// SPDX-License-Identifier: GPL-2.0-only
/*
 * Digital Voice Modem - Common Library
 * GPLv2 Open Source. Use is subject to license terms.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 *  Copyright (C) 2024 Bryan Biedenkapp, N2PLL
 *
 */
#include "common/p25/dfsi/frames/StartOfStream.h"
#include "common/p25/dfsi/DFSIDefines.h"
#include "common/Utils.h"
#include "common/Log.h"

#include <cassert>
#include <cstring>

using namespace p25;
using namespace p25::dfsi;
using namespace p25::dfsi::frames;

// ---------------------------------------------------------------------------
//  Public Class Members
// ---------------------------------------------------------------------------

/* Initializes a instance of the StartOfStream class. */

StartOfStream::StartOfStream() :
    m_nid(0U),
    m_errorCount(0U)
{
    /* stub */
}

/* Initializes a instance of the StartOfStream class. */

StartOfStream::StartOfStream(uint8_t* data) :
    m_nid(0U),
    m_errorCount(0U)
{
    decode(data);
}

/* Decode a start of stream frame. */

bool StartOfStream::decode(const uint8_t* data)
{
    assert(data != nullptr);

    m_nid = __GET_UINT16(data, 0U);                             // Network Identifier
    m_errorCount = (data[2U] & 0x0FU);                          // Error Count

    return true;
}

/* Encode a start of stream frame. */

void StartOfStream::encode(uint8_t* data)
{
    assert(data != nullptr);

    __SET_UINT16(m_nid, data, 0U);                              // Network Identifier
    data[2U] = m_errorCount & 0x0FU;                            // Error Count
}