From 38475a96adb4b1382d80fe2f2cc5ec98dd6f59f1 Mon Sep 17 00:00:00 2001
From: Mateusz Skoczek <mateusz5432160@gmail.com>
Date: Sat, 9 Mar 2024 02:56:56 +0100
Subject: [PATCH] subscription view finished

---
 .../en-US/SubscriptionsViewResources.resw     |  15 ++
 .../Helpers/PlaylistViewModel.cs              |  39 ++++++
 .../Subscriptions/SubscriptionsViewModel.cs   | 132 +++++++++++++++++-
 .../Subscriptions/SubscriptionsView.xaml      | 105 +++++++++++++-
 VDownload.Models/Playlist.cs                  |   1 +
 VDownload.Models/Source.cs                    |   3 +-
 VDownload.Models/SubscriptionList.cs          |  20 ---
 VDownload.Models/SubscriptionsVideoList.cs    |  12 ++
 VDownload.Models/VideoCollection.cs           |   1 -
 .../Subscription.cs                           |  32 +++++
 .../SubscriptionsDataService.cs               |  89 +++++++++++-
 ...ownload.Services.Data.Subscriptions.csproj |   9 ++
 .../VDownload.Sources.csproj                  |   1 +
 VDownload/App.xaml.cs                         |   5 +-
 VDownload/Dictionaries/Colors.xaml            |   2 +
 VDownload/Dictionaries/Converters.xaml        |   3 +
 VDownload/VDownload.csproj                    |   1 +
 17 files changed, 439 insertions(+), 31 deletions(-)
 create mode 100644 VDownload.Core/VDownload.Core.ViewModels/Subscriptions/Helpers/PlaylistViewModel.cs
 delete mode 100644 VDownload.Models/SubscriptionList.cs
 create mode 100644 VDownload.Models/SubscriptionsVideoList.cs
 create mode 100644 VDownload.Services/VDownload.Services.Data/VDownload.Services.Data.Subscriptions/Subscription.cs

diff --git a/VDownload.Core/VDownload.Core.Strings/Strings/en-US/SubscriptionsViewResources.resw b/VDownload.Core/VDownload.Core.Strings/Strings/en-US/SubscriptionsViewResources.resw
index 8590552..1e97e5b 100644
--- a/VDownload.Core/VDownload.Core.Strings/Strings/en-US/SubscriptionsViewResources.resw
+++ b/VDownload.Core/VDownload.Core.Strings/Strings/en-US/SubscriptionsViewResources.resw
@@ -117,7 +117,22 @@
   <resheader name="writer">
     <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
   </resheader>
+  <data name="DuplicateError" xml:space="preserve">
+    <value>Playlist has been already added</value>
+  </data>
+  <data name="ErrorInfoBar.Title" xml:space="preserve">
+    <value>Error</value>
+  </data>
   <data name="Header.Text" xml:space="preserve">
     <value>Subscriptions</value>
   </data>
+  <data name="PlaylistSearchButton.Content" xml:space="preserve">
+    <value>Add</value>
+  </data>
+  <data name="PlaylistUrlTextBox.PlaceholderText" xml:space="preserve">
+    <value>Playlist URL</value>
+  </data>
+  <data name="RemovePlaylistButton.Content" xml:space="preserve">
+    <value>Remove</value>
+  </data>
 </root>
\ No newline at end of file
diff --git a/VDownload.Core/VDownload.Core.ViewModels/Subscriptions/Helpers/PlaylistViewModel.cs b/VDownload.Core/VDownload.Core.ViewModels/Subscriptions/Helpers/PlaylistViewModel.cs
new file mode 100644
index 0000000..8f77732
--- /dev/null
+++ b/VDownload.Core/VDownload.Core.ViewModels/Subscriptions/Helpers/PlaylistViewModel.cs
@@ -0,0 +1,39 @@
+using CommunityToolkit.Mvvm.ComponentModel;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using VDownload.Models;
+
+namespace VDownload.Core.ViewModels.Subscriptions.Helpers
+{
+    public partial class PlaylistViewModel : ObservableObject
+    {
+        #region PROPERTIES
+
+        [ObservableProperty]
+        protected Guid _guid;
+
+        [ObservableProperty]
+        protected string _name;
+
+        [ObservableProperty]
+        protected Source _source;
+
+        #endregion
+
+
+
+        #region CONSTRUCTORS
+
+        public PlaylistViewModel(string name, Source source, Guid guid)
+        {
+            _name = name;
+            _source = source;
+            _guid = guid;
+        }
+
+        #endregion
+    }
+}
diff --git a/VDownload.Core/VDownload.Core.ViewModels/Subscriptions/SubscriptionsViewModel.cs b/VDownload.Core/VDownload.Core.ViewModels/Subscriptions/SubscriptionsViewModel.cs
index 663b143..921b770 100644
--- a/VDownload.Core/VDownload.Core.ViewModels/Subscriptions/SubscriptionsViewModel.cs
+++ b/VDownload.Core/VDownload.Core.ViewModels/Subscriptions/SubscriptionsViewModel.cs
@@ -1,13 +1,141 @@
-using CommunityToolkit.Mvvm.ComponentModel;
+using ABI.System;
+using CommunityToolkit.Mvvm.ComponentModel;
+using CommunityToolkit.Mvvm.Input;
 using System;
 using System.Collections.Generic;
+using System.Collections.ObjectModel;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
+using VDownload.Core.ViewModels.Subscriptions.Helpers;
+using VDownload.Models;
+using VDownload.Services.Data.Subscriptions;
+using VDownload.Services.UI.StringResources;
+using VDownload.Sources;
+using VDownload.Sources.Common;
 
