Inital Push

LOLRLCG/.idea/.idea.LOLRLCG/.idea/.gitignore

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+# Default ignored files
+/shelf/
+/workspace.xml
+# Rider ignored files
+/.idea.LOLRLCG.iml
+/modules.xml
+/projectSettingsUpdater.xml
+/contentModel.xml
+# Editor-based HTTP Client requests
+/httpRequests/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml

LOLRLCG/App.axaml

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+<Application xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             x:Class="LOLRLCG.App"
+             xmlns:local="using:LOLRLCG"
+             RequestedThemeVariant="Default">
+             <!-- "Default" ThemeVariant follows system theme variant. "Dark" or "Light" are other available options. -->
+
+    <Application.DataTemplates>
+        <local:ViewLocator/>
+    </Application.DataTemplates>
+  
+    <Application.Styles>
+        <FluentTheme />
+    </Application.Styles>
+</Application>

LOLRLCG/App.axaml.cs

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+using Avalonia;
+using Avalonia.Controls.ApplicationLifetimes;
+using Avalonia.Data.Core;
+using Avalonia.Data.Core.Plugins;
+using Avalonia.Markup.Xaml;
+using LOLRLCG.ViewModels;
+using LOLRLCG.Views;
+
+namespace LOLRLCG;
+
+public partial class App : Application
+{
+    public override void Initialize()
+    {
+        AvaloniaXamlLoader.Load(this);
+    }
+
+    public override void OnFrameworkInitializationCompleted()
+    {
+        if (ApplicationLifetime is IClassicDesktopStyleApplicationLifetime desktop)
+        {
+            // Line below is needed to remove Avalonia data validation.
+            // Without this line you will get duplicate validations from both Avalonia and CT
+            BindingPlugins.DataValidators.RemoveAt(0);
+            desktop.MainWindow = new MainWindow
+            {
+                DataContext = new MainWindowViewModel(),
+            };
+        }
+
+        base.OnFrameworkInitializationCompleted();
+    }
+}

LOLRLCG/LOLRLCG.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+    <PropertyGroup>
+        <OutputType>WinExe</OutputType>
+        <TargetFramework>net9.0</TargetFramework>
+        <Nullable>enable</Nullable>
+        <BuiltInComInteropSupport>true</BuiltInComInteropSupport>
+        <ApplicationManifest>app.manifest</ApplicationManifest>
+        <AvaloniaUseCompiledBindingsByDefault>true</AvaloniaUseCompiledBindingsByDefault>
+    </PropertyGroup>
+
+    <ItemGroup>
+        <Folder Include="Models\"/>
+        <AvaloniaResource Include="Assets\**"/>
+    </ItemGroup>
+
+    <ItemGroup>
+        <PackageReference Include="Avalonia" Version="11.1.0"/>
+        <PackageReference Include="Avalonia.Desktop" Version="11.1.0"/>
+        <PackageReference Include="Avalonia.Themes.Fluent" Version="11.1.0"/>
+        <PackageReference Include="Avalonia.Fonts.Inter" Version="11.1.0"/>
+        <!--Condition below is needed to remove Avalonia.Diagnostics package from build output in Release configuration.-->
+        <PackageReference Condition="'$(Configuration)' == 'Debug'" Include="Avalonia.Diagnostics" Version="11.1.0"/>
+        <PackageReference Include="CommunityToolkit.Mvvm" Version="8.2.1"/>
+    </ItemGroup>
+
+    <ItemGroup>
+      <None Remove="Resources\background.png" />
+      <AvaloniaResource Include="Resources\background.png">
+        <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+      </AvaloniaResource>
+    </ItemGroup>
+</Project>

LOLRLCG/LOLRLCG.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "LOLRLCG", "LOLRLCG.csproj", "{59FCC5C4-5827-4EAA-BC9C-2078CC0C6113}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{59FCC5C4-5827-4EAA-BC9C-2078CC0C6113}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{59FCC5C4-5827-4EAA-BC9C-2078CC0C6113}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{59FCC5C4-5827-4EAA-BC9C-2078CC0C6113}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{59FCC5C4-5827-4EAA-BC9C-2078CC0C6113}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+EndGlobal

LOLRLCG/Program.cs

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+using Avalonia;
+using System;
+
+namespace LOLRLCG;
+
+sealed class Program
+{
+    // Initialization code. Don't use any Avalonia, third-party APIs or any
+    // SynchronizationContext-reliant code before AppMain is called: things aren't initialized
+    // yet and stuff might break.
+    [STAThread]
+    public static void Main(string[] args) => BuildAvaloniaApp()
+        .StartWithClassicDesktopLifetime(args);
+
+    // Avalonia configuration, don't remove; also used by visual designer.
+    public static AppBuilder BuildAvaloniaApp()
+        => AppBuilder.Configure<App>()
+            .UsePlatformDetect()
+            .WithInterFont()
+            .LogToTrace();
+}

