package com.linkwechat.service.impl;

import cn.hutool.core.bean.BeanUtil;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.linkwechat.common.exception.wecom.WeComException;
import com.linkwechat.domain.*;
import com.linkwechat.domain.activity.query.WeActivityAddQuery;
import com.linkwechat.domain.activity.query.WeActivityEditQuery;
import com.linkwechat.domain.activity.query.WeActivityListQuery;
import com.linkwechat.domain.activity.vo.FormRecordVo;
import com.linkwechat.domain.activity.vo.WeActivityListVo;
import com.linkwechat.domain.activity.vo.WeActivityVo;
import com.linkwechat.domain.activity.vo.WinRecordVo;
import com.linkwechat.domain.prize.query.WePrizeAddQuery;
import com.linkwechat.mapper.WeActivityMapper;
import com.linkwechat.mapper.WeApplicationFormRecordMapper;
import com.linkwechat.service.*;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import javax.annotation.Resource;
import java.math.BigDecimal;
import java.util.List;
import java.util.Objects;

/**
 * @author quchen
 * @date 2025/8/27 15:36
 */
@Service
public class WeActivityServiceImpl extends ServiceImpl<WeActivityMapper, WeActivity> implements IWeActivityService {

    @Resource
    private IWePrizeService wePrizeService;

    @Resource
    private IWeActivityFieldService weActivityFieldService;

    @Resource
    private WeApplicationFormRecordMapper weApplicationFormRecordMapper;


    @Override
    @Transactional
    public WeActivity addActivity(WeActivityAddQuery query) {
        WeActivity weActivity = new WeActivity();
        BeanUtil.copyProperties(query, weActivity);
        weActivity.setActStatus(2);
        this.save(weActivity);
        // 生成活动链接
        weActivity.setActUrl("http://192.168.0.106:6180/open/activity/getActivity?actId=" + weActivity.getActId());
        // 更新活动链接
        this.updateById(weActivity);
        // 获取活动类型
        String actType = query.getActType();
        if (query.getActType().equals("4")) {
            for (WePrizeAddQuery prize : query.getActPrizeList()) {
                WeActivityField weActivityField = new WeActivityField();
                weActivityField.setActId(weActivity.getActId());
                weActivityField.setFieldName(prize.getPrizeName());
                weActivityField.setFieldValue(prize.getPrizeContent());
                weActivityFieldService.save(weActivityField);
            }
        } else {
            boolean needVerifyProbability = (actType.equals("1") || actType.equals("2"));
            int totalPercent = 0;
            for (WePrizeAddQuery prize : query.getActPrizeList()) {
                if (needVerifyProbability) {
                    Integer winPercent = prize.getWinPercent();
                    if (winPercent == null || winPercent < 0 || winPercent > 100) {
                        throw new WeComException("中奖概率必须是0-100之间的整数");
                    }
                    totalPercent += winPercent;
                }
                WePrize wePrize = new WePrize();
                wePrize.setPrizeName(prize.getPrizeName());
                wePrize.setPrizeType(prize.getPrizeType() != null ? Integer.parseInt(prize.getPrizeType()) : 0);
                wePrize.setActId(weActivity.getActId());
                wePrize.setPrizeNum(prize.getPrizeNum());
                setPrizeSpecificFields(wePrize, prize);
                if (needVerifyProbability) {
                    wePrize.setWinPercent(prize.getWinPercent());
                }
                wePrizeService.save(wePrize);
            }
            // 只有抽奖和转盘类型需要验证概率总和
            if (needVerifyProbability && totalPercent != 100) {
                throw new WeComException("抽奖类活动奖品中奖概率总和必须为100");
            }
        }
        return weActivity;
    }

    private void setPrizeSpecificFields(WePrize wePrize, WePrizeAddQuery prizeQuery) {
        String prizeType = prizeQuery.getPrizeType();

