From 0190bc4565046e7248fed2193e29a0ab43ca9105 Mon Sep 17 00:00:00 2001
From: Corentin LEMAIRE <corentin.lemaire@etu.uca.fr>
Date: Sun, 21 May 2023 18:16:49 +0200
Subject: [PATCH] Finish Playlists databinding development

---
 Sources/Linaris/App.xaml.cs            |   1 -
 Sources/Linaris/Layout.xaml.cs         |  32 ++--
 Sources/Linaris/LocalFilesPage.xaml    |   4 +-
 Sources/Linaris/LocalFilesPage.xaml.cs |   4 +-
 Sources/Linaris/PlaylistsPage.xaml     |  96 +++++-----
 Sources/Linaris/PlaylistsPage.xaml.cs  | 231 ++++++++++++++++++++++++-
 Sources/Model/Playlist.cs              |  69 +++++++-
 7 files changed, 351 insertions(+), 86 deletions(-)

diff --git a/Sources/Linaris/App.xaml.cs b/Sources/Linaris/App.xaml.cs
index f840c49..e91283f 100644
--- a/Sources/Linaris/App.xaml.cs
+++ b/Sources/Linaris/App.xaml.cs
@@ -13,7 +13,6 @@ public partial class App : Application
     public App()
 	{
 		InitializeComponent();
-
 		MainPage = new AppShell();
 	}
 
diff --git a/Sources/Linaris/Layout.xaml.cs b/Sources/Linaris/Layout.xaml.cs
index 81d840d..4fd35dd 100644
--- a/Sources/Linaris/Layout.xaml.cs
+++ b/Sources/Linaris/Layout.xaml.cs
@@ -1,29 +1,29 @@
-namespace Linaris;
-
-public partial class Layout : ContentView
-{
-	public Layout()
-	{
-		InitializeComponent();
-	}
-
+namespace Linaris;
+
+public partial class Layout : ContentView
+{
+	public Layout()
+	{
+		InitializeComponent();
+	}
+
 	private async void Go_Home(object sender, EventArgs e)
 	{
         await Navigation.PushAsync(new MainPage());
-    }
-
+    }
+
 	private async void Go_Playlists(object sender, EventArgs e)
 	{
 		await Navigation.PushAsync(new PlaylistsPage());
-	}
-
+	}
+
 	private async void Go_Back(object sender, EventArgs e)
 	{
 		await Navigation.PopAsync();
-	}
-
+	}
+
 	private async void Go_Files(object sender, EventArgs e)
 	{
         await Navigation.PushAsync(new LocalFilesPage());
-    }
+    }
 }
\ No newline at end of file
diff --git a/Sources/Linaris/LocalFilesPage.xaml b/Sources/Linaris/LocalFilesPage.xaml
index b0676cc..a83d2a5 100644
--- a/Sources/Linaris/LocalFilesPage.xaml
+++ b/Sources/Linaris/LocalFilesPage.xaml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8" ?>
 <ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
              xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
-             xmlns:local="clr-namespace:Linaris"    
+             xmlns:local="clr-namespace:Linaris"
              xmlns:model="clr-namespace:Model;assembly=Model"
              xmlns:converters="clr-namespace:Linaris.Converters"
              x:Class="Linaris.LocalFilesPage"
@@ -24,7 +24,7 @@
                                 <VerticalStackLayout Margin="10" Grid.ColumnSpan="2">
                                     <Image Source="{Binding ImageURL}" Aspect="Fill" HorizontalOptions="Center" VerticalOptions="Center" HeightRequest="150" WidthRequest="150" IsAnimationPlaying="True" InputTransparent="False">
                                         <Image.GestureRecognizers>
-                                            <TapGestureRecognizer Tapped="ShowSubMenu" Command="{Binding ShowSubMenu}"/>
+                                            <TapGestureRecognizer Tapped="ShowSubMenu"/>
                                         </Image.GestureRecognizers>
                                     </Image>
                                     <Label Text="{Binding Name}" Style="{StaticResource Titre}" IsVisible="{Binding IsRenaming, Converter={StaticResource InverseBooleanConverter}}" HorizontalTextAlignment="Center" WidthRequest="250" LineBreakMode="TailTruncation"/>
diff --git a/Sources/Linaris/LocalFilesPage.xaml.cs b/Sources/Linaris/LocalFilesPage.xaml.cs
index 59fd121..f699cce 100644
--- a/Sources/Linaris/LocalFilesPage.xaml.cs
+++ b/Sources/Linaris/LocalFilesPage.xaml.cs
@@ -159,9 +159,9 @@ namespace Linaris
 
