From feb052e286b0eba1da8fab8ca7688f9d8cf28f6b Mon Sep 17 00:00:00 2001
From: "maxime.BATISTA@etu.uca.fr" <maximebatista18@gmail.com>
Date: Sat, 3 Jun 2023 18:58:45 +0200
Subject: [PATCH] implement search

---
 .../Data/CatastrophicPerformancesDatabase.cs  |  4 +-
 LocalServices/RecipesService.cs               |  6 +++
 Services/IRecipesService.cs                   |  6 +++
 Views/Components/RecipeView.xaml.cs           |  1 +
 Views/HomePage.xaml                           |  3 +-
 Views/HomePage.xaml.cs                        | 24 ++++++---
 Views/SearchPage.xaml                         | 54 ++++++++++++-------
 Views/SearchPage.xaml.cs                      | 52 +++++++++++++++++-
 8 files changed, 118 insertions(+), 32 deletions(-)

diff --git a/LocalServices/Data/CatastrophicPerformancesDatabase.cs b/LocalServices/Data/CatastrophicPerformancesDatabase.cs
index ba224f2..755a348 100644
--- a/LocalServices/Data/CatastrophicPerformancesDatabase.cs
+++ b/LocalServices/Data/CatastrophicPerformancesDatabase.cs
@@ -172,11 +172,11 @@ namespace LocalServices.Data
                 }
                 catch (IOException e)
                 {
-                    Debug.WriteLine(e + " in thread " + Thread.CurrentThread);
+                    Debug.WriteLine(e.Message + " in thread " + Thread.CurrentThread.Name + " " + Thread.CurrentThread.ManagedThreadId);
                     if (fs != null)
                         fs.Dispose();
 
-                    Thread.Sleep(100);
+                    Thread.Sleep(200);
                 }
             }
             throw new TimeoutException("Could not access file '" + fullPath + "', maximum attempts reached.");
diff --git a/LocalServices/RecipesService.cs b/LocalServices/RecipesService.cs
index fcd9de1..89404a3 100644
--- a/LocalServices/RecipesService.cs
+++ b/LocalServices/RecipesService.cs
@@ -51,5 +51,11 @@ namespace LocalServices
             return data;
         }
 
+        public ImmutableList<RecipeInfo> SearchRecipes(string prompt)
+        {
+            return db.ListAllRecipes()
+                .ConvertAll(r => r.Info)
+                .FindAll(i => i.Name.ToLower().Contains(prompt.ToLower()));
+        }
     }
 }
diff --git a/Services/IRecipesService.cs b/Services/IRecipesService.cs
index 7efbe1a..f2fc18c 100644
--- a/Services/IRecipesService.cs
+++ b/Services/IRecipesService.cs
@@ -14,6 +14,12 @@ namespace Services
         /// <returns>A list containg the popular recipes of the week</returns>
         public ImmutableList<RecipeInfo> PopularRecipes();
 
+        /// <summary>
+        /// performs a search over all the recipes
+        /// </summary>
+        /// <returns>A list containg the recipes that matches the prompt</returns>
+        public ImmutableList<RecipeInfo> SearchRecipes(string prompt);
+
         /// <summary>
         /// Retrieves a recipe from given RecipeInfo
         /// </summary>
diff --git a/Views/Components/RecipeView.xaml.cs b/Views/Components/RecipeView.xaml.cs
index e30c89e..ba9631c 100644
--- a/Views/Components/RecipeView.xaml.cs
+++ b/Views/Components/RecipeView.xaml.cs
@@ -6,6 +6,7 @@ public partial class RecipeView : ContentView
 {
 
     private readonly Action callback;
+    public RecipeInfo Info { get; set; }
 
 	public RecipeView(RecipeInfo info, Action onClickCallback)
 	{
diff --git a/Views/HomePage.xaml b/Views/HomePage.xaml
index 38dcd43..e47cb6d 100644
--- a/Views/HomePage.xaml
+++ b/Views/HomePage.xaml
@@ -38,7 +38,8 @@
                     <Entry
                         Style="{StaticResource UserInput}"
                         Grid.Column="0"
-                        Placeholder="Search here..."/>
+                        Placeholder="Search here..."
+                        x:Name="SearchPrompt"/>
                 </Border>
 
