async Task ExecuteLoadFilmsCommand()
{
if (IsBusy)
{
return;
}
IsBusy = true;
try
{
var filmsCount = await filmService.FilmsCount();
pagesCount = (int)Math.Ceiling((double)filmsCount / AppConstants.PAGE_SIZE);
FilmTreshold = 4;
Films.Clear();
var films = await filmService.GetAllFilms();
Films.AddRange(films);
FilteredFilms.AddRange(films);
}
finally
{
IsBusy = false;
}
}
async Task FilmsTresholdReached()
{
if (IsBusy)
{
return;
}
IsBusy = true;
try
{
pageNumber++;
if (pageNumber > pagesCount)
{
FilmTreshold = -1;
return;
}
var films = await filmService.GetAllFilms(pageNumber);
FilteredFilms.AddRange(films);
Films.AddRange(films);
}
finally
{
IsBusy = false;
}
}
public void AddRange(IEnumerable <Film> films)
{
if (films == null)
{
return;
}
var needFilms = films.Except(Films);
foreach (var f in needFilms)
{
if (f.genre != null)
{
AllGenres.Add(f.genre.name);
}
if (f.FilmActor != null)
{
foreach (var fa in f.FilmActor)
{
if (fa.Actor != null)
{
AllActors.Add(fa.Actor.fullName);
}
}
}
}
Films.AddRange(needFilms);
}