         void ShowSubMenu(object sender, EventArgs e)
         {
-            if (sender is Image button)
+            if (sender is Image image)
             {
-                if (button.BindingContext is CustomTitle customTitle)
+                if (image.BindingContext is CustomTitle customTitle)
                 {
                     if (!customTitle.IsSubMenuVisible)
                     {
diff --git a/Sources/Linaris/PlaylistsPage.xaml b/Sources/Linaris/PlaylistsPage.xaml
index dbfab29..059257d 100644
--- a/Sources/Linaris/PlaylistsPage.xaml
+++ b/Sources/Linaris/PlaylistsPage.xaml
@@ -2,74 +2,56 @@
 <ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
              xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
              xmlns:local="clr-namespace:Linaris"
+             xmlns:model="clr-namespace:Model;assembly=Model"
+             xmlns:converters="clr-namespace:Linaris.Converters"
              x:Class="Linaris.PlaylistsPage"
              Title="PlaylistsPage"
              Style="{StaticResource PageFlyoutTrigger}">
 
-    <Grid Style="{StaticResource GridFlyoutTrigger}">
-        <Grid.RowDefinitions>
-            <RowDefinition Height="8*"/>
-            <RowDefinition Height="*"/>
-        </Grid.RowDefinitions>
+    <ContentPage.Resources>
+        <converters:InverseBooleanConverter x:Key="InverseBooleanConverter" />
+    </ContentPage.Resources>
 
