/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
 * Copyright (c) 2014-2019,  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 "nfdc/rib-module.hpp"

#include "execute-command-fixture.hpp"
#include "status-fixture.hpp"

namespace nfd {
namespace tools {
namespace nfdc {
namespace tests {

BOOST_AUTO_TEST_SUITE(Nfdc)
BOOST_FIXTURE_TEST_SUITE(TestRibModule, StatusFixture<RibModule>)

class RouteListFixture : public ExecuteCommandFixture
{
protected:
  bool
  respondRibDataset(const Interest& interest)
  {
    if (!Name("/localhost/nfd/rib/list").isPrefixOf(interest.getName())) {
      return false;
    }

    RibEntry entry1;
    entry1.setName("/5BBmTevRJ");
    entry1.addRoute(Route()
                      .setFaceId(6720)
                      .setOrigin(ndn::nfd::ROUTE_ORIGIN_CLIENT)
                      .setCost(2956)
                      .setFlags(ndn::nfd::ROUTE_FLAG_CHILD_INHERIT | ndn::nfd::ROUTE_FLAG_CAPTURE)
                      .setExpirationPeriod(29950035_ms));
    entry1.addRoute(Route()
                      .setFaceId(6720)
                      .setOrigin(ndn::nfd::ROUTE_ORIGIN_STATIC)
                      .setCost(425)
                      .setFlags(ndn::nfd::ROUTE_FLAGS_NONE));
    entry1.addRoute(Route()
                      .setFaceId(8599)
                      .setOrigin(ndn::nfd::ROUTE_ORIGIN_STATIC)
                      .setCost(9140)
                      .setFlags(ndn::nfd::ROUTE_FLAG_CHILD_INHERIT));

    RibEntry entry2;
    entry2.setName("/aDPTKCio");
    entry2.addRoute(Route()
                      .setFaceId(31066)
                      .setOrigin(ndn::nfd::ROUTE_ORIGIN_CLIENT)
                      .setCost(4617)
                      .setFlags(ndn::nfd::ROUTE_FLAG_CAPTURE));

    this->sendDataset(interest.getName(), entry1, entry2);
    return true;
  }
};

BOOST_FIXTURE_TEST_SUITE(ListShowCommand, RouteListFixture)

const std::string NOFILTER_OUTPUT = std::string(R"TEXT(
prefix=/5BBmTevRJ nexthop=6720 origin=client cost=2956 flags=child-inherit|capture expires=29950s
prefix=/5BBmTevRJ nexthop=6720 origin=static cost=425 flags=none expires=never
prefix=/5BBmTevRJ nexthop=8599 origin=static cost=9140 flags=child-inherit expires=never
prefix=/aDPTKCio nexthop=31066 origin=client cost=4617 flags=capture expires=never
)TEXT").substr(1);

BOOST_AUTO_TEST_CASE(ListNoFilter)
{
  this->processInterest = [this] (const Interest& interest) {
    BOOST_CHECK(this->respondRibDataset(interest));
  };

  this->execute("route");
  BOOST_CHECK_EQUAL(exitCode, 0);
  BOOST_CHECK(out.is_equal(NOFILTER_OUTPUT));
  BOOST_CHECK(err.is_empty());
}

const std::string NEXTHOP_OUTPUT = std::string(R"TEXT(
prefix=/5BBmTevRJ nexthop=6720 origin=client cost=2956 flags=child-inherit|capture expires=29950s
prefix=/5BBmTevRJ nexthop=6720 origin=static cost=425 flags=none expires=never
prefix=/aDPTKCio nexthop=31066 origin=client cost=4617 flags=capture expires=never
)TEXT").substr(1);

BOOST_AUTO_TEST_CASE(ListByNexthop)
{
  this->processInterest = [this] (const Interest& interest) {
    BOOST_CHECK(this->respondFaceQuery(interest) || this->respondRibDataset(interest));
  };

  this->execute("route list udp4://225.131.75.231:56363");
  BOOST_CHECK_EQUAL(exitCode, 0);
  BOOST_CHECK(out.is_equal(NEXTHOP_OUTPUT));
  BOOST_CHECK(err.is_empty());
}

const std::string ORIGIN_OUTPUT = std::string(R"TEXT(
prefix=/5BBmTevRJ nexthop=6720 origin=static cost=425 flags=none expires=never
prefix=/5BBmTevRJ nexthop=8599 origin=static cost=9140 flags=child-inherit expires=never
)TEXT").substr(1);

