#include "define_buttons.h"
#include <utility>   // for move
#include "input.h"   // for Input, InputType
#include "lang.h"    // for getText
#include "options.h" // for options
#include "param.h"   // for param
#include "section.h" // for Name, Options, name, options
#include "text.h"    // for Text
#include "utils.h"   // for OptionsController, Options, Param, ParamGame

// Constructor
DefineButtons::DefineButtons(std::unique_ptr<Text> text_)
    : text_(std::move(text_))
{
    // Copia punteros a los objetos
    input_ = Input::get();

    // Inicializa variables
    enabled_ = false;
    x_ = param.game.width / 2;
    y_ = param.title.press_start_position;
    index_controller_ = 0;
    index_button_ = 0;

    buttons_.clear();
    DefineButtonsButton button;

    button.label = lang::getText(95);
    button.input = InputType::FIRE_LEFT;
    button.button = SDL_CONTROLLER_BUTTON_X;
    buttons_.push_back(button);

    button.label = lang::getText(96);
    button.input = InputType::FIRE_CENTER;
    button.button = SDL_CONTROLLER_BUTTON_Y;
    buttons_.push_back(button);

    button.label = lang::getText(97);
    button.input = InputType::FIRE_RIGHT;
    button.button = SDL_CONTROLLER_BUTTON_RIGHTSHOULDER;
    buttons_.push_back(button);

    button.label = lang::getText(98);
    button.input = InputType::START;
    button.button = SDL_CONTROLLER_BUTTON_START;
    buttons_.push_back(button);

    button.label = lang::getText(99);
    button.input = InputType::EXIT;
    button.button = SDL_CONTROLLER_BUTTON_BACK;
    buttons_.push_back(button);

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

// Dibuja el objeto en pantalla
void DefineButtons::render()
{
    if (enabled_)
    {
        text_->writeCentered(x_, y_ - 10, lang::getText(100) + std::to_string(options.controller[index_controller_].player_id));
        text_->writeCentered(x_, y_, controller_names_[index_controller_]);
        text_->writeCentered(x_, y_ + 10, buttons_[index_button_].label);
    }
}

// Comprueba el botón que se ha pulsado
void DefineButtons::doControllerButtonDown(SDL_ControllerButtonEvent *event)
{
    int i = input_->getJoyIndex(event->which);

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

    buttons_[index_button_].button = (SDL_GameControllerButton)event->button;
    incIndexButton();
}

// Asigna los botones definidos al input_
void DefineButtons::bindButtons()
{
    for (int i = 0; i < (int)buttons_.size(); ++i)
    {
        input_->bindGameControllerButton(index_controller_, buttons_[i].input, buttons_[i].button);
    }
}

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

        // Comprueba los eventos que hay en la cola
        while (SDL_PollEvent(&event))
        {
            switch (event.type)
            {
            case SDL_QUIT:
            {
                section::name = section::Name::QUIT;
                section::options = section::Options::QUIT_WITH_KEYBOARD;
                break;
            }

            case SDL_CONTROLLERBUTTONDOWN:
            {
                doControllerButtonDown(&event.cbutton);
                break;
            }

            default:
                break;
            }
        }
    }
}

// Habilita el objeto
bool DefineButtons::enable(int index)
{
    if (index < input_->getNumControllers())
    {
        enabled_ = true;
        index_controller_ = index;
        index_button_ = 0;
        return true;
    }

    return false;
}

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

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

    // Comprueba si ha finalizado
    if (index_button_ == (int)buttons_.size())
    {
        // Asigna los botones definidos al input_
        bindButtons();

        // Guarda los cambios en las opciones
        saveBindingsToOptions();

        // input_->allActive(index_controller_);

        // Reinicia variables
        index_button_ = 0;
        index_controller_ = 0;
        enabled_ = false;
    }
}

// Guarda los cambios en las opciones
void DefineButtons::saveBindingsToOptions()
{
    // Modifica las opciones para colocar los valores asignados
    options.controller[index_controller_].name = input_->getControllerName(index_controller_);
    for (int j = 0; j < (int)options.controller[index_controller_].inputs.size(); ++j)
    {
        options.controller[index_controller_].buttons[j] = input_->getControllerBinding(index_controller_, options.controller[index_controller_].inputs[j]);
    }
}

// Intercambia los jugadores asignados a los dos primeros mandos
void DefineButtons::swapControllers()
{
    const int temp = options.controller[0].player_id;
    options.controller[0].player_id = options.controller[1].player_id;
    options.controller[1].player_id = temp;
}