// Copyright 2011 Mark Cavage, Inc.  All rights reserved.

var assert = require('assert');
var util = require('util');

var asn1 = require('asn1');

var LDAPMessage = require('./message');
var LDAPResult = require('./result');

var dn = require('../dn');
var Attribute = require('../attribute');
var Protocol = require('../protocol');



///--- Globals

var Ber = asn1.Ber;



///--- API

function ExtendedRequest(options) {
  if (options) {
    if (typeof(options) !== 'object')
      throw new TypeError('options must be an object');
    if (options.requestName && typeof(options.requestName) !== 'string')
      throw new TypeError('options.requestName must be a string');
    if (options.requestValue && typeof(options.requestValue) !== 'string')
      throw new TypeError('options.requestValue must be a string');
  } else {
    options = {};
  }

  options.protocolOp = Protocol.LDAP_REQ_EXTENSION;
  LDAPMessage.call(this, options);

  this.requestName = options.requestName || '';
  this.requestValue = options.requestValue || undefined;

  this.__defineGetter__('type', function() { return 'ExtendedRequest'; });
  this.__defineGetter__('_dn', function() { return this.requestName; });
  this.__defineGetter__('name', function() {
    return this.requestName;
  });
  this.__defineGetter__('value', function() {
    return this.requestValue;
  });
  this.__defineSetter__('name', function(name) {
    if (typeof(name) !== 'string')
      throw new TypeError('name must be a string');

    this.requestName = name;
  });
  this.__defineSetter__('value', function(val) {
    if (typeof(val) !== 'string')
      throw new TypeError('value must be a string');

    this.requestValue = val;
  });
}
util.inherits(ExtendedRequest, LDAPMessage);
module.exports = ExtendedRequest;


ExtendedRequest.prototype._parse = function(ber) {
  assert.ok(ber);

  this.requestName = ber.readString(0x80);
  if (ber.peek() === 0x81)
    this.requestValue = ber.readString(0x81);

  return true;
};


ExtendedRequest.prototype._toBer = function(ber) {
  assert.ok(ber);

  ber.writeString(this.requestName, 0x80);
  if (this.requestValue)
    ber.writeString(this.requestValue, 0x81);

  return ber;
};


ExtendedRequest.prototype._json = function(j) {
  assert.ok(j);

  j.requestName = this.requestName;
  j.requestValue = this.requestValue;

  return j;
};