package srv_videoinfo

import (
	"context"
	"math/rand"
	"net/http"
	"time"
	"videoweb/pub/common/godef"
	"videoweb/pub/common/log"
	"videoweb/pub/common/playletcache"
	"videoweb/pub/common/slugx"
	"videoweb/pub/common/srvdef"
	"videoweb/pub/common/utils"
	"videoweb/pub/models/actress"
	"videoweb/pub/models/contenttagmod"
	"videoweb/pub/models/videocategorymod"
	"videoweb/pub/models/videocollectionmediamod"
	"videoweb/pub/models/videocreatermod"
	"videoweb/pub/models/videoinformationmod"
	"videoweb/pub/mongos"
	"videoweb/pub/pubdef"
	"videoweb/pub/storage"
	"videoweb/pub/storage/proxy"
	"videoweb/web/service/srv_contenttag"
	"videoweb/web/service/srv_report"
	"videoweb/web/service/srv_seopush"

	"go.mongodb.org/mongo-driver/bson/primitive"

	"go.mongodb.org/mongo-driver/bson"
	"go.mongodb.org/mongo-driver/mongo"
	"go.mongodb.org/mongo-driver/mongo/options"
)

// GetVideoInfos 按照参数搜索APP
func GetVideoInfos(ctx context.Context, param *VideoInfoReq) (*VideoInfoResp, *srvdef.SrvErr) {
	filter := bson.M{}
	if param.MediaType != nil {
		filter[videoinformationmod.FN.VideoInformation.MediaType] = *param.MediaType
	}
	if param.Id != nil && *param.Id > 0 {
		filter[videoinformationmod.FN.VideoInformation.Id] = *param.Id
	}
	if param.Title != nil && len(*param.Title) > 0 {
		filter[videoinformationmod.FN.VideoInformation.Title] = bson.M{"$regex": *param.Title}
	}
	if param.Bango != nil && *param.Bango != "" {
		filter[videoinformationmod.FN.VideoInformation.Bango] = bson.M{"$regex": *param.Bango}
	}
	if param.CreatorId != nil && *param.CreatorId > 0 {
		filter[videoinformationmod.FN.VideoInformation.CreatorId] = *param.CreatorId
	}
	if param.Status != nil {
		filter[videoinformationmod.FN.VideoInformation.Status] = *param.Status
	}
	if param.Tag != nil && *param.Tag > 0 {
		filter[videoinformationmod.FN.VideoInformation.Tags] = bson.M{"$in": []int64{*param.Tag}}
	}
	if param.IsHot != nil {
		filter[videoinformationmod.FN.VideoInformation.IsHot] = *param.IsHot
	}
	if param.IsRecommend != nil {
		filter[videoinformationmod.FN.VideoInformation.IsRecommend] = *param.IsRecommend
	}
	if param.CreatorName != nil && len(*param.CreatorName) > 0 {
		filter[videoinformationmod.FN.VideoInformation.CreatorName] = bson.M{"$regex": *param.CreatorName}
	}
	if param.Keyworld != nil && len(*param.Keyworld) > 0 {
		filter[videoinformationmod.FN.VideoInformation.Keyworld] = bson.M{"$in": []string{*param.Keyworld}}
	}
	if param.VideoTaskId != nil && len(*param.VideoTaskId) > 0 {
		filter[videoinformationmod.FN.VideoInformation.Video.TaskId] = *param.VideoTaskId
	}
	if param.VideoFileId != nil && len(*param.VideoFileId) > 0 {
		filter[videoinformationmod.FN.VideoInformation.Video.FileId] = *param.VideoFileId
	}
	if param.CategoryId != nil && *param.CategoryId > 0 {
		filter[videoinformationmod.FN.VideoInformation.CategoryId] = *param.CategoryId
	}
	if param.IsTop != nil {
		filter[videoinformationmod.FN.VideoInformation.IsTop] = *param.IsTop
	}
	if param.ActressIds != nil && len(*param.ActressIds) > 0 {
		filter[videoinformationmod.FN.VideoInformation.ActressIds] = bson.M{"$in": *param.ActressIds}
	}
	if param.StartTime != nil && param.EndTime != nil {
		start := utils.GetDayBeginByTime(*param.StartTime)
		end := utils.GetDayEndByTime(*param.EndTime)
		if end.Unix() > start.Unix() {
			filter[videoinformationmod.FN.VideoInformation.CreatedAt] = bson.M{
				"$gte": start, "$lte": end,
			}
		}
	}
	if param.OptionAccount != nil {
		filter[videoinformationmod.FN.VideoInformation.OptionAccount] = *param.OptionAccount
	}
	opt := &options.FindOptions{}
	resp := &VideoInfoResp{
		Total: 0,
		List:  make(videoinformationmod.VideoInformationList, 0),
	}