BOOST_AUTO_TEST_CASE(ListByOriginNumeric)
{
  this->processInterest = [this] (const Interest& interest) {
    BOOST_CHECK(this->respondRibDataset(interest));
  };

  this->execute("route list origin 255");
  BOOST_CHECK_EQUAL(exitCode, 0);
  BOOST_CHECK(out.is_equal(ORIGIN_OUTPUT));
  BOOST_CHECK(err.is_empty());
}

BOOST_AUTO_TEST_CASE(ListByOriginString)
{
  this->processInterest = [this] (const Interest& interest) {
    BOOST_CHECK(this->respondRibDataset(interest));
  };

  this->execute("route list origin static");
  BOOST_CHECK_EQUAL(exitCode, 0);
  BOOST_CHECK(out.is_equal(ORIGIN_OUTPUT));
  BOOST_CHECK(err.is_empty());
}

const std::string PREFIX_OUTPUT = std::string(R"TEXT(
prefix=/5BBmTevRJ nexthop=6720 origin=client cost=2956 flags=child-inherit|capture expires=29950s
prefix=/5BBmTevRJ nexthop=6720 origin=static cost=425 flags=none expires=never
prefix=/5BBmTevRJ nexthop=8599 origin=static cost=9140 flags=child-inherit expires=never
)TEXT").substr(1);

BOOST_AUTO_TEST_CASE(ShowByPrefix)
{
  this->processInterest = [this] (const Interest& interest) {
    BOOST_CHECK(this->respondRibDataset(interest));
  };

  this->execute("route show 5BBmTevRJ");
  BOOST_CHECK_EQUAL(exitCode, 0);
  BOOST_CHECK(out.is_equal(PREFIX_OUTPUT));
  BOOST_CHECK(err.is_empty());
}

BOOST_AUTO_TEST_CASE(FaceNotExist)
{
  this->processInterest = [this] (const Interest& interest) {
    BOOST_CHECK(this->respondFaceQuery(interest));
  };

  this->execute("route list 23728");
  BOOST_CHECK_EQUAL(exitCode, 3);
  BOOST_CHECK(out.is_empty());
  BOOST_CHECK(err.is_equal("Face not found\n"));
}

BOOST_AUTO_TEST_CASE(RouteNotExist)
{
  this->processInterest = [this] (const Interest& interest) {
    BOOST_CHECK(this->respondFaceQuery(interest) || this->respondRibDataset(interest));
  };

  this->execute("route list 10156");
  BOOST_CHECK_EQUAL(exitCode, 6);
  BOOST_CHECK(out.is_empty());
  BOOST_CHECK(err.is_equal("Route not found\n"));
}

BOOST_AUTO_TEST_CASE(ErrorDataset)
{
  this->processInterest = nullptr; // no response to dataset

  this->execute("route list");
  BOOST_CHECK_EQUAL(exitCode, 1);
  BOOST_CHECK(out.is_empty());
  BOOST_CHECK(err.is_equal("Error 10060 when fetching RIB dataset: Timeout exceeded\n"));
}

BOOST_AUTO_TEST_SUITE_END() // ListShowCommand

BOOST_FIXTURE_TEST_SUITE(AddCommand, ExecuteCommandFixture)

BOOST_AUTO_TEST_CASE(NormalByFaceId)
{
  this->processInterest = [this] (const Interest& interest) {
    if (this->respondFaceQuery(interest)) {
      return;
    }

    ControlParameters req = MOCK_NFD_MGMT_REQUIRE_COMMAND_IS("/localhost/nfd/rib/register");
    ndn::nfd::RibRegisterCommand cmd;
    cmd.validateRequest(req);
    cmd.applyDefaultsToRequest(req);
    BOOST_CHECK_EQUAL(req.getName(), "/vxXoEaWeDB");
    BOOST_CHECK_EQUAL(req.getFaceId(), 10156);
    BOOST_CHECK_EQUAL(req.getOrigin(), ndn::nfd::ROUTE_ORIGIN_STATIC);
    BOOST_CHECK_EQUAL(req.getCost(), 0);
    BOOST_CHECK_EQUAL(req.getFlags(), ndn::nfd::ROUTE_FLAGS_NONE);
    BOOST_CHECK_EQUAL(req.hasExpirationPeriod(), false);

    this->succeedCommand(interest, req);
  };

  this->execute("route add /vxXoEaWeDB 10156 no-inherit");
  BOOST_CHECK_EQUAL(exitCode, 0);
  BOOST_CHECK(out.is_equal("route-add-accepted prefix=/vxXoEaWeDB nexthop=10156 origin=static "
                           "cost=0 flags=none expires=never\n"));
  BOOST_CHECK(err.is_empty());
}

