interface ILog
	{
		void Log(int level, string message);
	}

	interface ILogMessage
	{
		ILog Log { get; }
		string Message { get; }
	}

	public static class ILogExtensions
	{
		private class LogMessage : ILogMessage
		{
			public LogMessage(ILog log, string message)
			{
				this.Log = log;
				this.Message = message;
			}

			#region ILogMessage Members

			public ILog Log { get; private set; }

			public string Message{ get; private set; }

			#endregion
		}

		public static ILogMessage That(this ILog self, string message)
		{
			return new LogMessage(self, message);
		}
	}

	public static class ILogMessageExtensions
	{
		public static void If(this ILogMessage self, Func<bool> condition)
		{
			if (condition())
				self.Log.Log(-1, self.Message);
		}
	}