using System;
using System.Collections;
using System.Net;
using System.Linq;
using System.Collections.Generic;
using System.Text;
using System.Security.Cryptography;

namespace SBRL.Utilities
{
	public static class Utilities
	{
		public static IEnumerable<IPAddress> GetLocalIps()
		{
			IPHostEntry entries = Dns.GetHostEntry(Dns.GetHostName());
			return (from ipAddr in entries.AddressList
			        where !IPAddress.IsLoopback(ipAddr)
			        select ipAddr).ToList();
		}

		public static string EscapeString(string str)
		{
			StringBuilder result = new StringBuilder(str);
			foreach(KeyValuePair<string, string> kvp in replacementPairs)
				result.Replace(kvp.Key, kvp.Value);

			return result.ToString();
		}

		private static Dictionary<string, string> replacementPairs = new Dictionary<string, string>()
		{
			["\n"] = @"\n",
			["\t"] = @"\t"
		};
	}
}