+    <Grid Style="{StaticResource GridFlyoutTrigger}" RowDefinitions="8*,*">
         <local:Layout Grid.Column="0"/>
-
-        <ScrollView Grid.Column="1" BackgroundColor="#404040">
-
+        <ScrollView Grid.Column="1" Grid.Row="0" BackgroundColor="#404040">
             <VerticalStackLayout>
-
                 <SearchBar Style="{StaticResource SearchBar}"/>
-
-                <FlexLayout Direction="Row" AlignItems="Start" JustifyContent="SpaceAround" Wrap="Wrap">
-
-                    <VerticalStackLayout Margin="10">
-                        <ImageButton Source="playlist.jpg" SemanticProperties.Description="Playlist 1980's" Style="{StaticResource Pochette}"/>
-                        <Label Text="1980's" Style="{StaticResource Titre}"></Label>
-                    </VerticalStackLayout>
-
-                    <VerticalStackLayout Margin="10">
-                        <ImageButton Source="playlist1.png" SemanticProperties.Description="Playlist 1990's" Style="{StaticResource Pochette}"/>
-                        <Label Text="1990's" Style="{StaticResource Titre}"></Label>
-                    </VerticalStackLayout>
-
-                    <VerticalStackLayout Margin="10">
-                        <ImageButton Source="playlist2.jpg" SemanticProperties.Description="Playlist 2000's" Style="{StaticResource Pochette}"/>
-                        <Label Text="2000's" Style="{StaticResource Titre}"></Label>
-                    </VerticalStackLayout>
-
-                    <VerticalStackLayout Margin="10">
-                        <ImageButton Source="playlist3.jpg" SemanticProperties.Description="Playlist 2010's" Style="{StaticResource Pochette}"/>
-                        <Label Text="2010's" Style="{StaticResource Titre}"></Label>
-                    </VerticalStackLayout>
-
-                    <VerticalStackLayout Margin="10">
-                        <ImageButton Source="playlist4.png" SemanticProperties.Description="Playlist 2020" Style="{StaticResource Pochette}"/>
-                        <Label Text="2020" Style="{StaticResource Titre}"></Label>
-                    </VerticalStackLayout>
-
-                    <VerticalStackLayout Margin="10">
-                        <ImageButton Source="playlist5.jpg" SemanticProperties.Description="Playlist 2021" Style="{StaticResource Pochette}"/>
-                        <Label Text="2021" Style="{StaticResource Titre}"></Label>
-                    </VerticalStackLayout>
-
-                    <VerticalStackLayout Margin="10">
-                        <ImageButton Source="playlist6.png" SemanticProperties.Description="Playlist 2022" Style="{StaticResource Pochette}"/>
-                        <Label Text="2022" Style="{StaticResource Titre}"></Label>
-                    </VerticalStackLayout>
-
-                    <VerticalStackLayout Margin="10">
-                        <ImageButton Source="playlist7.png" SemanticProperties.Description="Playlist 2023" Style="{StaticResource Pochette}"/>
-                        <Label Text="2023" Style="{StaticResource Titre}"></Label>
-                    </VerticalStackLayout>
-
+                <FlexLayout Direction="Row" AlignItems="Start" BindableLayout.ItemsSource="{Binding Playlists}" JustifyContent="SpaceAround" Wrap="Wrap">
+                    <BindableLayout.ItemTemplate>
+                        <DataTemplate>
+                            <Grid ColumnDefinitions="2*,*">
+                                <VerticalStackLayout Margin="10" Grid.ColumnSpan="2">
+                                    <Image Source="{Binding ImageURL}" Aspect="Fill" HorizontalOptions="Center" VerticalOptions="Center" HeightRequest="150" WidthRequest="150" IsAnimationPlaying="True" InputTransparent="False">
+                                        <Image.GestureRecognizers>
+                                            <TapGestureRecognizer Tapped="ShowSubMenu"/>
+                                        </Image.GestureRecognizers>
+                                    </Image>
+                                    <Label Text="{Binding Name}" Style="{StaticResource Titre}" IsVisible="{Binding IsRenaming, Converter={StaticResource InverseBooleanConverter}}" HorizontalTextAlignment="Center" WidthRequest="250" LineBreakMode="TailTruncation"/>
+                                    <Entry TextChanged="CheckNewName" Text="{Binding NewName}" Placeholder="Nouveau nom" IsVisible="{Binding IsRenaming}" Completed="RenamePlaylist"/>
+                                </VerticalStackLayout>
+
+                                <Grid Grid.ColumnSpan="2" BackgroundColor="Grey" HeightRequest="125" WidthRequest="155" RowDefinitions="*,*,*,*" IsVisible="{Binding IsSubMenuVisible}">
+                                    <Button Grid.Row="0" Text="Accéder à la playlist" Clicked="GoToPlaylist"/>
+                                    <Button Grid.Row="1" Text="Supprimer" Clicked="RemovePlaylist"/>
+                                    <Button Grid.Row="2" Text="Renommer" Clicked="RenamePlaylist"/>
+                                    <Button Grid.Row="3" Text="Changer l'image" Clicked="ChangeImage"/>
+                                </Grid>
+
+                                <Grid.GestureRecognizers>
+                                    <TapGestureRecognizer />
+                                </Grid.GestureRecognizers>
+                            </Grid>
+                        </DataTemplate>
+                    </BindableLayout.ItemTemplate>
                 </FlexLayout>
-
+                <Button WidthRequest="300" HeightRequest="50" Margin="0,20,0,20" BackgroundColor="{StaticResource Primary}" Text="Ajouter d'autres playlists" Clicked="ShowEntryPlaylist"/>
+                <Entry WidthRequest="300" HeightRequest="50" Margin="0,20,0,20" BackgroundColor="DimGrey" Text="" Placeholder="Nom de la nouvelle playlist" Completed="CreatePlaylist" IsVisible="{Binding IsNewPlaylist}"/>
             </VerticalStackLayout>
-
         </ScrollView>
-        
         <local:FooterPage Grid.Row="1" Grid.ColumnSpan="2"/>
-
+        <Grid.GestureRecognizers>
+            <TapGestureRecognizer Tapped="ResetAll"/>
+        </Grid.GestureRecognizers>
     </Grid>
-
 </ContentPage>
diff --git a/Sources/Linaris/PlaylistsPage.xaml.cs b/Sources/Linaris/PlaylistsPage.xaml.cs
index 5a4f385..f5e43e3 100644
--- a/Sources/Linaris/PlaylistsPage.xaml.cs
+++ b/Sources/Linaris/PlaylistsPage.xaml.cs
@@ -1,9 +1,236 @@
+using Model;
+using Model.Stub;
+using System.Collections.ObjectModel;
+
 namespace Linaris;
 
