using System;
using System.Collections.Generic;
using System.Diagnostics;

namespace NumberSystemsDLL
{
    public class NumberSystems
	{
		/// <summary>
		/// Конвертирование 10 систему в 16-ричную
		/// </summary>
		/// <param name="str"></param>
		/// <returns></returns>
		public string Convert10To16(int numbers)
		{
			TextWriterTraceListener outLog = new TextWriterTraceListener("log.txt");
			Trace.Listeners.Add(outLog);
			Trace.AutoFlush = true;
			string answer = "";
			int ost = 0;
			while (numbers > 0) {
				ost = numbers % 16;
				numbers = numbers / 16;
				answer = numberToLetter[ost] + answer;
				Trace.WriteLine("Trace: " + answer);
				Debug.WriteLine("Debug: " + answer);
				Trace.WriteIf((answer == "1"), "WriteIf = " + answer);
			}
			/*Debugger.Launch();*/
			return answer;
		}

		/// <summary>
		/// Конвертирование 16 систему в 10-ричную
		/// </summary>
		/// <param name="str"></param>
		/// <returns></returns>
		public int Convert16To10(string str)
		{
			int answer = 0;
			for (int i = 0; i < str.Length; i++)
			{
				char ost = str[i];
				int power = (str.Length - 1) - i;
				answer += letterToNumber[ost] * (int) Math.Pow(16, power);
			}
			return answer;
		}

		/// <summary>
		/// Перевод из числа в букву
		/// </summary>
		public Dictionary<int, char> numberToLetter = new Dictionary<int, char>()
		{
			{ 1, '1'},
			{ 2, '2'},
			{ 3, '3'},
			{ 4, '4'},
			{ 5, '5'},
			{ 6, '6'},
			{ 7, '7'},
			{ 8, '8'},
			{ 9, '9'},
			{ 10, 'A'},
			{ 11, 'B'},
			{ 12, 'C'},
			{ 13, 'D'},
			{ 14, 'E'},
			{ 15, 'F'}
		};

		/// <summary>
		/// Перевод из буквы в число
		/// </summary>
		public Dictionary<char, int> letterToNumber = new Dictionary<char, int>()
		{
			{ '1', 1},
			{ '2', 2},
			{ '3', 3},
			{ '4', 4},
			{ '5', 5},
			{ '6', 6},
			{ '7', 7},
			{ '8', 8},
			{ '9', 9},
			{ 'A', 10},
			{ 'B', 11},
			{ 'C', 12},
			{ 'D', 13},
			{ 'E', 14},
			{ 'F', 15}
		};

	}
}