Translated dates based on display language. (#567)

* Updating the app's culture based on the display language and making sure that dates/times are properly translated.

Wino.Core.Domain/Interfaces/ITranslationService.cs

@@ -9,4 +9,5 @@ public interface ITranslationService : IInitializeAsync
 {
     Task InitializeLanguageAsync(AppLanguage language, bool ignoreCurrentLanguageCheck = false);
     List<AppLanguageModel> GetAvailableLanguages();
+    AppLanguageModel CurrentLanguageModel { get; }
 }

Wino.Core.Domain/Models/Translations/AppLanguageModel.cs

@@ -2,4 +2,4 @@
 
 namespace Wino.Core.Domain.Models.Translations;
 
-public record AppLanguageModel(AppLanguage Language, string DisplayName);
+public record AppLanguageModel(AppLanguage Language, string DisplayName, string Code);

Wino.Core.UWP/Helpers/XamlHelpers.cs

@@ -36,9 +36,6 @@ public static class XamlHelpers
         };
     }
 
-
-
-
     public static Visibility ReverseBoolToVisibilityConverter(bool value) => value ? Visibility.Collapsed : Visibility.Visible;
     public static Visibility ReverseVisibilityConverter(Visibility visibility) => visibility == Visibility.Visible ? Visibility.Collapsed : Visibility.Visible;
     public static bool ReverseBoolConverter(bool value) => !value;
@@ -125,7 +122,7 @@ public static class XamlHelpers
     public static string GetCreationDateString(DateTime date, bool prefer24HourTime)
     {
         var localTime = date.ToLocalTime();
-        return $"{localTime.ToLongDateString()} {(prefer24HourTime ? localTime.ToString(TwentyFourHourTimeFormat) : localTime.ToString(TwelveHourTimeFormat))}";
+        return $"{localTime.ToString("D", CultureInfo.DefaultThreadCurrentUICulture)} {(prefer24HourTime ? localTime.ToString(TwentyFourHourTimeFormat) : localTime.ToString(TwelveHourTimeFormat))}";
     }
     public static string GetMailGroupDateString(object groupObject)
     {
@@ -152,7 +149,10 @@ public static class XamlHelpers
                 else if (dateTimeValue == DateTime.Today.AddDays(-1))
                     return Translator.Yesterday;
                 else
-                    return dateTimeValue.ToLongDateString();
+                {
+                    return dateTimeValue.ToString("D", CultureInfo.DefaultThreadCurrentUICulture);
+                }
+
             }
             else
                 return dateObject.ToString();

Wino.Core.UWP/WinoApplication.cs

@@ -1,8 +1,10 @@
 using System;
 using System.Collections.Generic;
+using System.Globalization;
 using System.IO;
 using System.Linq;
 using System.Threading.Tasks;
+using CommunityToolkit.Mvvm.Messaging;
 using Microsoft.Extensions.DependencyInjection;
 using Nito.AsyncEx;
 using Serilog;
@@ -11,6 +13,7 @@ using Windows.ApplicationModel.Activation;
 using Windows.ApplicationModel.AppService;
 using Windows.ApplicationModel.Core;
 using Windows.Foundation.Metadata;
+using Windows.Globalization;
 using Windows.Storage;
 using Windows.UI;
 using Windows.UI.Core.Preview;
@@ -20,11 +23,13 @@ using Windows.UI.Xaml.Controls;
 using Wino.Activation;
 using Wino.Core.Domain;
 using Wino.Core.Domain.Interfaces;
+using Wino.Core.Domain.Models.Translations;
+using Wino.Messaging.Client.Shell;
 using Wino.Services;
 
 namespace Wino.Core.UWP;
 
-public abstract class WinoApplication : Application
+public abstract class WinoApplication : Application, IRecipient<LanguageChanged>
 {
     public new static WinoApplication Current => (WinoApplication)Application.Current;
     public const string WinoLaunchLogPrefix = "[Wino Launch] ";
@@ -215,8 +220,6 @@ public abstract class WinoApplication : Application
             CoreApplication.EnablePrelaunch(true);
     }
 
-
-
     public virtual async void OnResuming(object sender, object e)
     {
         // App Service connection was lost on suspension.
@@ -245,4 +248,16 @@ public abstract class WinoApplication : Application
         string logFilePath = Path.Combine(ApplicationData.Current.LocalFolder.Path, Constants.ClientLogFile);
         LogInitializer.SetupLogger(logFilePath);
     }
+
+    public virtual void OnLanguageChanged(AppLanguageModel languageModel)
+    {
+        var newCulture = new CultureInfo(languageModel.Code);
+
+        ApplicationLanguages.PrimaryLanguageOverride = languageModel.Code;
+
+        CultureInfo.DefaultThreadCurrentCulture = newCulture;
+        CultureInfo.DefaultThreadCurrentUICulture = newCulture;
+    }
+
+    public void Receive(LanguageChanged message) => OnLanguageChanged(TranslationService.CurrentLanguageModel);
 }

