using System;
using System.Xml;

namespace Commons.Xml.Nvdl
{
	public class NvdlException : Exception
	{
		public NvdlException (string message)
			: base (message)
		{
		}

		public NvdlException (string message, Exception inner)
			: base (message ,inner)
		{
		}

		internal static string FormatMessage (string message,
			IXmlLineInfo lineInfo)
		{
			NvdlElementBase source = lineInfo as NvdlElementBase;
			if (source != null && source.HasLineInfo ())
				return String.Format ("{0}. {1} ({2},{3})",
					message, source.SourceUri,
					source.LineNumber, source.LinePosition);
			else if (lineInfo != null)
				return String.Format ("{0}. ({1},{2})",
					message,
					lineInfo.LineNumber, lineInfo.LinePosition);
			else
				return message;
		}
	}

	public class NvdlCompileException : NvdlException
	{
		public NvdlCompileException (string message,
			IXmlLineInfo source)
			: this (message, null, source)
		{
		}

		public NvdlCompileException (string message, Exception inner,
			IXmlLineInfo source)
			: base (FormatMessage (message, source), inner)
		{
		}
	}

	public class NvdlValidationException : NvdlException
	{
		public NvdlValidationException (string message,
			IXmlLineInfo source)
			: this (message, null, source)
		{
		}

		public NvdlValidationException (string message, Exception inner,
			IXmlLineInfo source)
			: base (FormatMessage (message, source), inner)
		{
		}
	}
}