenderSetLogicalSize(mRenderer, SCREEN_WIDTH, SCREEN_HEIGHT);

				// Establece el modo de mezcla
				SDL_SetRenderDrawBlendMode(mRenderer, SDL_BLENDMODE_BLEND);
			}
		}
	}

	printf("\n");
	return success;
}

// Crea el indice de ficheros
void Director::setFileList()
{
	mAsset->add("/media/font/8bithud.png", font);
	mAsset->add("/media/font/8bithud.txt", font);
	mAsset->add("/media/font/nokia.png", font);
	mAsset->add("/media/font/nokia.txt", font);
	mAsset->add("/media/font/nokia2.png", font);
	mAsset->add("/media/font/nokia2.txt", font);
	mAsset->add("/media/font/smb2.png", font);
	mAsset->add("/media/font/smb2.txt", font);
	mAsset->add("/media/lang/es_ES.txt", lang);
	mAsset->add("/media/lang/en_UK.txt", lang);
	mAsset->add("/media/lang/ba_BA.txt", lang);
	mAsset->add("/data/gamecontrollerdb.txt", data);
	mAsset->add("/data/config.bin", data, false);
}

// Carga el fichero de configuración
bool Director::loadConfigFile()
{
	// Pone unos valores por defecto
	mOptions->fullScreenMode = 0;
	mOptions->windowSize = 3;
	mOptions->language = en_UK;
	mOptions->difficulty = DIFFICULTY_NORMAL;
	mOptions->input[0].deviceType = INPUT_USE_KEYBOARD;
	mOptions->input[1].deviceType = INPUT_USE_GAMECONTROLLER;
	mOptions->filter = FILTER_NEAREST;
	mOptions->vSync = true;

	// Indicador de éxito en la carga
	bool success = true;

	const std::string p = mAsset->get("config.bin");
	std::string filename = p.substr(p.find_last_of("\\/") + 1);
	SDL_RWops *file = SDL_RWFromFile(p.c_str(), "r+b");

	// El fichero no existe
	if (file == NULL)
	{
		printf("Warning: Unable to open %s file\n", filename.c_str());

		// Crea el fichero para escritura
		file = SDL_RWFromFile(p.c_str(), "w+b");
		if (file != NULL)
		{
			printf("New file (%s) created!\n", filename.c_str());

			// Escribe los datos
			SDL_RWwrite(file, &mOptions->fullScreenMode, sizeof(mOptions->fullScreenMode), 1);
			SDL_RWwrite(file, &mOptions->windowSize, sizeof(mOptions->windowSize), 1);
			SDL_RWwrite(file, &mOptions->language, sizeof(mOptions->language), 1);
			SDL_RWwrite(file, &mOptions->difficulty, sizeof(mOptions->difficulty), 1);
			SDL_RWwrite(file, &mOptions->input[0].deviceType, sizeof(mOptions->input[0].deviceType), 1);
			SDL_RWwrite(file, &mOptions->input[1].deviceType, sizeof(mOptions->input[1].deviceType), 1);
			SDL_RWwrite(file, &mOptions->filter, sizeof(mOptions->filter), 1);
			SDL_RWwrite(file, &mOptions->vSync, sizeof(mOptions->vSync), 1);

			// Cierra el fichero
			SDL_RWclose(file);
		}
		else
		{
			printf("Error: Unable to create file %s\n", filename.c_str());
			success = false;
		}
	}
	// El fichero existe
	else
	{
		// Carga los datos
		printf("Reading file %s\n", filename.c_str());
		SDL_RWread(file, &mOptions->fullScreenMode, sizeof(mOptions->fullScreenMode), 1);
		SDL_RWread(file, &mOptions->windowSize, sizeof(mOptions->windowSize), 1);
		SDL_RWread(file, &mOptions->language, sizeof(mOptions->language), 1);
		SDL_RWread(file, &mOptions->difficulty, sizeof(mOptions->difficulty), 1);
		SDL_RWread(file, &mOptions->input[0].deviceType, sizeof(mOptions->input[0].deviceType), 1);
		SDL_RWread(file, &mOptions->input[1].deviceType, sizeof(mOptions->input[1].deviceType), 1);
		SDL_RWread(file, &mOptions->filter, sizeof(mOptions->filter), 1);
		SDL_RWread(file, &mOptions->vSync, sizeof(mOptions->vSync), 1);

		// Normaliza los valores
		if (!((mOptions->fullScreenMode == 0) ||
			  (mOptions->fullScreenMode == SDL_WINDOW_FULLSCREEN) ||
			  (mOptions->fullScreenMode == SDL_WINDOW_FULLSCREEN_DESKTOP)))
			mOptions->fullScreenMode = 0;
		if ((mOptions->windowSize < 1) || (mOptions->windowSize > 4))
			mOptions->windowSize = 3;
		if ((mOptions->language < 0) || (mOptions->language > MAX_LANGUAGES))
			mOptions->language = en_UK;

		// Cierra el fichero
		SDL_RWclose(file);
	}

	return success;
}

// Guarda el fichero de configuración
bool Director::saveConfigFile()
{
	bool success = true;
	const std::string p = mAsset->get("config.bin");
	std::string filename = p.substr(p.find_last_of("\\/") + 1);
	SDL_RWops *file = SDL_RWFromFile(p.c_str(), "w+b");
	if (file != NULL)
	{
		// Guarda los datos
		SDL_RWwrite(file, &mOptions->fullScreenMode, sizeof(mOptions->fullScreenMode), 1);
		SDL_RWwrite(file, &mOptions->windowSize, sizeof(mOptions->windowSize), 1);
		SDL_RWwrite(file, &mOptions->language, sizeof(mOptions->language), 1);
		SDL_RWwrite(file, &mOptions->difficulty, sizeof(mOptions->difficulty), 1);
		SDL_RWwrite(file, &mOptions->input[0].deviceType, sizeof(mOptions->input[0].deviceType), 1);
		SDL_RWwrite(file, &mOptions->input[1].deviceType, sizeof(mOptions->input[1].deviceType), 1);
		SDL_RWwrite(file, &mOptions->filter, sizeof(mOptions->filter), 1);
		SDL_RWwrite(file, &mOptions->vSync, sizeof(mOptions->vSync), 1);

		printf("Writing file %s\n", filename.c_str());

		// Cierra el fichero
		SDL_RWclose(file);
	}
	else
	{
		printf("Error: Unable to save %s file! %s\n", filename.c_str(), SDL_GetError());
	}
	return success;
}

// Establece el valor de la variable
void Director::setExecutablePath(std::string path)
{
	mExecutablePath = path.substr(0, path.find_last_of("\\/"));
}

// Obtiene el valor de la variable
Uint8 Director::getSubsection()
{
	return mSection.subsection;
}

// Obtiene el valor de la variable
Uint8 Director::getSection()
{
	return mSection.name;
}

// Establece el valor de la variable
void Director::setSection(section_t section)
{
	mSection = section;
}

void Director::runLogo()
{
}

void Director::runIntro()
{
}

void Director::runTitle()
{
}

void Director::runGame()
{
	mGame = new Game(mWindow, mRenderer, mAsset, mLang, mInput);
	setSection(mGame->run());
	delete mGame;
}

void Director::run()
{
	// Bucle principal
	while (!(getSection() == SECTION_PROG_QUIT))
	{
		switch (getSection())
		{
		case SECTION_PROG_LOGO:
			runLogo();
			break;
		case SECTION_PROG_INTRO:
			runIntro();
			break;
		case SECTION_PROG_TITLE:
			runTitle();
			break;
		case SECTION_PROG_GAME:
			runGame();
			break;
		}
	}
}