	opt.SetSort(bson.M{videoinformationmod.FN.VideoInformation.Id: -1})
	switch param.Sort {
	case 0:
		opt.SetSort(bson.M{videoinformationmod.FN.VideoInformation.CreatedAt: -1})
	case 1:
		opt.SetSort(bson.M{videoinformationmod.FN.VideoInformation.AddedTime: -1})
	case 2:
		opt.SetSort(bson.M{videoinformationmod.FN.VideoInformation.UpdatedAt: -1})
	case 3:
		opt.SetSort(bson.D{
			{videoinformationmod.FN.VideoInformation.Sort, -1},
			{videoinformationmod.FN.VideoInformation.AddedTime, -1},
		})
	case 4:
		opt.SetSort(bson.D{
			{videoinformationmod.FN.VideoInformation.Real.WatchTimes, -1},
			{videoinformationmod.FN.VideoInformation.AddedTime, -1},
		})
	}
	opt.SetSkip((param.PageNum - 1) * param.PageSize).SetLimit(param.PageSize)

	total, serr := videoinformationmod.CountVideoInformations(ctx, filter)
	if serr != nil {
		return resp, serr
	}
	resp.Total = total
	if total == 0 {
		return resp, nil
	}
	var ads videoinformationmod.VideoInformationList
	if param.Sort == 3 && param.CategoryId != nil && *param.CategoryId > 0 {
		ads, serr = videoinformationmod.FindManyVideoByCategoryRank(ctx, filter, *param.CategoryId, (param.PageNum-1)*param.PageSize, param.PageSize, nil)
	} else {
		ads, serr = videoinformationmod.FindManyVideoInformations(ctx, filter, opt)
	}
	if serr != nil {
		return resp, serr
	}
	resp.List = ads

	return resp, nil
}

// SetVideoRecommend 单/批量设置视频是否推荐
func SetVideoRecommend(ctx context.Context, req *SetRecommendReq) *srvdef.SrvErr {
	if req == nil || len(req.Ids) == 0 {
		return srvdef.New(srvdef.ErrParamError, "ids不能为空")
	}
	ids, err := normalizeFakeFlowIds(req.Ids)
	if err != nil {
		return err
	}
	err = videoinformationmod.UpdateManyVideoInformation(ctx, bson.M{
		videoinformationmod.FN.VideoInformation.Id: bson.M{"$in": ids},
	}, bson.M{
		"$set": bson.M{
			videoinformationmod.FN.VideoInformation.IsRecommend: req.IsRecommend,
			videoinformationmod.FN.VideoInformation.UpdatedAt:   time.Now(),
		},
	})
	if err != nil {
		return err
	}
	playletcache.ClearHomeCache()
	return nil
}

// SetVideoFakeLikes 单/批量随机设置视频假点赞数
func SetVideoFakeLikes(ctx context.Context, req *SetFakeLikesReq) (*SetFakeCountResp, *srvdef.SrvErr) {
	if req == nil || len(req.Ids) == 0 {
		return nil, srvdef.New(srvdef.ErrParamError, "ids不能为空")
	}
	if req.LikesMin < 0 || req.LikesMax < req.LikesMin {
		return nil, srvdef.New(srvdef.ErrParamError, "点赞数区间无效")
	}
	ids, serr := normalizeFakeFlowIds(req.Ids)
	if serr != nil {
		return nil, serr
	}
	return setVideoFakeField(ctx, ids, videoinformationmod.FN.VideoInformation.Fake.Likes, req.LikesMin, req.LikesMax)
}

// SetVideoFakeWatchTimes 单/批量随机设置视频假观看次数
func SetVideoFakeWatchTimes(ctx context.Context, req *SetFakeWatchTimesReq) (*SetFakeCountResp, *srvdef.SrvErr) {
	if req == nil || len(req.Ids) == 0 {
		return nil, srvdef.New(srvdef.ErrParamError, "ids不能为空")
	}
	if req.WatchTimesMin < 0 || req.WatchTimesMax < req.WatchTimesMin {
		return nil, srvdef.New(srvdef.ErrParamError, "观看次数区间无效")
	}
	ids, err := normalizeFakeFlowIds(req.Ids)
	if err != nil {
		return nil, err
	}
	return setVideoFakeField(ctx, ids, videoinformationmod.FN.VideoInformation.Fake.WatchTimes, req.WatchTimesMin, req.WatchTimesMax)
}

