Lots of performance optimization; Added category to RaidButton; Added AboutWindow

BetterRaid.generated.sln

@@ -3,7 +3,7 @@ Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio Version 17
 VisualStudioVersion = 17.5.002.0
 MinimumVisualStudioVersion = 10.0.40219.1
-Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "BetterRaid", "BetterRaid.csproj", "{5F90F02B-A28E-4B50-9821-1F0D7226936C}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "BetterRaid", "BetterRaid.csproj", "{6BE742A5-079D-4617-BDC1-2933274CDCB7}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -11,10 +11,10 @@ Global
 		Release|Any CPU = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(ProjectConfigurationPlatforms) = postSolution
-		{5F90F02B-A28E-4B50-9821-1F0D7226936C}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{6BE742A5-079D-4617-BDC1-2933274CDCB7}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{5F90F02B-A28E-4B50-9821-1F0D7226936C}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{6BE742A5-079D-4617-BDC1-2933274CDCB7}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{5F90F02B-A28E-4B50-9821-1F0D7226936C}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{6BE742A5-079D-4617-BDC1-2933274CDCB7}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{5F90F02B-A28E-4B50-9821-1F0D7226936C}.Release|Any CPU.Build.0 = Release|Any CPU
+		{6BE742A5-079D-4617-BDC1-2933274CDCB7}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

Controls/RaidButton.axaml

@@ -57,14 +57,17 @@
                   Orientation="Vertical">
         <Label HorizontalAlignment="Stretch"
                HorizontalContentAlignment="Center"
-               Content="{Binding Channel.DisplayName}" />
+               Content="{Binding Channel.DisplayName, FallbackValue=...}" />
+        <Label HorizontalAlignment="Stretch"
+               HorizontalContentAlignment="Center"
+               Content="{Binding Channel.Category, TargetNullValue=-, FallbackValue=...}" />
         <Label HorizontalAlignment="Stretch"
                HorizontalContentAlignment="Center"
                Foreground="{Binding ViewerCountColor}"
-               Content="{Binding Channel.ViewerCount}" />
+               Content="{Binding Channel.ViewerCount, TargetNullValue=(Offline), FallbackValue=...}" />
         <Label HorizontalAlignment="Stretch"
                HorizontalContentAlignment="Center"
-               Content="{Binding LastRaided, TargetNullValue=Never Raided}" />
+               Content="{Binding LastRaided, TargetNullValue=Never Raided, FallbackValue=...}" />
       </StackPanel>
 
     </Grid>

Extensions/WindowExtensions.cs

@@ -0,0 +1,19 @@
+using Avalonia.Controls;
+
+namespace BetterRaid.Extensions;
+
+public static class WindowExtensions
+{
+    public static void CenterToOwner(this Window window)
+    {
+        var owner = window.Owner as Window;
+
+        if (owner == null)
+            return;
+
+        window.Position = new Avalonia.PixelPoint(
+            (int)(owner.Position.X + owner.Width / 2 - window.Width / 2),
+            (int)(owner.Position.Y + owner.Height / 2 - window.Height / 2)
+        );
+    }
+}

Models/TwitchChannel.cs

@@ -6,11 +6,12 @@ namespace BetterRaid.Models;
 
 public class TwitchChannel : INotifyPropertyChanged
 {
-    private string? viewerCount;
+    private string? _viewerCount;
-    private bool isLive;
+    private bool _isLive;
-    private string? name;
+    private string? _name;
-    private string? displayName;
+    private string? _displayName;
-    private string? thumbnailUrl;
+    private string? _thumbnailUrl;
+    private string? _category;
 
     public string? BroadcasterId
     {
@@ -19,63 +20,76 @@ public class TwitchChannel : INotifyPropertyChanged
     }
     public string? Name
     {
-        get => name;
+        get => _name;
         set
         {
-            if (value == name)
+            if (value == _name)
                 return;
 
