package cn.lili.modules.member.serviceimpl;

import cn.lili.base.Result;
import cn.lili.common.security.context.UserContext;
import cn.lili.modules.goods.entity.dos.GoodsSku;
import cn.lili.modules.goods.service.GoodsSkuService;
import cn.lili.modules.lmk.domain.query.FootPrintQuery;
import cn.lili.modules.lmk.domain.vo.SimpleVideoTagVO;
import cn.lili.modules.lmk.domain.vo.VideoFootInfoVo;
import cn.lili.modules.lmk.domain.vo.VideoFootVO;
import cn.lili.modules.lmk.domain.vo.VideoVO;
import cn.lili.modules.lmk.mapper.VideoMapper;
import cn.lili.modules.member.entity.dos.FootPrint;
import cn.lili.modules.member.entity.dto.FootPrintQueryParams;
import cn.lili.modules.member.mapper.FootprintMapper;
import cn.lili.modules.member.service.FootprintService;
import cn.lili.modules.search.entity.dos.EsGoodsIndex;
import cn.lili.mybatis.util.PageUtil;
import cn.lili.utils.COSUtil;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.math.BigDecimal;
import java.math.RoundingMode;
import java.util.*;
import java.util.stream.Collectors;
import java.util.stream.IntStream;

/**
 * 会员浏览历史业务层实现
 *
 * @author Chopper
 * @since 2020/11/18 10:46 上午
 */
@Service
public class FootprintServiceImpl extends ServiceImpl<FootprintMapper, FootPrint> implements FootprintService {


    @Autowired
    private GoodsSkuService goodsSkuService;

    @Autowired
    private VideoMapper videoMapper;

    @Autowired
    private COSUtil cOSUtil;

    @Override
    public FootPrint saveFootprint(FootPrint footPrint) {
        this.save(footPrint);
        return footPrint;
    }

    @Override
    public boolean clean() {
        LambdaQueryWrapper<FootPrint> lambdaQueryWrapper = Wrappers.lambdaQuery();
        lambdaQueryWrapper.eq(FootPrint::getMemberId, UserContext.getCurrentUser().getId());
        return this.remove(lambdaQueryWrapper);
    }

    @Override
    public boolean deleteByIds(List<String> ids, String viewType) {
        LambdaQueryWrapper<FootPrint> lambdaQueryWrapper = Wrappers.lambdaQuery();
        lambdaQueryWrapper.eq(FootPrint::getMemberId, UserContext.getCurrentUser().getId());
        lambdaQueryWrapper.eq(FootPrint::getViewType, viewType);
        lambdaQueryWrapper.in(FootPrint::getRefId, ids);
        return this.remove(lambdaQueryWrapper);
    }

    @Override
    public IPage<EsGoodsIndex> footPrintPage(FootPrintQueryParams params) {
        params.setSort("createTime");
        Page<FootPrint> footPrintPages = this.page(PageUtil.initPage(params), params.queryWrapper());
        //定义结果
        Page<EsGoodsIndex> esGoodsIndexIPage = new Page<>();
        if (footPrintPages.getRecords() != null && !footPrintPages.getRecords().isEmpty()) {
            List<String> skuIds = footPrintPages.getRecords().stream().map(FootPrint::getSkuId).collect(Collectors.toList());
            List<GoodsSku> goodsSkuByIdFromCache = goodsSkuService.getGoodsSkuByIdFromCache(skuIds);
            List<EsGoodsIndex> collect = IntStream.range(0, goodsSkuByIdFromCache.size())
                    .mapToObj(i -> {
                        if (goodsSkuByIdFromCache.get(i) == null) {
                            return null;
                        }
                        Optional<FootPrint> first =
                                footPrintPages.getRecords().stream().filter(j -> goodsSkuByIdFromCache.get(i).getId().equals(j.getSkuId())).findFirst();
                        return first.map(footPrint -> new EsGoodsIndex(goodsSkuByIdFromCache.get(i), footPrint.getCreateTime())).orElseGet(() -> new EsGoodsIndex(goodsSkuByIdFromCache.get(i)));
                    })
                    .collect(Collectors.toList());

            collect.removeIf(Objects::isNull);

            esGoodsIndexIPage.setPages(footPrintPages.getPages());
            esGoodsIndexIPage.setRecords(collect);
            esGoodsIndexIPage.setTotal(footPrintPages.getTotal());
            esGoodsIndexIPage.setSize(footPrintPages.getSize());
            esGoodsIndexIPage.setCurrent(footPrintPages.getCurrent());
            return esGoodsIndexIPage;
        }
        return esGoodsIndexIPage;
    }

    @Override
    public Result videoFootPrintPage(FootPrintQuery query) {
        IPage<VideoFootVO> page = cn.lili.utils.PageUtil.getPage(query,VideoFootVO.class);
        videoMapper.videoFootPage(page,query);

        VideoFootInfoVo videoFootInfoVo = videoMapper.getVideoFootInfo(query.getMemberId());

        for (VideoFootVO videoFootVO : page.getRecords()) {
            videoFootVO.setCoverCOSUrl(cOSUtil.getPreviewUrl(videoFootVO.getCoverUrl()));
            //计算播放进度
            if(videoFootVO.getPlayAt() == null || videoFootVO.getPlayAt().isEmpty()){
                videoFootVO.setPlayProgress(0.0);
                continue;
            }

            BigDecimal value = BigDecimal.valueOf(Double.parseDouble(videoFootVO.getPlayAt()) / videoFootVO.getVideoDuration())
                    .setScale(2, RoundingMode.HALF_UP);

            if (value.compareTo(BigDecimal.ONE) > 0) {
                // 这里可以添加处理逻辑，比如：自动修正为1.0
                value = BigDecimal.ONE;
            }

            videoFootVO.setPlayProgress(value.doubleValue());
        }

        HashMap<String,Object> map = new HashMap<>();
        map.put("data", page.getRecords());
        map.put("total", page.getTotal());
        if (videoFootInfoVo == null) {
            map.put("avgProgress",0);
            map.put("totalDuration",0);
        }else {
            map.put("avgProgress",videoFootInfoVo.getAvgCompletionRate());
            map.put("totalDuration",videoFootInfoVo.getTotalDuration());
        }
        return Result.ok().data(map);
    }

    @Override
    public Result memberActionAnalyse(String id){
        //视频分类
        List<VideoFootVO> list = videoMapper.videoFoot(id);
        Map<String, Long> tagCountMap = list.stream()
                .flatMap(video -> video.getTagList().stream()) // 展开所有 tag
                .filter(Objects::nonNull)                      // 过滤 null
                .collect(Collectors.groupingBy(
                        SimpleVideoTagVO::getTagName,          // 按 tagName 分组
                        Collectors.counting()                  // 计算每个 tagName 出现的次数
                ));

        return Result.ok().data(tagCountMap);
    }


    @Override
    public long getFootprintNum() {
        LambdaQueryWrapper<FootPrint> lambdaQueryWrapper = Wrappers.lambdaQuery();
        lambdaQueryWrapper.eq(FootPrint::getMemberId, Objects.requireNonNull(UserContext.getCurrentUser()).getId());
        lambdaQueryWrapper.eq(FootPrint::getDeleteFlag, false);
        return this.count(lambdaQueryWrapper);
    }




}