// SetVideoHeat 单/批量随机设置视频热度
func SetVideoHeat(ctx context.Context, req *SetVideoHeatReq) (*SetFakeCountResp, *srvdef.SrvErr) {
	if req == nil || len(req.Ids) == 0 {
		return nil, srvdef.New(srvdef.ErrParamError, "ids不能为空")
	}
	if req.HeatMin < 0 || req.HeatMax < req.HeatMin {
		return nil, srvdef.New(srvdef.ErrParamError, "热度区间无效")
	}
	ids, err := normalizeFakeFlowIds(req.Ids)
	if err != nil {
		return nil, err
	}
	return setVideoFakeField(ctx, ids, videoinformationmod.FN.VideoInformation.HeatValue, req.HeatMin, req.HeatMax)
}

func setVideoFakeField(ctx context.Context, ids []int64, field string, min, max int64) (*SetFakeCountResp, *srvdef.SrvErr) {
	r := rand.New(rand.NewSource(time.Now().UnixNano()))
	docs := make([]mongo.WriteModel, 0, len(ids))
	for _, id := range ids {
		docs = append(docs, mongo.NewUpdateOneModel().
			SetFilter(bson.M{videoinformationmod.FN.VideoInformation.Id: id}).
			SetUpdate(bson.M{"$set": bson.M{field: randomFakeFlowValue(r, min, max)}}))
	}
	result, err := videoinformationmod.BulkWriteVideoInformation(ctx, docs, options.BulkWrite().SetOrdered(false))
	if err != nil {
		return nil, err
	}
	if result.MatchedCount == 0 {
		return nil, srvdef.New(srvdef.ErrNoData, "", "")
	}
	playletcache.ClearHomeCache()
	return &SetFakeCountResp{MatchedCount: result.MatchedCount, ModifiedCount: result.ModifiedCount}, nil
}

func normalizeFakeFlowIds(rawIds []int64) ([]int64, *srvdef.SrvErr) {
	ids := make([]int64, 0, len(rawIds))
	seen := make(map[int64]struct{}, len(rawIds))
	for _, id := range rawIds {
		if id <= 0 {
			return nil, srvdef.New(srvdef.ErrParamError, "ids包含无效id")
		}
		if _, ok := seen[id]; ok {
			continue
		}
		seen[id] = struct{}{}
		ids = append(ids, id)
	}
	if len(ids) == 0 {
		return nil, srvdef.New(srvdef.ErrParamError, "ids不能为空")
	}
	return ids, nil
}

const (
	defaultFakeFlowMin = int64(1000)
	defaultFakeFlowMax = int64(10000)
)

func randomDefaultFakeFlowPair(r *rand.Rand) (watchTimes, likes int64) {
	if r == nil {
		r = rand.New(rand.NewSource(time.Now().UnixNano()))
	}
	likes = randomFakeFlowValue(r, defaultFakeFlowMin, defaultFakeFlowMax-1)
	watchTimes = randomFakeFlowValue(r, likes+1, defaultFakeFlowMax)
	return watchTimes, likes
}

func applyDefaultFakeFlow(fake *pubdef.FakeFlow, r *rand.Rand) {
	if fake == nil {
		return
	}
	fake.WatchTimes, fake.Likes = randomDefaultFakeFlowPair(r)
}

func defaultFakeFlowSetDoc(r *rand.Rand) bson.M {
	watchTimes, likes := randomDefaultFakeFlowPair(r)
	return bson.M{
		videoinformationmod.FN.VideoInformation.Fake.WatchTimes: watchTimes,
		videoinformationmod.FN.VideoInformation.Fake.Likes:      likes,
	}
}

const fillZeroFakeFlowBatchSize = 500

func zeroFakeFlowFilter() bson.M {
	return bson.M{
		"$or": []bson.M{
			{
				"$expr": bson.M{
					"$lt": []interface{}{
						bson.M{"$add": []interface{}{"$real.watchTimes", "$fake.watchTimes"}},
						defaultFakeFlowMin,
					},
				},
			},
			{
				"$expr": bson.M{
					"$lt": []interface{}{
						bson.M{"$add": []interface{}{"$real.likes", "$fake.likes"}},
						defaultFakeFlowMin,
					},
				},
			},
		},
	}
}

// FillZeroVideoFakeFlow 为播放量或收藏总量小于 1000 的视频随机设置 fake 播放量和收藏数（1000-10000，播放量大于收藏量）。
func FillZeroVideoFakeFlow(ctx context.Context) (*SetFakeCountResp, *srvdef.SrvErr) {
	filter := zeroFakeFlowFilter()
	opt := options.Find().
		SetProjection(bson.M{videoinformationmod.FN.VideoInformation.Id: 1}).
		SetBatchSize(fillZeroFakeFlowBatchSize).
		SetLimit(fillZeroFakeFlowBatchSize)

	r := rand.New(rand.NewSource(time.Now().UnixNano()))
	resp := &SetFakeCountResp{}
	var lastID int64

	for {
		pageFilter := filter
		if lastID > 0 {
			pageFilter = bson.M{
				"$and": []bson.M{
					filter,
					{videoinformationmod.FN.VideoInformation.Id: bson.M{"$gt": lastID}},
				},
			}
		}
		findOpt := opt.SetSort(bson.M{videoinformationmod.FN.VideoInformation.Id: 1})
		list, serr := videoinformationmod.FindManyVideoInformations(ctx, pageFilter, findOpt)
		if serr != nil {
			return nil, serr
		}
		if len(list) == 0 {
			break
		}