 namespace VDownload.Core.ViewModels.Subscriptions
 {
-    public class SubscriptionsViewModel : ObservableObject
+    public partial class SubscriptionsViewModel : ObservableObject
     {
+        #region SERVICES
+
+        protected readonly ISearchService _searchService;
+        protected readonly IStringResourcesService _stringResourcesService;
+        protected readonly ISubscriptionsDataService _subscriptionsDataService;
+
+        #endregion
+
+
+
+        #region PROPERTIES
+
+        [ObservableProperty]
+        protected ObservableCollection<PlaylistViewModel> _playlists;
+
+        [ObservableProperty]
+        protected string _url;
+
+        [ObservableProperty]
+        protected bool _loading;
+
+        [ObservableProperty]
+        protected string _error;
+
+        [ObservableProperty]
+        protected bool _isErrorOpened;
+
+        #endregion
+
+
+
+        #region CONSTRUCTORS
+
+        public SubscriptionsViewModel(ISearchService searchService, IStringResourcesService stringResourcesService, ISubscriptionsDataService subscriptionsDataService)
+        {
+            _searchService = searchService;
+            _stringResourcesService = stringResourcesService;
+            _subscriptionsDataService = subscriptionsDataService;
+
+            _playlists = new ObservableCollection<PlaylistViewModel>();
+            _loading = false;
+            _isErrorOpened = true;
+            _error = null;
+        }
+
+        #endregion
+
+
+
+        #region COMMANDS
+
+        [RelayCommand]
+        public void Navigation()
+        {
+            Playlists.Clear();
+            foreach (Subscription sub in _subscriptionsDataService.Data)
+            {
+                Playlists.Add(new PlaylistViewModel(sub.Name, sub.Source, sub.Guid));
+            }
+        }
+
+        [RelayCommand]
+        public async Task RemovePlaylist(PlaylistViewModel playlist)
+        {
+            Playlists.Remove(playlist);
+
+            Subscription sub = _subscriptionsDataService.Data.FirstOrDefault(x => x.Guid == playlist.Guid);
+            _subscriptionsDataService.Data.Remove(sub);
+            await _subscriptionsDataService.Save();
+        }
+
+        [RelayCommand]
+        public async Task Add()
+        {
+            Loading = true;
+
+            Playlist playlist;
+            try
+            {
+                playlist = await _searchService.SearchPlaylist(Url, 0);
+            }
+            catch (MediaSearchException ex)
+            {
+                Error = _stringResourcesService.SearchResources.Get(ex.StringCode);
+                Loading = false;
+                return;
+            }
+
+
+            if (_subscriptionsDataService.Data.Any(x => x.Source == playlist.Source && x.Name == playlist.Name))
+            {
+                Error = _stringResourcesService.SubscriptionsViewResources.Get("DuplicateError");
+                Loading = false;
+                return;
+            }
+
+            Subscription subscription = new Subscription
+            {
+                Name = playlist.Name,
+                Source = playlist.Source,
+                Url = playlist.Url,
+            };
+            playlist.ForEach(x => subscription.VideoIds.Add(x.Id));
+
+            _subscriptionsDataService.Data.Add(subscription);
+            await _subscriptionsDataService.Save();
+            Playlists.Add(new PlaylistViewModel(subscription.Name, subscription.Source, subscription.Guid));
+
+            Loading = false;
+        }
+
+        [RelayCommand]
+        public void CloseError()
+        {
+            Error = null;
+            IsErrorOpened = true;
+        }
+
+        #endregion 
     }
 }
diff --git a/VDownload.Core/VDownload.Core.Views/Subscriptions/SubscriptionsView.xaml b/VDownload.Core/VDownload.Core.Views/Subscriptions/SubscriptionsView.xaml
index 386316e..2827059 100644
--- a/VDownload.Core/VDownload.Core.Views/Subscriptions/SubscriptionsView.xaml
+++ b/VDownload.Core/VDownload.Core.Views/Subscriptions/SubscriptionsView.xaml
@@ -6,10 +6,109 @@
     xmlns:local="using:VDownload.Core.Views.Subscriptions"
     xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
     xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+    xmlns:ctuc="using:CommunityToolkit.WinUI.UI.Controls"
+    xmlns:ctc="using:CommunityToolkit.WinUI.Controls"
+    xmlns:ct="using:CommunityToolkit.WinUI"
+    xmlns:i="using:Microsoft.Xaml.Interactivity" 
+    xmlns:ic="using:Microsoft.Xaml.Interactions.Core"
     mc:Ignorable="d"
-    Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
+    Background="{ThemeResource ViewBackgroundColor}"
+    x:Name="Root">
+    <i:Interaction.Behaviors>
+        <ic:EventTriggerBehavior EventName="Loaded">
+            <ic:InvokeCommandAction Command="{Binding NavigationCommand}"/>
+        </ic:EventTriggerBehavior>
+    </i:Interaction.Behaviors>
 
