package com.gunshi.project.hsz.service;

import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.gunshi.db.dto.DateTimeRangeSo;
import com.gunshi.project.hsz.mapper.StWaterRMapper;
import com.gunshi.project.hsz.model.StWaterR;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.math.BigDecimal;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

/**
 * 描述: 供水量表
 * author: xusan
 * date: 2024-07-08 17:30:38
 */
@Service
@Slf4j
@Transactional(rollbackFor = Exception.class)
public class StWaterRService extends ServiceImpl<StWaterRMapper, StWaterR>
{

    public Map<String, BigDecimal> stat(DateTimeRangeSo dateTimeRangeSo) {
        List<StWaterR> list = baseMapper.stat(dateTimeRangeSo);
        return list.stream()
                .collect(Collectors.groupingBy(StWaterR::getStcd, Collectors.mapping(StWaterR::getV, Collectors.reducing(BigDecimal.ZERO, BigDecimal::add))));
    }
}