using System.Text;
using IdentityShroud.Core.Model;
using IdentityShroud.Core.Security;

namespace IdentityShroud.Core.Contracts;

public interface IDataEncryptionService
{
    EncryptedValue Encrypt(RealmDek dek, ReadOnlySpan<byte> plain);
    byte[] Decrypt(IReadOnlyList<RealmDek> deks, EncryptedValue input);
}

public static class DataEncryptionServiceExtensions
{
    public static string DecryptUtf8ToString(
        this IDataEncryptionService des,
        IReadOnlyList<RealmDek> deks, 
        EncryptedValue input)
    {
        return Encoding.UTF8.GetString(des.Decrypt(deks, input));
    }
}