 public partial class PlaylistsPage : ContentPage
 {
-	public PlaylistsPage()
+
+    private ObservableCollection<Playlist> playlists = App.Manager.GetPlaylists();
+
+    public ObservableCollection<Playlist> Playlists
+    {
+        get => playlists;
+    }
+
+    private bool isNewPlaylist = false;
+
+    public bool IsNewPlaylist
+    {
+        get => isNewPlaylist;
+        set
+        {
+            isNewPlaylist = value;
+            OnPropertyChanged(nameof(IsNewPlaylist));
+        }
+    }
+
+    public PlaylistsPage()
 	{
 		InitializeComponent();
-	}
+        BindingContext = this;
+    }
+
+    // Reset methods
+
+    void ResetAll(object sender, EventArgs e)
+    {
+        ResetSubMenus(sender, e);
+        ResetRenaming(sender, e);
+        IsNewPlaylist = false;
+    }
+
+    void ResetSubMenus(object sender, EventArgs e)
+    {
+        foreach (var Playlist in playlists)
+        {
+            Playlist.IsSubMenuVisible = false;
+        }
+    }
+
+    void ResetRenaming(object sender, EventArgs e)
+    {
+        foreach (var Playlist in playlists)
+        {
+            Playlist.IsRenaming = false;
+            if (!CheckRenaming(Playlist))
+            {
+                Playlist.NewName = Playlist.Name;
+            }
+            else
+            {
+                Playlist.Name = Playlist.NewName;
+            }
+        }
+    }
+
+
+    // Add methods
+
+    void CreatePlaylist(object sender, EventArgs e)
+    {
+        if (sender is Entry entry)
+        {
+            if (!HasSameName(entry.Text))
+            {
+                Playlist playlist = new Playlist(entry.Text, "", "none.png");
+                App.Manager.AddPlaylist(playlist);
+                playlists.Add(playlist);
+                IsNewPlaylist = false;
+            }
+        }
+    }
+
+
+    // Remove methods
+
+    void RemovePlaylist(object sender, EventArgs e)
+    {
+        if (sender is Button button)
+        {
+            if (button.BindingContext is Playlist playlist)
+            {
+                App.Manager.RemovePlaylist(playlist);
+                playlists.Remove(playlist);
+            }
+        }
+    }
+
+
+    // Show methods
+
+    void ShowSubMenu(object sender, EventArgs e)
+    {
+        if (sender is Image image)
+        {
+            if (image.BindingContext is Playlist playlist)
+            {
+                if (!playlist.IsSubMenuVisible)
+                {
+                    ResetAll(sender, e);
+                    playlist.IsSubMenuVisible = true;
+                }
+                else
+                {
+                    ResetSubMenus(sender, e);
+                }
+            }
+        }
+    }
+
+    void ShowEntryPlaylist(object sender, EventArgs e)
+    {
+        IsNewPlaylist = true;
+    }
+
+
+    // Change methods
+
+    void RenamePlaylist(object sender, EventArgs e)
+    {
+        ResetSubMenus(sender, e);
+        if (sender is Button button)
+        {
+            if (button.BindingContext is Playlist playlist)
+            {
+                if (!playlist.IsRenaming)
+                {
+                    ResetRenaming(sender, e);
+                    playlist.IsRenaming = true;
+                }
+                else
+                {
+                    ResetRenaming(sender, e);
+                }
+            }
+        }
+        else if (sender is Entry entry)
+        {
+            if (entry.BindingContext is Playlist playlist)
+            {
+                if (!CheckRenaming(playlist))
+                {
+                    entry.TextColor = Color.FromRgb(255,0,0);
+                }
+                else
+                {
+                    ResetRenaming(sender, e);
+                    playlist.Name = playlist.NewName;
+                }
+            }
+        }
+    }
+
+    private async void ChangeImage(object sender, EventArgs e)
+    {
+        var result = await FilePicker.PickAsync(new PickOptions
+        {
+            PickerTitle = "Choisissez une nouvelle image !",
+            FileTypes = FilePickerFileType.Images
+        });
+
+        if (result == null)
+        {
+            return;
+        }
+
+        if (sender is Button button)
+        {
+            if (button.BindingContext is Playlist playlist)
+            {
+                playlist.ImageURL = result.FullPath;
+            }
+        }
+    }
+
+    // Search methods
+
+    bool HasSameName(string name)
+    {
+        foreach(Playlist playlist in playlists)
+        {
+            if (playlist.Name == name)
+            {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    // Check methods
+
+    void CheckNewName(object sender, EventArgs e)
+    {
+        if (sender is Entry entry)
+        {
+            if (entry.BindingContext is Playlist playlist)
+            {
+                if (!CheckRenaming(playlist))
+                {
+                    entry.TextColor = Color.FromRgb(255, 0, 0);
+                }
+                else
+                {
+                    entry.TextColor = Color.FromRgb(255, 255, 255);
+                }
+            }
+        }
+    }
+
+    bool CheckRenaming(Playlist playlist)
+    {
+        if (playlist.NewName.Length > Manager.MAX_NAME_LENGTH || string.IsNullOrWhiteSpace(playlist.NewName) || HasSameName(playlist.NewName))
+        {
+            return false;
+        }
+        return true;
+    }
+
+    // Navigation
+
+    async void GoToPlaylist(object sender, EventArgs e)
+    {
+        await Navigation.PushAsync(new PlaylistPage());
+    }
 }
\ No newline at end of file
diff --git a/Sources/Model/Playlist.cs b/Sources/Model/Playlist.cs
index 60e0680..92dc12f 100644
--- a/Sources/Model/Playlist.cs
+++ b/Sources/Model/Playlist.cs
@@ -1,12 +1,19 @@
 using Model.Stub;
 using System.Collections.ObjectModel;
+using System.ComponentModel;
+using System.Runtime.CompilerServices;
 using System.Security.Cryptography;
 using System.Xml.Serialization;
 