		docs := make([]mongo.WriteModel, 0, len(list))
		for _, item := range list {
			if item == nil || item.Id <= 0 {
				continue
			}
			lastID = item.Id
			resp.MatchedCount++
			docs = append(docs, mongo.NewUpdateOneModel().
				SetFilter(bson.M{videoinformationmod.FN.VideoInformation.Id: item.Id}).
				SetUpdate(bson.M{"$set": defaultFakeFlowSetDoc(r)}))
		}
		if len(docs) == 0 {
			break
		}
		result, err := videoinformationmod.BulkWriteVideoInformation(ctx, docs, options.BulkWrite().SetOrdered(false))
		if err != nil {
			return nil, err
		}
		resp.ModifiedCount += result.ModifiedCount
		if len(list) < fillZeroFakeFlowBatchSize {
			break
		}
	}
	if resp.ModifiedCount > 0 {
		playletcache.ClearHomeCache()
	}
	return resp, nil
}

func randomFakeFlowValue(r *rand.Rand, min, max int64) int64 {
	if min == max {
		return min
	}
	return min + r.Int63n(max-min+1)
}

// SyncVideoInfo 同步视频
func SyncVideoInfo(ctx context.Context,
	req *AddVideoReq) *srvdef.SrvErr {

	ids := make([]string, 0)
	for _, id := range req.FileIds {
		ids = append(ids, id)
	}
	if len(ids) == 0 {
		return nil
	}

	queryMediaReq := &proxy.MediaQueryesReq{
		Ids: ids,
	}
	resp, err := storage.QueryMedias(ctx, queryMediaReq, "")
	if err != nil || resp.Code != http.StatusOK {
		if resp != nil {
			log.Warn("AddVideoInfo.QueryMedias failed", log.Any("filter", req.FileIds), log.E(err), log.Any("respCode", resp.Code))
		} else {
			log.Warn("AddVideoInfo.QueryMedias failed", log.Any("filter", req.FileIds), log.E(err))
		}
		return srvdef.New(srvdef.ErrMediaNotExsit, err.Error(), err.Error())
	}
	if len(resp.Data) == 0 {
		return nil
	}
	for _, media := range resp.Data {
		se := SyncOneVideo(ctx, media)
		if se != nil {
			log.Warn("SyncVideoInfo SYncOneVideo failed", log.Any("filter", req.FileIds), log.E(se))
			continue
		}
	}
	return nil
}

func mediaFileDomain(sourceVersion string) string {
	if sourceVersion == "v1" {
		return proxy.BucketVideoAddressV1
	}
	return proxy.BucketVideoAddressV2
}

func buildMediaRespFromSyncItem(item SyncMediaFileItem) (proxy.MediaResp, error) {
	oid, err := primitive.ObjectIDFromHex(item.Id)
	if err != nil {
		return proxy.MediaResp{}, err
	}
	return proxy.MediaResp{
		Id:            oid,
		MediaSourceId: oid,
		MediaType:     2,
		Title:         item.Title,
		FieldNameFs:   item.FieldNameFs,
		FirstTag:      item.FirstTag,
		SecondTags:    item.SecondTags,
		Keyworld:      item.Keyworld,
		VideoTime:     item.VideoTime,
		CoverImg:      item.CoverImg,
		Publish:       item.Publish,
		Bango:         item.Bango,
		TaskID:        item.TaskID,
		Width:         item.Width,
		Height:        item.Height,
	}, nil
}

// SyncVideoFromMediaFile 从媒资库直同步到视频列表（不经过切片任务）。
func SyncVideoFromMediaFile(ctx context.Context, req *SyncMediaFileReq) (*SyncMediaFileResp, *srvdef.SrvErr) {
	result := &SyncMediaFileResp{}
	if req == nil {
		return result, nil
	}
	minVideoSeconds := req.MinVideoSeconds

	syncOne := func(id string, media proxy.MediaResp) {
		if media.Id.IsZero() {
			result.Failed++
			return
		}
		if minVideoSeconds > 0 && media.VideoTime > 0 && media.VideoTime <= minVideoSeconds {
			log.Info("SyncVideoFromMediaFile skip short video",
				log.Any("id", id),
				log.Any("videoTime", media.VideoTime))
			result.Failed++
			return
		}
		if len(media.FieldNameFs) == 0 {
			log.Warn("SyncVideoFromMediaFile empty fieldNameFs", log.Any("id", id))
			result.Failed++
			return
		}
		media.MediaSourceId = media.Id
		media.MediaType = 2
		if req.FirstTagMap != nil {
			if firstTag, ok := req.FirstTagMap[id]; ok && len(firstTag) > 0 {
				media.FirstTag = firstTag
			}
		}
		if se := SyncOneVideo(ctx, media); se != nil {
			log.Warn("SyncVideoFromMediaFile SyncOneVideo failed", log.Any("id", id), log.E(se))
			result.Failed++
			return
		}
		result.Synced++
	}

