using System;
using System.Collections.Generic;
using System.Linq;
using System.Security.Cryptography;
using System.Text;
using System.Threading.Tasks;

namespace Tango.Core.Cryptography
{
    public class MachineLevelCryptographer : ICryptographer
    {
        public string Encrypt(string text)
        {
            return Encrypt(text, "Twine1357");
        }

        public string Encrypt(string text, string key)
        {
            return Convert.ToBase64String(
              ProtectedData.Protect(
                  Encoding.UTF8.GetBytes(text)
                  , key != null ? Encoding.UTF8.GetBytes(key) : null
                  , DataProtectionScope.LocalMachine));
        }

        public string Decrypt(string text)
        {
            return Decrypt(text, "Twine1357");
        }

        public string Decrypt(string text, string key)
        {
            return Encoding.UTF8.GetString(
                ProtectedData.Unprotect(
                    Convert.FromBase64String(text)
                    , key != null ? Encoding.UTF8.GetBytes(key) : null
                    , DataProtectionScope.LocalMachine));
        }
    }
}