/*
 *  Copyright (c) 2016, The OpenThread Authors.
 *  All rights reserved.
 *
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions are met:
 *  1. Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *  2. Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution.
 *  3. Neither the name of the copyright holder nor the
 *     names of its contributors may be used to endorse or promote products
 *     derived from this software without specific prior written permission.
 *
 *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 *  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 *  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 *  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 *  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 *  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 *  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 *  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 *  POSSIBILITY OF SUCH DAMAGE.
 */

/**
 * @file
 *   This file implements the Announce Begin Client.
 */

#include "announce_begin_client.hpp"

#if OPENTHREAD_CONFIG_COMMISSIONER_ENABLE && OPENTHREAD_FTD

#include "coap/coap_message.hpp"
#include "common/code_utils.hpp"
#include "common/debug.hpp"
#include "common/instance.hpp"
#include "common/locator_getters.hpp"
#include "common/logging.hpp"
#include "meshcop/meshcop.hpp"
#include "meshcop/meshcop_tlvs.hpp"
#include "thread/thread_netif.hpp"
#include "thread/uri_paths.hpp"

namespace ot {

AnnounceBeginClient::AnnounceBeginClient(Instance &aInstance)
    : InstanceLocator(aInstance)
{
}

Error AnnounceBeginClient::SendRequest(uint32_t            aChannelMask,
                                       uint8_t             aCount,
                                       uint16_t            aPeriod,
                                       const Ip6::Address &aAddress)
{
    Error                   error = kErrorNone;
    MeshCoP::ChannelMaskTlv channelMask;
    Ip6::MessageInfo        messageInfo;
    Coap::Message *         message = nullptr;

    VerifyOrExit(Get<MeshCoP::Commissioner>().IsActive(), error = kErrorInvalidState);
    VerifyOrExit((message = Get<Tmf::Agent>().NewPriorityMessage()) != nullptr, error = kErrorNoBufs);

    SuccessOrExit(error = message->InitAsPost(aAddress, UriPath::kAnnounceBegin));
    SuccessOrExit(error = message->SetPayloadMarker());

    SuccessOrExit(
        error = Tlv::Append<MeshCoP::CommissionerSessionIdTlv>(*message, Get<MeshCoP::Commissioner>().GetSessionId()));

    channelMask.Init();
    channelMask.SetChannelMask(aChannelMask);
    SuccessOrExit(error = channelMask.AppendTo(*message));

    SuccessOrExit(error = Tlv::Append<MeshCoP::CountTlv>(*message, aCount));
    SuccessOrExit(error = Tlv::Append<MeshCoP::PeriodTlv>(*message, aPeriod));

    messageInfo.SetSockAddr(Get<Mle::MleRouter>().GetMeshLocal16());
    messageInfo.SetPeerAddr(aAddress);
    messageInfo.SetPeerPort(Tmf::kUdpPort);

    SuccessOrExit(error = Get<Tmf::Agent>().SendMessage(*message, messageInfo));

    otLogInfoMeshCoP("sent announce begin query");

exit:
    FreeMessageOnError(message, error);
    return error;
}

} // namespace ot

#endif // OPENTHREAD_CONFIG_COMMISSIONER_ENABLE && OPENTHREAD_FTD