Migrate

microservices/packages/blazor-ui/Components/Common/LanguageSwitcher.razor

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+@using System.Globalization
+@inject NavigationManager Navigation
+@inject IJSRuntime JS
+
+<MudMenu Dense="true" AnchorOrigin="Origin.BottomRight" TransformOrigin="Origin.TopRight" LockScroll="true">
+    <ActivatorContent>
+        <MudStack Row="true" AlignItems="AlignItems.Center" Spacing="1" Class="mr-2 cursor-pointer">
+             <MudText Typo="Typo.button" Style="font-family: var(--font-heading);">
+                @GetCurrentLabel()
+             </MudText>
+             <MudIcon Icon="@Icons.Material.Rounded.Language" Size="Size.Small" />
+        </MudStack>
+    </ActivatorContent>
+    <ChildContent>
+        <MudMenuItem OnClick="@(() => SwitchLanguage("vi-VN"))">
+            <MudStack Row="true" Spacing="2">
+                <MudText>🇻🇳</MudText>
+                <MudText>Tiếng Việt</MudText>
+            </MudStack>
+        </MudMenuItem>
+        <MudMenuItem OnClick="@(() => SwitchLanguage("en-US"))">
+            <MudStack Row="true" Spacing="2">
+                <MudText>🇺🇸</MudText>
+                <MudText>English</MudText>
+            </MudStack>
+        </MudMenuItem>
+    </ChildContent>
+</MudMenu>
+
+@code {
+    private string GetCurrentLabel()
+    {
+        var culture = CultureInfo.CurrentUICulture.Name;
+        return culture.StartsWith("vi", StringComparison.OrdinalIgnoreCase) ? "VI" : "EN";
+    }
+
+    private async Task SwitchLanguage(string targetCulture)
+    {
+        // Save to localStorage for persistence across page reloads
+        await JS.InvokeVoidAsync("localStorage.setItem", "aPOS_culture", targetCulture);
+        
+        // Force full page reload to reinitialize the WASM app with new culture
+        var currentUri = Navigation.Uri;
+        var uri = new Uri(currentUri);
+        
+        // Build clean URL (strip any culture segments from path)
+        var path = uri.AbsolutePath;
+        var segments = path.Split('/', StringSplitOptions.RemoveEmptyEntries);
+        
+        // Remove existing culture segment if present
+        if (segments.Length > 0 && (
+            segments[0].Equals("vi-VN", StringComparison.OrdinalIgnoreCase) || 
+            segments[0].Equals("en-US", StringComparison.OrdinalIgnoreCase) ||
+            segments[0].Equals("vi", StringComparison.OrdinalIgnoreCase) || 
+            segments[0].Equals("en", StringComparison.OrdinalIgnoreCase)))
+        {
+            segments = segments.Skip(1).ToArray();
+        }
+        
+        var cleanPath = "/" + string.Join('/', segments);
+        if (cleanPath == "/") cleanPath = "";
+        
+        // Navigate to root with forceLoad to reinitialize WASM
+        Navigation.NavigateTo($"{cleanPath}", forceLoad: true);
+    }
+}