using System.Security;

namespace Gremlin_BlazorServer.Data.DBClasses
{
	internal class Encryption
	{
		// private static readonly byte[] entropy = System.Text.Encoding.Unicode.GetBytes("My super power encryption made nearly by my own");

		//public static string EncryptString(SecureString input)
		//{
		//	byte[] encryptedData = System.Security.Cryptography.ProtectedData.Protect(
		//		System.Text.Encoding.Unicode.GetBytes(ToInsecureString(input)),
		//		entropy,
		//		System.Security.Cryptography.DataProtectionScope.CurrentUser);
		//	return Convert.ToBase64String(encryptedData);
		//}

		//public static SecureString DecryptString(string encryptedData)
		//{
		//	try
		//	{
		//		byte[] decryptedData = System.Security.Cryptography.ProtectedData.Unprotect(
		//			Convert.FromBase64String(encryptedData),
		//			entropy,
		//			System.Security.Cryptography.DataProtectionScope.CurrentUser);
		//		return ToSecureString(System.Text.Encoding.Unicode.GetString(decryptedData));
		//	}
		//	catch
		//	{
		//		return new SecureString();
		//	}
		//}

		public static SecureString ToSecureString(string input)
		{
			SecureString secure = new();
			foreach (char c in input)
			{
				secure.AppendChar(c);
			}
			secure.MakeReadOnly();
			return secure;
		}

		public static string ToInsecureString(SecureString input)
		{
			string returnValue;
			IntPtr ptr = System.Runtime.InteropServices.Marshal.SecureStringToBSTR(input);
			try
			{
				returnValue = System.Runtime.InteropServices.Marshal.PtrToStringBSTR(ptr);
			}
			finally
			{
				System.Runtime.InteropServices.Marshal.ZeroFreeBSTR(ptr);
			}
			return returnValue;
		}
	}
}