	if len(req.VideoList) > 0 {
		for _, item := range req.VideoList {
			media, err := buildMediaRespFromSyncItem(item)
			if err != nil {
				log.Warn("SyncVideoFromMediaFile invalid item", log.Any("id", item.Id), log.E(err))
				result.Failed++
				continue
			}
			syncOne(item.Id, media)
		}
		return result, nil
	}

	domain := mediaFileDomain(req.SourceVersion)
	for _, id := range req.FileIds {
		if len(id) == 0 {
			continue
		}
		resp, err := storage.QueryMedia(ctx, &proxy.MediaQueryeReq{Id: id}, domain)
		if err != nil || resp == nil || resp.Code != proxy.Success {
			if resp != nil {
				log.Warn("SyncVideoFromMediaFile QueryMedia failed", log.Any("id", id), log.E(err), log.Any("respCode", resp.Code))
			} else {
				log.Warn("SyncVideoFromMediaFile QueryMedia failed", log.Any("id", id), log.E(err))
			}
			result.Failed++
			continue
		}
		media := resp.Data
		if media.Id.IsZero() {
			oid, parseErr := primitive.ObjectIDFromHex(id)
			if parseErr != nil {
				log.Warn("SyncVideoFromMediaFile invalid id", log.Any("id", id), log.E(parseErr))
				result.Failed++
				continue
			}
			media.Id = oid
		}
		syncOne(id, media)
	}
	return result, nil
}

// DelVideoInfo 删除指定APP
func DelVideoInfo(ctx context.Context, id int64) *srvdef.SrvErr {
	info, err1 := videoinformationmod.FindOneVideoInformation(ctx, bson.M{
		videoinformationmod.FN.VideoInformation.Id: id,
	}, options.FindOne().SetProjection(bson.D{
		{Key: videoinformationmod.FN.VideoInformation.Id, Value: 1},
		{Key: videoinformationmod.FN.VideoInformation.Tags, Value: 1},
	}))
	if err1 != nil {
		return err1
	}
	adFilter := bson.M{videoinformationmod.FN.VideoInformation.Id: id}
	//删除
	count, serr := videoinformationmod.DelOneVideoInformation(ctx, adFilter)
	if serr != nil {
		return serr
	}
	if count == 0 {
		return srvdef.New(srvdef.ErrNoData, "", "")
	}
	playletcache.ClearHomeCache()
	// 删除后检查一下合集数据
	collectionInfos, _ := videocollectionmediamod.FindManyVideoCollectionMediaModels(ctx, bson.M{
		videocollectionmediamod.FN.VideoCollectionMediaModel.VideoId: id,
	})
	if len(collectionInfos) > 0 {
		collectionIds := make([]int64, 0)
		for _, collectionInfo := range collectionInfos {
			collectionIds = append(collectionIds, collectionInfo.CollectionID)
		}
		if len(collectionIds) > 0 {
			_ = videoinformationmod.UpdateManyVideoInformation(ctx, bson.M{
				videoinformationmod.FN.VideoInformation.Id: bson.M{"$in": collectionInfos},
			}, bson.M{"$inc": bson.M{
				videoinformationmod.FN.VideoInformation.VideoCount: -1,
			}})
		}
	}
	_, _ = videocollectionmediamod.DelManyVideoCollectionMediaModel(ctx, bson.M{
		videocollectionmediamod.FN.VideoCollectionMediaModel.VideoId: id,
	})
	if len(info.Tags) > 0 {
		oldTagIds := append([]int64{}, info.Tags...)
		godef.Go(func() {
			_ = srv_contenttag.SyncContentTagBindCount(context.Background(), oldTagIds, nil, contenttagmod.ContentTagTypeVideo)
		})
	}
	return nil
}