-            name = value;
+            _name = value;
             OnPropertyChanged();
         }
     }
     public bool IsLive
     {
-        get => isLive;
+        get => _isLive;
         set
         {
-            if (value == isLive)
+            if (value == _isLive)
                 return;
 
-            isLive = value;
+            _isLive = value;
             OnPropertyChanged();
         }
     }
     public string? ViewerCount
     {
-        get => viewerCount;
+        get => _viewerCount;
         set
         {
-            if (value == viewerCount)
+            if (value == _viewerCount)
                 return;
 
-            viewerCount = value;
+            _viewerCount = value;
             OnPropertyChanged();
         }
     }
 
     public string? ThumbnailUrl
     {
-        get => thumbnailUrl;
+        get => _thumbnailUrl;
         set
         {
-            if (value == thumbnailUrl)
+            if (value == _thumbnailUrl)
                 return;
 
-            thumbnailUrl = value;
+            _thumbnailUrl = value;
             OnPropertyChanged();
         }
     }
 
     public string? DisplayName
     {
-        get => displayName;
+        get => _displayName;
         set
         {
-            if (value == displayName)
+            if (value == _displayName)
                 return;
             
-            displayName = value;
+            _displayName = value;
+            OnPropertyChanged();
+        }
+    }
+
+    public string? Category
+    {
+        get => _category;
+        set
+        {
+            if (value == _category)
+                return;
+            
+            _category = value;
             OnPropertyChanged();
         }
     }

ViewModels/MainWindowViewModel.cs

@@ -1,6 +1,9 @@
 using System;
 using Avalonia;
+using Avalonia.Controls;
+using BetterRaid.Extensions;
 using BetterRaid.Models;
+using BetterRaid.Views;
 
 namespace BetterRaid.ViewModels;
 
@@ -27,4 +30,11 @@ public partial class MainWindowViewModel : ViewModelBase
         //TODO polish later
         Environment.Exit(0);
     }
+
+    public void ShowAboutWindow(Window owner)
+    {
+        var about = new AboutWindow();
+        about.ShowDialog(owner);
+        about.CenterToOwner();
+    }
 }

ViewModels/RaidButtonViewModel.cs

@@ -3,6 +3,7 @@ using System.ComponentModel;
 using System.Linq;
 using System.Threading.Tasks;
 using Avalonia.Media;
+using Avalonia.Threading;
 using BetterRaid.Models;
 using TwitchLib.Api.Helix.Models.Raids.StartRaid;
 using TwitchLib.Api.Helix.Models.Search;
@@ -15,13 +16,13 @@ public class RaidButtonViewModel : ViewModelBase
     private TwitchChannel? _channel;
     private SolidColorBrush _viewerCountColor = new SolidColorBrush(Color.FromRgb(byte.MaxValue, byte.MaxValue, byte.MaxValue));
 
-    public required string ChannelName
+    public string ChannelName
     {
         get;
         set;
     }
 
-    public TwitchChannel Channel => _channel ?? new TwitchChannel(ChannelName);
+    public TwitchChannel? Channel => _channel ?? new TwitchChannel(ChannelName);
 
     public SolidColorBrush ViewerCountColor
     {
@@ -33,13 +34,14 @@ public class RaidButtonViewModel : ViewModelBase
 
     public DateTime? LastRaided => MainVm?.Database?.GetLastRaided(ChannelName);
 
+    public RaidButtonViewModel(string channelName)
+    {
+        ChannelName = channelName;
+    }
+
     public async Task<bool> GetOrUpdateChannelAsync()
     {
-        if (_channel == null)
+        Console.WriteLine("[DEBUG] Updating channel '{0}' ...", ChannelName);
-        {
-            _channel = new TwitchChannel(ChannelName);
-            _channel.PropertyChanged += OnChannelDataChanged;
-        }
 
         var currentChannelData = await GetChannelAsync(ChannelName);
 
