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get_favourite_video.go
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/
get_favourite_video.go
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package service
import (
"github.com/benxinm/tiktok/cmd/video/dal/db"
"github.com/benxinm/tiktok/cmd/video/pack"
"github.com/benxinm/tiktok/cmd/video/rpc"
"github.com/benxinm/tiktok/kitex_gen/interaction"
"github.com/benxinm/tiktok/kitex_gen/user"
"github.com/benxinm/tiktok/kitex_gen/video"
"golang.org/x/sync/errgroup"
)
func (s *VideoService) GetFavouriteVideo(req *video.GetFavoriteVideoInfoRequest) ([]*video.Video, error) {
videoList, err := db.GetVideosByIDs(s.ctx, req.VideoId)
var eg errgroup.Group
type result struct {
user *user.User
likes int64
comments int64
isLiked bool
}
results := make([]result, len(videoList))
for i := 0; i < len(videoList); i++ {
index := i
eg.Go(func() error {
user, err := rpc.GetUser(s.ctx, &user.InfoRequest{
UserId: videoList[index].UserID,
Token: req.Token,
})
if err != nil {
return err
}
likes, err := rpc.GetVideoLikeCount(s.ctx, &interaction.VideoFavoritedCountRequest{
VideoId: videoList[index].Id,
Token: req.Token,
})
if err != nil {
return err
}
comments, err := rpc.GetCommentCount(s.ctx, &interaction.CommentCountRequest{
VideoId: videoList[index].Id,
Token: req.Token,
})
if err != nil {
return err
}
results[index] = result{
user: user,
likes: likes,
comments: comments,
isLiked: true,
}
return nil
})
}
if err := eg.Wait(); err != nil {
return nil, err
}
var userList []*user.User
var likesList []int64
var commentsList []int64
var isLikedList []bool
for _, result := range results {
userList = append(userList, result.user)
likesList = append(likesList, result.likes)
commentsList = append(commentsList, result.comments)
isLikedList = append(isLikedList, result.isLiked)
}
return pack.VideoList(videoList, userList, likesList, commentsList, isLikedList), err
}