content: /*
   * Copyright 2013-2023 the original author or authors.
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      https://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package com.alibaba.cloud.integration.order.service.impl;
  
  import java.sql.Timestamp;
  
  import com.alibaba.cloud.integration.common.BusinessException;
  import com.alibaba.cloud.integration.common.Result;
  import com.alibaba.cloud.integration.order.entity.Order;
  import com.alibaba.cloud.integration.order.feign.AccountServiceFeignClient;
  import com.alibaba.cloud.integration.order.feign.StorageServiceFeignClient;
  import com.alibaba.cloud.integration.order.feign.dto.AccountDTO;
  import com.alibaba.cloud.integration.order.feign.dto.StorageDTO;
  import com.alibaba.cloud.integration.order.mapper.OrderMapper;
  import com.alibaba.cloud.integration.order.service.OrderService;
  import io.seata.core.context.RootContext;
  import io.seata.spring.annotation.GlobalTransactional;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import org.springframework.beans.factory.annotation.Autowired;
  import org.springframework.stereotype.Service;
  
  import static com.alibaba.cloud.integration.common.ResultEnum.COMMON_FAILED;
  
  /**
   * @author TrevorLink
   */
  @Service
  public class OrderServiceImpl implements OrderService {
  
  	private Logger logger = LoggerFactory.getLogger(getClass());
  
  	@Autowired
  	private OrderMapper orderMapper;
  
  	@Autowired
  	private AccountServiceFeignClient accountService;
  
  	@Autowired
  	private StorageServiceFeignClient storageService;
  
  	@Override
  	@GlobalTransactional
  	public Result<?> createOrder(String userId, String commodityCode, Integer count) {
  
  		logger.info("[createOrder] current XID: {}", RootContext.getXID());
  
  		// deduct storage
  		StorageDTO storageDTO = new StorageDTO();
  		storageDTO.setCommodityCode(commodityCode);
  		storageDTO.setCount(count);
  		Integer storageCode = storageService.reduceStock(storageDTO).getCode();
  		if (storageCode.equals(COMMON_FAILED.getCode())) {
  			throw new BusinessException("stock not enough");
  		}
  
  		// deduct balance
  		int price = count * 2;
  		AccountDTO accountDTO = new AccountDTO();
  		accountDTO.setUserId(userId);
  		accountDTO.setPrice(price);
  		Integer accountCode = accountService.reduceBalance(accountDTO).getCode();
  		if (accountCode.equals(COMMON_FAILED.getCode())) {
  			throw new BusinessException("balance not enough");
  		}
  
  		// save order
  		Order order = new Order();
  		order.setUserId(userId);
  		order.setCommodityCode(commodityCode);
  		order.setCount(count);
  		order.setMoney(price);
  		order.setCreateTime(new Timestamp(System.currentTimeMillis()));
  		order.setUpdateTime(new Timestamp(System.currentTimeMillis()));
  		orderMapper.saveOrder(order);
  		logger.info("[createOrder] orderId: {}", order.getId());
  
  		return Result.success(order);
  	}
  
  }
  