/*
  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 "GenerateDialog.hpp"
#include <QLabel>

GenerateDialog::GenerateDialog(KissCount* kiss, wxUI *parent, int month, int year) : QDialog(0, Qt::Dialog), _kiss(kiss), _wxUI(parent)
{
    QGridLayout* gridLayout;
    std::map<int, std::vector<int> >::iterator it;
    int i, a, toSelect=-1;
    QDate curDate = QDate::currentDate();
    std::vector<int>::iterator monthIt;

    // wxBoxSizer *hbox = new wxBoxSizer(wxHORIZONTAL);
    gridLayout = new QGridLayout(this);

    setWindowTitle(_("Generate month"));
    setModal(true);

    gridLayout->addWidget(new QLabel(_("From "), this), 0, 0);

    _yearFrom = new QComboBox(this);
    gridLayout->addWidget(_yearFrom, 0, 1);
    _monthFrom = new QComboBox(this);
    gridLayout->addWidget(_monthFrom, 0, 2);

    _yearTo = new QComboBox(this);
    gridLayout->addWidget(_yearTo, 1, 1);
    _monthTo = new QComboBox(this);
    gridLayout->addWidget(_monthTo, 1, 2);

    QPushButton* ok = new QPushButton(_("OK"), this);
    QPushButton* cancel = new QPushButton(_("Cancel"), this);
    gridLayout->addWidget(ok, 3, 1);
    gridLayout->addWidget(cancel, 3, 2);

    connect(ok, SIGNAL(clicked()), this, SLOT(OnOK()));
    connect(cancel, SIGNAL(clicked()), this, SLOT(OnCancel()));

    connect(_yearTo, SIGNAL(currentIndexChanged(int)), this, SLOT(OnYearToChange(int)));
    connect(_yearFrom, SIGNAL(currentIndexChanged(int)), this, SLOT(OnYearFromChange(int)));

    _ops = _kiss->GetAllOperations();

    _yearFrom->addItem("");
    _monthFrom->addItem("");

    for(i=1, it = _ops.begin(); it != _ops.end(); it++, i++)
    {
        _yearFrom->addItem(QString::number(it->first));
        if (year == it->first)
            toSelect = i;
    }

    if (toSelect != -1)
    {
        _yearFrom->setCurrentIndex(toSelect);
        toSelect=0;
        if (month != -1)
	{
            for(i=0; i<(int)_monthFrom->count(); i++)
	    {
                if (_monthFrom->itemText(i) == wxUI::months[month])
		{
                    toSelect = i;
                    break;
		}
	    }
	}
        _monthFrom->setCurrentIndex(toSelect);
    }
    else
    {
        _yearFrom->setCurrentIndex(0);
    }

    for(i=curDate.year()-10; i<=curDate.year()+10; i++)
        _yearTo->addItem(QString::number(i));

    if (year == -1)
    {
        _yearTo->setCurrentIndex(10);
        _monthTo->setCurrentIndex(curDate.month());
    }
    else
    {
        if (month == 11)
	    year++;

	_yearTo->setCurrentIndex(year-(curDate.year()-10));

        if (month == -1)
            _monthTo->setCurrentIndex(0);
        else
	{
            for(a=0, i=0, monthIt=_ops[year].begin(); monthIt!=_ops[year].end() && i<12; i++)
	    {
                if (i != *monthIt) 
		{
                    a++;
                    continue;
		}
                if (*monthIt > month)
                    break;
                monthIt++;
	    }
            _monthTo->setCurrentIndex(a);
	}
    }
}

void GenerateDialog::OnYearFromChange(int index)
{
    QString years = _yearFrom->itemText(index);
    int year;
    std::vector<int>::iterator it;

    _monthFrom->clear();
  
    if (!years.length()) 
    {
        _monthFrom->addItem("");
        return;
    }

    year = years.toInt();

    for(it=_ops[year].begin(); it!=_ops[year].end(); it++)
        _monthFrom->addItem(wxUI::months[*it]);
    _monthFrom->setCurrentIndex(0);

    layout();
}

void GenerateDialog::OnYearToChange(int index)
{
    int year, i, ok;
    std::vector<int>::iterator it;

    _monthTo->clear();
  
    year = _yearTo->currentText().toInt();

    for (i=0; i<12; i++)
    {
        ok = 1;
        for(it=_ops[year].begin(); it!=_ops[year].end(); it++)
	{
            if (*it == i)
	    {
                ok=0; break;
	    }
	}
        if (ok)
            _monthTo->addItem(wxUI::months[i]);
    }

    _monthTo->setCurrentIndex(0);

    layout();
}

void GenerateDialog::OnOK()
{  
    int monthFrom, yearFrom, monthTo, yearTo, i;

    if (!_yearFrom->itemText(_yearFrom->currentIndex()).length())
    {
        monthFrom = -1;
        yearFrom = -1;
    }
    else
    {
        for (i=0; i<12; i++)
	{
            if (wxUI::months[i] == _monthFrom->itemText(_monthFrom->currentIndex()))
	    {
                monthFrom = i;
                break;
	    }
	}
        yearFrom = _yearFrom->itemText(_yearFrom->currentIndex()).toInt();
    }

    for (i=0; i<12; i++)
    {
        if (wxUI::months[i] == _monthTo->itemText(_monthTo->currentIndex()))
	{
            monthTo = i;
            break;
	}
    }
    yearTo = _yearTo->itemText(_yearTo->currentIndex()).toInt();

    QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
    close();
    _kiss->GenerateMonth(monthFrom, yearFrom, monthTo, yearTo);
    QApplication::restoreOverrideCursor();
}

void GenerateDialog::OnCancel()
{
    close();
}