<?php

namespace JsonApi\Routes\Courses;

use Psr\Http\Message\ServerRequestInterface as Request;
use Psr\Http\Message\ResponseInterface as Response;
use JsonApi\Errors\AuthorizationFailedException;
use JsonApi\Errors\RecordNotFoundException;
use JsonApi\JsonApiController;

/**
 * Zeigt eine bestimmte Veranstaltung an.
 */
class CoursesShow extends JsonApiController
{
    protected $allowedIncludePaths = [
        'blubber-threads',
        'end-semester',
        'events',
        'feedback-elements',
        'file-refs',
        'folders',
        'forum-categories',
        'institute',
        'memberships',
        'news',
        'participating-institutes',
        'sem-class',
        'sem-type',
        'start-semester',
        'status-groups',
        'wiki-pages',
    ];

    /**
     * @SuppressWarnings(PHPMD.UnusedFormalParameter)
     */
    public function __invoke(Request $request, Response $response, $args)
    {
        if (!$course = \Course::find($args['id'])) {
            throw new RecordNotFoundException();
        }

        if (!Authority::canShowCourse($this->getUser($request), $course, Authority::SCOPE_BASIC)) {
            throw new AuthorizationFailedException();
        }

        return $this->getContentResponse($course);
    }
}