aol/atc

<?php

namespace Aol\Atc;

use Symfony\Component\HttpFoundation\BinaryFileResponse;
use Symfony\Component\HttpFoundation\JsonResponse;
use Symfony\Component\HttpFoundation\Response;

class Presenter implements PresenterInterface
{
    /** @var string View directory. */
    private $view_dir;

    /** @var string View extension. */
    private $view_ext = '.php';

    /**
     * @param string $view_dir View directory
     */
    public function __construct($view_dir)
    {
        $this->view_dir = $view_dir;
    }

    /**
     * @inheritdoc
     */
    public function getAvailableFormats()
    {
        return ['text/html', 'application/json', 'image/png'];
    }

    /**
     * @inheritdoc
     */
    public function run($data, $format, $view = null)
    {
        switch ($format) {
            case 'application/json':
                $response = new JsonResponse($data);
                break;

            case 'image/gif':
            case 'image/jpeg':
            case 'image/png':
                $response = new BinaryFileResponse($data);
                break;

            case 'text/html':
            default:
                $file = $this->view_dir . $view . $this->view_ext;
                if (!file_exists($file)) {
                    throw new Exception('View does not exist: ' . $view);
                }

                ob_start();
                require $file;
                $response = new Response(ob_get_clean());
        }

        return $response;
    }
}