TaskTrackingSystem.WebApp/Components/Partial/LanguageToggle.razor

@rendermode @(new InteractiveServerRenderMode(prerender: false))
@implements IDisposable
@inject TaskTrackingSystem.WebApp.Localization.UiLanguageService Language

<button type="button"
        @onclick="ToggleLanguage"
        class="control-button px-3"
        title="@ButtonTitle"
        aria-label="@ButtonTitle">
    <span class="text-xs font-semibold tracking-wide">@ButtonLabel</span>
</button>

@code {
    private string ButtonTitle => Language.CurrentLanguage == TaskTrackingSystem.WebApp.Localization.AppLanguage.Burmese
        ? Language.Texts.LanguageTitle + ": " + Language.Texts.LanguageEnglish
        : Language.Texts.LanguageTitle + ": " + Language.Texts.LanguageBurmese;

    private string ButtonLabel => Language.CurrentLanguage == TaskTrackingSystem.WebApp.Localization.AppLanguage.Burmese
        ? "MY"
        : "EN";

    protected override async Task OnAfterRenderAsync(bool firstRender)
    {
        if (firstRender)
        {
            Language.Changed += OnLanguageChanged;
            await Language.InitializeAsync();
            StateHasChanged();
        }
    }

    private async Task ToggleLanguage()
    {
        await Language.ToggleAsync();
    }

    private void OnLanguageChanged()
    {
        _ = InvokeAsync(StateHasChanged);
    }

    public void Dispose()
    {
        Language.Changed -= OnLanguageChanged;
    }
}