ADD : page Favorite and AddToFavorites Method

LivreLand/MauiProgram.cs

@@ -32,6 +32,7 @@ public static class MauiProgram
 			.AddSingleton<ALirePlusTardView>()
 			.AddSingleton<StatutLectureView>()
 			.AddSingleton<EmpruntsPretsView>()
+			.AddSingleton<FavorisView>()
 
             .AddSingleton<NavigatorVM>()
 
@@ -48,7 +49,8 @@ public static class MauiProgram
 			.AddSingleton<FiltrageNoteVM>()
 			.AddSingleton<ALirePlusTardVM>()
 			.AddSingleton<StatutLectureVM>()
-			.AddSingleton<EmpruntsPretsVM>();
+			.AddSingleton<EmpruntsPretsVM>()
+			.AddSingleton<FavorisVM>();
 
 #if DEBUG
         builder.Logging.AddDebug();

LivreLand/View/ContentViews/DetailsLivreButtonView.xaml

@@ -26,6 +26,9 @@
                TextColor="Red"
                VerticalOptions="Center"
                Grid.Column="2"/>
+        <Grid.GestureRecognizers>
+            <TapGestureRecognizer Command="{Binding ButtonCommand}" CommandParameter="{Binding ButtonCommandParameter}"/>
+        </Grid.GestureRecognizers>
     </Grid>
     
 </ContentView>

LivreLand/View/ContentViews/DetailsLivreButtonView.xaml.cs

@@ -1,3 +1,6 @@
+using System.Windows.Input;
+using ViewModels;
+
 namespace LivreLand.View.ContentViews;
 
 public partial class DetailsLivreButtonView : ContentView
@@ -16,6 +19,20 @@ public partial class DetailsLivreButtonView : ContentView
         set => SetValue(DetailsLivreButtonView.ButtonIconProperty, value);
     }
 
+    public static readonly BindableProperty ButtonCommandProperty = BindableProperty.Create(nameof(ButtonCommand), typeof(ICommand), typeof(DetailsLivreButtonView));
+    public ICommand ButtonCommand
+    {
+        get => (ICommand)GetValue(DetailsLivreButtonView.ButtonCommandProperty);
+        set => SetValue(DetailsLivreButtonView.ButtonCommandProperty, value);
+    }
+
+    public static readonly BindableProperty ButtonCommandParameterProperty = BindableProperty.Create(nameof(ButtonCommandParameter), typeof(BookVM), typeof(DetailsLivreButtonView));
+    public BookVM ButtonCommandParameter
+    {
+        get => (BookVM)GetValue(DetailsLivreButtonView.ButtonCommandParameterProperty);
+        set => SetValue(DetailsLivreButtonView.ButtonCommandParameterProperty, value);
+    }
+
     public DetailsLivreButtonView()
 	{
 		InitializeComponent();

LivreLand/View/DetailsLivreView.xaml

@@ -278,6 +278,13 @@
 
                     <contentView:SeparatorCutStartView/>
 
+                    <contentView:DetailsLivreButtonView ButtonIcon="heart.png"
+                                                        ButtonTitle="Ajouter aux favoris"
+                                                        ButtonCommand="{Binding DetailsLivreVM.Manager.AddToFavoritesCommand}"
+                                                        ButtonCommandParameter="{Binding DetailsLivreVM.Book}"/>
+
+                    <contentView:SeparatorCutStartView/>
+
                     <contentView:DetailsLivreButtonView ButtonIcon="folder.png"
                                                         ButtonTitle="Déplacer le livre"/>
 

LivreLand/View/FavorisView.xaml

@@ -3,6 +3,7 @@
              xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
              xmlns:view="clr-namespace:LivreLand.View"
              xmlns:contentView="clr-namespace:LivreLand.View.ContentViews"
+             xmlns:viewModel="clr-namespace:ViewModels;assembly=ViewModels"
              x:Class="LivreLand.View.FavorisView"
              Title="FavorisView">
 