                 <ImageButton 
diff --git a/Views/HomePage.xaml.cs b/Views/HomePage.xaml.cs
index d69b43a..e6c1396 100644
--- a/Views/HomePage.xaml.cs
+++ b/Views/HomePage.xaml.cs
@@ -2,24 +2,24 @@ namespace ShoopNCook.Pages;
 using Models;
 using ShoopNCook.Views;
 using Services;
-using Services;
 
 public partial class HomePage : ContentPage
 {
-	public HomePage(Account account, IEndpoint endpoint)
+    private readonly IRecipesService recipes;
+    private readonly IAccountRecipesPreferencesService preferences;
+    public HomePage(Account account, IEndpoint endpoint)
     {
 		InitializeComponent();
 
-        IRecipesService service = endpoint.RecipesService;
-        IAccountRecipesPreferencesService preferences = service.GetPreferencesOf(account);
+        recipes = endpoint.RecipesService;
+        preferences = recipes.GetPreferencesOf(account);
 
 
-        //TODO this code can be factorised
         void PushRecipe(Layout layout, RecipeInfo info)
         {
             layout.Children.Add(new RecipeView(info, () =>
             {
-                Recipe recipe = service.GetRecipe(info);
+                Recipe recipe = recipes.GetRecipe(info);
                 if (recipe != null)
                     Shell.Current.Navigation.PushAsync(new RecipePage(recipe, preferences, 1));
                 else
@@ -29,7 +29,7 @@ public partial class HomePage : ContentPage
             }));
         }
 
-        service.PopularRecipes().ForEach(recipe => PushRecipe(PopularsList, recipe));
+        recipes.PopularRecipes().ForEach(recipe => PushRecipe(PopularsList, recipe));
         preferences.GetRecommendedRecipes().ForEach(recipe => PushRecipe(RecommendedList, recipe));
 
         ProfilePictureImage.Source = ImageSource.FromUri(account.User.ProfilePicture);
@@ -38,6 +38,14 @@ public partial class HomePage : ContentPage
 
     private async void OnSyncButtonClicked(object sender, EventArgs e)
     {
-        await Shell.Current.Navigation.PushAsync(new SearchPage());
+        string prompt = SearchPrompt.Text;
+        if (string.IsNullOrEmpty(prompt))
+        {
+            return;
+        }
+        var searchPage = new SearchPage(recipes, preferences);
+        await Shell.Current.Navigation.PushAsync(searchPage);
+        searchPage.MakeSearch(SearchPrompt.Text);
+
     }
 }
\ No newline at end of file
diff --git a/Views/SearchPage.xaml b/Views/SearchPage.xaml
index 6d2dce6..4b2c7b2 100644
--- a/Views/SearchPage.xaml
+++ b/Views/SearchPage.xaml
@@ -49,18 +49,28 @@
                 Style="{StaticResource SecondaryBorderShadow}">
                 <Entry
                     Style="{StaticResource UserInput}"
-                    Placeholder="Cake, Lasagna, Vegetarian..."/>
+                    Placeholder="Cake, Lasagna, Vegetarian..."
+                    x:Name="SearchPrompt"/>
             </Border>
-            
             <Border
                 Style="{StaticResource SecondaryBorderShadow}"
                 Grid.Column="1"
                 BackgroundColor="{StaticResource ActionButton}"
                 Stroke="{StaticResource ActionButton}">
-                <ImageButton
-                    Source="search_options.svg"
+                <Label
+                    BackgroundColor="Transparent"
+                    Text="GO"
+                    FontFamily="PoppinsMedium"
+                    TextColor="White"
+                    VerticalTextAlignment="Center"
+                    HorizontalTextAlignment="Center"
                     HeightRequest="40"
-                    WidthRequest="40"/>
+                    WidthRequest="40">
+                    <Label.GestureRecognizers>
+                        <TapGestureRecognizer
+                            Tapped="OnSearchClicked"/>
+                    </Label.GestureRecognizers>
+                </Label>
             </Border>
         </Grid>
 