-    <Grid>
-        <TextBlock Text="AAAAAAAAAA"/>
+    <Grid Padding="20"
+          RowSpacing="20">
+        <Grid.RowDefinitions>
+            <RowDefinition Height="Auto"/>
+            <RowDefinition/>
+            <RowDefinition Height="Auto"/>
+        </Grid.RowDefinitions>
+        <TextBlock x:Uid="/VDownload.Core.Strings/SubscriptionsViewResources/Header"
+                   Grid.Row="0"
+                   FontSize="28"
+                   FontWeight="SemiBold"/>
+        <ScrollViewer Grid.Row="1">
+            <ItemsControl ItemsSource="{Binding Playlists}">
+                <ItemsControl.ItemsPanel>
+                    <ItemsPanelTemplate>
+                        <ctuc:StaggeredPanel ColumnSpacing="10"
+                                             DesiredColumnWidth="120"
+                                             RowSpacing="10"/>
+                    </ItemsPanelTemplate>
+                </ItemsControl.ItemsPanel>
+                <ItemsControl.ItemTemplate>
+                    <DataTemplate>
+                        <Grid RowSpacing="10"
+                              Padding="10"
+                              Background="{ThemeResource PanelBackgroundColor}"
+                              CornerRadius="10">
+                            <Grid.RowDefinitions>
+                                <RowDefinition/>
+                                <RowDefinition Height="Auto"/>
+                                <RowDefinition Height="Auto"/>
+                            </Grid.RowDefinitions>
+                            <Image Grid.Row="0">
+                                <i:Interaction.Behaviors>
+                                    <ic:DataTriggerBehavior Binding="{Binding Source, Converter={StaticResource ObjectToStringConverter}}"
+                                                            Value="Twitch">
+                                        <ic:ChangePropertyAction PropertyName="Source"
+                                                                 Value="{StaticResource ImageSourcesTwitch}"/>
+                                    </ic:DataTriggerBehavior>
+                                </i:Interaction.Behaviors>
+                            </Image>
+                            <TextBlock Grid.Row="1" 
+                                       Text="{Binding Name}"
+                                       HorizontalAlignment="Center"/>
+                            <HyperlinkButton x:Uid="/VDownload.Core.Strings/SubscriptionsViewResources/RemovePlaylistButton"
+                                             Grid.Row="2"
+                                             Content="Remove"
+                                             HorizontalAlignment="Center"
+                                             Command="{Binding DataContext.RemovePlaylistCommand, ElementName=Root}"
+                                             CommandParameter="{Binding}"/>
+                        </Grid>
+                    </DataTemplate>
+                </ItemsControl.ItemTemplate>
+            </ItemsControl>
+        </ScrollViewer>
+        <ctuc:SwitchPresenter Grid.Row="2"
+                              Value="{Binding Error, Converter={StaticResource IsNotNullConverter}}">
+            <ctuc:Case Value="False">
+                <Grid Background="{ThemeResource PanelBackgroundColor}"
+                      Padding="10"
+                      ColumnSpacing="10"
+                      CornerRadius="10">
+                    <Grid.ColumnDefinitions>
+                        <ColumnDefinition/>
+                        <ColumnDefinition Width="Auto"/>
+                    </Grid.ColumnDefinitions>
+                    <TextBox x:Uid="/VDownload.Core.Strings/SubscriptionsViewResources/PlaylistUrlTextBox"
+                             Grid.Column="0"
+                             Text="{Binding Url, Mode=TwoWay}"/>
+                    <ctuc:SwitchPresenter Grid.Column="1"
+                                          Value="{Binding Loading, Converter={StaticResource ObjectToStringConverter}}">
+                        <ctuc:Case Value="True">
+                            <ProgressRing IsIndeterminate="True"
+                                          Width="20"
+                                          Height="20"/>
+                        </ctuc:Case>
+                        <ctuc:Case Value="False">
+                            <Button x:Uid="/VDownload.Core.Strings/SubscriptionsViewResources/PlaylistSearchButton"
+                                    Command="{Binding AddCommand}"/>
+                        </ctuc:Case>
+                    </ctuc:SwitchPresenter>
+                </Grid>
+            </ctuc:Case>
+            <ctuc:Case Value="True">
+                <InfoBar x:Uid="/VDownload.Core.Strings/SubscriptionsViewResources/ErrorInfoBar"
+                         Severity="Error"
+                         IsOpen="{Binding IsErrorOpened, Mode=TwoWay}"
+                         Message="{Binding Error}"
+                         CloseButtonCommand="{Binding CloseErrorCommand}"/>
+            </ctuc:Case>
+        </ctuc:SwitchPresenter>
     </Grid>
 </Page>
diff --git a/VDownload.Models/Playlist.cs b/VDownload.Models/Playlist.cs
index 7e202d1..d176dd0 100644
--- a/VDownload.Models/Playlist.cs
+++ b/VDownload.Models/Playlist.cs
@@ -12,6 +12,7 @@ namespace VDownload.Models
 
