/*
 * Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The OpenAirInterface Software Alliance licenses this file to You under
 * the OAI Public License, Version 1.1  (the "License"); you may not use this file
 * except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.openairinterface.org/?page_id=698
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *-------------------------------------------------------------------------------
 * For more information about the OpenAirInterface (OAI) Software Alliance:
 *      contact@openairinterface.org
 */

/*! \file
 \brief
 \author  Keliang DU, BUPT
 \date 2020
 \email: contact@openairinterface.org
 */

#include "UE_Status.hpp"
#include "logger.hpp"
using namespace nas;


//------------------------------------------------------------------------------
UE_Status::UE_Status(uint8_t iei) {
  _iei = iei;
}

//------------------------------------------------------------------------------
UE_Status::UE_Status(const uint8_t iei, bool n1, bool s1) {
  _iei = iei;
  S1 = s1;
  N1 = n1;
}

//------------------------------------------------------------------------------
UE_Status::UE_Status() {
}

//------------------------------------------------------------------------------
UE_Status::~UE_Status() {
}

//------------------------------------------------------------------------------
void UE_Status::setS1(bool value) {
  S1 = value;
}

//------------------------------------------------------------------------------
void UE_Status::setN1(bool value) {
  N1 = value;
}

//------------------------------------------------------------------------------
bool UE_Status::getS1() {
  return S1;
}

//------------------------------------------------------------------------------
bool UE_Status::getN1() {
  return N1;
}

//------------------------------------------------------------------------------
int UE_Status::encode2buffer(uint8_t *buf, int len) {
  Logger::nas_mm().debug("encoding UE_Status iei(0x%x)", _iei);
  if (len < 3) {
    //	Logger::nas_mm().error("len is less than %d", length);
    return 0;
  }
  int encoded_size = 0;
  if (_iei) {
    *(buf + encoded_size) = _iei;
    encoded_size++;
    *(buf + encoded_size) = 3 - 2;
    encoded_size++;
    *(buf + encoded_size) = 0x00 | S1 | N1 << 1;
    encoded_size++;
  } else {
    //	*(buf + encoded_size) = length - 1; encoded_size++;
    //	*(buf + encoded_size) = _value; encoded_size++; encoded_size++;
  }
  Logger::nas_mm().debug("encoded UE_Status len(%d)", encoded_size);
  return encoded_size;
}

//------------------------------------------------------------------------------
int UE_Status::decodefrombuffer(uint8_t *buf, int len, bool is_option) {
  Logger::nas_mm().debug("decoding UE_Status iei(0x%x)", *buf);
  int decoded_size = 0;
  if (is_option) {
    decoded_size++;
  }
  S1 = 0;
  N1 = 0;
  //length = *(buf + decoded_size);
  decoded_size++;
  N1 = *(buf + decoded_size) & 0x02;
  S1 = *(buf + decoded_size) & 0x01;
  decoded_size++;
  Logger::nas_mm().debug("decoded UE_Status N1(0x%x) S1(0x%x)", N1, S1);
  Logger::nas_mm().debug("decoded UE_Status len(%d)", decoded_size);
  return decoded_size;
}