BOOST_AUTO_TEST_CASE(NormalByFaceUri)
{
  this->processInterest = [this] (const Interest& interest) {
    if (this->respondFaceQuery(interest)) {
      return;
    }

    ControlParameters req = MOCK_NFD_MGMT_REQUIRE_COMMAND_IS("/localhost/nfd/rib/register");
    ndn::nfd::RibRegisterCommand cmd;
    cmd.validateRequest(req);
    cmd.applyDefaultsToRequest(req);
    BOOST_CHECK_EQUAL(req.getName(), "/FLQAsaYnYf");
    BOOST_CHECK_EQUAL(req.getFaceId(), 2249);
    BOOST_CHECK_EQUAL(req.getOrigin(), 17591);
    BOOST_CHECK_EQUAL(req.getCost(), 702);
    BOOST_CHECK_EQUAL(req.getFlags(), ndn::nfd::ROUTE_FLAG_CHILD_INHERIT |
                                      ndn::nfd::ROUTE_FLAG_CAPTURE);
    BOOST_REQUIRE_EQUAL(req.hasExpirationPeriod(), true);
    BOOST_REQUIRE_EQUAL(req.getExpirationPeriod(), 727411987_ms);

    ControlParameters resp = req;
    resp.setExpirationPeriod(727411154_ms); // server side may change expiration
    this->succeedCommand(interest, resp);
  };

  this->execute("route add /FLQAsaYnYf tcp4://32.121.182.82:6363 "
                "origin 17591 cost 702 capture expires 727411987");
  BOOST_CHECK_EQUAL(exitCode, 0);
  BOOST_CHECK(out.is_equal("route-add-accepted prefix=/FLQAsaYnYf nexthop=2249 origin=17591 "
                           "cost=702 flags=child-inherit|capture expires=727411154ms\n"));
  BOOST_CHECK(err.is_empty());
}

BOOST_AUTO_TEST_CASE(FaceNotExist)
{
  this->processInterest = [this] (const Interest& interest) {
    BOOST_CHECK(this->respondFaceQuery(interest));
  };

  this->execute("route add /GJiKDus5i 23728");
  BOOST_CHECK_EQUAL(exitCode, 3);
  BOOST_CHECK(out.is_empty());
  BOOST_CHECK(err.is_equal("Face not found\n"));
}

BOOST_AUTO_TEST_CASE(Ambiguous)
{
  this->processInterest = [this] (const Interest& interest) {
    BOOST_CHECK(this->respondFaceQuery(interest));
  };

  this->execute("route add /BQqjjnVsz udp4://225.131.75.231:56363");
  BOOST_CHECK_EQUAL(exitCode, 5);
  BOOST_CHECK(out.is_empty());
  BOOST_CHECK(err.is_equal("Multiple faces match specified remote FaceUri. "
                           "Re-run the command with a FaceId: "
                           "6720 (local=udp4://202.83.168.28:56363), "
                           "31066 (local=udp4://25.90.26.32:56363)\n"));
}

BOOST_AUTO_TEST_CASE(ErrorCanonization)
{
  this->execute("route add /bxJfGsVtDt udp6://32.38.164.64:10445");
  BOOST_CHECK_EQUAL(exitCode, 4);
  BOOST_CHECK(out.is_empty());
  BOOST_CHECK(err.is_equal("Error during remote FaceUri canonization: "
                           "IPv4/v6 mismatch\n"));
}

BOOST_AUTO_TEST_CASE(ErrorDataset)
{
  this->processInterest = nullptr; // no response to dataset or command

  this->execute("route add /q1Qf7go7 udp://159.242.33.78");
  BOOST_CHECK_EQUAL(exitCode, 1);
  BOOST_CHECK(out.is_empty());
  BOOST_CHECK(err.is_equal("Error 10060 when querying face: Timeout exceeded\n"));
}

BOOST_AUTO_TEST_CASE(ErrorCommand)
{
  this->processInterest = [this] (const Interest& interest) {
    if (this->respondFaceQuery(interest)) {
      return;
    }

    MOCK_NFD_MGMT_REQUIRE_COMMAND_IS("/localhost/nfd/rib/register");
    // no response to command
  };

  this->execute("route add /bYiMbEuE 10156");
  BOOST_CHECK_EQUAL(exitCode, 1);
  BOOST_CHECK(out.is_empty());
  BOOST_CHECK(err.is_equal("Error 10060 when adding route: request timed out\n"));
}

BOOST_AUTO_TEST_SUITE_END() // AddCommand

BOOST_FIXTURE_TEST_SUITE(RemoveCommand, ExecuteCommandFixture)