LOLRLCG/ViewLocator.cs

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+using System;
+using Avalonia.Controls;
+using Avalonia.Controls.Templates;
+using LOLRLCG.ViewModels;
+
+namespace LOLRLCG;
+
+public class ViewLocator : IDataTemplate
+{
+    public Control? Build(object? data)
+    {
+        if (data is null)
+            return null;
+
+        var name = data.GetType().FullName!.Replace("ViewModel", "View", StringComparison.Ordinal);
+        var type = Type.GetType(name);
+
+        if (type != null)
+        {
+            var control = (Control)Activator.CreateInstance(type)!;
+            control.DataContext = data;
+            return control;
+        }
+
+        return new TextBlock { Text = "Not Found: " + name };
+    }
+
+    public bool Match(object? data)
+    {
+        return data is ViewModelBase;
+    }
+}

LOLRLCG/ViewModels/MainWindowViewModel.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Net;
+using System.Net.Http;
+using System.Text.Json;
+using System.Threading.Tasks;
+using Avalonia.Controls;
+using Avalonia.Controls.Shapes;
+using Avalonia.Media.Imaging;
+using Avalonia.Platform;
+using CommunityToolkit.Mvvm.ComponentModel;
+using CommunityToolkit.Mvvm.Input;
+
+namespace LOLRLCG.ViewModels;
+
+public class ChampionWrapper
+{
+    public Dictionary<string, Champion> Data { get; set; }
+}
+
+public class ImageInfo
+{
+    public string Full { get; set; }
+}
+
+public class Champion : ObservableObject
+{
+    public string Id { get; init; }
+    private string _name;
+    public string Title { get; init; }
+    public List<string> Tags { get; init; }
+    public ImageInfo Image { get; set; }
+    private string? _uri;
+
+    public string Name
+    {
+        get => _name;
+        set => SetProperty(ref _name, value);
+    }
+
+    public string? Uri
+    {
+        get => _uri;
+        set => SetProperty(ref _uri, value);
+    }
+    
+    public Champion(string id, string name, string title, List<string> tags, ImageInfo image, string? uri = null)
+    {
+        this.Id = id;
+        this.Name = name;
+        this.Title = title;
+        this.Tags = tags;
+        this.Image = image;
+        this.Uri = uri;
+    }
+}
+
+public partial class MainWindowViewModel : ViewModelBase
+{
+    private HttpClient httpClient = new HttpClient();
+    private List<string> Lanes = new List<string>(["Top", "Mid", "Bot", "Sup", "Jgl"]);
+    
+    private List<Champion>? _championList = new List<Champion>();
+    private Champion? _selectedChampion;
+
+    private string? _lane;
+    private Bitmap? _laneImage;
+
+    private string? _leagueClientVersion;
+
+    public RelayCommand getRandomChampionLaneComboCommand { get; private set; }
+    
+    public Champion? SelectedChampion
+    {
+        get => _selectedChampion;
+        set => SetProperty(ref _selectedChampion, value);
+    }
+
+    public string Lane
+    {
+        get => _lane;
+        set => SetProperty(ref _lane, value);
+    }
+    
+    public Bitmap? LaneImage
+    {
+        get => _laneImage;
+        set => SetProperty(ref _laneImage, value);
+    }
+
+    public string? LeagueClientVersion
+    {
+        get => _leagueClientVersion;
+        set => SetProperty(ref _leagueClientVersion, value);
+    }
+    
+    private async Task LoadAndSetChampionImageAsync(Champion champ)
+    {
+        champ.Uri = $"http://ddragon.leagueoflegends.com/cdn/{LeagueClientVersion}/img/champion/{champ.Image.Full}";
+        // champ.Uri = await LoadChampionImageAsync(champ);
+    }
+    
+    private async Task<Bitmap?> LoadChampionImageAsync(Champion? champ)
+    {
+        if(champ == null) return null;
+        var imageUrl = $"http://ddragon.leagueoflegends.com/cdn/{LeagueClientVersion}/img/champion/{champ.Image.Full}";
+        try
+        {
+            await using var stream = await httpClient.GetStreamAsync(imageUrl);
+            return new Bitmap(stream);
+        }
+        catch
+        {
+            return null;
+        }
+    }
+
+    private async Task<string> getClientVersion()
+    {
+        try
+        {
+            var versionStr = await httpClient.GetStringAsync("https://ddragon.leagueoflegends.com/api/versions.json");
+            var versions = JsonSerializer.Deserialize<List<string>>(versionStr);
+            return versions?[0] ?? "Unavailable";
+        }
+        catch
+        {
+            return "Unavailable";
+        }
+    }
+    
+    private async Task getChampions()
+    {
+        if (httpClient == null) httpClient = new HttpClient();
+
+        LeagueClientVersion = await getClientVersion();
+        if (LeagueClientVersion == "Unavailable") return;
+
+        try
+        {
+            var url = $"http://ddragon.leagueoflegends.com/cdn/{LeagueClientVersion}/data/de_DE/champion.json";
+            var json = await httpClient.GetStringAsync(url);
+            var options = new JsonSerializerOptions
+            {
+                PropertyNameCaseInsensitive = true,
+                IgnoreReadOnlyProperties = true,
+                AllowTrailingCommas = true,
+                DefaultIgnoreCondition = System.Text.Json.Serialization.JsonIgnoreCondition.WhenWritingNull
+            };
+
+            var wrapper = JsonSerializer.Deserialize<ChampionWrapper>(json, options);
+            
+            _championList = wrapper?.Data?.Values.ToList() ?? new List<Champion>();
+            
+        }
+        catch (Exception ex)
+        {
+            Console.WriteLine("Fehler beim Laden der Champion-Daten: " + ex.Message);
+        }
+    }
+    
+    private async void getRandomChampionLaneComboCommandExecute()
+    {
+        var champ = _championList?[Random.Shared.Next(_championList.Count)];
+        if (champ != null)
+        {
+            await LoadAndSetChampionImageAsync(champ);
+            // champ.ImageBitmap = await LoadChampionImageAsync(champ);
+            SelectedChampion = champ;
+        }        
+        Lane = Lanes[Random.Shared.Next(Lanes.Count)];
+    }
+
+    public async Task InitAsync()
+    {
+        await getClientVersion();
+        await getChampions();
+    }
+    
+    public MainWindowViewModel()
+    {
+        getRandomChampionLaneComboCommand = new RelayCommand(getRandomChampionLaneComboCommandExecute);
+        _ = InitAsync();
+    }
+}

