/*****************************************************************************
*    AppleSAWS - The Apple Software Analysis WorkShop                        *
*    Copyright (C) 2015-2021  Mark D. Long                                   *
*                                                                            *
*    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 3 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, see <https://www.gnu.org/licenses/>.  *
*****************************************************************************/

#include "assemblersymbols.h"


AssemblerSymbols::AssemblerSymbols(QObject *parent) : QObject(parent)
{

}

int AssemblerSymbols::locationOfSymbolAtAddress(quint16 address)
{
    // Assume list m_assemblerSymbols is sorted by address (it should be)
    QListIterator<AssemblerSymbol> it(m_assemblerSymbols);
    int idx = 0;
    while (it.hasNext())
    {
        AssemblerSymbol ep = it.next();
        if (ep.address == address) return idx;
        if (ep.address > address) return -1;
        idx++;
    }
    return -1;
}

QString AssemblerSymbols::getSymbolAtAddress(quint16 address)
{
    int loc = locationOfSymbolAtAddress(address);
    if (loc < 0)
    {
        return "";
    }
    else
    {
        return m_assemblerSymbols.at(loc).name;
    }
}

bool AssemblerSymbols::hasAssemSymbolAtAddress(quint16 address)
{
    // Assume list m_assemblerSymbols is sorted by address (it should be)
    QListIterator<AssemblerSymbol> it(m_assemblerSymbols);
    while (it.hasNext())
    {
        AssemblerSymbol ep = it.next();
        if (ep.address == address) return true;
        if (ep.address > address) return false;
    }
    return false;
}

void AssemblerSymbols::editSymbol(int location, AssemblerSymbol newSymbol)
{

    if (m_assemblerSymbols.at(location).address == newSymbol.address)
    {
        m_assemblerSymbols[location].name = newSymbol.name;
        emit symbolChangedAt(location);
    }
    else
    {
        removeSymbolAt(location);
        addSymbol(newSymbol);
    }
}

void AssemblerSymbols::addSymbol(AssemblerSymbol ep)
{
    if (hasAssemSymbolAtAddress(ep.address)) return;

    int idx = 0;
    for (; idx < m_assemblerSymbols.count(); idx++)
    {
        if (ep.address < m_assemblerSymbols[idx].address)
            break;
    }
    m_assemblerSymbols.insert(idx,ep);
    emit symbolAddedAt(idx);
    emit symbolAdded(ep,idx);
}

void AssemblerSymbols::removeSymbolAt(int location)
{
    m_assemblerSymbols.removeAt(location);
}

//---------------------------------------------------------------------------
// STREAMING OPERATORS

QDataStream &AssemblerSymbols::read(QDataStream &dataStream)
{
    quint8 version;
    dataStream >> version;
    if (version == 0)
    {
        dataStream >> m_assemblerSymbols;
    }
    else qWarning("Unhandled version of AssemSymbolModel (%d) found in QDataStream",version);

    return dataStream;
}

QDataStream &AssemblerSymbols::write(QDataStream &dataStream) const
{
    quint8 version = 0; // Increment this and update read() if new items are added
    dataStream << version;
    dataStream << m_assemblerSymbols;
    return dataStream;
}

QDataStream &operator<<(QDataStream &out, const AssemblerSymbols &model)
{
    return model.write(out);
}

QDataStream &operator>>(QDataStream &in, AssemblerSymbols&model)
{
    return model.read(in);
}

QDataStream &operator<<(QDataStream &out, const AssemblerSymbol &model)
{
    out << model.address;
    out << model.name;
    out << (qint32) model.symbolsize;
    return out;
}

QDataStream &operator>>(QDataStream &in, AssemblerSymbol &model)
{
    in >> model.address;
    in >> model.name;
    qint32 size;
    in >> size;
    model.symbolsize = (SymbolSize) size;
    return in;
}

//---------------------------------------------------------------------------
// TESTING

void AssemblerSymbols::doTestData()
{
    AssemblerSymbol ep;
    ep.address = 0x0100;
    ep.name = "Test Symbol 1";
    addSymbol(ep);
    ep.address = 0x0200;
    ep.name = "Test Symbol 2";
    addSymbol(ep);
    ep.address = 0x0300;
    ep.name = "Test Symbol 3";
    addSymbol(ep);

}