BOOST_AUTO_TEST_CASE(NormalByFaceId)
{
  this->processInterest = [this] (const Interest& interest) {
    if (this->respondFaceQuery(interest)) {
      return;
    }

    ControlParameters req = MOCK_NFD_MGMT_REQUIRE_COMMAND_IS("/localhost/nfd/rib/unregister");
    ndn::nfd::RibUnregisterCommand cmd;
    cmd.validateRequest(req);
    cmd.applyDefaultsToRequest(req);
    BOOST_CHECK_EQUAL(req.getName(), "/2B5NUGjpt");
    BOOST_CHECK_EQUAL(req.getFaceId(), 10156);
    BOOST_CHECK_EQUAL(req.getOrigin(), ndn::nfd::ROUTE_ORIGIN_STATIC);

    this->succeedCommand(interest, req);
  };

  this->execute("route remove /2B5NUGjpt 10156");
  BOOST_CHECK_EQUAL(exitCode, 0);
  BOOST_CHECK(out.is_equal("route-removed prefix=/2B5NUGjpt nexthop=10156 origin=static\n"));
  BOOST_CHECK(err.is_empty());
}

BOOST_AUTO_TEST_CASE(NormalByFaceUri)
{
  this->processInterest = [this] (const Interest& interest) {
    if (this->respondFaceQuery(interest)) {
      return;
    }

    ControlParameters req = MOCK_NFD_MGMT_REQUIRE_COMMAND_IS("/localhost/nfd/rib/unregister");
    ndn::nfd::RibUnregisterCommand cmd;
    cmd.validateRequest(req);
    cmd.applyDefaultsToRequest(req);
    BOOST_CHECK_EQUAL(req.getName(), "/wHdNn0BtUF");
    BOOST_CHECK_EQUAL(req.getFaceId(), 2249);
    BOOST_CHECK_EQUAL(req.getOrigin(), 15246);

    this->succeedCommand(interest, req);
  };

  this->execute("route remove /wHdNn0BtUF tcp4://32.121.182.82:6363 origin 15246");
  BOOST_CHECK_EQUAL(exitCode, 0);
  BOOST_CHECK(out.is_equal("route-removed prefix=/wHdNn0BtUF nexthop=2249 origin=15246\n"));
  BOOST_CHECK(err.is_empty());
}

BOOST_AUTO_TEST_CASE(MultipleFaces)
{
  std::set<uint64_t> faceIds{6720, 31066};
  this->processInterest = [this, &faceIds] (const Interest& interest) {
    if (this->respondFaceQuery(interest)) {
      return;
    }

    ControlParameters req = MOCK_NFD_MGMT_REQUIRE_COMMAND_IS("/localhost/nfd/rib/unregister");
    ndn::nfd::RibUnregisterCommand cmd;
    cmd.validateRequest(req);
    cmd.applyDefaultsToRequest(req);
    BOOST_CHECK_EQUAL(req.getName(), "/nm5y8X8b2");
    BOOST_CHECK_MESSAGE(faceIds.erase(req.getFaceId()), "expected face " + to_string(req.getFaceId()));
    BOOST_CHECK_EQUAL(req.getOrigin(), ndn::nfd::ROUTE_ORIGIN_STATIC);

    this->succeedCommand(interest, req);
  };

  this->execute("route remove /nm5y8X8b2 udp4://225.131.75.231:56363");
  BOOST_CHECK(faceIds.empty());
  BOOST_CHECK_EQUAL(exitCode, 0);
  BOOST_CHECK(out.is_equal("route-removed prefix=/nm5y8X8b2 nexthop=6720 origin=static\n"
                           "route-removed prefix=/nm5y8X8b2 nexthop=31066 origin=static\n"));
  BOOST_CHECK(err.is_empty());
}

BOOST_AUTO_TEST_CASE(FaceNotExist)
{
  this->processInterest = [this] (const Interest& interest) {
    BOOST_CHECK(this->respondFaceQuery(interest));
  };

  this->execute("route remove /HeGRjzwFM 23728");
  BOOST_CHECK_EQUAL(exitCode, 3);
  BOOST_CHECK(out.is_empty());
  BOOST_CHECK(err.is_equal("Face not found\n"));
}

BOOST_AUTO_TEST_CASE(ErrorDataset)
{
  this->processInterest = nullptr; // no response to dataset or command

  this->execute("route remove /YX4xQQN3v5 udp://26.97.248.3");
  BOOST_CHECK_EQUAL(exitCode, 1);
  BOOST_CHECK(out.is_empty());
  BOOST_CHECK(err.is_equal("Error 10060 when querying face: Timeout exceeded\n"));
}