LOLRLCG/ViewModels/ViewModelBase.cs

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+using CommunityToolkit.Mvvm.ComponentModel;
+
+namespace LOLRLCG.ViewModels;
+
+public class ViewModelBase : ObservableObject
+{
+}

LOLRLCG/Views/MainWindow.axaml

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+<Window xmlns="https://github.com/avaloniaui"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:vm="using:LOLRLCG.ViewModels"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:system="clr-namespace:System;assembly=System.Runtime"
+        mc:Ignorable="d" d:DesignWidth="{StaticResource Width}" d:DesignHeight="{StaticResource Height}"
+        x:Class="LOLRLCG.Views.MainWindow"
+        x:DataType="vm:MainWindowViewModel"
+        Icon="/Assets/avalonia-logo.ico"
+        Title="LOLRLCG"
+        Width="{StaticResource Width}"
+        Height="{StaticResource Height}"
+        >
+
+    <Window.Resources>
+        <system:Double x:Key="Width">1280</system:Double>
+        <system:Double x:Key="Height">720</system:Double>
+    </Window.Resources>
+
+    <Design.DataContext>
+        <!-- This only sets the DataContext for the previewer in an IDE,
+             to set the actual DataContext for runtime, set the DataContext property in code (look at App.axaml.cs) -->
+        <vm:MainWindowViewModel/>
+    </Design.DataContext>
+    <Panel>
+        <Image Source="avares://LOLRLCG/Resources/background.png" Width="{StaticResource Width}" Height="{StaticResource Height}" HorizontalAlignment="Stretch" VerticalAlignment="Stretch"/>
+        <Grid>
+            <Grid.ColumnDefinitions>
+                <ColumnDefinition Width="*"></ColumnDefinition>
+                <ColumnDefinition Width="*"></ColumnDefinition>
+            </Grid.ColumnDefinitions>
+            <!-- Champion Visualisation -->
+            <StackPanel Grid.Column="0">
+                <TextBlock Text="{Binding SelectedChampion.Name}"></TextBlock>
+                <Image Source="{Binding SelectedChampion.Image.Full}"></Image>
+                <TextBlock Text="{Binding Lane}"></TextBlock>
+            </StackPanel>
+            <!-- Possibility Settings -->
+            <StackPanel Grid.Column="1">
+                <TextBlock Text="League Client Version: "></TextBlock>
+                <TextBlock Text="{Binding LeagueClientVersion}"></TextBlock>
+                <Button Content="Get Random Champion" Command="{Binding getRandomChampionLaneComboCommand}"/>
+            </StackPanel>
+        </Grid>
+    </Panel>
+</Window>

LOLRLCG/Views/MainWindow.axaml.cs

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+using Avalonia.Controls;
+
+namespace LOLRLCG.Views;
+
+public partial class MainWindow : Window
+{
+    public MainWindow()
+    {
+        InitializeComponent();
+    }
+}

LOLRLCG/app.manifest

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+<?xml version="1.0" encoding="utf-8"?>
+<assembly manifestVersion="1.0" xmlns="urn:schemas-microsoft-com:asm.v1">
+  <!-- This manifest is used on Windows only.
+       Don't remove it as it might cause problems with window transparency and embedded controls.
+       For more details visit https://learn.microsoft.com/en-us/windows/win32/sbscs/application-manifests -->
+  <assemblyIdentity version="1.0.0.0" name="LOLRLCG.Desktop"/>
+
+  <compatibility xmlns="urn:schemas-microsoft-com:compatibility.v1">
+    <application>
+      <!-- A list of the Windows versions that this application has been tested on
+           and is designed to work with. Uncomment the appropriate elements
+           and Windows will automatically select the most compatible environment. -->
+
+      <!-- Windows 10 -->
+      <supportedOS Id="{8e0f7a12-bfb3-4fe8-b9a5-48fd50a15a9a}" />
+    </application>
+  </compatibility>
+</assembly>