#region License
/*---------------------------------------------------------------------------------*\

	Distributed under the terms of an MIT-style license:

	The MIT License

	Copyright (c) 2006-2009 Stephen M. McKamey

	Permission is hereby granted, free of charge, to any person obtaining a copy
	of this software and associated documentation files (the "Software"), to deal
	in the Software without restriction, including without limitation the rights
	to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	copies of the Software, and to permit persons to whom the Software is
	furnished to do so, subject to the following conditions:

	The above copyright notice and this permission notice shall be included in
	all copies or substantial portions of the Software.

	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
	AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
	OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
	THE SOFTWARE.

\*---------------------------------------------------------------------------------*/
#endregion License

using System;
using System.Runtime.Serialization;

namespace JsonFx.BuildTools
{
	public enum ParseExceptionType
	{
		Warning,
		Error
	}

	[Serializable]
	public abstract class ParseException : ApplicationException
	{
		#region Constants

		// this cannot change every char is important or VS2005 will not list as error/warning
		private const string VS2005ErrorFormat = "{0}({1},{2}): {3} {4}: {5}";

		#endregion Constants

		#region Fields

		private string file;
		private int line;
		private int column;
		private int code = 0;

		#endregion Fields

		#region Init

		public ParseException(string message, string file, int line, int column)
			: base(message)
		{
			this.file = file;
			this.line = line;
			this.column = column;
		}

		public ParseException(string message, string file, int line, int column, Exception innerException)
			: base(message, innerException)
		{
			this.file = file;
			this.line = line;
			this.column = column;
		}

		#endregion Init

		#region Properties

		public abstract ParseExceptionType Type
		{
			get;
		}

		public virtual int Code
		{
			get { return this.code; }
		}

		public string ErrorCode
		{
			get
			{
				string ext = System.IO.Path.GetExtension(file);
				if (ext == null || ext.Length < 2)
				{
					return null;
				}

				return ext.Substring(1).ToUpperInvariant()+this.Code.ToString("####0000");
			}
		}

		public string File
		{
			get { return this.file; }
		}

		public int Line
		{
			get { return this.line; }
		}

		public int Column
		{
			get { return this.column; }
		}

		#endregion Properties

		#region Methods

		public virtual string GetCompilerMessage()
		{
			return this.GetCompilerMessage(this.Type == ParseExceptionType.Warning);
		}

		public virtual string GetCompilerMessage(bool isWarning)
		{
			// format exception as a VS2005 error/warning
			return String.Format(
				ParseException.VS2005ErrorFormat,
				this.File,
				(this.Line > 0) ? this.Line : 1,
				(this.Column > 0) ? this.Column : 1,
				isWarning ? "warning" : "error",
				this.ErrorCode,
				this.Message);
		}

		#endregion Methods
	}

	[Serializable]
	public class ParseWarning : ParseException
	{
		#region Init

		public ParseWarning(string message, string file, int line, int column)
			: base(message, file, line, column)
		{
		}

		public ParseWarning(string message, string file, int line, int column, Exception innerException)
			: base(message, file, line, column, innerException)
		{
		}

		#endregion Init

		#region Properties

		public override ParseExceptionType Type
		{
			get { return ParseExceptionType.Warning; }
		}

		#endregion Properties
	}

	[Serializable]
	public class ParseError : ParseException
	{
		#region Init

		public ParseError(string message, string file, int line, int column)
			: base(message, file, line, column)
		{
		}

		public ParseError(string message, string file, int line, int column, Exception innerException)
			: base(message, file, line, column, innerException)
		{
		}

		#endregion Init

		#region Properties

		public override ParseExceptionType Type
		{
			get { return ParseExceptionType.Error; }
		}

		#endregion Properties
	}

	[Serializable]
	public class UnexpectedEndOfFile : ParseError
	{
		#region Init

		public UnexpectedEndOfFile(string message, string file, int line, int column)
			: base(message, file, line, column)
		{
		}

		public UnexpectedEndOfFile(string message, string file, int line, int column, Exception innerException)
			: base(message, file, line, column, innerException)
		{
		}

		#endregion Init
	}

	[Serializable]
	public class FileError : ParseWarning
	{
		#region Init

		public FileError(string message, string file, int line, int column)
			: base(message, file, line, column)
		{
		}

		public FileError(string message, string file, int line, int column, Exception innerException)
			: base(message, file, line, column, innerException)
		{
		}

		#endregion Init
	}

	[Serializable]
	public class SyntaxError : ParseError
	{
		#region Init

		public SyntaxError(string message, string file, int line, int column)
			: base(message, file, line, column)
		{
		}

		public SyntaxError(string message, string file, int line, int column, Exception innerException)
			: base(message, file, line, column, innerException)
		{
		}

		#endregion Init
	}
}