// UpdateVideoInfo 更新指定APP
func UpdateVideoInfo(ctx context.Context, id, userId int64, param VideoInfoUpdate) *srvdef.SrvErr {
	now := time.Now()
	info, serr := videoinformationmod.FindOneVideoInformation(ctx, bson.M{videoinformationmod.FN.VideoInformation.Id: id})
	if serr != nil {
		return serr
	}
	param.UpdatedAt = &now
	param.SecondUpdatedAt = &now
	if param.CreatorId != nil {
		name := ""
		if *param.CreatorId == 0 {
			param.CreatorName = &name
		} else {
			// 查询作者
			c, serr := videocreatermod.FindOneVideoCreaterInfo(ctx, bson.M{
				videocreatermod.FN.VideoCreaterInfo.Id: *param.CreatorId,
			})
			if serr != nil {
				return serr
			}
			name = c.Name
			param.CreatorName = &name
		}
	}
	if param.Tags != nil {
		tagIds, err1 := srv_contenttag.NormalizeContentTagIds(*param.Tags)
		if err1 != nil {
			return err1
		}
		if err1 := srv_contenttag.ValidateContentTags(ctx, tagIds, contenttagmod.ContentTagTypeVideo); err1 != nil {
			return err1
		}
		param.Tags = &tagIds
	}
	if param.CategoryRanks != nil {
		seen := make(map[int64]bool, len(*param.CategoryRanks))
		for _, rank := range *param.CategoryRanks {
			if rank.Id <= 0 || seen[rank.Id] {
				return srvdef.New(srvdef.ErrParamError, "分类ID无效或重复", "分类ID无效或重复")
			}
			seen[rank.Id] = true
			if _, err := videocategorymod.FindOneVideoCategory(ctx, bson.M{videocategorymod.FN.VideoCategory.Id: rank.Id}); err != nil {
				if err.Code == srvdef.ErrNoData {
					return srvdef.New(srvdef.ErrParamError, "视频分类不存在", "视频分类不存在")
				}
				return err
			}
		}
	}
	isChangeActress := checkActressChange(*info, param)
	isChangeTag := checkTagChange(*info, param)
	if param.ActressIds != nil && len(*param.ActressIds) > 0 {
		acts, serr := actress.FindManyActresss(ctx, bson.M{
			actress.FN.Actress.Id: bson.M{"$in": *param.ActressIds},
		})
		if serr != nil {
			log.Warn("UpdateVideoInfo FindManyActresss failed", log.Any("filter", param.ActressIds), log.E(serr))
			return serr
		}
		acIds := make([]int64, 0)
		for _, a := range acts {
			acIds = append(acIds, a.Id)
		}
		param.ActressIds = &acIds
	}

	if param.Nodes != nil && len(*param.Nodes) > 0 {
		nodes := *param.Nodes
		for i, node := range nodes {
			if len(node.NodeId) == 0 {
				node.NodeId = primitive.NewObjectID().Hex()
				nodes[i] = node
			}
		}
		param.Nodes = &nodes
	}
	if param.Cover != nil && len(*param.Cover) > 0 {
		if len(info.Video.Url) > 0 {
			info.Video.Cover = *param.Cover
			param.Video = &info.Video
		}
	}
	if param.Status != nil && *param.Status != info.Status {
		isChangeActress = true
		tempActressIds := make([]int64, 0)
		if param.ActressIds != nil {
			tempActressIds = *param.ActressIds
		}
		go updateActressWorks(info.ActressIds, tempActressIds)
	}
	title := info.Title
	if param.Title != nil {
		title = *param.Title
	}
	keyworld := info.Keyworld
	if param.Keyworld != nil {
		keyworld = *param.Keyworld
	}
	exists := func(s string) bool {
		doc, _ := videoinformationmod.FindOneVideoInformation(ctx, slugx.Filter(
			videoinformationmod.FN.VideoInformation.Slug, videoinformationmod.FN.VideoInformation.Id, s, id))
		return doc != nil
	}
	slug, changed, slugErr := slugx.PrepareOnUpdate(info.Slug, param.Slug,
		utils.SlugSourceFromKeywordsOrTitle(keyworld, title), exists)
	if slugErr != nil {
		return slugErr
	}
	if changed {
		param.Slug = &slug
	} else {
		param.Slug = nil
	}
	adFilter := bson.M{videoinformationmod.FN.VideoInformation.Id: id}
	param.IndexNow = nil
	isPublished := param.Status != nil &&
		info.Status != *param.Status &&
		*param.Status == pubdef.InformationStatusVerifyOK
	if isPublished || (param.IsReIndexNow != nil && *param.IsReIndexNow) {
		indexNow := int64(0)
		param.IndexNow = &indexNow
	}
	serr = videoinformationmod.UpdateOneVideoInformation(ctx, adFilter, bson.M{"$set": param})
	if serr != nil {
		return serr
	}
	playletcache.ClearHomeCache()
	if isChangeActress {
		tempActressIds := make([]int64, 0)
		if param.ActressIds != nil {
			tempActressIds = *param.ActressIds
		}
		go updateActressWorks(info.ActressIds, tempActressIds)
	}
	if isChangeTag {
		tempIds := make([]int64, 0)
		if param.Tags != nil {
			tempIds = *param.Tags
		}
		oldTagIds := append([]int64{}, info.Tags...)
		newTagIds := append([]int64{}, tempIds...)
		godef.Go(func() {
			_ = srv_contenttag.SyncContentTagBindCount(context.Background(), oldTagIds, newTagIds, contenttagmod.ContentTagTypeVideo)
		})
	}
	if param.Status != nil && info.Status != *param.Status {
		if flag := srv_report.VideoStatusFlag(*param.Status); flag != 0 {
			mediaCopy := *info
			mediaCopy.Status = *param.Status
			godef.Go(func() {
				srv_report.ReportVideoStatusChangeEvent(&mediaCopy, flag, userId)
			})
		}
	}
	newStatus := info.Status
	if param.Status != nil {
		newStatus = *param.Status
	}
	srv_seopush.NotifyInfoAfterWrite(ctx, srv_seopush.KindVideo, id, info.Status, newStatus)
	return nil
}