@@ -48,24 +50,42 @@ public class RaidButtonViewModel : ViewModelBase
 
         var currentStreamData = await GetStreamAsync(currentChannelData);
 
-        _channel.BroadcasterId = currentChannelData.Id;
+        var swapChannel = new TwitchChannel(ChannelName)
-        _channel.Name = ChannelName;
+        {
-        _channel.DisplayName = currentChannelData.DisplayName;
+            BroadcasterId = currentChannelData.Id,
-        _channel.IsLive = currentChannelData.IsLive;
+            Name = ChannelName,
-        _channel.ThumbnailUrl = currentChannelData.ThumbnailUrl;
+            DisplayName = currentChannelData.DisplayName,
-        _channel.ViewerCount = currentStreamData?.ViewerCount == null
+            IsLive = currentChannelData.IsLive,
+            ThumbnailUrl = currentChannelData.ThumbnailUrl,
+            ViewerCount = currentStreamData?.ViewerCount == null
                              ? "(Offline)"
-                             : $"{currentStreamData?.ViewerCount} Viewers";
+                             : $"{currentStreamData?.ViewerCount} Viewers",
+            Category = currentStreamData?.GameName
+        };
 
-        if (_channel.IsLive)
+        if (_channel != null)
         {
-            ViewerCountColor = new SolidColorBrush(Color.FromRgb(0, byte.MaxValue, 0));
+            _channel.PropertyChanged -= OnChannelDataChanged;
         }
-        else
+
+        Dispatcher.UIThread.Invoke(() => {
+            ViewerCountColor = new SolidColorBrush(Color.FromRgb(
+                r: swapChannel.IsLive ? (byte) 0      : byte.MaxValue,
+                g: swapChannel.IsLive ? byte.MaxValue : (byte) 0,
+                b: 0)
+            );
+
+            _channel = swapChannel;
+            OnPropertyChanged(nameof(Channel));
+        });
+
+        if (_channel != null)
         {
-            ViewerCountColor = new SolidColorBrush(Color.FromRgb(byte.MaxValue, 0, 0));
+            _channel.PropertyChanged += OnChannelDataChanged;
         }
 
+        Console.WriteLine("[DEBUG] DONE Updating channel '{0}'", ChannelName);
+
         return true;
     }
 
@@ -102,6 +122,9 @@ public class RaidButtonViewModel : ViewModelBase
         if (App.TwitchAPI == null)
             return;
         
+        if (Channel == null)
+            return;
+        
         StartRaidResponse? raid = null;
 
         try

Views/AboutWindow.axaml

@@ -0,0 +1,57 @@
+<Window xmlns="https://github.com/avaloniaui"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
+        x:Class="BetterRaid.Views.AboutWindow"
+        Title="About"
+        MaxWidth="300"
+        MinWidth="300"
+        Height="200"
+        Background="DarkSlateGray">
+
+  <ScrollViewer>
+    <StackPanel Orientation="Vertical">
+
+      <Label HorizontalAlignment="Stretch"
+            HorizontalContentAlignment="Center"
+            Content="About BetterRaid"
+            Margin="0, 10, 0, -10"
+            FontSize="28"
+            FontWeight="ExtraLight" />
+
+      <Label HorizontalAlignment="Stretch"
+            HorizontalContentAlignment="Center"
+            Content="v0.0.1"
+            Margin="0"
+            FontSize="12"
+            FontWeight="Light" />
+
+      <Separator Margin="0, 5, 0, 5" />
+
+      <TextBlock HorizontalAlignment="Left"
+                Text="Programming"
+                FontSize="14"
+                Margin="5, 5, 0, 5"
+                TextDecorations="Underline" />
+      
+      <TextBlock HorizontalAlignment="Left"
+                Text="- Enrico Ludwig &lt;hi@zion-networks.de&gt;"
+                FontSize="12"
+                Margin="15, 0, 0, 0" />
+
+      <TextBlock HorizontalAlignment="Left"
+                Text="Graphics"
+                FontSize="14"
+                Margin="5, 5, 0, 5"
+                TextDecorations="Underline" />
+      
+      <TextBlock HorizontalAlignment="Left"
+                Text="- UNKNOWN ARTIST"
+                FontSize="12"
+                Margin="15, 0, 0, 0" />
+      
+    </StackPanel>
+  </ScrollViewer>
+
+</Window>

