using System.Globalization;
using System.Resources;
using System.Threading;

namespace System.Configuration.InstallUtilResources
{
	internal sealed class Res
	{
		internal const string InstallUtilSignOnMessage = "InstallUtilSignOnMessage";

		private static Res loader;

		private ResourceManager resources;

		private static object s_InternalSyncObject;

		private static object InternalSyncObject
		{
			get
			{
				if (s_InternalSyncObject == null)
				{
					object value = new object();
					Interlocked.CompareExchange(ref s_InternalSyncObject, value, null);
				}
				return s_InternalSyncObject;
			}
		}

		private static CultureInfo Culture => null;

		public static ResourceManager Resources => GetLoader().resources;

		internal Res()
		{
			resources = new ResourceManager("InstallUtil", GetType().Assembly);
		}

		private static Res GetLoader()
		{
			if (loader == null)
			{
				lock (InternalSyncObject)
				{
					if (loader == null)
					{
						loader = new Res();
					}
				}
			}
			return loader;
		}

		public static string GetString(string name, params object[] args)
		{
			Res res = GetLoader();
			if (res == null)
			{
				return null;
			}
			string @string = res.resources.GetString(name, Culture);
			if (args != null && args.Length > 0)
			{
				for (int i = 0; i < args.Length; i++)
				{
					string text = args[i] as string;
					if (text != null && text.Length > 1024)
					{
						args[i] = text.Substring(0, 1021) + "...";
					}
				}
				return string.Format(CultureInfo.CurrentCulture, @string, args);
			}
			return @string;
		}

		public static string GetString(string name)
		{
			return GetLoader()?.resources.GetString(name, Culture);
		}

		public static object GetObject(string name)
		{
			return GetLoader()?.resources.GetObject(name, Culture);
		}
	}
}