src/ApiBundle/Api/Resource/Course/Course.php

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<?php

namespace ApiBundle\Api\Resource\Course;

use ApiBundle\Api\Annotation\ApiConf;
use ApiBundle\Api\ApiRequest;
use ApiBundle\Api\Resource\AbstractResource;
use Biz\Classroom\Service\ClassroomService;
use Biz\Course\CourseException;
use Biz\Course\Service\CourseService;
use Biz\Course\Service\MemberService;
use AppBundle\Common\TimeMachine;

class Course extends AbstractResource
{
    /**
     * @ApiConf(isRequiredAuth=false)
     */
    public function get(ApiRequest $request, $courseId)
    {
        $course = $this->getCourseService()->getCourse($courseId);

        if (!$course) {
            throw CourseException::NOTFOUND_COURSE();
        }

        $user = $this->getCurrentUser();

        if ($user->isLogin()) {
            $member = $this->getMemberService()->getCourseMember($course['id'], $user['id']);
        }

        if ($course['parentId'] > 0) {
            $classroom = $this->getClassroomService()->getClassroomByCourseId($course['id']);
        }

        if (!empty($classroom) && empty($member)) {
            $this->joinCourseMemberByClassroomId($course['id'], $classroom['id']);
        }

        $this->getOCUtil()->single($course, array('creator', 'teacherIds'));
        $this->getOCUtil()->single($course, array('courseSetId'), 'courseSet');

        $course['access'] = $this->getCourseService()->canJoinCourse($courseId);
        $course = $this->convertFields($course);

        return $course;
    }

    protected function convertFields($course)
    {
        $enableAudioStatus = $this->getCourseService()->isSupportEnableAudio($course['enableAudio']);
        $course['isAudioOn'] = $enableAudioStatus ? '1' : '0';
        unset($course['enableAudio']);

        return $course;
    }

    protected function joinCourseMemberByClassroomId($courseId, $classroomId)
    {