BetterLyrics/BetterLyrics.WinUI3/BetterLyrics.WinUI3/Converter/LanguageCodeToDisplayedNameConverter.cs

using BetterLyrics.WinUI3.Helper;
using BetterLyrics.WinUI3.Services;
using Microsoft.UI.Xaml.Data;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Windows.Globalization;

namespace BetterLyrics.WinUI3.Converter
{
    public partial class LanguageCodeToDisplayedNameConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, string language)
        {
            if (value is string langCode)
            {
                if (PhoneticHelper.IsPhoneticCode(langCode))
                {
                    return PhoneticHelper.GetDisplayName(langCode);
                }
                else
                {
                    return new Language(langCode).DisplayName ?? langCode;
                }
            }
            return value?.ToString() ?? "";
        }

        public object ConvertBack(object value, Type targetType, object parameter, string language)
        {
            throw new NotImplementedException();
        }
    }
}