public IHttpActionResult RecommendedPosts([FromUri] string AccessToken)
{
var UserId = TokenValidator.VerifyToken(AccessToken);
var UserFollows = UserAuxiliar
.Follows(UserId, SQLContext)
.Select(x => x.Id);
var UserTopics = UserAuxiliar.FollowedSubjects(UserId, SQLContext);
var UserPosts = PostAuxiliar.PostsByAuthor(UserId);
var UserMentionPosts = PostAuxiliar.MentionsUser(UserId, SQLContext);
var FollowsPosts = PostAuxiliar.PostsByAuthors(UserFollows);
var FollowsMentionPosts = PostAuxiliar.MentionsUsers(UserFollows);
var TopicsPosts = PostAuxiliar.PostsBySubjects(UserTopics.Select(x => x.Id));
var PostComparer = new PostComparer();
var RecommendedPosts = UserPosts
.Union(UserMentionPosts, PostComparer)
.Union(FollowsPosts, PostComparer)
.Union(FollowsMentionPosts, PostComparer)
.Union(TopicsPosts, PostComparer)
.ToList();
RecommendedPosts = PostAuxiliar.UpdateOwner(RecommendedPosts, SQLContext);
RecommendedPosts = GraphAuxiliar.OrderPostsByAffinity(UserId, RecommendedPosts, SQLContext);
return(Ok(RecommendedPosts));
}
public IHttpActionResult RecommendedProducs([FromUri] string AccessToken)
{
var UserId = TokenValidator.VerifyToken(AccessToken);
var Recommendation = GraphAuxiliar.OrderProductsByAffinity(UserId, SQLContext.Products.ToList(), SQLContext);
return(Ok(Recommendation));
}
public IHttpActionResult CreatePost([FromBody] Post NewPost, [FromUri] string AccessToken)
{
if (!ModelState.IsValid)
{
return(BadRequest(ModelState));
}
var UserId = TokenValidator.VerifyToken(AccessToken);
NewPost.UserId = UserId;
NewPost = PostAuxiliar.UpdateOwner(NewPost, SQLContext);
NewPost = TreatPostAddons(NewPost);
NoSQLContext.PostCollection.InsertOne(NewPost);
Post Parent = default;
if (NewPost.Parent != null)
{
Parent = FindParent(NewPost);
if (Parent != default)
{
UpdateParent(Parent, NewPost.Id);
}
}
GraphAuxiliar.IncreaseFollowAffinity(NewPost.UserId, NewPost.Mentions, SQLContext);
GraphAuxiliar.IncreaseTopicAffinity(NewPost.UserId, NewPost.Hashtags, SQLContext);
if (Parent != default)
{
GraphAuxiliar.IncreaseFollowAffinity(NewPost.UserId, Parent.UserId, SQLContext);
GraphAuxiliar.IncreaseFollowAffinity(NewPost.UserId, Parent.Mentions, SQLContext);
GraphAuxiliar.IncreaseTopicAffinity(NewPost.UserId, Parent.Hashtags, SQLContext);
}
return(Ok(NewPost));
}
public IHttpActionResult Like([FromUri] string AccessToken, [FromUri] string PostId)
{
var UserId = TokenValidator.VerifyToken(AccessToken);
var PostLiked = PostAuxiliar.PostById(PostId);
if (PostLiked.Likes.Contains(UserId))
{
PostLiked.Likes.Remove(UserId);
}
else
{
PostLiked.Likes.Add(UserId);
}
if (PostLiked.Dislikes.Contains(UserId))
{
PostLiked.Dislikes.Remove(UserId);
}
var Update = Builders <Post> .Update
.Set("Likes", PostLiked.Likes)
.Set("Dislikes", PostLiked.Dislikes);
PostAuxiliar.UpdatePostById(PostLiked.Id, Update);
int TotalLikes = PostLiked.Likes.Count;
int TotalDeslikes = PostLiked.Dislikes.Count;
dynamic Response = new { TotalLikes, TotalDeslikes };
GraphAuxiliar.IncreaseFollowAffinity(UserId, PostLiked.UserId, SQLContext);
GraphAuxiliar.IncreaseTopicAffinity(UserId, PostLiked.Hashtags, SQLContext);
return(Ok(Response));
}
public IHttpActionResult RelatedSubjects([FromUri] int SubjectId)
{
var SimilarSubjects = GraphAuxiliar.CalculateSubjectSimilarity(SubjectId, SQLContext);
return(Ok(SimilarSubjects));
}