        if (prizeQuery.getPrizeContent() != null && !prizeQuery.getPrizeContent().equals("") ) {
            String prizeContent = prizeQuery.getPrizeContent();
            switch (prizeType) {
                case "1": // 优惠券
                    wePrize.setEquityId(prizeContent);
                    break;
                case "2": // 积分
                    wePrize.setPointValue(Integer.valueOf(prizeContent));
                    break;
                case "5": // 谢谢参与
                    wePrize.setPrizeName("谢谢参与");
                    wePrize.setPrizeType(5);
                    break;
                default:
                    throw new WeComException("不支持的奖品类型: " + prizeType);
            }
        }
        //
        if (prizeQuery.getPrizeType().equals("3")) {
            wePrize.setVipId("1935579715119136769"); // 青铜会员 id
        }
        // 红包
        if (prizeQuery.getPrizeType().equals("4")) {
            wePrize.setPrizeName("红包");
            // 红包金额
            wePrize.setRedRacketAmount(new BigDecimal(prizeQuery.getRedRacketAmount()));
            // 裂变规则
            wePrize.setRedRacketRules(prizeQuery.getRedRacketRule());
            // 红包数量
            wePrize.setPrizeNum(prizeQuery.getPrizeNum());
            // 红包预算
            BigDecimal budget = new BigDecimal(prizeQuery.getRedRacketAmount()).multiply(new BigDecimal(prizeQuery.getPrizeNum()));
            if (budget.compareTo(new BigDecimal(prizeQuery.getRedRacketBudget())) != 0) {
                throw new WeComException("红包预算与红包金额乘积必须等于红包预算");
            }
            wePrize.setRedRacketBudget(new BigDecimal(prizeQuery.getRedRacketBudget()));
        }
    }
    @Override
    @Transactional
    public WeActivity editActivity(WeActivityEditQuery query) {
        WeActivity weActivity = getById(query.getActId());
        if (Objects.isNull(weActivity)) {
            throw new WeComException("活动不存在");
        }
        BeanUtil.copyProperties(query, weActivity);
        updateById(weActivity);
        Long actId = weActivity.getActId();
        String actType = query.getActType();
        if (query.getActType().equals("4")) {
            List<WeActivityField> existingField = weActivityFieldService.list(new LambdaQueryWrapper<WeActivityField>().eq(WeActivityField::getActId, actId));
            for (WeActivityField field : existingField) {
                // 删除奖品主表数据
                weActivityFieldService.removeById(field.getId());
            }
            for (WePrizeAddQuery prize : query.getActPrizeList()) {
                WeActivityField weActivityField = new WeActivityField();
                weActivityField.setActId(weActivity.getActId());
                weActivityField.setFieldName(prize.getPrizeName());
                weActivityField.setFieldValue(prize.getPrizeContent());
                weActivityFieldService.save(weActivityField);
            }
        } else {
            List<WePrize> existingPrizes = wePrizeService.list(new LambdaQueryWrapper<WePrize>().eq(WePrize::getActId, actId));
            for (WePrize prize : existingPrizes) {
                // 删除奖品主表数据
                wePrizeService.removeById(prize.getId());
            }
            List<WePrizeAddQuery> newPrizeList = query.getActPrizeList();
            boolean needVerifyProbability = (actType.equals("1") || actType.equals("2"));
            int totalPercent = 0;
            for (WePrizeAddQuery prize : query.getActPrizeList()) {
                if (needVerifyProbability) {
                    Integer winPercent = prize.getWinPercent();
                    if (winPercent == null || winPercent < 0 || winPercent > 100) {
                        throw new WeComException("中奖概率必须是0-100之间的整数");
                    }
                    totalPercent += winPercent;
                }
                WePrize wePrize = new WePrize();
                wePrize.setPrizeName(prize.getPrizeName());
                wePrize.setPrizeType(prize.getPrizeType() != null ? Integer.parseInt(prize.getPrizeType()) : 0);
                wePrize.setActId(weActivity.getActId());
                wePrize.setPrizeNum(prize.getPrizeNum());
                setPrizeSpecificFields(wePrize, prize);
                if (needVerifyProbability) {
                    wePrize.setWinPercent(prize.getWinPercent());
                }
                wePrizeService.save(wePrize);
            }
            // 只有抽奖和转盘类型需要验证概率总和
            if (needVerifyProbability && totalPercent != 100) {
                throw new WeComException("抽奖类活动奖品中奖概率总和必须为100");
            }
        }
        return weActivity;
    }

    @Override
    public boolean editActivityStatus(Long actId, Integer status) {
        WeActivity weActivity = getById(actId);
        if (Objects.isNull(weActivity)) {
            throw new WeComException("活动不存在");
        }
        weActivity.setActStatus(status);
        updateById(weActivity);
        return true;
    }

    @Override
    public List<WeActivityListVo> listActivity(WeActivityListQuery query) {
        List<WeActivityListVo> list = this.baseMapper.queryActivityList(query);
        list.forEach(vo -> {
            if (vo.getActType()== 4) {
                List<FormRecordVo> formRecordList = selectFormRecordByActId(vo.getActId().toString());
                vo.setListNum(formRecordList.size());
            }
            if (vo.getActType() == 1 || vo.getActType() == 2) {
                // 中奖人数
                List<WinRecordVo> winNumList = selectWinRecordByActId(vo.getActId().toString(),"中奖人数");
                vo.setWinNum(winNumList.size());
                // 参与人数
                List<WinRecordVo> partNum = selectWinRecordByActId(vo.getActId().toString(), "");
                vo.setListNum(partNum.size());
            }

        });
        return list;
    }

    public List<FormRecordVo> selectFormRecordByActId(String actId) {
        return weApplicationFormRecordMapper.selectFormRecordByActId(actId);
    }

    public List<WinRecordVo> selectWinRecordByActId(String actId , String prizeType) {
        return weApplicationFormRecordMapper.selectWinRecordByActId(actId, prizeType);
    }


    @Override
    public WeActivityVo getActivity(String actId) {
        return this.baseMapper.getActivity(actId);
    }
}