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

import cc.mrbird.febs.common.enumerates.FlowTypeEnum;
import cc.mrbird.febs.common.enumerates.ScoreFlowTypeEnum;
import cc.mrbird.febs.mall.entity.MallGoods;
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.IApiMallGoodsService;
import cc.mrbird.febs.mall.service.IApiMallMemberWalletService;
import cc.mrbird.febs.mall.service.IMallMoneyFlowService;
import cc.mrbird.febs.rabbit.producter.AgentProducer;
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 cn.hutool.core.util.ObjectUtil;
import cn.hutool.core.util.StrUtil;
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.math.RoundingMode;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

@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;
    private final AgentProducer agentProducer;
    private final IApiMallGoodsService mallGoodsService;

    @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);

        MallMember member = mallMemberMapper.selectById(memberId);
        BigDecimal multiple = BigDecimal.ONE;
        String name = "";
        if (mallVipBenefits != null) {
            multiple = mallVipBenefits.getScoreMultiple();
            name = mallVipBenefits.getName();
        }


        List<String> skuNames = mallOrderInfo.getItems().stream().map(MallOrderItem::getSkuName).collect(Collectors.toList());
        double sum = mallOrderInfo.getItems().stream().map(MallOrderItem::getAmount).mapToDouble(BigDecimal::doubleValue).sum();

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

        log.info("会员：{}，购买商品：{}，购买金额：{}，会员等级：{}，会员等级名称：{}，会员等级积分倍数：{}，会员获得积分：{}",
                member.getName(),
                skuNames,
                sum,
                member.getLevel(),
                name,
                multiple,
                score);
        mallMoneyFlowService.addMoneyFlow(memberId, new BigDecimal(score), ScoreFlowTypeEnum.BUY.getValue(), mallOrderInfo.getOrderNo(), FlowTypeEnum.PRIZE_SCORE.getValue(), CollUtil.join(skuNames, ","), 2);
        mallMemberWalletService.add(new BigDecimal(score), memberId, "prizeScore");

        List<Long> itemGoodsIds = mallOrderInfo.getItems().stream().map(MallOrderItem::getGoodsId).distinct().collect(Collectors.toList());
        List<MallGoods> goodsList = mallGoodsService.listByIds(itemGoodsIds);
        Map<Long, MallGoods> goodsMap = goodsList.stream()
                .filter(
                        goods -> ObjectUtil.isNotEmpty(goods.getStaticMulti())
                )
                .collect(Collectors.toMap(MallGoods::getId, MallGoods -> MallGoods));

        Map<Long, BigDecimal> recommendScoreMap = new HashMap<>();
        mallOrderInfo.getItems().forEach(item -> {
            if (StrUtil.isNotBlank(item.getMemberInviteId()) && !member.getInviteId().equals(item.getMemberInviteId())) {
                MallGoods mallGoods = goodsMap.get(item.getGoodsId());
                if (ObjectUtil.isEmpty(mallGoods)) {
                    return;
                }

                BigDecimal multi = mallGoods.getStaticMulti().divide(BigDecimal.valueOf(100), 2, RoundingMode.HALF_UP);
                MallMember mallMember = mallMemberMapper.selectInfoByInviteId(item.getMemberInviteId());
                if (mallMember == null) {
                    return;
                }

                BigDecimal recommendScore = recommendScoreMap.get(mallMember.getId());
                recommendScore = recommendScore == null ? BigDecimal.ZERO : recommendScore;
                recommendScore = recommendScore.add(item.getAmount().multiply(multi));

                recommendScoreMap.put(mallMember.getId(), recommendScore);
            }
        });

        recommendScoreMap.forEach((key, value) -> {
            if (value != null) {
                mallMoneyFlowService.addMoneyFlow(key, value, ScoreFlowTypeEnum.RECOMMEND.getValue(), mallOrderInfo.getOrderNo(), FlowTypeEnum.PRIZE_SCORE.getValue(), CollUtil.join(skuNames, ","), 2);
                mallMemberWalletService.add(value, key, "prizeScore");
            }
        });

        agentProducer.sendVipLevelUp(orderId);
    }

    @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);

        List<MallVipConfig> configs = mallVipConfigMapper.selectVipConfigList();

        String nextLevelCode = "";
        for (MallVipConfig nextLevel : configs) {
            if (config.getLevel() >= nextLevel.getLevel()) {
                continue;
            }

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

                if (hasMatch) {
                    nextLevelCode = nextLevel.getCode();
                    continue;
                }
            }

            // 时间区间内金额
            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)) {
                    continue;
                }

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

                if (nextLevel.getAmount().compareTo(BigDecimal.valueOf(totalAmount)) <= 0) {
                    nextLevelCode = nextLevel.getCode();
                }
            }
        }

        if (StrUtil.isNotBlank(nextLevelCode)) {
            MallMember update = new MallMember();
            update.setId(member.getId());
            update.setLevel(nextLevelCode);
            update.setVipLevelTime(new Date());
            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;
        }
    }
}