         public required string Description { get; set; }
         public required Uri Url { get; set; }
+        public Source Source { get; protected set; }
 
         #endregion
     }
diff --git a/VDownload.Models/Source.cs b/VDownload.Models/Source.cs
index 8862d31..4bc4528 100644
--- a/VDownload.Models/Source.cs
+++ b/VDownload.Models/Source.cs
@@ -8,7 +8,6 @@ namespace VDownload.Models
 {
     public enum Source
     {
-        Twitch,
-        Subscriptions
+        Twitch
     }
 }
diff --git a/VDownload.Models/SubscriptionList.cs b/VDownload.Models/SubscriptionList.cs
deleted file mode 100644
index 3d406a5..0000000
--- a/VDownload.Models/SubscriptionList.cs
+++ /dev/null
@@ -1,20 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-
-namespace VDownload.Models
-{
-    public class SubscriptionList : VideoCollection
-    {
-        #region CONSTRUCTORS
-
-        public SubscriptionList()
-        {
-            Source = Source.Subscriptions;
-        }
-
-        #endregion
-    }
-}
diff --git a/VDownload.Models/SubscriptionsVideoList.cs b/VDownload.Models/SubscriptionsVideoList.cs
new file mode 100644
index 0000000..4030f75
--- /dev/null
+++ b/VDownload.Models/SubscriptionsVideoList.cs
@@ -0,0 +1,12 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace VDownload.Models
+{
+    public class SubscriptionsVideoList : VideoCollection
+    {
+    }
+}
diff --git a/VDownload.Models/VideoCollection.cs b/VDownload.Models/VideoCollection.cs
index ba95a92..221314f 100644
--- a/VDownload.Models/VideoCollection.cs
+++ b/VDownload.Models/VideoCollection.cs
@@ -11,7 +11,6 @@ namespace VDownload.Models
         #region PROPERTIES
 
