dlundgren/phagrancy

<?php

/**
 * @file
 * Contains Phagrancy\Action\Api\Scope\Box\SendFile
 */

namespace Phagrancy\Action\Api\Scope\Box;

use Phagrancy\Http\Response;
use Phagrancy\Model\Input;
use Phagrancy\Model\Repository;
use Psr\Http\Message\ServerRequestInterface;

/**
 * Action for sending a file to the requester
 *
 * @package Phagrancy\Action\Api\Scope\Box
 */
class SendFile
{
    /**
     * @var Repository\Box
     */
    private $boxes;

    /**
     * @var string
     */
    private $uploadPath;

    /**
     * @var Input\BoxUpload
     */
    private $input;

    public function __construct(Repository\Box $boxes, Input\BoxUpload $input, $uploadPath)
    {
        $this->boxes      = $boxes;
        $this->input      = $input;
        $this->uploadPath = $uploadPath;
    }

    public function __invoke(ServerRequestInterface $request)
    {
        /**
         * The route controls these params, and they are validated so safe
         *
         * @var string $name
         * @var string $scope
         * @var string $version
         * @var string $provider
         */
        $params = $this->input->validate($request->getAttribute('route')->getArguments());
        if (!$params) {
            return new Response\NotFound();
        }

        extract($params);
        $box  = $this->boxes->ofNameInScope($name, $scope);
        $file = "{$this->uploadPath}/{$box->path()}/{$version}/{$provider}.box";

        return ($box && file_exists($file))
            ? new Response\SendBoxFile($box, $version, $provider, $file)
            : new Response\NotFound();
    }
}