package com.mzl.flower.service.statistics;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.mzl.flower.config.exception.ValidationException;
import com.mzl.flower.constant.Constants;
import com.mzl.flower.dto.response.statistics.SaleStatisticsDTO;
import com.mzl.flower.mapper.payment.*;
import com.mzl.flower.service.BaseService;
import com.mzl.flower.utils.UUIDGenerator;
import io.micrometer.core.instrument.util.StringUtils;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.math.BigDecimal;
import java.time.LocalDate;
import java.time.LocalDateTime;

@Slf4j
@Service
@Transactional
public class StatisticsService extends BaseService {

    @Autowired
    private OrderMapper orderMapper;

    @Autowired
    private OrderItemMapper orderItemMapper;

    public SaleStatisticsDTO getSaleStatistics(String date){
        if(StringUtils.isEmpty(date)){
            throw new ValidationException("日期不能为空");
        }
        LocalDate localDate = parseLocalDate(date);
        if(localDate == null){
            throw new ValidationException("日期无效");
        }

        LocalDateTime end = localDate.atTime(17, 0, 0);
        LocalDateTime begin = end.plusDays(-1);

        SaleStatisticsDTO dto = new SaleStatisticsDTO();
        BigDecimal a = orderMapper.getOrderSaleAmount(begin, end);
        Integer c = orderItemMapper.getFlowerSaleNum(begin, end);

        dto.setSaleAmount(a);
        dto.setSaleFlowerCount(c);

        return dto;
    }
}