@@ -69,7 +79,7 @@
         <!-- Selection result count -->
         <Label
             Grid.Row="2"
-            Text="%Nb_Recipes% Recipes Found"
+            Text="{Binding FoundRecipes.Count, StringFormat='{0} Recipes found'}"
             TextColor="{StaticResource TextColorSecondary}"
             FontSize="20"/>
 
@@ -77,22 +87,15 @@
         <Grid
             Grid.Row="3"
             ColumnSpacing="10"
-            ColumnDefinitions="*, *">
-            
+            ColumnDefinitions="*">
+
             <Button 
                 Grid.Column="0"
-                Text="Most Relevent"
+                Text="Best Rated"
                 Style="{StaticResource UserButton}"
                 TextColor="{StaticResource White}"
-                BackgroundColor="{StaticResource Selected}">
-            </Button>
-
-            <Button
-                Grid.Column="1"
-                Text="Most Recent"
-                Style="{StaticResource UserButton}"
-                TextColor="{StaticResource TextColorSecondary}"
-                BackgroundColor="{StaticResource BackgroundSecondary}">
+                BackgroundColor="{StaticResource Selected}"
+                Clicked="OnSortByRateClicked">
             </Button>
 
         </Grid>
@@ -106,9 +109,22 @@
                 AlignContent="Start"
                 Direction="Row"
                 Wrap="Wrap"
-                x:Name="ResultSearchView">
+                BindableLayout.ItemsSource="{Binding FoundRecipes}">
+                <BindableLayout.ItemTemplate>
+                    <DataTemplate>
+                        <ContentView Content="{Binding}" />
+                    </DataTemplate>
+                </BindableLayout.ItemTemplate>
+                <BindableLayout.EmptyViewTemplate>
+                    <DataTemplate>
+                        <Label 
+                            Style="{StaticResource h1}"
+                            Text="No recipes found"/>
+                    </DataTemplate>
+                </BindableLayout.EmptyViewTemplate>
                 
             </FlexLayout>
+
         </ScrollView>
 
     </Grid>
diff --git a/Views/SearchPage.xaml.cs b/Views/SearchPage.xaml.cs
index b6109d3..3776876 100644
--- a/Views/SearchPage.xaml.cs
+++ b/Views/SearchPage.xaml.cs
@@ -1,12 +1,60 @@
+using Microsoft.Maui.Storage;
+using Models;
+using Services;
+using ShoopNCook.Views;
+using System.Collections.ObjectModel;
+
 namespace ShoopNCook.Pages;
 public partial class SearchPage : ContentPage
 {
-	public SearchPage()
+    private readonly IRecipesService recipesService;
+    private readonly IAccountRecipesPreferencesService preferences;
+
+
+    public ObservableCollection<RecipeView> FoundRecipes { get; private init; } = new ObservableCollection<RecipeView>();
+
+	public SearchPage(IRecipesService recipes, IAccountRecipesPreferencesService preferences)
 	{
-		InitializeComponent();
+        BindingContext = this;
+        this.recipesService = recipes;
+        this.preferences = preferences;
+        InitializeComponent();
     }
+
+    public void MakeSearch(string prompt)
+    {
+        if (string.IsNullOrEmpty(prompt))
+        {
+            return;
+        }
+        FoundRecipes.Clear();
+        foreach (RecipeInfo info in recipesService.SearchRecipes(prompt))
+        {
+            FoundRecipes.Add(new RecipeView(info, () =>
+            {
+                Recipe recipe = recipesService.GetRecipe(info);
+                if (recipe != null)
+                    Shell.Current.Navigation.PushAsync(new RecipePage(recipe, preferences, 1));
+                else
+                    UserNotifier.Error("Could not find recipe");
+            }));
+        }
+    }
+
     private async void OnBackButtonClicked(object sender, EventArgs e)
     {
         await Navigation.PopAsync();
     }
+
+    private void OnSortByRateClicked(object sender, EventArgs e)
+    {
+
+    }
+
+    private void OnSearchClicked(object sender, EventArgs e)
+    {
+        MakeSearch(SearchPrompt.Text);
+    }
+
+   
 }
\ No newline at end of file