         public required string Name { get; init; }
-        public Source Source { get; protected set; }
 
         #endregion
     }
diff --git a/VDownload.Services/VDownload.Services.Data/VDownload.Services.Data.Subscriptions/Subscription.cs b/VDownload.Services/VDownload.Services.Data/VDownload.Services.Data.Subscriptions/Subscription.cs
new file mode 100644
index 0000000..b4516a9
--- /dev/null
+++ b/VDownload.Services/VDownload.Services.Data/VDownload.Services.Data.Subscriptions/Subscription.cs
@@ -0,0 +1,32 @@
+using Newtonsoft.Json;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using VDownload.Models;
+
+namespace VDownload.Services.Data.Subscriptions
+{
+    public class Subscription
+    {
+        #region PROPERTIES
+
+        [JsonProperty("guid")]
+        public Guid Guid { get; private set; } = Guid.NewGuid();
+
+        [JsonProperty("name")]
+        public string Name { get; set; }
+
+        [JsonProperty("source")]
+        public Source Source { get; set; }
+
+        [JsonProperty("url")]
+        public Uri Url { get; set; }
+
+        [JsonProperty("video_ids")]
+        public ICollection<string> VideoIds { get; private set; } = new List<string>();
+
+        #endregion
+    }
+}
diff --git a/VDownload.Services/VDownload.Services.Data/VDownload.Services.Data.Subscriptions/SubscriptionsDataService.cs b/VDownload.Services/VDownload.Services.Data/VDownload.Services.Data.Subscriptions/SubscriptionsDataService.cs
index d689c21..4caee21 100644
--- a/VDownload.Services/VDownload.Services.Data/VDownload.Services.Data.Subscriptions/SubscriptionsDataService.cs
+++ b/VDownload.Services/VDownload.Services.Data/VDownload.Services.Data.Subscriptions/SubscriptionsDataService.cs
@@ -1,12 +1,97 @@
-using System;
+using Newtonsoft.Json;
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
+using VDownload.Services.Data.Configuration;
 
