using System;
using System.IO;

namespace Unosquare.Swan.Networking.Ldap {
  /// <summary>
  /// Represents an Ldap Modify Request.
  /// <pre>
  /// ModifyRequest ::= [APPLICATION 6] SEQUENCE {
  /// object          LdapDN,
  /// modification    SEQUENCE OF SEQUENCE {
  /// operation       ENUMERATED {
  /// add     (0),
  /// delete  (1),
  /// replace (2) },
  /// modification    AttributeTypeAndValues } }
  /// </pre>
  /// </summary>
  /// <seealso cref="Unosquare.Swan.Networking.Ldap.Asn1Sequence" />
  /// <seealso cref="Unosquare.Swan.Networking.Ldap.IRfcRequest" />
  internal sealed class RfcModifyRequest
      : Asn1Sequence, IRfcRequest {
    public RfcModifyRequest(String obj, Asn1SequenceOf modification)
        : base(2) {
      this.Add(obj);
      this.Add(modification);
    }

    public Asn1SequenceOf Modifications => (Asn1SequenceOf)this.Get(1);

    public override Asn1Identifier GetIdentifier() => new Asn1Identifier(LdapOperation.ModifyRequest);

    public String GetRequestDN() => ((Asn1OctetString)this.Get(0)).StringValue();
  }

  internal class RfcModifyResponse : RfcLdapResult {
    public RfcModifyResponse(Stream stream, Int32 len)
        : base(stream, len) {
    }

    public override Asn1Identifier GetIdentifier() => new Asn1Identifier(LdapOperation.ModifyResponse);
  }
}