public async Task <IEnumerable <UserProfilePreviewDTO> > GetUsersAsync(UserListCriterion criterion)
{
if (criterion == null)
{
criterion = new UserListCriterion();
}
return(await Task.Run(() =>
_dataStore.UserProfiles.GetAll()
.Filtering(criterion)
.Sorting(criterion)
.Paging(criterion.PageNumber, criterion.PageSize)
.Select(x => x.MapToDTO())));
}
public static IQueryable <UserProfile> Sorting(this IQueryable <UserProfile> posts, UserListCriterion criterion)
{
return(posts.OrderByDescending(x => x.Posts.Sum(y => y.Visits)));
}
public static IQueryable <UserProfile> Filtering(this IQueryable <UserProfile> posts, UserListCriterion criterion)
{
if (criterion == null)
{
return(posts);
}
if (!String.IsNullOrEmpty(criterion.Username))
{
posts = posts.Where(x => x.Username.Contains(criterion.Username));
}
if (!String.IsNullOrEmpty(criterion.Fullname))
{
posts = posts.Where(x => $"{x.FirstName} {x.LastName}".Contains(criterion.Fullname));
}
if (!String.IsNullOrEmpty(criterion.City))
{
posts = posts.Where(x => x.City.Contains(criterion.City));
}
if (criterion.Online)
{
posts = posts.Where(x => (x.LastVisit - DateTime.Now).Duration().Minutes < 5 &&
(x.LastVisit - DateTime.Now).Duration().Hours == 0 &&
(x.LastVisit - DateTime.Now).Duration().Days == 0);
}
return(posts);
}