package cc.mrbird.febs.vip.service.impl;

import cc.mrbird.febs.common.enumerates.FlowTypeEnum;
import cc.mrbird.febs.common.enumerates.MoneyFlowTypeEnum;
import cc.mrbird.febs.common.enumerates.ScoreFlowTypeEnum;
import cc.mrbird.febs.mall.entity.MallMember;
import cc.mrbird.febs.mall.entity.MallOrderInfo;
import cc.mrbird.febs.mall.entity.MallOrderItem;
import cc.mrbird.febs.mall.mapper.MallMemberMapper;
import cc.mrbird.febs.mall.mapper.MallOrderInfoMapper;
import cc.mrbird.febs.mall.service.IApiMallMemberWalletService;
import cc.mrbird.febs.mall.service.IApiMallOrderInfoService;
import cc.mrbird.febs.mall.service.IMallMoneyFlowService;
import cc.mrbird.febs.vip.entity.MallVipBenefits;
import cc.mrbird.febs.vip.entity.MallVipConfig;
import cc.mrbird.febs.vip.mapper.MallVipConfigMapper;
import cc.mrbird.febs.vip.service.IMallVipConfigService;
import cc.mrbird.febs.vip.service.IVipCommonService;
import cn.hutool.core.collection.CollUtil;
import cn.hutool.core.date.DateUtil;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.math.BigDecimal;
import java.util.Date;
import java.util.List;

@Slf4j
@Service
@RequiredArgsConstructor
public class VipCommonServiceImpl implements IVipCommonService {

    private final MallOrderInfoMapper mallOrderInfoMapper;
    private final IMallVipConfigService mallVipConfigService;
    private final IMallMoneyFlowService mallMoneyFlowService;
    private final IApiMallMemberWalletService mallMemberWalletService;
    private final MallMemberMapper mallMemberMapper;
    private final MallVipConfigMapper mallVipConfigMapper;

    @Override
    @Transactional(rollbackFor = Exception.class)
    public void getScore(Long orderId) {
        MallOrderInfo mallOrderInfo = mallOrderInfoMapper.selectOrderDetailsById(orderId);
        if (mallOrderInfo == null) {
            return;
        }

        Long memberId = mallOrderInfo.getMemberId();
        MallVipBenefits mallVipBenefits = mallVipConfigService.hasVipBenefits(memberId);

        BigDecimal multiple = BigDecimal.ONE;
        String name = "";
        if (mallVipBenefits != null) {
            multiple = mallVipBenefits.getScoreMultiple();
            name = mallVipBenefits.getName();
        }

        double sum = mallOrderInfo.getItems().stream().map(MallOrderItem::getAmount).mapToDouble(BigDecimal::doubleValue).sum();

        int score = multiple.multiply(BigDecimal.valueOf(sum)).intValue();

        mallMoneyFlowService.addMoneyFlow(memberId, new BigDecimal(score), ScoreFlowTypeEnum.BUY.getValue(), mallOrderInfo.getOrderNo(), FlowTypeEnum.PRIZE_SCORE.getValue(), name, 2);
        mallMemberWalletService.add(new BigDecimal(score), memberId, "prize_score");
    }

    @Override
    public void levelUp(Long orderId) {
        MallOrderInfo mallOrderInfo = mallOrderInfoMapper.selectOrderDetailsById(orderId);
        if (mallOrderInfo == null) {
            return;
        }

        MallMember member = mallMemberMapper.selectById(mallOrderInfo.getMemberId());
        if (member == null) {
            log.info("会员不存在");
            return;
        }

        MallVipConfig config = mallVipConfigMapper.selectVipConfigByCode(member.getLevel());
        if (config == null) {
            log.info("会员等级配置不存在");
            return;
        }

        LambdaQueryWrapper<MallVipConfig> configQuery = new LambdaQueryWrapper<>();
        configQuery.gt(MallVipConfig::getLevel, config.getLevel())
                .orderByAsc(MallVipConfig::getLevel)
                .last("limit 1");
        MallVipConfig nextLevel = mallVipConfigMapper.selectOne(configQuery);

        // 指定商品
        if (nextLevel.getType() == 1) {
            boolean hasMatch = mallOrderInfo.getItems().stream().anyMatch(item -> {
                return item.getGoodsId().equals(nextLevel.getTargetId());
            });

            if (!hasMatch) {
                log.info("未购买指定商品");
                return;
            }

            MallMember update = new MallMember();
            update.setId(member.getId());
            update.setLevel(nextLevel.getCode());
            mallMemberMapper.updateById(update);
            return;
        }

        //
        if (nextLevel.getType() == 2) {
            Date endTime = DateUtil.endOfDay(new Date());
            Date startTime = getStartTime(nextLevel.getValidType());

            LambdaQueryWrapper<MallOrderInfo> query = new LambdaQueryWrapper<>();
            query.ge(MallOrderInfo::getReceivingTime, startTime)
                   .le(MallOrderInfo::getReceivingTime, endTime)
                   .eq(MallOrderInfo::getStatus, 4)
                    .eq(MallOrderInfo::getMemberId, member.getId());
            List<MallOrderInfo> orderList = mallOrderInfoMapper.selectList(query);
            if (CollUtil.isEmpty(orderList)) {
                return;
            }

            double totalAmount = orderList.stream().mapToDouble(item -> {
                return item.getAmount().doubleValue();
            }).sum();

            if (nextLevel.getAmount().compareTo(BigDecimal.valueOf(totalAmount)) > 0) {
                log.info("未达到指定金额:{}, {}", nextLevel.getAmount(), totalAmount);
                return;
            }

            MallMember update = new MallMember();
            update.setId(member.getId());
            update.setLevel(nextLevel.getCode());
            mallMemberMapper.updateById(update);
        }
    }

    private Date getStartTime(String type) {
        Date date = new Date();
        switch (type) {
            case "day" :
                return DateUtil.beginOfDay(date);
            case "month":
                return DateUtil.beginOfMonth(date);
            case "year":
                return DateUtil.beginOfYear(date);
            default:
                return date;
        }
    }
}