#include "memory.h"

Memory::Memory(Platform & platform): _platform(platform)
{
}

void Memory::memoryModified()
{
    _modified = true;
}

bool Memory::isMemoryModified()
{
    return _modified;
}

void Memory::readMemory()
{
    _data = _platform.getEepromBuffer(512);

    if (_data[0] != 0xDE || _data[1] != 0xAD || _data[2] != 0xAF || _data[3] != 0xFE)
        return;

    uint8_t* buffer = _data + 4;
    int size = _saveCount;
    for (int i = 0; i < size; i++)
    {
        buffer = _saveRestores[i]->restore(buffer);
    }
}

void Memory::writeMemory()
{
    _data[0] = 0xDE;
    _data[1] = 0xAD;
    _data[2] = 0xAF;
    _data[3] = 0xFE;

    uint8_t* buffer = _data + 4;
    int size = _saveCount;
    for (int i = 0; i < size; i++)
    {
        buffer = _saveRestores[i]->save(buffer);
    }
    _platform.commitToEeprom();
    _modified = false;
}

void Memory::addSaveRestore(SaveRestore * obj)
{
    if (_saveCount >= MAXSAVE - 1)
        return;

    _saveRestores[_saveCount] = obj;
    _saveCount += 1;
}