Views/AboutWindow.axaml.cs

@@ -0,0 +1,13 @@
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Markup.Xaml;
+
+namespace BetterRaid.Views;
+
+public partial class AboutWindow : Window
+{
+    public AboutWindow()
+    {
+        InitializeComponent();
+    }
+}

Views/MainWindow.axaml

@@ -10,8 +10,7 @@
         x:DataType="vm:MainWindowViewModel"
         Icon="/Assets/avalonia-logo.ico"
         Title="BetterRaid"
-        Background="DarkSlateGray"
+        Background="DarkSlateGray">
-        WindowStartupLocation="CenterScreen">
 
     <Design.DataContext>
         <vm:MainWindowViewModel/>
@@ -35,7 +34,12 @@
               Grid.Row="0">
 
             <MenuItem Header="File">
-                <MenuItem Header="Exit" Command="{Binding ExitApplication}" />
+                <MenuItem Header="About"
+                          CommandParameter="{Binding $parent[Window]}"
+                          Command="{Binding ShowAboutWindow}" />
+                <Separator />
+                <MenuItem Header="Exit"
+                          Command="{Binding ExitApplication}" />
             </MenuItem>
         </Menu>
         

Views/MainWindow.axaml.cs

@@ -6,6 +6,7 @@ using System.Threading.Tasks;
 using Avalonia.Controls;
 using Avalonia.Interactivity;
 using Avalonia.Threading;
+using BetterRaid.Extensions;
 using BetterRaid.Models;
 using BetterRaid.ViewModels;
 
@@ -25,13 +26,14 @@ public partial class MainWindow : Window
 
         InitializeComponent();
 
+        _autoUpdater.WorkerSupportsCancellation = true;
         _autoUpdater.DoWork += UpdateAllTiles;
-        _autoUpdater.RunWorkerAsync();
     }
 
     private void OnDatabaseChanged(object? sender, PropertyChangedEventArgs e)
     {
-        InitializeRaidChannels();
+        // TODO: Only if new channel was added or existing were removed
+        // InitializeRaidChannels();
         GenerateRaidGrid();
     }
 
@@ -60,9 +62,14 @@ public partial class MainWindow : Window
 
     private void InitializeRaidChannels()
     {
+        if (_autoUpdater?.IsBusy == false)
+        {
+            _autoUpdater?.CancelAsync();
+        }
+
         foreach (var rbvm in _raidButtonVMs)
         {
-            rbvm.PropertyChanged -= OnChannelDataChanged;
+            rbvm.PropertyChanged -= OnRaidButtonViewModelChanged;
         }
 
         _raidButtonVMs.Clear();
@@ -77,26 +84,25 @@ public partial class MainWindow : Window
             if (string.IsNullOrEmpty(channel))
                 continue;
 
-            var rbvm = new RaidButtonViewModel
+            var rbvm = new RaidButtonViewModel(channel)
             {
-                ChannelName = channel,
                 MainVm = vm
             };
 
-            rbvm.PropertyChanged += OnChannelDataChanged;
+            rbvm.PropertyChanged += OnRaidButtonViewModelChanged;
 
             _raidButtonVMs.Add(rbvm);
         }
 
-        UpdateChannelData();
+        if (_autoUpdater?.IsBusy == false)
+        {
+            _autoUpdater?.RunWorkerAsync();
+        }
     }
 
