/*
  Copyright 2010-2012 Grégory Soutadé

  This file is part of KissCount.

  KissCount 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.

  KissCount 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 KissCount.  If not, see <http://www.gnu.org/licenses/>.
*/

#include "ExportEngine.hpp"

ExportEngine::ExportEngine()
{
}

ExportEngine::~ExportEngine()
{
}

bool ExportEngine::HandleFile(const QString& path, User* user, Database* db, KissCount* kiss)
{
    _path = path;
    _user = user;
    _db = db;
    _kiss = kiss;

    return path.endsWith(_shortExt) || path.endsWith(_shortExt.toUpper());
}

bool ExportEngine::SaveFile(std::vector<Operation>* operations)
{
    int i;
    int account, category;
    AccountAmount accountAmount;
    int minMonth = -1, minYear = -1;
    unsigned int maxMonth = -1, maxYear = -1;
    unsigned int month, year;
    std::map<int, int>::iterator it;

    if (!operations) return 0;

    _accounts.clear();
    _categories.clear();
    _accountAmounts.clear();

    for(i=0; i<(int)operations->size(); i++)
    {
	account = (*operations)[i].account;
	category = (*operations)[i].category;

	if (minYear == -1 || (int)(*operations)[i].year < minYear)
	    maxYear = minYear = (*operations)[i].year;

	if (minMonth == -1 || ((int)(*operations)[i].month < minMonth && (int)(*operations)[i].year == minYear))
	    maxMonth = minMonth = (*operations)[i].month;

	if ((*operations)[i].year > maxYear)
	{
	    maxYear = (*operations)[i].year;
	    maxMonth = (*operations)[i].month;
	}

	if ((*operations)[i].month > maxMonth && (*operations)[i].year == maxYear)
	    maxMonth = (*operations)[i].month;
	
	if (account && !_accounts.count(account))
	    _accounts[account]++;

	if (category && !_categories.count(category))
	    _categories[category]++;
    }

    for(it=_accounts.begin(); it!=_accounts.end(); it++)
    {
	month = minMonth;
	for (year = minYear; year <= maxYear; year++)
	{
	    for (; !(month > maxMonth && year == maxYear) && month < 12; month++)
	    {
		accountAmount.account = it->first;
		accountAmount.month = month;
		accountAmount.year = year;

		_accountAmounts[accountAmount] = _kiss->GetAccountAmount(accountAmount.account, accountAmount.month, accountAmount.year);
	    }
	    month = 0;
	}
    }

    return true;
}

QString ExportEngine::GetFileExt()
{
    return _(_longExt.toStdString().c_str());
}

QString ExportEngine::GetShortExt()
{
    return _shortExt;
}