BOOST_AUTO_TEST_CASE(ErrorCommand)
{
  this->processInterest = [this] (const Interest& interest) {
    if (this->respondFaceQuery(interest)) {
      return;
    }

    MOCK_NFD_MGMT_REQUIRE_COMMAND_IS("/localhost/nfd/rib/unregister");
    // no response to command
  };

  this->execute("route remove /mvGRoxD2 10156");
  BOOST_CHECK_EQUAL(exitCode, 1);
  BOOST_CHECK(out.is_empty());
  BOOST_CHECK(err.is_equal("Error 10060 when removing route: request timed out\n"));
}

BOOST_AUTO_TEST_SUITE_END() // RemoveCommand

const std::string STATUS_XML = stripXmlSpaces(R"XML(
  <rib>
    <ribEntry>
      <prefix>/</prefix>
      <routes>
        <route>
          <faceId>262</faceId>
          <origin>static</origin>
          <cost>9</cost>
          <flags>
            <ribCapture/>
          </flags>
        </route>
        <route>
          <faceId>272</faceId>
          <origin>static</origin>
          <cost>50</cost>
          <flags/>
        </route>
        <route>
          <faceId>274</faceId>
          <origin>static</origin>
          <cost>78</cost>
          <flags>
            <childInherit/>
            <ribCapture/>
          </flags>
        </route>
        <route>
          <faceId>276</faceId>
          <origin>static</origin>
          <cost>79</cost>
          <flags>
            <childInherit/>
          </flags>
          <expirationPeriod>PT47S</expirationPeriod>
        </route>
      </routes>
    </ribEntry>
    <ribEntry>
      <prefix>/localhost/nfd</prefix>
      <routes>
        <route>
          <faceId>258</faceId>
          <origin>app</origin>
          <cost>0</cost>
          <flags>
            <childInherit/>
          </flags>
        </route>
      </routes>
    </ribEntry>
  </rib>
)XML");

const std::string STATUS_TEXT =
  "RIB:\n"
  "  / routes={nexthop=262 origin=static cost=9 flags=capture expires=never, "
              "nexthop=272 origin=static cost=50 flags=none expires=never, "
              "nexthop=274 origin=static cost=78 flags=child-inherit|capture expires=never, "
              "nexthop=276 origin=static cost=79 flags=child-inherit expires=47s}\n"
  "  /localhost/nfd routes={nexthop=258 origin=app cost=0 flags=child-inherit expires=never}\n";

BOOST_AUTO_TEST_CASE(Status)
{
  this->fetchStatus();
  RibEntry payload1;
  payload1.setName("/")
          .addRoute(Route().setFaceId(262)
                           .setOrigin(ndn::nfd::ROUTE_ORIGIN_STATIC)
                           .setCost(9)
                           .setFlags(ndn::nfd::ROUTE_FLAG_CAPTURE))
          .addRoute(Route().setFaceId(272)
                           .setOrigin(ndn::nfd::ROUTE_ORIGIN_STATIC)
                           .setCost(50)
                           .setFlags(ndn::nfd::ROUTE_FLAGS_NONE))
          .addRoute(Route().setFaceId(274)
                           .setOrigin(ndn::nfd::ROUTE_ORIGIN_STATIC)
                           .setCost(78)
                           .setFlags(ndn::nfd::ROUTE_FLAG_CHILD_INHERIT | ndn::nfd::ROUTE_FLAG_CAPTURE))
          .addRoute(Route().setFaceId(276)
                           .setOrigin(ndn::nfd::ROUTE_ORIGIN_STATIC)
                           .setCost(79)
                           .setFlags(ndn::nfd::ROUTE_FLAG_CHILD_INHERIT)
                           .setExpirationPeriod(47292_ms));
  RibEntry payload2;
  payload2.setName("/localhost/nfd")
          .addRoute(Route().setFaceId(258)
                           .setOrigin(ndn::nfd::ROUTE_ORIGIN_APP)
                           .setCost(0)
                           .setFlags(ndn::nfd::ROUTE_FLAG_CHILD_INHERIT));
  this->sendDataset("/localhost/nfd/rib/list", payload1, payload2);
  this->prepareStatusOutput();

  BOOST_CHECK(statusXml.is_equal(STATUS_XML));
  BOOST_CHECK(statusText.is_equal(STATUS_TEXT));
}

BOOST_AUTO_TEST_SUITE_END() // TestRibModule
BOOST_AUTO_TEST_SUITE_END() // Nfdc

} // namespace tests
} // namespace nfdc
} // namespace tools
} // namespace nfd