#include "define_buttons.h"

// Constructor
DefineButtons::DefineButtons(SDL_Renderer *renderer, Input *input, Text *text, param_t *param, options_t *options)
{
    // Copia punteros a los objetos
    this->renderer = renderer;
    this->input = input;
    this->text = text;
    this->param = param;
    this->options = options;

    // Inicializa variables
    enabled = false;
    x = param->gameWidth / 2;
    y = param->pressStart;
    indexController = 0;
    indexButton = 0;

    buttons.clear();
    db_button_t button;

    button.label = "DISPARO IZQUIERDA";
    button.input = input_fire_left;
    button.button = SDL_CONTROLLER_BUTTON_X;
    buttons.push_back(button);

    button.label = "DISPARO CENTRO";
    button.input = input_fire_center;
    button.button = SDL_CONTROLLER_BUTTON_Y;
    buttons.push_back(button);

    button.label = "DISPARO DERECHA";
    button.input = input_fire_right;
    button.button = SDL_CONTROLLER_BUTTON_RIGHTSHOULDER;
    buttons.push_back(button);

    button.label = "START";
    button.input = input_start;
    button.button = SDL_CONTROLLER_BUTTON_START;
    buttons.push_back(button);

    button.label = "SALIR DEL JUEGO";
    button.input = input_exit;
    button.button = SDL_CONTROLLER_BUTTON_BACK;
    buttons.push_back(button);

    for (int i = 0; i < input->getNumControllers(); ++i)
    {
        controllerNames.push_back(input->getControllerName(i));
    }
}

// Destructor
DefineButtons::~DefineButtons()
{
}

// Actualiza las variables del objeto
void DefineButtons::update()
{
    if (enabled)
    {
    }
}

// Dibuja el objeto en pantalla
void DefineButtons::render()
{
    if (enabled)
    {
        text->writeCentered(x, y - 20, "PLAYER " + std::to_string(indexController + 1));
        text->writeCentered(x, y - 10, controllerNames[indexController]);
        text->writeCentered(x, y, buttons[indexButton].label);
    }
}

void DefineButtons::doJoystickButtonDown(SDL_JoyButtonEvent *event)
{
    int i = input->getJoyIndex(event->which);

    // Solo pillamos botones del mando que toca
    if (i != indexController)
    {
        return;
    }

    buttons[indexButton].button = (SDL_GameControllerButton)event->button;
    incIndexButton();
}

// Comprueba las entradas
void DefineButtons::checkInput()
{
    if (enabled)
    {
        SDL_Event event;

        // Comprueba los eventos que hay en la cola
        while (SDL_PollEvent(&event))
        {
            if (event.type == SDL_JOYBUTTONDOWN)
                doJoystickButtonDown(&event.jbutton);
        }
    }
}

// Habilita el objeto
void DefineButtons::enable(int index)
{
    enabled = true;
    indexController = index - 1;
    indexButton = 0;
}

// Comprueba si está habilitado
bool DefineButtons::isEnabled()
{
    return enabled;
}

// Incrementa el indice de los botones
void DefineButtons::incIndexButton()
{
    indexButton++;

    if (indexButton == (int)buttons.size())
    {
        enabled = false;
    }
}