public async override void OnNavigatedTo(NavigationParameters parameters)
{
base.OnNavigatedTo(parameters);
try
{
if (parameters.Any(a => a.Key.Equals("posterId")))
{
Poster = await App.ApiService.GetPoster(parameters.GetValue <int>("posterId"), "bearer " + Settings.AuthToken);
PetType = Poster.PetType == 1 ? "Cachorro" : "Gato";
State = Poster.State;
foreach (var item in Poster.PetPictures)
{
byte[] file;
try
{
file = await App.ApiService.Download(item.Url);
} catch { continue; }
PetImages.Add(new PetPictureItem
{
Id = Guid.NewGuid().ToString(),
Image = file
});
}
EditPosterCommand.RaiseCanExecuteChanged();
}
}
catch (Exception ex)
{
Debug.WriteLine(ex.StackTrace);
}
}
private async void EditPosterCommandExecute()
{
ShowLoading = true;
try
{
var posterInput = new PosterInput
{
Id = Poster.Id,
PetName = Poster.PetName,
PetPictures = PetImages.Select(s => s.Image).ToList(),
PetType = PetType == "Cachorro" ? 1 : 2,
Castrated = Poster.Castrated,
Dewormed = Poster.Dewormed,
IsAdopted = Poster.IsAdopted,
Country = "Brasil",
State = Poster.State,
City = Poster.City
};
await App.ApiService.UpdatePoster(posterInput, "bearer " + Settings.AuthToken);
await _dialogService.DisplayAlertAsync("Sucesso!", "Anúncio atualizado com sucesso.", "Ok");
await _navigationService.NavigateAsync($"{nameof(MyPostersPage)}");
}
catch (Exception ex)
{
Debug.WriteLine(ex.StackTrace);
}finally
{
ShowLoading = false;
}
}
private async void PickPhotoCommandExecute()
{
try
{
var action = await DisplayPictureAlert();
var pictureService = Xamarin.Forms.DependencyService.Get <PictureService>();
var file = await pictureService.GetPicture(action);
if (file != null)
{
using (var memoryStream = new MemoryStream())
{
file.GetStream().CopyTo(memoryStream);
file.Dispose();
PetImages.Add(new PetPictureItem
{
Id = Guid.NewGuid().ToString(),
Image = memoryStream.ToArray()
});
EditPosterCommand.RaiseCanExecuteChanged();
}
}
}
catch (Exception ex)
{
await _dialogService.DisplayAlertAsync("Erro", ex.Message, "Fechar");
}
}
private async void CreatePosterCommandExecute()
{
ShowLoading = true;
try
{
var posterInput = new PosterInput
{
UserId = int.Parse(Settings.UserId),
PetName = PetName,
PetPictures = PetImages.Select(s => s.Image).ToList(),
PetType = PetType == "Cachorro" ? 1 : 2,
Castrated = IsCastrated,
Dewormed = IsDewormed,
Country = "Brasil",
State = State,
City = City
};
await App.ApiService.CreatePoster(posterInput, "bearer " + Settings.AuthToken);
await _dialogService.DisplayAlertAsync("Sucesso!", "Anúncio criado com sucesso.", "Ok");
await _navigationService.NavigateAsync($"app:///{nameof(MenuPage)}/NavigationPage/{nameof(MyPostersPage)}");
}
catch (Exception ex)
{
Debug.WriteLine(ex.StackTrace);
}
finally
{
ShowLoading = false;
}
}
private bool EditPosterCommandCanExecute()
{
return(PetImages.Any() &&
!string.IsNullOrEmpty(Poster.PetName) &&
Poster.PetType > 0 &&
!string.IsNullOrEmpty(Poster.State) &&
!string.IsNullOrEmpty(Poster.City));
}
private bool CreatePosterCommandCanExecute()
{
return(PetImages.Any() &&
!string.IsNullOrEmpty(PetName) &&
!string.IsNullOrEmpty(PetType) &&
!string.IsNullOrEmpty(State) &&
!string.IsNullOrEmpty(City));
}
public IActionResult GetImage(int id)
{
// don't care about validation, if it's invalid
// then just get the default image
// this method returns the image path and the MIME type.
var image = PetImages.GetImageById(id);
return(File(image.Path, image.MIME));
}
private void DeletePetPictureCommandExecute(string imageId)
{
PetImages.Remove(PetImages.Single(w => w.Id == imageId));
EditPosterCommand.RaiseCanExecuteChanged();
}
