ava: Generate Locale menu automatically (#4243)

Currently in `MenuMainBarView.axaml` we list all available languages and hardcode the language name with the language key.
It's a bit bad beause if we want to add a new language, we have to edit the `csproj` and the `axaml` with the translated language name and the language code.
I've put all translations in their respective locale files, add code into `MainMenuBarView` constructor to generate the menu automatically. Now we just have to edit the `csproj` if we want to add a new language.

2 files changed, 46 insertions, 61 deletions

diff --git a/Ryujinx.Ava/UI/Views/Main/MainMenuBarView.axaml b/Ryujinx.Ava/UI/Views/Main/MainMenuBarView.axaml
index 0d0ae119..bd26561a 100644
--- a/Ryujinx.Ava/UI/Views/Main/MainMenuBarView.axaml
+++ b/Ryujinx.Ava/UI/Views/Main/MainMenuBarView.axaml
@@ -77,63 +77,7 @@
                     </MenuItem.Icon>
                 </MenuItem>
                 <Separator />
-                <MenuItem Header="{locale:Locale MenuBarOptionsChangeLanguage}">
-                    <MenuItem
-                        Command="{ReflectionBinding ChangeLanguage}"
-                        CommandParameter="de_DE"
-                        Header="Deutsch" />
-                    <MenuItem
-                        Command="{ReflectionBinding ChangeLanguage}"
-                        CommandParameter="en_US"
-                        Header="English (US)" />
-                    <MenuItem
-                        Command="{ReflectionBinding ChangeLanguage}"
-                        CommandParameter="es_ES"
-                        Header="Español (ES)" />
-                    <MenuItem
-                        Command="{ReflectionBinding ChangeLanguage}"
-                        CommandParameter="fr_FR"
-                        Header="Français" />
-                    <MenuItem
-                        Command="{ReflectionBinding ChangeLanguage}"
-                        CommandParameter="it_IT"
-                        Header="Italiano" />
-                    <MenuItem
-                        Command="{ReflectionBinding ChangeLanguage}"
-                        CommandParameter="pt_BR"
-                        Header="Português (BR)" />
-                    <MenuItem
-                        Command="{ReflectionBinding ChangeLanguage}"
-                        CommandParameter="tr_TR"
-                        Header="Türkçe" />
-                    <MenuItem
-                        Command="{ReflectionBinding ChangeLanguage}"
-                        CommandParameter="el_GR"
-                        Header="Ελληνικά" />
-                    <MenuItem
-                        Command="{ReflectionBinding ChangeLanguage}"
-                        CommandParameter="pl_PL"
-                        Header="Polski" />
-                    <MenuItem
-                        Command="{ReflectionBinding ChangeLanguage}"
-                        CommandParameter="ru_RU"
-                        Header="Русский" />
-                    <MenuItem
-                        Command="{ReflectionBinding ChangeLanguage}"
-                        CommandParameter="zh_CN"
-                        Header="简体中文" />
-                    <MenuItem
-                        Command="{ReflectionBinding ChangeLanguage}"
-                        CommandParameter="zh_TW"
-                        Header="繁體中文" />
-                    <MenuItem
-                        Command="{ReflectionBinding ChangeLanguage}"
-                        CommandParameter="ja_JP"
-                        Header="日本語" />
-                    <MenuItem
-                        Command="{ReflectionBinding ChangeLanguage}"
-                        CommandParameter="ko_KR"
-                        Header="한국어" />
+                <MenuItem Name="ChangeLanguageMenuItem" Header="{locale:Locale MenuBarOptionsChangeLanguage}">
                 </MenuItem>
                 <Separator />
                 <MenuItem
diff --git a/Ryujinx.Ava/UI/Views/Main/MainMenuBarView.axaml.cs b/Ryujinx.Ava/UI/Views/Main/MainMenuBarView.axaml.cs
index 788f47a1..31dbb1b7 100644
--- a/Ryujinx.Ava/UI/Views/Main/MainMenuBarView.axaml.cs
+++ b/Ryujinx.Ava/UI/Views/Main/MainMenuBarView.axaml.cs
@@ -1,13 +1,20 @@
 using Avalonia;
 using Avalonia.Controls;
 using Avalonia.Interactivity;
-using Ryujinx.Ava.UI.ViewModels;
-using Ryujinx.Ava.UI.Windows;
-using System.Threading.Tasks;
 using LibHac.FsSystem;
 using LibHac.Ncm;
+using Ryujinx.Ava.UI.Helpers;
+using Ryujinx.Ava.UI.ViewModels;
+using Ryujinx.Ava.UI.Windows;
+using Ryujinx.Common;
+using Ryujinx.Common.Utilities;
 using Ryujinx.HLE.HOS;
 using Ryujinx.Modules;
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Threading.Tasks;
 
 namespace Ryujinx.Ava.UI.Views.Main
 {
@@ -19,13 +26,47 @@ namespace Ryujinx.Ava.UI.Views.Main
         public MainMenuBarView()
         {
             InitializeComponent();
+
+            List<MenuItem> menuItems = new();
+
+            string localePath = "Ryujinx.Ava/Assets/Locales";
+            string localeExt  = ".json";
+
+            string[] localesPath = EmbeddedResources.GetAllAvailableResources(localePath, localeExt);
+
+            Array.Sort(localesPath);
+
+            foreach (string locale in localesPath)
+            {
+                string languageCode = Path.GetFileNameWithoutExtension(locale).Split('.').Last();
+                string languageJson = EmbeddedResources.ReadAllText($"{localePath}/{languageCode}{localeExt}");
+                var    strings      = JsonHelper.Deserialize<Dictionary<string, string>>(languageJson);
+
+                if (!strings.TryGetValue("Language", out string languageName))
+                {
+                    languageName = languageCode;
+                }
+
+                MenuItem menuItem = new()
+                {
+                    Header  = languageName,
+                    Command = MiniCommand.Create(() =>
+                    {
+                        ViewModel.ChangeLanguage(languageCode);
+                    })
+                };
+
+                menuItems.Add(menuItem);
+            }
+
+            ChangeLanguageMenuItem.Items = menuItems.ToArray();
         }
 
         protected override void OnAttachedToVisualTree(VisualTreeAttachmentEventArgs e)
         {
             base.OnAttachedToVisualTree(e);
 
-            if (this.VisualRoot is MainWindow window)
+            if (VisualRoot is MainWindow window)
             {
                 Window = window;
             }