/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/**
 * Copyright (c) 2014-2020,  The University of Memphis,
 *                           Regents of the University of California,
 *                           Arizona Board of Regents.
 *
 * This file is part of NLSR (Named-data Link State Routing).
 * See AUTHORS.md for complete list of NLSR authors and contributors.
 *
 * NLSR is free software: you can redistribute it and/or modify it under the terms
 * of the GNU General Public License as published by the Free Software Foundation,
 * either version 3 of the License, or (at your option) any later version.
 *
 * NLSR is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
 * PURPOSE.  See the GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along with
 * NLSR, e.g., in COPYING.md file.  If not, see <http://www.gnu.org/licenses/>.
 **/

#include "adjacency-list.hpp"
#include "common.hpp"
#include "adjacent.hpp"
#include "conf-parameter.hpp"

#include "tests/boost-test.hpp"

#include <ndn-cxx/util/dummy-client-face.hpp>

namespace nlsr {
namespace test {

BOOST_AUTO_TEST_SUITE(TestAdjacencyList)

BOOST_AUTO_TEST_CASE(Basic)
{
  const std::string ADJ_NAME_1 = "testname";
  const std::string ADJ_NAME_2 = "testname2";

//adjacent needed to test adjacency list.
  Adjacent adjacent1(ADJ_NAME_1);
  Adjacent adjacent2(ADJ_NAME_2);

  adjacent1.setLinkCost(4);
  adjacent2.setLinkCost(5);

  AdjacencyList adjacentList1;
  AdjacencyList adjacentList2;

  adjacentList1.insert(adjacent1);
  adjacentList2.insert(adjacent2);

  BOOST_CHECK_EQUAL(adjacentList1.size(), (uint32_t)1);
  BOOST_CHECK_EQUAL(adjacentList1 == adjacentList2, false);

  BOOST_CHECK(adjacentList1.isNeighbor("testname"));
  BOOST_CHECK_EQUAL(adjacentList1.isNeighbor("adjacent"), false);

  std::string n1 = "testname";
  BOOST_CHECK_EQUAL(adjacentList1.getStatusOfNeighbor(n1), Adjacent::STATUS_INACTIVE);

  adjacentList1.setStatusOfNeighbor(n1, Adjacent::STATUS_ACTIVE);
  BOOST_CHECK_EQUAL(adjacentList1.getStatusOfNeighbor(n1), Adjacent::STATUS_ACTIVE);
}

BOOST_AUTO_TEST_CASE(findAdjacentByFaceUri)
{
  ndn::FaceUri faceUri("udp4://10.0.0.1:6363");
  Adjacent adj1("/ndn/test/1", faceUri, 10, Adjacent::STATUS_INACTIVE, 0, 0);
  AdjacencyList adjList;
  adjList.insert(adj1);

  std::list<Adjacent>::iterator adjIter = adjList.findAdjacent(faceUri);
  BOOST_CHECK(adjIter != adjList.end());
}

BOOST_AUTO_TEST_CASE(AdjLsaIsBuildableWithOneNodeActive)
{
  Adjacent adjacencyA("/router/A");
  Adjacent adjacencyB("/router/B");

  adjacencyA.setStatus(Adjacent::STATUS_ACTIVE);
  adjacencyB.setStatus(Adjacent::STATUS_INACTIVE);

  AdjacencyList adjacencies;
  adjacencies.insert(adjacencyA);
  adjacencies.insert(adjacencyB);

  ndn::util::DummyClientFace face;
  ndn::KeyChain keyChain;
  ConfParameter conf(face, keyChain);
  BOOST_CHECK(adjacencies.isAdjLsaBuildable(conf.getInterestRetryNumber()));
}

BOOST_AUTO_TEST_CASE(AdjLsaIsBuildableWithAllNodesTimedOut)
{
  Adjacent adjacencyA("/router/A");
  Adjacent adjacencyB("/router/B");

  adjacencyA.setStatus(Adjacent::STATUS_INACTIVE);
  adjacencyB.setStatus(Adjacent::STATUS_INACTIVE);

  adjacencyA.setInterestTimedOutNo(HELLO_RETRIES_DEFAULT);
  adjacencyB.setInterestTimedOutNo(HELLO_RETRIES_DEFAULT);

  AdjacencyList adjacencies;
  adjacencies.insert(adjacencyA);
  adjacencies.insert(adjacencyB);

  ndn::util::DummyClientFace face;
  ndn::KeyChain keyChain;
  ConfParameter conf(face, keyChain);
  conf.setInterestRetryNumber(HELLO_RETRIES_DEFAULT);

  BOOST_CHECK(adjacencies.isAdjLsaBuildable(conf.getInterestRetryNumber()));
}

BOOST_AUTO_TEST_CASE(AdjLsaIsNotBuildable)
{
  Adjacent adjacencyA("/router/A");
  Adjacent adjacencyB("/router/B");

  adjacencyA.setStatus(Adjacent::STATUS_INACTIVE);
  adjacencyB.setStatus(Adjacent::STATUS_INACTIVE);

  adjacencyA.setInterestTimedOutNo(HELLO_RETRIES_DEFAULT);
  adjacencyB.setInterestTimedOutNo(0);

  AdjacencyList adjacencies;
  adjacencies.insert(adjacencyA);
  adjacencies.insert(adjacencyB);

  ndn::util::DummyClientFace face;
  ndn::KeyChain keyChain;
  ConfParameter conf(face, keyChain);
  conf.setInterestRetryNumber(HELLO_RETRIES_DEFAULT);

  BOOST_CHECK(!adjacencies.isAdjLsaBuildable(conf.getInterestRetryNumber()));
}

BOOST_AUTO_TEST_SUITE_END()

} // namespace test
} // namespace nlsr