@@ -38,12 +39,12 @@
                            Style="{StaticResource HeaderCollectionViewText}"
                            Grid.Column="1"/>
                 </Grid>
-                <CollectionView ItemsSource="{Binding FavorisBooks}"
+                <CollectionView ItemsSource="{Binding FavorisVM.Manager.AllFavoriteBooks}"
                                 SelectionMode="Single"
                                 SelectionChanged="OnSelectionChanged"
                                 Grid.Row="2">
                     <CollectionView.ItemTemplate>
-                        <DataTemplate>
+                        <DataTemplate x:DataType="viewModel:BookVM">
                             <VerticalStackLayout Margin="10"
                                                  Spacing="20">
                                 <VisualStateManager.VisualStateGroups x:Name="SelectionStates">
@@ -82,7 +83,7 @@
                                                     Stroke="{StaticResource Gray}"
                                                     StrokeShape="RoundRectangle 3"
                                                     StrokeThickness="3">
-                                                <Image Source="couverture_la_horde_du_contrevent.png"
+                                                <Image Source="{Binding ImageSmall}"
                                                        Aspect="AspectFill"
                                                        Grid.Column="0"
                                                        Grid.RowSpan="5"/>
@@ -98,11 +99,11 @@
                                            Style="{StaticResource MasterTitleBookText}"
                                            Grid.Column="2"
                                            Grid.Row="0"/>
-                                    <Label Text="{Binding Author}"
+                                    <Label Text="Author"
                                            Style="{StaticResource MasterAuthorBookText}"
                                            Grid.Column="2"
                                            Grid.Row="1"/>
-                                    <Label Text="{Binding State}"
+                                    <Label Text="{Binding Status}"
                                            Style="{StaticResource MasterStateBookText}"                                   
                                            Grid.Column="2"
                                            Grid.Row="2"/>

LivreLand/View/FavorisView.xaml.cs

@@ -1,23 +1,40 @@
 using LivreLand.Model;
+using LivreLand.ViewModel;
 
 namespace LivreLand.View;
 
 public partial class FavorisView : ContentPage
 {
-    public List<BookModel> FavorisBooks { get; set; } = new List<BookModel>()
-    {
-        new BookModel("La zone du dehors","Alain Damasio","Terminé", 0),
-        new BookModel("Le problème à trois corps","Cixin Liu","Terminé", 0)
-    };
+    #region Properties
+
+    public FavorisVM FavorisVM { get; set; }
+
+    #endregion
+
+    #region Constructor
 
-    public FavorisView()
+    public FavorisView(FavorisVM favorisVM)
 	{
-        BindingContext = this;
+        FavorisVM = favorisVM;
         InitializeComponent();
+        BindingContext = this;
     }
 
+    #endregion
+
+    #region Methods
+
     void OnSelectionChanged(object sender, SelectionChangedEventArgs e)
     {
         //App.Current.MainPage.Navigation.PushAsync(new DetailsLivreView());
     }
+
+    protected override void OnAppearing()
+    {
+        base.OnAppearing();
+
+        FavorisVM.Manager.GetFavoriteBooksCommand.Execute(null);
+    }
+
+    #endregion
 }

LivreLand/View/TousView.xaml.cs

@@ -30,7 +30,7 @@ public partial class TousView : ContentPage
 	{
         if (e.CurrentSelection.FirstOrDefault() is BookVM)
         {
-            var result = new DetailsLivreVM(e.CurrentSelection.FirstOrDefault() as BookVM);
+            var result = new DetailsLivreVM(this.TousVM.Manager, e.CurrentSelection.FirstOrDefault() as BookVM);
             App.Current.MainPage.Navigation.PushAsync(new DetailsLivreView(result));
         }
 	}

LivreLand/ViewModel/DetailsLivreVM.cs

@@ -12,14 +12,17 @@ namespace LivreLand.ViewModel
     {
         #region Properties
 
+        public ManagerVM Manager { get; private set; }
+
         public BookVM Book { get; private set; }
 
         #endregion
 
         #region Constructor
 
-        public DetailsLivreVM(BookVM bookVM) 
+        public DetailsLivreVM(ManagerVM managerVM, BookVM bookVM) 
         {
+            Manager = managerVM;
             Book = bookVM;
         }
 

LivreLand/ViewModel/FavorisVM.cs

@@ -0,0 +1,31 @@
+using PersonalMVVMToolkit;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ViewModels;
+
+namespace LivreLand.ViewModel
+{
+    public class FavorisVM : BaseViewModel
+    {
+        #region Properties
+
+        public NavigatorVM Navigator { get; private set; }
+
+        public ManagerVM Manager { get; private set; }
+
+        #endregion
+
+        #region Constructor
+
+        public FavorisVM(NavigatorVM navigatorVM, ManagerVM managerVM)
+        {
+            Navigator = navigatorVM;
+            Manager = managerVM;
+        }
+
+        #endregion
+    }
+}

Model/Manager.cs

@@ -70,6 +70,22 @@ namespace Model
             return Task.FromResult((result.Item1, result.Item2));
         }
 