func checkActressChange(info videoinformationmod.VideoInformation, updateParam VideoInfoUpdate) bool {
	if updateParam.ActressIds != nil {
		if len(info.ActressIds) != len(*updateParam.ActressIds) {
			return true
		}
		actressIds := *updateParam.ActressIds
		for i, v := range info.ActressIds {
			if v != actressIds[i] {
				return true
			}
		}
	}
	return false
}
func checkTagChange(info videoinformationmod.VideoInformation, updateParam VideoInfoUpdate) bool {
	if updateParam.Tags != nil {
		if len(info.Tags) != len(*updateParam.Tags) {
			return true
		}
		tags := *updateParam.Tags
		for i, v := range info.Tags {
			if v != tags[i] {
				return true
			}
		}
	}
	return false
}

func updateActressWorks(oldIds []int64, newIds []int64) {
	defer func() {
		if err := recover(); err != nil {
			log.Error("updateActressWorks failed", log.Any("err", err))
		}
	}()
	mapIds := make(map[int64]struct{})
	if oldIds == nil {
		oldIds = make([]int64, 0)
	}
	if newIds == nil {
		newIds = make([]int64, 0)
	}
	for _, id := range newIds {
		mapIds[id] = struct{}{}
	}
	for _, id := range oldIds {
		mapIds[id] = struct{}{}
	}
	ids := make([]int64, 0)
	for id := range mapIds {
		ids = append(ids, id)
	}
	ctx := context.Background()
	for _, id := range ids {
		count, err := videoinformationmod.CountVideoInformations(ctx, bson.M{videoinformationmod.FN.VideoInformation.Status: pubdef.InformationStatusVerifyOK, videoinformationmod.FN.VideoInformation.ActressIds: bson.M{"$in": []int64{id}}})
		if err == nil {
			_ = actress.UpdateOneActress(ctx, bson.M{
				actress.FN.Actress.Id: id,
			}, bson.M{
				"$set": bson.M{
					actress.FN.Actress.Works: count,
				},
			})
		}
	}
}

func AddVideoCollection(ctx context.Context, param *AddVideoCollectionReq) *srvdef.SrvErr {
	tagIds, err1 := srv_contenttag.NormalizeContentTagIds(param.Tags)
	if err1 != nil {
		return err1
	}
	if err1 := srv_contenttag.ValidateContentTags(ctx, tagIds, contenttagmod.ContentTagTypeVideo); err1 != nil {
		return err1
	}
	info := videoinformationmod.VideoInformation{
		Id:         mongos.Lid.VideoInfo.Get(),
		Title:      param.Title,
		MediaType:  videoinformationmod.MediaType_Collection,
		AddedTime:  time.Now(),
		Keyworld:   param.Keyworld,
		FirstTag:   param.FirstTag,
		SecondTags: param.SecondTags,
		CoverImg:   param.CoverImg,
		Desc:       param.Desc,
		Remark:     param.Remark,
		Nodes:      make([]videoinformationmod.Node, 0),
		Status:     pubdef.InformationStatusWaiting,
		Video:      videoinformationmod.VideoInfo{},
		Tags:       tagIds,
		Real:       pubdef.Flow{},
		VideoCount: 0,
		UpdatedAt:  time.Now(),
		CreatedAt:  time.Now(),
	}
	if err1 := videoinformationmod.InsertOneVideoInformation(ctx, &info); err1 != nil {
		return err1
	}
	return srv_contenttag.SyncContentTagBindCount(ctx, nil, tagIds, contenttagmod.ContentTagTypeVideo)
}

