public ClothesViewModelItem(IClothesDetailDomain clothesDetail, IClothesTypeDomain clothesType,
IClothesRestService clothesRestService,
IClothesDetailNavigationService clothesDetailNavigationService)
{
ClothesDetail = clothesDetail;
_clothesType = clothesType;
_clothesDetailNavigationService = clothesDetailNavigationService;
_image = Observable.Return(ImageSource.FromFile("empty_image.png")).
ToProperty(this, nameof(Image));
ImageCommand = ReactiveCommand.CreateFromTask(() => GetImageSource(clothesRestService, ClothesDetail.Id));
_image = ImageCommand.ToProperty(this, nameof(Image), scheduler: RxApp.MainThreadScheduler);
this.WhenAnyValue(x => x.Image).
Where(x => x != null).
Subscribe(x => ImageLoad = true);
ClothesDetailCommand = ReactiveCommand.CreateFromTask(ToClothesDetail);
}
public ClothesViewModel(IClothesRestService clothesRestService, IClothesNavigationService clothesNavigationService,
IChoiceNavigationService choiceNavigationService,
IClothesDetailNavigationService clothesDetailNavigationService)
: base(clothesNavigationService)
{
_clothes = this.WhenAnyValue(x => x.NavigationParameters).
Where(clothesParameters => clothesParameters != null).
SelectMany(parameters => Observable.FromAsync(() => GetClothes(parameters, clothesRestService, clothesDetailNavigationService))).
ToProperty(this, nameof(Clothes), scheduler: RxApp.MainThreadScheduler);
ClothesFilterCommand = ReactiveCommand.Create <Unit, IReadOnlyList <ClothesViewModelItem> >(
_ => FilterAndSortingViewModelFactory.GetClothesFiltered(Clothes, FilterViewModel.ClothesFilters,
SortingViewModel.ClothesSortingType));
_sortingViewModel = Observable.Return(new SortingViewModel(ClothesFilterCommand)).
ToProperty(this, nameof(SortingViewModel));
_filterViewModel = this.WhenAnyValue(x => x.Clothes, x => x.NavigationParameters, (clothes, parameters) => (clothes, parameters)).
Where(clothesNavigation => clothesNavigation.clothes != null && clothesNavigation.parameters != null).
Select(clothesNavigation => new FilterViewModel(clothesNavigation.parameters !, clothesNavigation.clothes,
ClothesFilterCommand)).
ToProperty(this, nameof(FilterViewModel));
_clothesFiltered = this.WhenAnyValue(x => x.FilterViewModel).
Where(filterViewModel => filterViewModel != null).
SelectMany(filterViewModel => ClothesFilterCommand).
ToProperty(this, nameof(ClothesFiltered));
_clothesViewModelColumnItems = this.WhenAnyValue(x => x.ClothesFiltered).
Where(clothes => clothes != null).
Select(GetClothesItems).
ToProperty(this, nameof(ClothesViewModelColumnItems));
ImagesCommand = ReactiveCommand.CreateFromObservable <int, ImageSource>(
itemIndex => ClothesViewModelColumnItems[itemIndex].ClothesViewModelItemLeft !.
ImageCommand.Execute(Unit.Default));
ChoiceNavigateCommand = ReactiveCommand.CreateFromTask(_ => choiceNavigationService.NavigateTo(new ChoiceNavigationParameters()));
this.WhenAnyValue(x => x.Clothes, x => x.FilterViewModel, (clothes, filterViewModel) => (clothes, filterViewModel)).
Where(clothes => clothes.clothes != null && clothes.filterViewModel != null).
Select(_ => Unit.Default).
InvokeCommand(ClothesFilterCommand);
}
/// <summary>
/// Получить модели одежды
/// </summary>
private static async Task <IReadOnlyCollection <ClothesViewModelItem> > GetClothes(ClothesNavigationParameters?clothesParameters,
IClothesRestService clothesRestService,
IClothesDetailNavigationService clothesDetailNavigationService) =>
await clothesParameters.ToResultValueNullCheck(new ErrorResult(ErrorResultType.ValueNotFound, nameof(ClothesNavigationParameters))).
ResultValueBindOkToCollectionAsync(parameters =>
clothesRestService.GetClothesDetails(parameters.GenderType, parameters.ClothesTypeDomain.Name).
ResultCollectionOkTaskAsync(clothes =>
clothes.Select(clotheItem => new ClothesViewModelItem(clotheItem, parameters.ClothesTypeDomain,
clothesRestService, clothesDetailNavigationService)))).
WhereContinueTaskAsync(result => result.OkStatus,
result => result.Value,
result => new List <ClothesViewModelItem>());
