using System;
using System.Diagnostics;
using System.Text;
using System.Xml;

namespace Tizen.NUI.Xaml
{
    internal class XamlParseException : Exception
    {
        readonly string _unformattedMessage;

        static private StringBuilder GetStackInfo()
        {
            StringBuilder ret = new StringBuilder("\nStack:\n");

            StackTrace st = new StackTrace(true);

            for (int i = 2; i < st.FrameCount; i++)
            {
                StackFrame sf = st.GetFrame(i);
                ret.AppendFormat("File:{0}, Method:{1}, Line:{2}\n", sf.GetFileName(), sf.GetMethod().Name, sf.GetFileLineNumber());
            }

            return ret;
        }

        public XamlParseException(string message, IXmlLineInfo xmlInfo, Exception innerException = null) : base(FormatMessage(message + GetStackInfo(), xmlInfo), innerException)
        {
            _unformattedMessage = message;
            XmlInfo = xmlInfo;
        }

        public IXmlLineInfo XmlInfo { get; private set; }

        internal string UnformattedMessage
        {
            get { return _unformattedMessage ?? Message; }
        }

        static string FormatMessage(string message, IXmlLineInfo xmlinfo)
        {
            if (xmlinfo == null || !xmlinfo.HasLineInfo())
                return message;
            return string.Format("Position {0}:{1}. {2}", xmlinfo.LineNumber, xmlinfo.LinePosition, message);
        }
    }
}