content: package com.sky.service.impl;
  
  import com.sky.constant.StatusConstant;
  import com.sky.entity.Orders;
  import com.sky.mapper.DishMapper;
  import com.sky.mapper.OrderMapper;
  import com.sky.mapper.SetmealMapper;
  import com.sky.mapper.UserMapper;
  import com.sky.service.WorkspaceService;
  import com.sky.vo.BusinessDataVO;
  import com.sky.vo.DishOverViewVO;
  import com.sky.vo.OrderOverViewVO;
  import com.sky.vo.SetmealOverViewVO;
  import org.springframework.beans.factory.annotation.Autowired;
  import org.springframework.stereotype.Service;
  
  import java.time.LocalDateTime;
  import java.time.LocalTime;
  import java.util.HashMap;
  import java.util.Map;
  
  @Service
  public class WorkspaceServiceImpl implements WorkspaceService {
  
      @Autowired
      private OrderMapper orderMapper;
      @Autowired
      private UserMapper userMapper;
      @Autowired
      private DishMapper dishMapper;
      @Autowired
      private SetmealMapper setmealMapper;
  
      /**
       * 根据时间段统计营业数据
       * 
       * @param begin
       * @param end
       * @return
       */
      public BusinessDataVO getBusinessData(LocalDateTime begin, LocalDateTime end) {
          /**
           * 营业额：当日已完成订单的总金额
           * 有效订单：当日已完成订单的数量
           * 订单完成率：有效订单数 / 总订单数
           * 平均客单价：营业额 / 有效订单数
           * 新增用户：当日新增用户的数量
           */
  
          Map<String, Object> map = new HashMap<>();
          map.put("begin", begin);
          map.put("end", end);
  
          // 查询总订单数
          Integer totalOrderCount = orderMapper.countByMap(map);
  
          map.put("status", Orders.COMPLETED);
          // 营业额
          Double turnover = orderMapper.sumByMap(map);
          turnover = turnover == null ? 0.0 : turnover;
  
          // 有效订单数
          Integer validOrderCount = orderMapper.countByMap(map);
  
          Double unitPrice = 0.0;
  
          Double orderCompletionRate = 0.0;
          if (totalOrderCount != 0 && validOrderCount != 0) {
              // 订单完成率
              orderCompletionRate = validOrderCount.doubleValue() / totalOrderCount;
              // 平均客单价
              unitPrice = turnover / validOrderCount;
          }
  
          // 新增用户数
          Integer newUsers = userMapper.countByMap(map);
  
          return BusinessDataVO.builder()
                  .turnover(turnover)
                  .validOrderCount(validOrderCount)
                  .orderCompletionRate(orderCompletionRate)
                  .unitPrice(unitPrice)
                  .newUsers(newUsers)
                  .build();
      }
  
      /**
       * 查询订单管理数据
       *
       * @return
       */
      public OrderOverViewVO getOrderOverView() {
          Map<String, Object> map = new HashMap<>();
          map.put("begin", LocalDateTime.now().with(LocalTime.MIN));
          map.put("status", Orders.TO_BE_CONFIRMED);
  
          // 待接单
          Integer waitingOrders = orderMapper.countByMap(map);
  
          // 待派送
          map.put("status", Orders.CONFIRMED);
          Integer deliveredOrders = orderMapper.countByMap(map);
  
          // 已完成
          map.put("status", Orders.COMPLETED);
          Integer completedOrders = orderMapper.countByMap(map);
  
          // 已取消
          map.put("status", Orders.CANCELLED);
          Integer cancelledOrders = orderMapper.countByMap(map);
  
          // 全部订单
          map.put("status", null);
          Integer allOrders = orderMapper.countByMap(map);
  
          return OrderOverViewVO.builder()
                  .waitingOrders(waitingOrders)
                  .deliveredOrders(deliveredOrders)
                  .completedOrders(completedOrders)
                  .cancelledOrders(cancelledOrders)
                  .allOrders(allOrders)
                  .build();
      }
  
      /**
       * 查询菜品总览
       *
       * @return
       */
      public DishOverViewVO getDishOverView() {
          Map<String, Integer> map = new HashMap<>();
          map.put("status", StatusConstant.ENABLE);
          Integer sold = dishMapper.countByMap(map);
  
          map.put("status", StatusConstant.DISABLE);
          Integer discontinued = dishMapper.countByMap(map);
  
          return DishOverViewVO.builder()
                  .sold(sold)
                  .discontinued(discontinued)
                  .build();
      }
  
      /**
       * 查询套餐总览
       *
       * @return
       */
      public SetmealOverViewVO getSetmealOverView() {
          Map<String, Integer> map = new HashMap<>();
          map.put("status", StatusConstant.ENABLE);
          Integer sold = setmealMapper.countByMap(map);
  
          map.put("status", StatusConstant.DISABLE);
          Integer discontinued = setmealMapper.countByMap(map);
  
          return SetmealOverViewVO.builder()
                  .sold(sold)
                  .discontinued(discontinued)
                  .build();
      }
  }
  