Wino.Mail/App.xaml.cs

@@ -24,12 +24,14 @@ using Wino.Mail.Services;
 using Wino.Mail.ViewModels;
 using Wino.Messaging.Client.Connection;
 using Wino.Messaging.Client.Navigation;
+using Wino.Messaging.Client.Shell;
 using Wino.Messaging.Server;
 using Wino.Services;
 
 namespace Wino;
 
-public sealed partial class App : WinoApplication, IRecipient<NewMailSynchronizationRequested>
+public sealed partial class App : WinoApplication,
+    IRecipient<NewMailSynchronizationRequested>
 {
     private BackgroundTaskDeferral connectionBackgroundTaskDeferral;
     private BackgroundTaskDeferral toastActionBackgroundTaskDeferral;
@@ -40,7 +42,8 @@ public sealed partial class App : WinoApplication, IRecipient<NewMailSynchroniza
 
         Encoding.RegisterProvider(CodePagesEncodingProvider.Instance);
 
-        WeakReferenceMessenger.Default.Register(this);
+        WeakReferenceMessenger.Default.Register<LanguageChanged>(this);
+        WeakReferenceMessenger.Default.Register<NewMailSynchronizationRequested>(this);
     }
 
     public override async void OnResuming(object sender, object e)

Wino.Services/TranslationService.cs

@@ -1,5 +1,6 @@
 using System.Collections.Generic;
 using System.IO;
+using System.Linq;
 using System.Text.Json;
 using System.Threading.Tasks;
 using CommunityToolkit.Mvvm.Messaging;
@@ -20,6 +21,8 @@ public class TranslationService : ITranslationService
     private readonly IPreferencesService _preferencesService;
     private bool isInitialized = false;
 
+    public AppLanguageModel CurrentLanguageModel { get; private set; }
+
     public TranslationService(IPreferencesService preferencesService)
     {
         _preferencesService = preferencesService;
@@ -56,6 +59,7 @@ public class TranslationService : ITranslationService
         }
 
         _preferencesService.CurrentLanguage = language;
+        CurrentLanguageModel = GetAvailableLanguages().FirstOrDefault(a => a.Language == language);
 
         isInitialized = true;
         WeakReferenceMessenger.Default.Send(new LanguageChanged());
@@ -65,20 +69,20 @@ public class TranslationService : ITranslationService
     {
         return
         [
-            new AppLanguageModel(AppLanguage.Chinese, "Chinese"),
-            new AppLanguageModel(AppLanguage.Czech, "Czech"),
-            new AppLanguageModel(AppLanguage.Deutsch, "Deutsch"),
-            new AppLanguageModel(AppLanguage.English, "English"),
-            new AppLanguageModel(AppLanguage.French, "French"),
-            new AppLanguageModel(AppLanguage.Italian, "Italian"),
-            new AppLanguageModel(AppLanguage.Greek, "Greek"),
-            new AppLanguageModel(AppLanguage.Indonesian, "Indonesian"),
-            new AppLanguageModel(AppLanguage.Polish, "Polski"),
-            new AppLanguageModel(AppLanguage.PortugeseBrazil, "Portugese-Brazil"),
-            new AppLanguageModel(AppLanguage.Russian, "Russian"),
-            new AppLanguageModel(AppLanguage.Romanian, "Romanian"),
-            new AppLanguageModel(AppLanguage.Spanish, "Spanish"),
-            new AppLanguageModel(AppLanguage.Turkish, "Turkish")
+            new AppLanguageModel(AppLanguage.Chinese, "Chinese", "zh-CN"),
+            new AppLanguageModel(AppLanguage.Czech, "Czech", "cs-CZ"),
+            new AppLanguageModel(AppLanguage.Deutsch, "Deutsch", "de-DE"),
+            new AppLanguageModel(AppLanguage.English, "English", "en-US"),
+            new AppLanguageModel(AppLanguage.French, "French", "fr-FR"),
+            new AppLanguageModel(AppLanguage.Italian, "Italian", "it-IT"),
+            new AppLanguageModel(AppLanguage.Greek, "Greek", "el-GR"),
+            new AppLanguageModel(AppLanguage.Indonesian, "Indonesian", "id-ID"),
+            new AppLanguageModel(AppLanguage.Polish, "Polski", "pl-PL"),
+            new AppLanguageModel(AppLanguage.PortugeseBrazil, "Portugese-Brazil", "pt-BR"),
+            new AppLanguageModel(AppLanguage.Russian, "Russian", "ru-RU"),
+            new AppLanguageModel(AppLanguage.Romanian, "Romanian", "ro-RO"),
+            new AppLanguageModel(AppLanguage.Spanish, "Spanish", "es-ES"),
+            new AppLanguageModel(AppLanguage.Turkish, "Turkish", "tr-TR")
         ];
     }
 }