// Squawk messenger. 
// Copyright (C) 2019  Yury Gubich <blue@macaw.me>
// 
// 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 <http://www.gnu.org/licenses/>.

#include "serializer.h"

template<class T>
Core::DataBase::Serializer<T>::Serializer() :
    bytes(),
    buffer(&bytes),
    stream(&buffer)
{
    buffer.open(QIODevice::WriteOnly);
}

template<class T>
Core::DataBase::Serializer<T>::Serializer(const T& value) :
    bytes(),
    buffer(&bytes),
    stream(&buffer)
{
    buffer.open(QIODevice::WriteOnly);
    _setValue(value);
}

template<class T>
Core::DataBase::Serializer<T>::~Serializer() {
    buffer.close();
}

template<class T>
MDB_val Core::DataBase::Serializer<T>::setData(const T& value) {
    clear();
    _setValue(value);
    return getValue();
}

template<class T>
void Core::DataBase::Serializer<T>::_setData(const T& value) {
    stream << value;
}

template<class T>
void Core::DataBase::Serializer<T>::clear() {
    if (buffer.pos() > 0) {
        buffer.seek(0);
    }
}

template<class T>
MDB_val Core::DataBase::Serializer<T>::getData() {
    MDB_val val;

    val.mv_size = buffer.pos();
    val.mv_data = (uint8_t*)bytes.data();

    return val;
}