#include "ContactRepository.h"
#include <QFile>

CContactRepository::CContactRepository()
{

}

int CContactRepository::LoadContacts()
{
    QFile* ContactsFile = new QFile("./Configuration/Contacts.mcc");
    if(ContactsFile)
    {
        if(ContactsFile->open(QIODevice::ReadOnly | QIODevice::Unbuffered) == false)
        {
            if(ContactsFile->open(QIODevice::WriteOnly | QIODevice::Unbuffered) == true)
            {
                mContactsList.clear();
                SaveContacts(); //create an empty file...
            }
            return 0;
        }
    }
    else
    {
        return 0;
    }

    mContactsList.clear();

    QDataStream * InputStream = new QDataStream(ContactsFile);

    quint32 MagicNbr;// = 0xBAADCAFE;
    quint32 NbEntries;

    *InputStream >> MagicNbr;

    if(MagicNbr != 0xDEADBEEF)
    {
        return RET_ERROR;
    }

    *InputStream >> NbEntries;

    for(unsigned int i = 0; i < NbEntries; i++)
    {
        CContact NewContact;
        *InputStream >> NewContact;
        mContactsList.append(NewContact);
    }

    qDebug("Loaded %d contacts",mContactsList.size());
    ContactsFile->close();
    delete ContactsFile;
    delete InputStream;

    return mContactsList.size();
}

int CContactRepository::ChangeContact(int index, CContact Contact)
{
    if(index < 0 || index >= mContactsList.size())
    {
        return RET_ERROR;
    }

    mContactsList[index] = Contact;
    SaveContacts();
    return RET_OK;
}


int CContactRepository::AddContact(CContact Contact)
{

    for(int i = 0; i < mContactsList.size(); i++)
    {
        if(mContactsList.at(i) == Contact)
        {
            mContactsList[i] = Contact;
            SaveContacts();
            return RET_OK;
        }
    }

    mContactsList.append(Contact);
    SaveContacts();
    return RET_OK;
}

int CContactRepository::DeleteContact(int index)
{
    if(index < 0 || index >= mContactsList.size())
    {
        return RET_ERROR;
    }

    mContactsList.takeAt(index);
    SaveContacts();
    return RET_OK;
}

int CContactRepository::GetContact(int index,CContact& Contact)
{
    if(index < 0 || index >= mContactsList.size())
    {
        return RET_ERROR;
    }

    Contact = mContactsList.at(index);

    return RET_OK;
}

CContact *CContactRepository::GetContactPtr(int index)
{
    if(index < 0 || index >= mContactsList.size())
    {
        return 0;
    }

    return &mContactsList[index];
}

int CContactRepository::SaveContacts()
{
    QFile* ContactsFile = new QFile("./Configuration/Contacts.mcc");
    if(ContactsFile)
    {
        if(ContactsFile->open(QIODevice::WriteOnly | QIODevice::Unbuffered | QIODevice::Truncate) == false)
        {

            return 0;
        }
    }
    else
    {
        return 0;
    }


    QDataStream * InputStream = new QDataStream(ContactsFile);

    quint32 MagicNbr = 0xDEADBEEF;

    *InputStream << MagicNbr;
    *InputStream << mContactsList.size();

    for(int i = 0; i < mContactsList.size(); i++)
    {
        *InputStream << mContactsList.at(i);
    }

    ContactsFile->close();
    delete ContactsFile;
    delete InputStream;

    qDebug("SAved %d contacts",mContactsList.size());

    return mContactsList.size();
}