ICollection <PostGetAllDto> IPostBusinessLogic.GetAll(Guid trendId, UserInfoModel userInfo)
{
ICollection <Post> posts = postRepository.GetAllByFilter(p => p.TrendId == trendId, "Reacts");
ICollection <PostGetAllDto> returnedPosts = new List <PostGetAllDto>();
foreach (Post post in posts)
{
PostGetAllDto postGetAllDto = mapper.Map <PostGetAllDto>(post);
if (userInfo != null && post.Reacts != null)
{
PostReact react = post.Reacts.FirstOrDefault(pr => pr.UserId == userInfo.CreatorId);
if (react != null)
{
if (react.Type == ReactType.Like)
{
postGetAllDto.Liked = true;
}
else if (react.Type == ReactType.Dislike)
{
postGetAllDto.Disliked = true;
}
}
}
returnedPosts.Add(postGetAllDto);
}
return(returnedPosts);
}
PostGetByIdDto IPostBusinessLogic.GetById(Guid id, UserInfoModel userInfo)
{
Post post = postRepository.GetById(id, "Reacts");
if (post == null)
{
return(null);
}
PostGetByIdDto returnedPost = mapper.Map <PostGetByIdDto>(post);
if (userInfo != null && post.Reacts != null)
{
PostReact react = post.Reacts.FirstOrDefault(pr => pr.UserId == userInfo.CreatorId);
if (react != null)
{
if (react.Type == ReactType.Like)
{
returnedPost.Liked = true;
}
else if (react.Type == ReactType.Dislike)
{
returnedPost.Disliked = true;
}
}
}
return(returnedPost);
}
void IPostBusinessLogic.PatchReact(PostPatchReactDto postPatchReact)
{
PostReact postReact = postReactRepository.GetByFilter(
pr => pr.UserId == postPatchReact.CreatorId && pr.PostId == postPatchReact.Id);
ReactType type = (ReactType)System.Enum.Parse(typeof(ReactType), postPatchReact.Type);
int deltaUpvotes = 0, deltaDownvotes = 0;
if (postReact == null)
{
postReact = new PostReact
{
PostId = postPatchReact.Id,
UserId = postPatchReact.CreatorId,
Type = type
};
postReactRepository.Insert(postReact);
postReactRepository.SaveChanges();
ReactsUtils.UpdateDeltas(ref deltaUpvotes, ref deltaDownvotes, type, ReactType.None);
}
else
{
if (type == ReactType.None)
{
ReactsUtils.UpdateDeltas(ref deltaUpvotes, ref deltaDownvotes, type, postReact.Type);
postReactRepository.Delete(postReact.Id);
postReactRepository.SaveChanges();
}
else if (type != postReact.Type)
{
ReactsUtils.UpdateDeltas(ref deltaUpvotes, ref deltaDownvotes, type, postReact.Type);
postReact.Type = type;
postReactRepository.Update(postReact);
postReactRepository.SaveChanges();
}
}
if (deltaUpvotes != 0 || deltaDownvotes != 0)
{
Post post = postRepository.GetById(postPatchReact.Id);
post.Upvotes += deltaUpvotes;
post.Downvotes += deltaDownvotes;
postRepository.Update(post);
postRepository.SaveChanges();
}
}
