using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Globalization;
using System.Reflection;
using System.Diagnostics;

namespace libxmltv.Core
{
    internal static class ResourceStringHelper
    {
        internal static string GetResourceString(string key)
        {           
            //throw new NotImplementedException("GetResourceString(string key) is not implemented");
            return GetResourceFromDefault(key);
        }
        internal static string GetResourceString(string key, params object[] values)
        {   //throw new NotImplementedException("GetResourceString(string key, params object[] values) is not implemented");
            string resourceFromDefault = GetResourceFromDefault(key);
            return string.Format(CultureInfo.CurrentCulture, resourceFromDefault, values);
        }
        internal static string GetResourceFromDefault(string key)
        {            
            //throw new NotImplementedException("GetResourceFromDefault(string key) is not implemented");
            string res_string = string.Empty;
            try
            {
                string MethodName = "GetResourceFromDefault";
                var t = typeof(Environment);
                var method = t.GetMethod(MethodName, BindingFlags.NonPublic | BindingFlags.Static | BindingFlags.FlattenHierarchy);
                if (method == null) { throw new Exception("Environment.GetResourceFromDefault(string key): could not bind to method."); }
                res_string = method.Invoke(null, new object[] { key }).ToString();
            }
            catch (Exception ex)
            {
                Debug.WriteLine(ex.ToString());
                throw new Exception("Environment.GetResourceFromDefault(string key): unable to retrieve default resource string.", ex);
            }
            return res_string;
        }
    }
}