 namespace VDownload.Services.Data.Subscriptions
 {
-    public class SubscriptionsDataService
+    public interface ISubscriptionsDataService
     {
+        #region PROPERTIES
+
+        ICollection<Subscription> Data { get; }
+
+        #endregion
+
+
+
+        #region METHODS
+
+        Task Load();
+        Task Save();
+
+        #endregion
+    }
+
+
+
+    public class SubscriptionsDataService : ISubscriptionsDataService
+    {
+        #region SERVICES
+
+        protected readonly IConfigurationService _configurationService;
+
+        #endregion
+
+
+
+        #region FIELDS
+
+        protected readonly string _filePath;
+
+        #endregion
+
+
+
+        #region PROPERTIES
+
+        public ICollection<Subscription> Data { get; private set; }
+
+        #endregion
+
+
+
+        #region CONSTRUCTORS
+
+        public SubscriptionsDataService(IConfigurationService configurationService)
+        {
+            _configurationService = configurationService;
+
+            string appdataPath = Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData);
+            string appdataDirectoryName = _configurationService.Common.Path.Appdata.DirectoryName;
+            string appdataAuthenticationFilename = _configurationService.Common.Path.Appdata.SubscriptionsFile;
+            _filePath = Path.Combine(appdataPath, appdataDirectoryName, appdataAuthenticationFilename);
+        }
+
+        #endregion
+
+
+
+        #region PUBLIC METHODS
+
+        public async Task Load()
+        {
+            if (File.Exists(_filePath))
+            {
+                string content = await File.ReadAllTextAsync(_filePath);
+                Data = JsonConvert.DeserializeObject<ICollection<Subscription>>(content);
+            }
+            else
+            {
+                Data = new List<Subscription>();
+            }
+        }
+
+        public async Task Save()
+        {
+            Directory.CreateDirectory(Path.GetDirectoryName(_filePath));
+            string content = JsonConvert.SerializeObject(Data);
+            await File.WriteAllTextAsync(_filePath, content);
+        }
+
+        #endregion
     }
 }
diff --git a/VDownload.Services/VDownload.Services.Data/VDownload.Services.Data.Subscriptions/VDownload.Services.Data.Subscriptions.csproj b/VDownload.Services/VDownload.Services.Data/VDownload.Services.Data.Subscriptions/VDownload.Services.Data.Subscriptions.csproj
index fa71b7a..d81009e 100644
--- a/VDownload.Services/VDownload.Services.Data/VDownload.Services.Data.Subscriptions/VDownload.Services.Data.Subscriptions.csproj
+++ b/VDownload.Services/VDownload.Services.Data/VDownload.Services.Data.Subscriptions/VDownload.Services.Data.Subscriptions.csproj
@@ -6,4 +6,13 @@
     <Nullable>enable</Nullable>
   </PropertyGroup>
 
+  <ItemGroup>
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\..\..\VDownload.Models\VDownload.Models.csproj" />
+    <ProjectReference Include="..\VDownload.Services.Data.Configuration\VDownload.Services.Data.Configuration.csproj" />
+  </ItemGroup>
+
 </Project>
diff --git a/VDownload.Sources/VDownload.Sources/VDownload.Sources.csproj b/VDownload.Sources/VDownload.Sources/VDownload.Sources.csproj
index fdec61e..c27e6e9 100644
--- a/VDownload.Sources/VDownload.Sources/VDownload.Sources.csproj
+++ b/VDownload.Sources/VDownload.Sources/VDownload.Sources.csproj
@@ -8,6 +8,7 @@
 
   <ItemGroup>
     <ProjectReference Include="..\..\VDownload.Services\VDownload.Services.Data\VDownload.Services.Data.Configuration\VDownload.Services.Data.Configuration.csproj" />
+    <ProjectReference Include="..\..\VDownload.Services\VDownload.Services.Data\VDownload.Services.Data.Subscriptions\VDownload.Services.Data.Subscriptions.csproj" />
     <ProjectReference Include="..\VDownload.Sources.Common\VDownload.Sources.Common.csproj" />
     <ProjectReference Include="..\VDownload.Sources.Twitch\VDownload.Sources.Twitch\VDownload.Sources.Twitch.csproj" />
   </ItemGroup>
diff --git a/VDownload/App.xaml.cs b/VDownload/App.xaml.cs
index a91d01c..af9ab08 100644
--- a/VDownload/App.xaml.cs
+++ b/VDownload/App.xaml.cs
@@ -23,6 +23,7 @@ using VDownload.Services.Data.Authentication;
 using VDownload.Services.Data.Configuration;
 using VDownload.Services.Data.Configuration.Models;
 using VDownload.Services.Data.Settings;
+using VDownload.Services.Data.Subscriptions;
 using VDownload.Services.UI.Dialogs;
 using VDownload.Services.UI.DictionaryResources;
 using VDownload.Services.UI.Notifications;
@@ -110,6 +111,7 @@ namespace VDownload
             services.AddSingleton<IAuthenticationDataService, AuthenticationDataService>();
             services.AddSingleton<ISettingsService, SettingsService>();
             services.AddSingleton<IApplicationDataService, ApplicationDataService>();
+            services.AddSingleton<ISubscriptionsDataService, SubscriptionsDataService>();
         }
 
