/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
 * Copyright (c) 2014-2024,  Regents of the University of California,
 *                           Arizona Board of Regents,
 *                           Colorado State University,
 *                           University Pierre & Marie Curie, Sorbonne University,
 *                           Washington University in St. Louis,
 *                           Beijing Institute of Technology,
 *                           The University of Memphis.
 *
 * This file is part of NFD (Named Data Networking Forwarding Daemon).
 * See AUTHORS.md for complete list of NFD authors and contributors.
 *
 * NFD 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.
 *
 * NFD 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
 * NFD, e.g., in COPYING.md file.  If not, see <http://www.gnu.org/licenses/>.
 */

#include "face/unix-stream-factory.hpp"

#include "face-system-fixture.hpp"
#include "factory-test-common.hpp"

#include <filesystem>

namespace nfd::tests {

using UnixStreamFactoryFixture = FaceSystemFactoryFixture<face::UnixStreamFactory>;

BOOST_AUTO_TEST_SUITE(Face)
BOOST_FIXTURE_TEST_SUITE(TestUnixStreamFactory, UnixStreamFactoryFixture)

BOOST_AUTO_TEST_SUITE(ProcessConfig)

BOOST_AUTO_TEST_CASE(AbsolutePath)
{
  const std::string CONFIG = R"CONFIG(
    face_system
    {
      unix
      {
        path /tmp/nfd-test.sock
      }
    }
  )CONFIG";

  parseConfig(CONFIG, true);
  parseConfig(CONFIG, false);

  BOOST_REQUIRE_EQUAL(factory.getChannels().size(), 1);
  BOOST_TEST(factory.getChannels().front()->isListening());

  const auto& uri = factory.getChannels().front()->getUri();
  BOOST_TEST(uri.getScheme() == "unix");
  BOOST_TEST(uri.getPath() == std::filesystem::canonical("/tmp/nfd-test.sock"));
}

BOOST_AUTO_TEST_CASE(RelativePath)
{
  const std::string CONFIG = R"CONFIG(
    face_system
    {
      unix
      {
        path nfd-test.sock
      }
    }
  )CONFIG";

  parseConfig(CONFIG, true);
  parseConfig(CONFIG, false);

  BOOST_REQUIRE_EQUAL(factory.getChannels().size(), 1);
  BOOST_TEST(factory.getChannels().front()->isListening());

  const auto& uri = factory.getChannels().front()->getUri();
  BOOST_TEST(uri.getScheme() == "unix");
  BOOST_TEST(uri.getPath() == std::filesystem::canonical("nfd-test.sock"));
}

BOOST_AUTO_TEST_CASE(Omitted)
{
  const std::string CONFIG = R"CONFIG(
    face_system
    {
    }
  )CONFIG";

  parseConfig(CONFIG, true);
  parseConfig(CONFIG, false);

  BOOST_CHECK_EQUAL(factory.getChannels().size(), 0);
}

BOOST_AUTO_TEST_CASE(UnknownOption)
{
  const std::string CONFIG = R"CONFIG(
    face_system
    {
      unix
      {
        hello
      }
    }
  )CONFIG";

  BOOST_CHECK_THROW(parseConfig(CONFIG, true), ConfigFile::Error);
  BOOST_CHECK_THROW(parseConfig(CONFIG, false), ConfigFile::Error);
}

BOOST_AUTO_TEST_SUITE_END() // ProcessConfig

const std::string CHANNEL_PATH1("unix-stream-test.1.sock");
const std::string CHANNEL_PATH2("unix-stream-test.2.sock");

BOOST_AUTO_TEST_CASE(GetChannels)
{
  BOOST_CHECK_EQUAL(factory.getChannels().empty(), true);

  std::set<std::string> expected;
  expected.insert(factory.createChannel(CHANNEL_PATH1)->getUri().toString());
  expected.insert(factory.createChannel(CHANNEL_PATH2)->getUri().toString());
  checkChannelListEqual(factory, expected);
}

BOOST_AUTO_TEST_CASE(CreateChannel)
{
  auto channel1 = factory.createChannel("./" + CHANNEL_PATH1); // test path normalization
  auto channel1a = factory.createChannel(CHANNEL_PATH1);
  auto channel1b = factory.createChannel(std::filesystem::absolute(CHANNEL_PATH1));
  auto channel1c = factory.createChannel("foo//../" + CHANNEL_PATH1);
  BOOST_CHECK_EQUAL(channel1, channel1a);
  BOOST_CHECK_EQUAL(channel1, channel1b);
  BOOST_CHECK_EQUAL(channel1, channel1c);
  BOOST_CHECK_EQUAL(factory.getChannels().size(), 1);

  const auto& uri = channel1->getUri();
  BOOST_TEST_INFO_SCOPE(uri);
  BOOST_CHECK_EQUAL(uri.getScheme(), "unix");
  BOOST_CHECK_EQUAL(uri.getHost(), "");
  BOOST_CHECK_EQUAL(uri.getPort(), "");
  std::filesystem::path path1(uri.getPath());
  BOOST_TEST(path1.filename() == CHANNEL_PATH1);
  BOOST_TEST(path1.is_absolute()); // path should always be absolute
  BOOST_TEST(path1.lexically_normal() == path1); // path should be in normal form

  auto channel2 = factory.createChannel(CHANNEL_PATH2);
  BOOST_CHECK_NE(channel1, channel2);
  BOOST_CHECK_EQUAL(factory.getChannels().size(), 2);
}

BOOST_AUTO_TEST_CASE(CreateFace)
{
  createFace(factory,
             FaceUri("unix:///var/run/nfd.sock"),
             {},
             {ndn::nfd::FACE_PERSISTENCY_ON_DEMAND, {}, {}, {}, false, false, false},
             {CreateFaceExpectedResult::FAILURE, 406, "Unsupported protocol"});

  createFace(factory,
             FaceUri("unix:///var/run/nfd.sock"),
             {},
             {ndn::nfd::FACE_PERSISTENCY_PERSISTENT, {}, {}, {}, false, false, false},
             {CreateFaceExpectedResult::FAILURE, 406, "Unsupported protocol"});

  createFace(factory,
             FaceUri("unix:///var/run/nfd.sock"),
             {},
             {ndn::nfd::FACE_PERSISTENCY_PERMANENT, {}, {}, {}, false, false, false},
             {CreateFaceExpectedResult::FAILURE, 406, "Unsupported protocol"});
}

BOOST_AUTO_TEST_SUITE_END() // TestUnixStreamFactory
BOOST_AUTO_TEST_SUITE_END() // Face

} // namespace nfd::tests