// AddVideoTags 批量追加视频统一标签
func AddVideoTags(ctx context.Context, req *VideoAddTagsReq) *srvdef.SrvErr {
	if req == nil || len(req.VideoIds) == 0 || len(req.Tags) == 0 {
		return srvdef.New(srvdef.ErrParamError, "视频ID和标签ID不能为空", "")
	}
	videoIds, err := normalizeFakeFlowIds(req.VideoIds)
	if err != nil {
		return err
	}
	tagIds, err := srv_contenttag.NormalizeContentTagIds(req.Tags)
	if err != nil {
		return err
	}
	if len(tagIds) == 0 {
		return srvdef.New(srvdef.ErrParamError, "标签ID不能为空", "")
	}
	if err := srv_contenttag.ValidateContentTags(ctx, tagIds, contenttagmod.ContentTagTypeVideo); err != nil {
		return err
	}
	list, err := videoinformationmod.FindManyVideoInformations(ctx, bson.M{
		videoinformationmod.FN.VideoInformation.Id: bson.M{"$in": videoIds},
	}, options.Find().SetProjection(bson.D{
		{Key: videoinformationmod.FN.VideoInformation.Id, Value: 1},
		{Key: videoinformationmod.FN.VideoInformation.Tags, Value: 1},
	}))
	if err != nil {
		return err
	}
	if len(list) == 0 {
		return srvdef.New(srvdef.ErrNoData, "", "")
	}
	now := time.Now()
	docs := make([]mongo.WriteModel, 0, len(list))
	changes := make([]srv_contenttag.ContentTagBindChange, 0, len(list))
	for _, item := range list {
		if item == nil {
			continue
		}
		newTagIds, changed := appendMissingVideoTagIds(item.Tags, tagIds)
		if !changed {
			continue
		}
		docs = append(docs, mongo.NewUpdateOneModel().
			SetFilter(bson.M{videoinformationmod.FN.VideoInformation.Id: item.Id}).
			SetUpdate(bson.M{"$set": bson.M{
				videoinformationmod.FN.VideoInformation.Tags:      newTagIds,
				videoinformationmod.FN.VideoInformation.UpdatedAt: now,
			}}))
		changes = append(changes, srv_contenttag.ContentTagBindChange{
			OldTagIds: append([]int64{}, item.Tags...),
			NewTagIds: newTagIds,
		})
	}
	if len(docs) == 0 {
		return nil
	}
	if _, err := videoinformationmod.BulkWriteVideoInformation(ctx, docs, options.BulkWrite().SetOrdered(false)); err != nil {
		return err
	}
	playletcache.ClearHomeCache()
	return srv_contenttag.SyncContentTagBindCountBatch(ctx, changes, contenttagmod.ContentTagTypeVideo)
}

// SetVideoTags 单/批量覆盖设置视频统一标签，并同步新标签表视频绑定数量
func SetVideoTags(ctx context.Context, req *VideoSetTagsReq) *srvdef.SrvErr {
	if req == nil || len(req.Ids) == 0 {
		return srvdef.New(srvdef.ErrParamError, "视频ID不能为空", "")
	}
	if req.TagIds == nil {
		return srvdef.New(srvdef.ErrParamError, "标签ID不能为空", "")
	}
	videoIds, err := normalizeFakeFlowIds(req.Ids)
	if err != nil {
		return err
	}
	tagIds, err := srv_contenttag.NormalizeContentTagIds(*req.TagIds)
	if err != nil {
		return err
	}
	if err := srv_contenttag.ValidateContentTags(ctx, tagIds, contenttagmod.ContentTagTypeVideo); err != nil {
		return err
	}
	list, err := videoinformationmod.FindManyVideoInformations(ctx, bson.M{
		videoinformationmod.FN.VideoInformation.Id: bson.M{"$in": videoIds},
	}, options.Find().SetProjection(bson.D{
		{Key: videoinformationmod.FN.VideoInformation.Id, Value: 1},
		{Key: videoinformationmod.FN.VideoInformation.Tags, Value: 1},
	}))
	if err != nil {
		return err
	}
	if len(list) == 0 {
		return srvdef.New(srvdef.ErrNoData, "", "")
	}
	now := time.Now()
	docs := make([]mongo.WriteModel, 0, len(list))
	changes := make([]srv_contenttag.ContentTagBindChange, 0, len(list))
	for _, item := range list {
		if item == nil || sameVideoTagIds(item.Tags, tagIds) {
			continue
		}
		docs = append(docs, mongo.NewUpdateOneModel().
			SetFilter(bson.M{videoinformationmod.FN.VideoInformation.Id: item.Id}).
			SetUpdate(bson.M{"$set": bson.M{
				videoinformationmod.FN.VideoInformation.Tags:      tagIds,
				videoinformationmod.FN.VideoInformation.UpdatedAt: now,
			}}))
		changes = append(changes, srv_contenttag.ContentTagBindChange{
			OldTagIds: append([]int64{}, item.Tags...),
			NewTagIds: append([]int64{}, tagIds...),
		})
	}
	if len(docs) == 0 {
		return nil
	}
	if _, err := videoinformationmod.BulkWriteVideoInformation(ctx, docs, options.BulkWrite().SetOrdered(false)); err != nil {
		return err
	}
	playletcache.ClearHomeCache()
	return srv_contenttag.SyncContentTagBindCountBatch(ctx, changes, contenttagmod.ContentTagTypeVideo)
}

func sameVideoTagIds(current, target []int64) bool {
	if len(current) != len(target) {
		return false
	}
	for i := range current {
		if current[i] != target[i] {
			return false
		}
	}
	return true
}

func appendMissingVideoTagIds(current, addIds []int64) ([]int64, bool) {
	result := append([]int64{}, current...)
	tagMap := make(map[int64]struct{}, len(current)+len(addIds))
	for _, tagId := range current {
		if tagId > 0 {
			tagMap[tagId] = struct{}{}
		}
	}
	changed := false
	for _, tagId := range addIds {
		if _, ok := tagMap[tagId]; ok {
			continue
		}
		tagMap[tagId] = struct{}{}
		result = append(result, tagId)
		changed = true
	}
	return result, changed
}