Dependency Injection, frist UI Reworks

Stars Assistant/Model/StarsDatabase.cs

@@ -20,7 +20,9 @@ public class StarsDatabase(string DbPath) : DbContext
 
     #endregion
 
-    #region Entities
+    #region IStarsDatabase Implementation
+
+    public DbContext DbContext => this;
 
     /// <summary>
     /// List of all Planets read.

Stars Assistant/Program.cs

@@ -1,5 +1,6 @@
 using System;
 using Avalonia;
+using Splat;
 
 using Microsoft.EntityFrameworkCore;
 using CsvHelper.Configuration;
@@ -19,6 +20,12 @@ sealed class Program
     [STAThread]
     public static void Main(string[] args) 
     {
+        ModeDetector.OverrideModeDetector(Splat.ModeDetection.Mode.Run);
+        Locator.CurrentMutable.Register(
+            () => new StarsDatabase("stars.sqlite"),
+            typeof(StarsDatabase)
+        );
+
         __createTestData();
         
         BuildAvaloniaApp()
@@ -36,13 +43,13 @@ sealed class Program
 
     public static void __createTestData ()
     {
-        using var db = new StarsDatabase("stars.sqlite");
+        using var db = Locator.Current.GetService<StarsDatabase>()!;
 
         db.Database.EnsureDeleted();
         db.Database.EnsureCreated();
 
         // Note: This sample requires the database to be created before running.
-        Console.WriteLine($"Database path: {db.DbPath}.");
+        // Console.WriteLine($"Database path: {db.DbPath}.");
 
         Race r = new()
         {

Stars Assistant/Stars Assistant.csproj

@@ -27,6 +27,7 @@
     <PackageReference Include="Avalonia.Fonts.Inter" Version="11.0.10" />
     <!--Condition below is needed to remove Avalonia.Diagnostics package from build output in Release configuration.-->
     <PackageReference Condition="'$(Configuration)' == 'Debug'" Include="Avalonia.Diagnostics" Version="11.1.3" />
+    <PackageReference Include="Splat" Version="15.1.1" />
     <PackageReference Include="System.Reactive" Version="6.0.1" />
   </ItemGroup>
 

Stars Assistant/ViewModels/PlanetViewModel.cs

@@ -1,15 +1,16 @@
 using System.Collections.ObjectModel;
 using Microsoft.EntityFrameworkCore;
 using StarsAssistant.Model;
+using Splat;
 
 namespace StarsAssistant.ViewModels;
 
 public partial class PlanetViewModel(Planet planet) : ViewModelBase
 {
     public static ObservableCollection<PlanetViewModel> LoadAll() {
-        var context = new StarsDatabase("stars.sqlite");
+        using var db = Locator.Current.GetService<StarsDatabase>()!;
         var result = new ObservableCollection<PlanetViewModel>();
-        foreach (Planet planet in context.Planet.Where(p => p.OwnerId == "Atlantis").ToList())
+        foreach (Planet planet in db.Planet.Where(p => p.OwnerId == "Atlantis").ToList())
         {
             var vm = new PlanetViewModel(planet);
             result.Add(vm);
@@ -24,4 +25,12 @@ public partial class PlanetViewModel(Planet planet) : ViewModelBase
     public string Owner => planet.OwnerId ?? String.Empty;
 
     public int Value => planet.Value ?? 0;
+
+    public int Population => planet.Population ?? 0;
+
+    public int SurfaceIronium => planet.SurfaceIronium ?? 0;
+
+    public int SurfaceBoranium => planet.SurfaceBoranium ?? 0;
+
+    public int SurfaceGermanium => planet.SurfaceGermanium ?? 0;
 }

Stars Assistant/Views/MainWindow.axaml

@@ -19,18 +19,7 @@
 
     <TabControl>
         <TabItem Header="Home">
-            <StackPanel>
-                <Border Margin="5" CornerRadius="10" Background="LightBlue">
-                    <TextBlock Margin="5" FontSize="24" HorizontalAlignment="Center" Text="{Binding Greeting}"></TextBlock>
-                </Border>
-                <Grid ShowGridLines="True" Margin="5" ColumnDefinitions="120, 100" RowDefinitions="Auto, Auto, Auto">  
-                    <Label Grid.Row="0" Grid.Column="0" Margin="10">Celsius</Label>
-                    <TextBox Grid.Row="0" Grid.Column="1" Margin="0 5" Text="0" Name="celsius"/>
-                    <Label Grid.Row="1" Grid.Column="0" Margin="10">Fahrenheit</Label>
-                    <TextBox Grid.Row="1"  Grid.Column="1" Margin="0 5" Text="0" Name="fahrenheit"/>
-                    <Button Grid.Row="2" Grid.Column="1" Margin="0 5" Click="ButtonClicked">Calculate</Button>
-                </Grid>
-            </StackPanel>
+            Welcome to Stars Assistant!
         </TabItem>
         <TabItem Header="DataGrid">
             <DataGrid ItemsSource="{Binding Planets}"   

Stars Assistant/Views/MainWindow.axaml.cs

@@ -11,18 +11,4 @@ public partial class MainWindow : Window
     {
         InitializeComponent();
     }
-
-    public void ButtonClicked(object source, RoutedEventArgs args)
-    {
-        if (Double.TryParse(celsius.Text, out double C))
-        {
-            var F = C * (9d / 5d) + 32;
-            fahrenheit.Text = F.ToString("0.0");
-        }
-        else
-        {
-            celsius.Text = "0";
-            fahrenheit.Text = "0";
-        }
-    }
 }