- add: Localisation - start

Nebula.Launcher/Services/LocalisationService.cs

@@ -0,0 +1,45 @@
+using System;
+using System.Globalization;
+using System.IO;
+using Avalonia.Platform;
+using Fluent.Net;
+using Nebula.Shared;
+using Nebula.Shared.Services;
+
+namespace Nebula.Launcher.Services;
+
+[ConstructGenerator, ServiceRegister]
+public partial class LocalisationService
+{
+    [GenerateProperty] private ConfigurationService ConfigurationService { get; }
+
+    private CultureInfo _currentCultureInfo = CultureInfo.CurrentCulture;
+    private MessageContext _currentMessageContext;
+    
+    private void Initialise()
+    {
+       // LoadLanguage(CultureInfo.GetCultureInfo(ConfigurationService.GetConfigValue(LauncherConVar.CurrentLang)!));
+    }
+
+    public void LoadLanguage(CultureInfo cultureInfo)
+    {
+        _currentCultureInfo = cultureInfo;
+        using var fs = AssetLoader.Open(new Uri($@"Assets/lang/{_currentCultureInfo.EnglishName}.ftl"));
+        using var sr = new StreamReader(fs);
+        
+        var options = new MessageContextOptions { UseIsolating = false };
+        var mc = new MessageContext(cultureInfo.EnglishName, options);
+        var errors = mc.AddMessages(sr);
+        foreach (var error in errors)
+        {
+            Console.WriteLine(error);
+        }
+
+        _currentMessageContext = mc;
+    }
+
+    private void InitialiseInDesignMode()
+    {
+        Initialise();
+    }
+}