using System;
using System.Collections.Generic;
using System.Text;
using Microsoft.UI.Xaml.Data;
using Microsoft.UI.Xaml.Markup;

namespace WinWARP.Ui.Converters;

[MarkupExtensionReturnType(ReturnType = typeof(IValueConverter))]
public class CountryCodeToUriConverter : MarkupExtension, IValueConverter
{
    protected override object ProvideValue() => this;

    public object Convert(object value, Type targetType, object parameter, string language)
    {
        if (value is string countryCode)
        {
            if (!string.IsNullOrWhiteSpace(countryCode))
            {
                return new Uri($"ms-appx:///Assets/Flags/{countryCode.ToLower()}.svg");
            }
            else
            {
                return new Uri("ms-appx:///Assets/Flags/xx.svg");
            }
        }
        else return null;
    }

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