//
//  NumericStringSplitter.cs - provides functions for splitting a string containing numbers into string and number components
//
//  Author:
//       Michael Becker <alcexhim@gmail.com>
//
//  Copyright (c) 2011-2020 Mike Becker's Software
//
//  This program is free software: you can redistribute it and/or modify
//  it under the terms of the GNU General Public License as published by
//  the Free Software Foundation, either version 3 of the License, or
//  (at your option) any later version.
//
//  This program is distributed in the hope that it will be useful,
//  but WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//  GNU General Public License for more details.
//
//  You should have received a copy of the GNU General Public License
//  along with this program.  If not, see <http://www.gnu.org/licenses/>.

using System;

namespace MBS.Framework
{
	public struct IntStringSplitterResult
	{
		private int mvarIntegerPart;
		public int IntegerPart { get { return mvarIntegerPart; } }

		private string mvarStringPart;
		public string StringPart { get { return mvarStringPart; } }

		public IntStringSplitterResult(int integerPart, string stringPart)
		{
			mvarIntegerPart = integerPart;
			mvarStringPart = stringPart;
		}
	}
	public struct DoubleStringSplitterResult
	{
		private double mvarDoublePart;
		public double DoublePart { get { return mvarDoublePart; } }

		private string mvarStringPart;
		public string StringPart { get { return mvarStringPart; } }

		public DoubleStringSplitterResult(double doublePart, string stringPart)
		{
			mvarDoublePart = doublePart;
			mvarStringPart = stringPart;
		}
	}
	public struct DecimalStringSplitterResult
	{
		private decimal mvarDecimalPart;
		public decimal DecimalPart { get { return mvarDecimalPart; } }

		private string mvarStringPart;
		public string StringPart { get { return mvarStringPart; } }

		public DecimalStringSplitterResult(decimal doublePart, string stringPart)
		{
			mvarDecimalPart = doublePart;
			mvarStringPart = stringPart;
		}
	}
	public static class NumericStringSplitter
	{
		public static IntStringSplitterResult SplitIntStringParts(this string value, int start = 0)
		{
			string intval = String.Empty;
			string strval = String.Empty;

			int i = start;
			for (i = start; i < value.Length; i++)
			{
				if (value[i] >= '0' && value[i] <= '9')
				{
					intval += value[i];
				}
				else
				{
					break;
				}
			}
			strval = value.Substring(i);

			int realintval = Int32.Parse(intval);
			return new IntStringSplitterResult(realintval, strval);
		}
		public static DoubleStringSplitterResult SplitDoubleStringParts(this string value, int start = 0)
		{
			string intval = String.Empty;
			string strval = String.Empty;

			int i = start;
			for (i = start; i < value.Length; i++)
			{
				if (value[i] == '.' || (value[i] >= '0' && value[i] <= '9'))
				{
					intval += value[i];
				}
				else
				{
					break;
				}
			}
			strval = value.Substring(i);

			double realintval = Double.Parse(intval);
			return new DoubleStringSplitterResult(realintval, strval);
		}
		public static DecimalStringSplitterResult SplitDecimalStringParts(this string value, int start = 0)
		{
			string intval = String.Empty;
			string strval = String.Empty;

			int i = start;
			for (i = start; i < value.Length; i++)
			{
				if (value[i] == '.' || (value[i] >= '0' && value[i] <= '9'))
				{
					intval += value[i];
				}
				else
				{
					break;
				}
			}
			strval = value.Substring(i);

			decimal realintval = Decimal.Parse(intval);
			return new DecimalStringSplitterResult(realintval, strval);
		}
	}
}