public IActionResult DislikePhoto(int postId)
{
var userId = User.CurrentUserId();
if (postId < 0)
{
return(BadRequest("PostId claim error, cannot find PostID"));
}
UserLikePost like = new UserLikePost();
like.UserId = userId;
like.PostId = postId;
Post post = db.Post.Where(p => p.Id == postId).FirstOrDefault();
if (post == null)
{
return(BadRequest("PostId claim error, cannot find PostID"));
}
like.PostUserId = post.UserId;
like.CreateDate = DateTime.Now;
db.UserLikePost.Remove(like);
db.SaveChanges();
return(Ok("Cancel Like successfully"));
}
private async Task Dislike()
{
var likedRes = await _userLikePost.Get <List <Model.UserLikePost> >(new UserLikePostSearchRequest
{
UserId = APIService.loggedProfile.UserId,
PostId = loadedPost.PostId
});
UserLikePost local = likedRes.FirstOrDefault();
if (local == null)
{
UserLikePostUpsertRequest request = new UserLikePostUpsertRequest()
{
Liked = false, UserId = APIService.loggedProfile.UserId, PostId = loadedPost.PostId
};
try
{
await _userLikePost.Insert <Model.UserLikePost>(request);
await SetLikeDislike();
}
catch (Exception ex)
{
await Application.Current.MainPage.DisplayAlert("Error", ex.Message, "OK");
}
}
else if (local.Liked == false || local.Liked == true)
{
try
{
await _userLikePost.Update <Model.UserLikePost>(0, new UserLikePostUpsertRequest()
{
Liked = false,
PostId = loadedPost.PostId,
UserId = APIService.loggedProfile.UserId
});
await SetLikeDislike();
}
catch (Exception ex)
{
await Application.Current.MainPage.DisplayAlert("Error", ex.Message, "OK");
}
}
}
public async Task <JsonResult> IncreaseLikes([FromBody] UserLikePost userLikePost)
{
//If there is no id of the user who like the post, it will be set the current user`s id
if (userLikePost.UserId is null)
{
userLikePost.UserId = this._userManager.GetUserId(User);
}
if (IsUserExist(userLikePost.UserId) && this._postService.IsPostExist(userLikePost.PostId))
{
var post = await this._postService
.GetPostById(userLikePost.PostId);
if (await IsPostLikedAsync(userLikePost.PostId, userLikePost.UserId))
{
//like to be removed
var like = post.UsersLikes.FirstOrDefault(l => l.UserId == userLikePost.UserId && l.PostId == userLikePost.PostId);
post.UsersLikes.Remove(like);
await this._postService.EditPost(post);
return(new JsonResult(false));
}
else
{
// Add new user like post as set post id and user id
post.UsersLikes.Add(new UserLikePost
{
PostId = userLikePost.PostId,
UserId = userLikePost.UserId
});
await this._postService.EditPost(post);
return(new JsonResult(true));
}
}
else
{
throw new ArgumentException($"Invalid data.");
}
}
private async Task SetLikeDislike()
{
var likedRes = await _userLikePost.Get <List <Model.UserLikePost> >(new UserLikePostSearchRequest
{
UserId = APIService.loggedProfile.UserId,
PostId = loadedPost.PostId
});
UserLikePost local = likedRes.FirstOrDefault();
var numberOfLikes = await _userLikePost.Get <List <Model.UserLikePost> >(new UserLikePostSearchRequest()
{
PostId = loadedPost.PostId,
Liked = true
});
var numberOfDislikes = await _userLikePost.Get <List <Model.UserLikePost> >(new UserLikePostSearchRequest()
{
PostId = loadedPost.PostId,
Liked = false
});
NumberOfLikes = numberOfLikes.Count();
NumberOfDislikes = numberOfDislikes.Count();
if (local == null)
{
LikeSource = ImageSource.FromFile("like.png");
DislikeSource = ImageSource.FromFile("dislike.png");
}
else if (local.Liked == true)
{
LikeSource = ImageSource.FromFile("alreadyliked.png");
DislikeSource = ImageSource.FromFile("dislike.png");
}
else if (local.Liked == false)
{
LikeSource = ImageSource.FromFile("like.png");
DislikeSource = ImageSource.FromFile("alreadydisliked.png");
}
}