-    private void OnChannelDataChanged(object? sender, PropertyChangedEventArgs e)
+    private void OnRaidButtonViewModelChanged(object? sender, PropertyChangedEventArgs e)
     {
-        if (e.PropertyName == nameof(RaidButtonViewModel.Channel))
+        
-        {
-            GenerateRaidGrid();
-        }
     }
 
     private void GenerateRaidGrid()
@@ -129,13 +135,15 @@ public partial class MainWindow : Window
                 }
             }
 
-            if (vm.Database.OnlyOnline && channel.Channel.IsLive == false)
+            if (vm.Database.OnlyOnline && channel.Channel?.IsLive == false)
             {
                 visible = false;
             }
 
             return visible;
-        }).ToList();
+        }).OrderByDescending(c => c.Channel?.IsLive).ToList();
+
+
         var rows = (int)Math.Ceiling((visibleChannels.Count + 1) / 3.0);
 
         for (var i = 0; i < rows; i++)
@@ -163,11 +171,6 @@ public partial class MainWindow : Window
                 colIndex = 0;
                 rowIndex++;
             }
-
-            if (btn.DataContext is RaidButtonViewModel rbvm)
-            {
-                Dispatcher.UIThread.InvokeAsync(rbvm.GetOrUpdateChannelAsync);
-            }
         }
 
         var addButton = new Button
@@ -193,10 +196,7 @@ public partial class MainWindow : Window
     private void OnAddChannelButtonClicked(object? sender, RoutedEventArgs e)
     {
         var dialog = new AddChannelWindow();
-        dialog.Position = new Avalonia.PixelPoint(
+        dialog.CenterToOwner();
-            (int)(Position.X + Width / 2 - dialog.Width / 2),
-            (int)(Position.Y + Height / 2 - dialog.Height / 2)
-        );
 
         var vm = DataContext as MainWindowViewModel;
 
@@ -225,11 +225,7 @@ public partial class MainWindow : Window
     {
         foreach (var vm in _raidButtonVMs)
         {
-            Dispatcher.UIThread.InvokeAsync(async () =>
+            Task.Run(vm.GetOrUpdateChannelAsync);
-                {
-                    await vm.GetOrUpdateChannelAsync();
-                }
-            );
         }
     }
 
@@ -237,8 +233,8 @@ public partial class MainWindow : Window
     {
         while (e.Cancel == false)
         {
-            Task.Delay(App.AutoUpdateDelay).Wait();
             UpdateChannelData();
+            Task.Delay(App.AutoUpdateDelay).Wait();
         }
     }
 }

db.json

@@ -1 +1 @@
-{"LastRaided":{"Cedricun":null,"ZanTal":null,"PropzMaster":null,"Artimus83":null,"HyperonsLive":null,"theshroomlife":null,"Robocraft999":null,"sllikson":null,"Aron_dc":null,"AIEsports":null,"TobinatorLP":null,"Lordabgrund":null,"GronkhTV":null},"OnlyOnline":false,"Channels":["Cedricun","ZanTal","PropzMaster","Artimus83","HyperonsLive","theshroomlife","Robocraft999","sllikson","Aron_dc","AIEsports","TobinatorLP","Lordabgrund","GronkhTV"],"AutoSave":true}
+{"LastRaided":{"Cedricun":null,"ZanTal":null,"PropzMaster":null,"Artimus83":null,"HyperonsLive":null,"theshroomlife":null,"Robocraft999":null,"sllikson":null,"Aron_dc":null,"AIEsports":null,"TobinatorLP":null,"Lordabgrund":null,"GronkhTV":null,"Bounty2Cooki":null,"ichdasFaultier":null,"codingPurpurTentakel":null,"DerMorzi":null},"OnlyOnline":false,"Channels":["Cedricun","ZanTal","PropzMaster","Artimus83","HyperonsLive","theshroomlife","Robocraft999","sllikson","Aron_dc","AIEsports","TobinatorLP","Lordabgrund","GronkhTV","Bounty2Cooki","ichdasFaultier","codingPurpurTentakel","DerMorzi"],"AutoSave":true}