 namespace Model;
 
-public class Playlist
+public class Playlist : INotifyPropertyChanged
 {
+    public event PropertyChangedEventHandler? PropertyChanged;
+
+    protected void OnPropertyChanged([CallerMemberName] string? propertyName = null)
+        => PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
+
     public string Name
     {
         get => name;
@@ -17,11 +24,27 @@ public class Playlist
             {
                 name = value;
             }
+            OnPropertyChanged();
         }
     }
 
     private string name = Manager.DEFAULT_NAME;
 
+    public string NewName
+    {
+        get => newName;
+
+        set
+        {
+            if (value != null && value.Length < Manager.MAX_NAME_LENGTH)
+            {
+                newName = value;
+            }
+        }
+    }
+
+    private string newName = Manager.DEFAULT_NAME;
+
     public string Description
     {
         get => description;
@@ -32,6 +55,7 @@ public class Playlist
             {
                 description = value;
             }
+            OnPropertyChanged();
         }
     }
 
@@ -43,9 +67,14 @@ public class Playlist
         {
             return titles;
         }
+        private set
+        {
+            titles = value;
+            OnPropertyChanged();
+        }
     }
 
-    private readonly ObservableCollection<CustomTitle> titles = new ObservableCollection<CustomTitle>();
+    private ObservableCollection<CustomTitle> titles = new ObservableCollection<CustomTitle>();
 
     public string ImageURL
     {
@@ -58,14 +87,11 @@ public class Playlist
                 value = "none.png";
                 imageURL = value;
             }
-            if (value.Contains(' '))
-            {
-                imageURL = value.Replace(' ', '_');
-            }
             else if (value.Contains('.'))
             {
                 imageURL = value;
             }
+            OnPropertyChanged();
         }
     }
 
@@ -106,9 +132,40 @@ public class Playlist
         }
     }
 
+    public bool IsSubMenuVisible
+    {
+        get => isSubMenuVisible;
+        set
+        {
+            if (isSubMenuVisible != value)
+            {
+                isSubMenuVisible = value;
+            }
+            OnPropertyChanged(nameof(IsSubMenuVisible));
+        }
+    }
+
+    private bool isSubMenuVisible;
+
+    public bool IsRenaming
+    {
+        get => isRenaming;
+        set
+        {
+            if (isRenaming != value)
+            {
+                isRenaming = value;
+            }
+            OnPropertyChanged();
+        }
+    }
+
+    private bool isRenaming = false;
+
     public Playlist(string nom, string description, string imageURL)
     {
         Name = nom;
+        NewName = nom;
         Description = description;
         ImageURL = imageURL;
     }