package vidser

import (
	"91porn-server/app/service/vidhelpser"
	"91porn-server/common/cachev2"
	"91porn-server/common/constant/redisconst"
	"91porn-server/common/log"
	"91porn-server/models/v/discount_area_mod"
	"91porn-server/models/v/discount_area_video_mod"
	"91porn-server/models/v/vidmod"
	"fmt"
	"go.mongodb.org/mongo-driver/bson/primitive"
	"time"
)

// GetDiscountArea 获取折扣专区
func GetDiscountArea() (list []discount_area_mod.DiscountArea, err error) {
	_, err = cachev2.Classes().CacheTime(redisconst.DiscountAreaExpire).AutoListKey(redisconst.DiscountArea).ResBind(&list).Cache(discount_area_mod.GetAllDiscountArea)
	if err != nil {
		log.Error(fmt.Sprintf("cachev2 discount_area_mod.GetAllDiscountArea err:%v", err))
		return
	}
	return list, nil
}

// GetDiscountAreaVideos 获取折扣专区下的视频
func GetDiscountAreaVideos(uid uint64, req *DiscountVideoReq) (data *DiscountVideoResp, err error) {
	data = &DiscountVideoResp{
		List: []*vidmod.VideoInfo{},
	}
	var videos []*vidmod.VideoModel
	key := fmt.Sprintf("DiscountAreaVideoList:%v:%v:%v:%v", req.DiscountId, req.SortType, req.PageSize, req.PageNumber)
	_, err = cachev2.Classes().CacheTime(2*time.Minute).AutoListKey(key).ResBind(&videos).Cache(discountAreaVideos, req)
	if err != nil {
		log.Error(fmt.Sprintf("cachev2 discountAreaVideos err:%v", err))
		return
	}

	if len(videos) == 0 {
		log.Warn(fmt.Sprintf("discountAreaVideos is null, discountAreaId:%v", req.DiscountId))
		return data, nil
	}
	if len(videos) > int(req.PageSize) {
		data.HasNext = true
		videos = videos[:req.PageSize]
	}
	videoList := vidhelpser.EncodeVideoInfo(uid, videos)
	data.List = videoList
	return
}

// 获取折扣专区视频列表
func discountAreaVideos(req *DiscountVideoReq) (list []*vidmod.VideoModel, err error) {
	// 按照排序类型查询方式不同
	switch req.SortType {
	case 2:
		//按照最热查询
		list, err = vidmod.GetVideoListByCond(req.Filter(), req.Options())
	default:
		list, err = newDiscountAreaVideos(req)
		return
	}
	if err != nil {
		log.Error(fmt.Sprintf("discountAreaVideos err:%v", err))
		return
	}
	return
}

func newDiscountAreaVideos(req *DiscountVideoReq) (res []*vidmod.VideoModel, err error) {
	// 按照最新添加到折扣专区的顺序排
	discountAreaVideoList, _, err := discount_area_video_mod.GetListByCond(req.Filter(), req.Options())
	if err != nil {
		log.Error(fmt.Sprintf("discount_area_video_mod.GetListByCond err:%v", err))
		return
	}
	vids := []primitive.ObjectID{}
	for _, v := range discountAreaVideoList {
		vids = append(vids, v.VideoID)
	}
	// 获取视频
	list, err := vidmod.GetVideoListByIDsNoStatus(vids)
	if err != nil {
		log.Error(fmt.Sprintf("vidmod.GetVideoListByIDs err:%v", err))
		return
	}
	// 按照原来的顺序返回(不要使用sort包排序。按照时间排序，会出现问题)
	videoMap := make(map[primitive.ObjectID]*vidmod.VideoModel)
	for _, v := range list {
		videoMap[v.ID] = v
	}
	for _, v := range discountAreaVideoList {
		video := videoMap[v.VideoID]
		res = append(res, video)
	}
	return
}