         protected void BuildUIServices(IServiceCollection services)
@@ -189,7 +191,8 @@ namespace VDownload
             IApplicationDataService applicationDataService = _serviceProvider.GetService<IApplicationDataService>();
             ISettingsService settingsService = _serviceProvider.GetService<ISettingsService>();
             IAuthenticationDataService authenticationDataService = _serviceProvider.GetService<IAuthenticationDataService>();
-            await Task.WhenAll(applicationDataService.Load(), settingsService.Load(), authenticationDataService.Load());
+            ISubscriptionsDataService subscriptionsDataService = _serviceProvider.GetService<ISubscriptionsDataService>();
+            await Task.WhenAll(applicationDataService.Load(), settingsService.Load(), authenticationDataService.Load(), subscriptionsDataService.Load());
         }
 
         protected void AssignStaticProperties()
diff --git a/VDownload/Dictionaries/Colors.xaml b/VDownload/Dictionaries/Colors.xaml
index 077847a..65a6043 100644
--- a/VDownload/Dictionaries/Colors.xaml
+++ b/VDownload/Dictionaries/Colors.xaml
@@ -6,10 +6,12 @@
     <ResourceDictionary.ThemeDictionaries>
         <ResourceDictionary x:Key="Light">
             <SolidColorBrush x:Key="ViewBackgroundColor" Color="#F5F5F5"/>
+            <SolidColorBrush x:Key="PanelBackgroundColor" Color="#F5F5F5"/>
             <SolidColorBrush x:Key="OptionBarBackgroundColor" Color="#F5F5F5"/>
         </ResourceDictionary>
         <ResourceDictionary x:Key="Dark">
             <SolidColorBrush x:Key="ViewBackgroundColor" Color="#242424"/>
+            <SolidColorBrush x:Key="PanelBackgroundColor" Color="#2F2F2F"/>
             <SolidColorBrush x:Key="OptionBarBackgroundColor" Color="#1B1B1B"/>
         </ResourceDictionary>
     </ResourceDictionary.ThemeDictionaries>
diff --git a/VDownload/Dictionaries/Converters.xaml b/VDownload/Dictionaries/Converters.xaml
index f9324ce..350aef3 100644
--- a/VDownload/Dictionaries/Converters.xaml
+++ b/VDownload/Dictionaries/Converters.xaml
@@ -13,4 +13,7 @@
     <ct:StringFormatConverter x:Key="StringFormatConverter"/>
     <ct:BoolToVisibilityConverter x:Key="BoolToVisibilityConverter"/>
     <ct:BoolNegationConverter x:Key="BoolNegationConverter"/>
+    <ct:EmptyObjectToObjectConverter x:Key="IsNotNullConverter"
+                                     EmptyValue="False"
+                                     NotEmptyValue="True"/>
 </ResourceDictionary>
diff --git a/VDownload/VDownload.csproj b/VDownload/VDownload.csproj
index d6cbda5..31c3e2f 100644
--- a/VDownload/VDownload.csproj
+++ b/VDownload/VDownload.csproj
@@ -192,6 +192,7 @@
         <ProjectReference Include="..\VDownload.Services\VDownload.Services.Data\VDownload.Services.Data.Authentication\VDownload.Services.Data.Authentication.csproj" />
         <ProjectReference Include="..\VDownload.Services\VDownload.Services.Data\VDownload.Services.Data.Configuration\VDownload.Services.Data.Configuration.csproj" />
         <ProjectReference Include="..\VDownload.Services\VDownload.Services.Data\VDownload.Services.Data.Settings\VDownload.Services.Data.Settings.csproj" />
+        <ProjectReference Include="..\VDownload.Services\VDownload.Services.Data\VDownload.Services.Data.Subscriptions\VDownload.Services.Data.Subscriptions.csproj" />
         <ProjectReference Include="..\VDownload.Services\VDownload.Services.UI\VDownload.Services.UI.Dialogs\VDownload.Services.UI.Dialogs.csproj" />
         <ProjectReference Include="..\VDownload.Services\VDownload.Services.UI\VDownload.Services.UI.DictionaryResources\VDownload.Services.UI.DictionaryResources.csproj" />
         <ProjectReference Include="..\VDownload.Services\VDownload.Services.UI\VDownload.Services.UI.Notifications\VDownload.Services.UI.Notifications.csproj" />