public async Task <IActionResult> Put(PostRatingDto postRatingDto)
{
var userName = User.Identity.Name;
var avgRating = await ratingService.RatePost(postRatingDto, userName);
await notificationService.RatingNotify(postRatingDto, userName);
return(Ok(new { AvgRating = avgRating }));
}
public async Task <bool> RatingNotify(PostRatingDto postRatingDto, string whoRated)
{
var post = await repository.GetById <Post>(postRatingDto.Id);
var userName = post.User.UserName;
if (whoRated == userName)
{
return(false);
}
string title = "Rating";
string text = $"{whoRated} Rated your post by {postRatingDto.Value}";
return(await NotifyUser(title, text, userName));
}
public async Task <double> RatePost(PostRatingDto postRatingDto, string userName)
{
var value = postRatingDto.Value;
var postId = postRatingDto.Id;
if (value > 10 || value < 1)
{
throw new BadRequestException("invalid value");
}
var user = await userManager.FindByNameAsync(userName);
var post = await repository.GetById <Post>(postId);
var rating = post.Ratings.SingleOrDefault(x => x.UserId == user.Id);
if (rating == null)
{
rating = new Rating();
rating.PostId = postId;
rating.User = user;
rating.Value = value;
post.Ratings.Add(rating);
}
else
{
rating.Value = value;
}
await repository.SaveAll();
return(post.Ratings.Select(x => x.Value).Average());
}