+        public Task<(long count, IEnumerable<Book> books)> GetFavoritesBooks(int index, int count)
+        {
+            var result = UserLibraryManager.GetFavoritesBooks(index, count).Result;
+            return Task.FromResult((result.Item1, result.Item2));
+        }
+
+        public Task<bool> AddToFavorites(string id)
+        {
+            return UserLibraryManager.AddToFavorites(id);
+        }
+
+        public Task<bool> RemoveFromFavorites(string id)
+        {
+            return UserLibraryManager.RemoveFromFavorites(id);
+        }
+
         public Task<(long count, IEnumerable<Contact> contacts)> GetContacts(int index, int count)
         {
             var result = UserLibraryManager.GetContacts(index, count).Result;

ViewModels/BookVM.cs

@@ -17,6 +17,12 @@ namespace ViewModels
 
         #region Properties
 
+        public string Id
+        {
+            get => Model.Id;
+            set => SetProperty(Model.Id, value, v => Model.Id = value);
+        }
+
         public string ISBN13
         {
             get => Model.ISBN13;

ViewModels/ManagerVM.cs

@@ -16,6 +16,7 @@ namespace ViewModels
         private readonly ObservableCollection<PublishDateVM> publishDates = new ObservableCollection<PublishDateVM>();
         private readonly ObservableCollection<RatingsVM> ratings = new ObservableCollection<RatingsVM>();
         private readonly ObservableCollection<BookVM> toBeReadBooks = new ObservableCollection<BookVM>();
+        private readonly ObservableCollection<BookVM> favoriteBooks = new ObservableCollection<BookVM>();
         private readonly ObservableCollection<LoanVM> currentLoans = new ObservableCollection<LoanVM>();
         private readonly ObservableCollection<LoanVM> pastLoans = new ObservableCollection<LoanVM>();
         private readonly ObservableCollection<BorrowingVM> pastBorrowings = new ObservableCollection<BorrowingVM>();
@@ -52,6 +53,11 @@ namespace ViewModels
             get => toBeReadBooks;
         }
 
+        public ObservableCollection<BookVM> AllFavoriteBooks
+        {
+            get => favoriteBooks;
+        }
+
         public ObservableCollection<LoanVM> AllCurrentLoans
         {
             get => currentLoans;
@@ -119,6 +125,10 @@ namespace ViewModels
 
         public ICommand GetToBeReadBooksCommand { get; private set; }
 
+        public ICommand GetFavoriteBooksCommand { get; private set; }
+
+        public ICommand AddToFavoritesCommand { get; private set; }
+
         public ICommand GetCurrentLoansCommand { get; private set; }
 
         public ICommand GetPastLoansCommand { get; private set; }
@@ -145,6 +155,8 @@ namespace ViewModels
             GetBooksByRatingCommand = new RelayCommand(() => GetBooksByRating());
             GetAllRatingsCommand = new RelayCommand(() => GetAllRatings());
             GetToBeReadBooksCommand = new RelayCommand(() => GetToBeReadBooks());
+            GetFavoriteBooksCommand = new RelayCommand(() => GetFavoriteBooks());
+            AddToFavoritesCommand = new RelayCommand<BookVM>(bookVM => AddToFavorites(bookVM));
             GetCurrentLoansCommand = new RelayCommand(() =>  GetCurrentLoans());
             GetPastLoansCommand = new RelayCommand(() =>  GetPastLoans());
             GetCurrentBorrowingsCommand = new RelayCommand(() => GetCurrentBorrowings());
@@ -328,6 +340,27 @@ namespace ViewModels
                     toBeReadBooks.Add(b);
                 }
             }
+            OnPropertyChanged(nameof(ToBeReadBooks));
+        }
+
+        private async Task GetFavoriteBooks()
+        {
+            var result = await Model.GetFavoritesBooks(Index, Count);
+            IEnumerable<Book> someBooks = result.books;
+            books.Clear();
+            favoriteBooks.Clear();
+            foreach (var b in someBooks.Select(b => new BookVM(b)))
+            {
+                favoriteBooks.Add(b);
+            }
+            OnPropertyChanged(nameof(AllFavoriteBooks));
+        }
+
+        private async Task AddToFavorites(BookVM bookVM)
+        {
+            var book = await Model.GetBookById(bookVM.Id);
+            await Model.AddToFavorites(book.Id);
+            await GetFavoriteBooks();
         }
 
         private async Task GetCurrentLoans()