/**
* Digital Voice Modem - Host Software
* GPLv2 Open Source. Use is subject to license terms.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* @package DVM / Host Software
*
*/
/*
*   Copyright (C) 2022 by Bryan Biedenkapp N2PLL
*
*   This program 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 2 of the License, or
*   (at your option) any later version.
*
*   This program 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 this program; if not, write to the Free Software
*   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "Defines.h"
#include "p25/lc/tdulc/LC_ADJ_STS_BCAST.h"
#include "Log.h"
#include "Utils.h"

using namespace p25::lc::tdulc;
using namespace p25::lc;
using namespace p25;

#include <cassert>
#include <cmath>

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

/// <summary>
/// Initializes a new instance of the LC_ADJ_STS_BCAST class.
/// </summary>
LC_ADJ_STS_BCAST::LC_ADJ_STS_BCAST() : TDULC(),
    m_adjCFVA(P25_CFVA_FAILURE),
    m_adjRfssId(0U),
    m_adjSiteId(0U),
    m_adjChannelId(0U),
    m_adjChannelNo(0U),
    m_adjServiceClass(P25_SVC_CLS_INVALID)
{
    m_lco = p25::LC_ADJ_STS_BCAST;
}

/// <summary>
/// Decode a terminator data unit w/ link control.
/// </summary>
/// <param name="data"></param>
/// <returns>True, if TDULC was decoded, otherwise false.</returns>
bool LC_ADJ_STS_BCAST::decode(const uint8_t* data)
{
    assert(data != NULL);

    /* stub */

    return true;
}

/// <summary>
/// Encode a terminator data unit w/ link control.
/// </summary>
/// <param name="data"></param>
void LC_ADJ_STS_BCAST::encode(uint8_t* data)
{
    assert(data != NULL);

    ulong64_t rsValue = 0U;

    m_implicit = true;

    if ((m_adjRfssId != 0U) && (m_adjSiteId != 0U) && (m_adjChannelNo != 0U)) {
        if (m_adjSysId == 0U) {
            m_adjSysId = m_siteData.sysId();
        }

        rsValue = m_siteData.lra();                                                 // Location Registration Area
        rsValue = (rsValue << 12) + m_adjSysId;                                     // System ID
        rsValue = (rsValue << 8) + m_adjRfssId;                                     // RF Sub-System ID
        rsValue = (rsValue << 8) + m_adjSiteId;                                     // Site ID
        rsValue = (rsValue << 4) + m_adjChannelId;                                  // Channel ID
        rsValue = (rsValue << 12) + m_adjChannelNo;                                 // Channel Number
        rsValue = (rsValue << 8) + m_adjServiceClass;                               // System Service Class
    }
    else {
        LogError(LOG_P25, "TDULC::encodeLC(), invalid values for LC_ADJ_STS_BCAST, tsbkAdjSiteRFSSId = $%02X, tsbkAdjSiteId = $%02X, tsbkAdjSiteChannel = $%02X",
            m_adjRfssId, m_adjSiteId, m_adjChannelNo);
        return; // blatently ignore creating this TSBK
    }

    std::unique_ptr<uint8_t[]> rs = TDULC::fromValue(rsValue);
    TDULC::encode(data, rs.get());
}

// ---------------------------------------------------------------------------
//  Private Class Members
// ---------------------------------------------------------------------------

/// <summary>
/// Internal helper to copy the the class.
/// </summary>
/// <param name="data"></param>
void LC_ADJ_STS_BCAST::copy(const LC_ADJ_STS_BCAST& data)
{
    TDULC::copy(data);

    m_adjCFVA = data.m_adjCFVA;
    m_adjRfssId = data.m_adjRfssId;
    m_adjSiteId = data.m_adjSiteId;
    m_adjChannelId = data.m_adjChannelId;
    m_adjChannelNo = data.m_adjChannelNo;
    m_adjServiceClass = data.m_adjServiceClass;
}
