using System;
using System.Windows.Markup;
using RealtimeModule.Resources;

namespace RealtimeModule
{
    [MarkupExtensionReturnType(typeof(string))]
    public class TranslateExtension : MarkupExtension
    {
        private readonly string _key;
        public TranslateExtension(string key) { _key = key; }

        private const string NotFound = "#stringnotfound#";

        public override object ProvideValue(IServiceProvider serviceProvider)
        {
            if (string.IsNullOrEmpty(_key)) { return NotFound; }
            return StringResources.ResourceManager.GetString(_key) ?? NotFound + " " + _key;
        }
    }
}