lanzu_api_2021-12-26/app/Service/v3/Implementations/ShopCartUpdateService.php

<?php

namespace App\Service\v3\Implementations;

use App\Constants\v3\ErrorCode;
use App\Exception\ErrorCodeException;
use App\Service\v3\Interfaces\ShopCartUpdateServiceInterface;

class ShopCartUpdateService implements ShopCartUpdateServiceInterface
{
    public function do($params)
    {
        switch ($params['goods_id'])
        {
            case 1000:
                throw new ErrorCodeException(ErrorCode::GOODS_INVENTORY_ERROR);
                break;
            case 2000:
                throw new ErrorCodeException(ErrorCode::PURCHASE_LIMIT_ERROR);
                break;
            case 3000:
                throw new ErrorCodeException(ErrorCode::SPERCIAL_OFFER_GOODS_ERROR);
                break;
            default:
                return true;
        }
    }

    public function check()
    {
        // TODO: Implement check() method.
    }

    public function undo($params)
    {
        return true;
    }
}