/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/**
 * Copyright (c) 2013-2016 Regents of the University of California.
 *
 * This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
 *
 * ndn-cxx library is free software: you can redistribute it and/or modify it under the
 * terms of the GNU Lesser General Public License as published by the Free Software
 * Foundation, either version 3 of the License, or (at your option) any later version.
 *
 * ndn-cxx library 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 Lesser General Public License for more details.
 *
 * You should have received copies of the GNU General Public License and GNU Lesser
 * General Public License along with ndn-cxx, e.g., in COPYING.md file.  If not, see
 * <http://www.gnu.org/licenses/>.
 *
 * See AUTHORS.md for complete list of ndn-cxx authors and contributors.
 */

#ifndef NDN_TESTS_UNIT_TESTS_MAKE_INTEREST_DATA_HPP
#define NDN_TESTS_UNIT_TESTS_MAKE_INTEREST_DATA_HPP

#include "interest.hpp"
#include "data.hpp"
#include "link.hpp"
#include "lp/nack.hpp"

namespace ndn {
namespace tests {

/** \brief create an Interest
 *  \param name Interest name
 *  \param nonce if non-zero, set Nonce to this value
 *               (useful for creating Nack with same Nonce)
 */
shared_ptr<Interest>
makeInterest(const Name& name, uint32_t nonce = 0);

/** \brief create a Data with fake signature
 *  \note Data may be modified afterwards without losing the fake signature.
 *        If a real signature is desired, sign again with KeyChain.
 */
shared_ptr<Data>
makeData(const Name& name);

/** \brief add a fake signature to Data
 */
Data&
signData(Data& data);

/** \brief add a fake signature to Data
 */
inline shared_ptr<Data>
signData(shared_ptr<Data> data)
{
  signData(*data);
  return data;
}

/** \brief create a Link object with fake signature
 *  \note Link may be modified afterwards without losing the fake signature.
 *        If a real signature is desired, sign again with KeyChain.
 */
shared_ptr<Link>
makeLink(const Name& name, std::initializer_list<std::pair<uint32_t, Name>> delegations);

/** \brief create a Nack
 *  \param interest Interest
 *  \param reason Nack reason
 */
lp::Nack
makeNack(const Interest& interest, lp::NackReason reason);

/** \brief create a Nack
 *  \param name Interest name
 *  \param nonce Interest nonce
 *  \param reason Nack reason
 */
lp::Nack
makeNack(const Name& name, uint32_t nonce, lp::NackReason reason);

/** \brief replace a name component
 *  \param[inout] name name
 *  \param index name component index
 *  \param a arguments to name::Component constructor
 */
template<typename...A>
void
setNameComponent(Name& name, ssize_t index, const A& ...a)
{
  Name name2 = name.getPrefix(index);
  name2.append(name::Component(a...));
  name2.append(name.getSubName(name2.size()));
  name = name2;
}

template<typename PKT, typename...A>
void
setNameComponent(PKT& pkt, ssize_t index, const A& ...a)
{
  Name name = pkt.getName();
  setNameComponent(name, index, a...);
  pkt.setName(name);
}

} // namespace tests
} // namespace ndn

#endif // NDN_TESTS_UNIT_TESTS_MAKE_INTEREST_DATA_HPP