gold-java/src/main/java/com/example/demo/serviceImpl/RefundServiceImpl.java

package com.example.demo.serviceImpl;

import com.example.demo.domain.entity.UserGoldRecord;
import com.example.demo.domain.vo.*;
import com.example.demo.mapper.ConsumeMapper;
import com.example.demo.mapper.RefundMapper;
import com.example.demo.mapper.UserMapper;
import com.example.demo.service.AdminService;
import com.example.demo.service.GeneralService;
import com.example.demo.service.RefundService;
import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.io.Console;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Objects;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.stream.Collectors;

/**
 * @program: gold-java
 * @ClassName RefundServiceImpl
 * @description:
 * @author: Double
 * @create: 2025−06-27 11:50
 * @Version 1.0
 **/

@Service
public class RefundServiceImpl implements RefundService {

    @Autowired
    private RefundMapper refundMapper;

    @Autowired
    private ConsumeMapper consumeMapper;

    @Autowired
    private UserMapper userMapper;


    //查找全部退款
    @Override
    public PageInfo<RefundUser> selectAll(Integer pageNum, Integer pageSize, RefundUser refundUser) throws  Exception{
        PageHelper.startPage(pageNum, pageSize);
        List<RefundUser> refundUsers = refundMapper.selectAll(refundUser);
        return new PageInfo<>(refundUsers);
    }

    //统计退款金额
    @Override
    public Gold statsGold(RefundUser refundUser) {
        Gold gold = new Gold();
        List<RefundUser> refundUsers = refundMapper.selectBy(refundUser);

        // 初始化累加器
        int permanentGoldSum = 0;
        int freeGoldSum = 0;
        int taskGoldSum = 0;

        // 遍历推开记录并累加金币
        for (RefundUser user : refundUsers) {
            // 累加永久金币
            if (user.getPermanentGold() != null) {
                permanentGoldSum += user.getPermanentGold();
            }
            // 累加免费金币
            if (user.getFreeGold() != null) {
                freeGoldSum += user.getFreeGold();
            }
            // 累加任务金币
            if (user.getTaskGold() != null) {
                taskGoldSum += user.getTaskGold();
            }
        }

        // 将累加结果设置到Gold对象
        gold.setPermanentGolds(permanentGoldSum);
        gold.setFreeGolds(freeGoldSum);
        gold.setTaskGolds(taskGoldSum);

        return gold;
    }

    //查找筛选退款
    @Override
    public PageInfo<RefundUser> selectBy(Integer pageNum, Integer pageSize, RefundUser refundUser)throws  Exception {
        PageHelper.startPage(pageNum, pageSize);
        List<RefundUser> refundUsers = refundMapper.selectBy(refundUser);
        return new PageInfo<>(refundUsers);
    }

    //添加退款记录
    @Transactional
    @Override
    public Result add(RefundUser refundUser) {
        if (refundUser.getTaskGold() == null || refundUser.getFreeGold() == null || refundUser.getPermanentGold() == null) {
            return Result.error("金币不能为空");
        }
        if (refundUser.getTaskGold() < 0 || refundUser.getFreeGold() < 0 || refundUser.getPermanentGold() < 0) {
            return Result.error("金币不能为负数");
        }
        GoldUser goldUser = userMapper.selectUser(refundUser.getJwcode().toString());
        if(goldUser==null){
            return Result.error("用户不存在");
        }
        UserGoldRecord userGoldRecord = new UserGoldRecord();
        String goodsNameWithOrder = refundUser.getGoodsName();
        String orderCode = "";
        //订单号生成
        if (goodsNameWithOrder != null && goodsNameWithOrder.contains("_")) {
            String[] parts = goodsNameWithOrder.split("_", 2);
            if (parts.length >= 2) {
                // 提取订单号（保留原始前缀）
                orderCode = parts[0]; // XF202506281545524400006580

                // 提取商品名（处理可能包含下划线的情况）
                String goodsName = parts[1]; // 商品A

                // 设置属性（添加退款前缀）
                userGoldRecord.setOrderCode("TK" + orderCode); // TKXF202506281545524400006580
                userGoldRecord.setGoodsName(goodsName); // 商品A
            }
        }
        userGoldRecord.setJwcode(refundUser.getJwcode());
        userGoldRecord.setRefundType(refundUser.getRefundType());
        userGoldRecord.setRefundModel(refundUser.getRefundModel());
        userGoldRecord.setPermanentGold(refundUser.getPermanentGold());
        // 获取当前月份（1-12）
        int currentMonth = LocalDate.now().getMonthValue();
        // 根据当前月份设置对应字段
        if (currentMonth >= 1 && currentMonth <= 6) {
            // 1-6月：设置6月额度，12月保持默认值
            userGoldRecord.setFreeJune(0);
            userGoldRecord.setFreeDecember(refundUser.getFreeGold());
        } else {
            // 7-12月：设置12月额度，6月保持默认值
            userGoldRecord.setFreeJune(refundUser.getFreeGold());
            userGoldRecord.setFreeDecember(0);
        }
        //信息输入
        userGoldRecord.setTaskGold(refundUser.getTaskGold());
        userGoldRecord.setSumGold(refundUser.getSumGold());
        userGoldRecord.setPayPlatform("金币系统");
        userGoldRecord.setRemark(refundUser.getRemark());
        userGoldRecord.setAdminId(refundUser.getAdminId());
        userGoldRecord.setType((byte) 2);
        userGoldRecord.setAuditStatus(0);
        userGoldRecord.setCreateTime(new Date());
        List<ConsumeUser> list = consumeMapper.selectOrderCodeByJwcode(userGoldRecord.getJwcode().toString(), orderCode);
        //消费订单号校验
        if (list == null || list.isEmpty()) {
            return Result.error("该用户没有该订单号");
        }else if(list.size()==1){
            ConsumeUser consumeUser = list.getFirst();
            if(consumeUser.getIsRefund().equals(1))
            {
                return Result.error("该订单已被退款");
            }
        }else {
            return Result.error("消费订单重复");
        }
        refundMapper.add(userGoldRecord);
        consumeMapper.updateIsRefund(orderCode);
        return Result.success();
    }

    //获取退款类型
    @Override
    public List<String> getRefundType() {
        List<String> list = refundMapper.getRefundType();
        List<String> filteredList = list.stream()
                .filter(Objects::nonNull)  // 过滤掉 null 值
                .filter(str -> !str.trim().isEmpty())  // 过滤掉空字符串和仅包含空白字符的字符串
                .collect(Collectors.toList());
        return filteredList;
    }

    //查找退款商品
    @Override
    public List<RefundUser> selectGoods(Integer jwcode) {
        List<RefundUser> refundUsers = refundMapper.selectGoods(jwcode);
        List<RefundUser> list = new ArrayList<>();
        for (RefundUser record : refundUsers) {
            if (record == null) {
                continue;
            }

            String orderCode = record.getOrderCode() != null ? record.getOrderCode() : "无订单号";
            String goodsName = record.getGoodsName() != null ? record.getGoodsName() : "无商品名";

            // 拼接格式：订单号_商品名（例如：XF20250629_商品BC）
            String combined = orderCode + "_" + goodsName;
            RefundUser refundUser = new RefundUser();
            refundUser.setGoodsName(combined);
            refundUser.setSumGold(record.getPermanentGold() + record.getFreeGold() + record.getTaskGold());
            refundUser.setPermanentGold(record.getPermanentGold());
            refundUser.setFreeGold(record.getFreeGold());
            refundUser.setTaskGold(record.getTaskGold());
            list.add(refundUser);
        }
        return list;
    }
}