src/Biz/OrderFacade/Product/ClassroomProduct.php

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<?php

namespace Biz\OrderFacade\Product;

use Biz\Accessor\AccessorInterface;
use Biz\Classroom\Service\ClassroomService;
use Biz\OrderFacade\Exception\OrderPayCheckException;
use Codeages\Biz\Order\Status\OrderStatusCallback;

class ClassroomProduct extends Product implements OrderStatusCallback
{
    const TYPE = 'classroom';

    public $targetType = self::TYPE;

    public $showTemplate = 'order/show/classroom-item.html.twig';

    public function init(array $params)
    {
        $classroom = $this->getClassroomService()->getClassroom($params['targetId']);

        $this->targetId = $params['targetId'];
        $this->backUrl = array('routing' => 'classroom_show', 'params' => array('id' => $classroom['id']));
        $this->successUrl = array('classroom_show', array('id' => $this->targetId));
        $this->title = $classroom['title'];
        $this->originPrice = $classroom['price'];
        $this->middlePicture = $classroom['middlePicture'];
        $this->maxRate = $classroom['maxRate'];
        $this->cover = array(
            'small' => $classroom['smallPicture'],
            'middle' => $classroom['middlePicture'],
            'large' => $classroom['largePicture'],
        );
    }

    public function validate()
    {
        $access = $this->getClassroomService()->canJoinClassroom($this->targetId);

        $classroom = $this->getClassroomService()->getClassroom($this->targetId);

        if (!$classroom['buyable']) {
            throw OrderPayCheckException::UNPURCHASABLE_PRODUCT();
        }

        if (AccessorInterface::SUCCESS !== $access['code']) {
            throw OrderPayCheckException::UNPURCHASABLE_PRODUCT();
        }
    }

    public function onPaid($orderItem)
    {
        $classroomSet = $this->getSettingService()->get('classroom');
        $targetName = empty($classroomSet['name']) ? '班级' : $classroomSet['name'];
        $this->smsCallback($orderItem, $targetName);

        $order = $this->getOrderService()->getOrder($orderItem['order_id']);
        $info = array(
            'orderId' => $order['id'],
            'note' => $order['created_reason'],