<?php

namespace App\Providers;

use App\Game\GameBoardState;
use App\Game\GameService;
use App\Game\GameSession;

use Illuminate\Support\Facades\Session;
use Illuminate\Support\ServiceProvider;
use Illuminate\Contracts\Support\DeferrableProvider;

class GameServiceProvider extends ServiceProvider implements DeferrableProvider
{
    /**
     * Register any application services.
     *
     * @return void
     */
    public function register()
    {
        $this->app->bind(GameBoardState::class, function ($app) {
            $width = (int) config('app.game.board.width', 4);
            $height = (int) config('app.game.board.height', 4);
            return new GameBoardState($width, $height);
        });

        $this->app->singleton(GameService::class, function ($app) {
            // Try loading from session.
            $session_key = config('app.game.session_name', 'game.service');
            $service = Session::get($session_key);

            // No service in session, create a new one and store it.
            if (!$service) {
                $game_session = $app->make(GameSession::class);
                $service = new GameService($game_session);
                Session::put($session_key, $service);
            }
            return $service;
        });

        $this->app->alias(GameService::class, 'game');
    }

    /**
     * Get the services provided by the provider.
     *
     * @return array
     */
    public function provides()
    {
        return ['game', GameService::class, GameBoardState::class];
    }
}