/*------------------------------------------------------------------------------
-- This file is a part of the QLop Software
-- Copyright (C) 2015, Plasma Physics Laboratory - CNRS
--
-- 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 2 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, write to the Free Software
-- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-------------------------------------------------------------------------------*/
/*-- Author : Alexis Jeandet
-- Mail : alexis.jeandet@member.fsf.org
----------------------------------------------------------------------------*/

#include "cassinidatadownloader.h"
#include "ui_cassinidatadownloader.h"
#include <filedownloader.h>
#include <QDir>
#include <QFileDialog>
#include <QFile>

CassiniDataDownloader::CassiniDataDownloader(QWidget *parent) :
    QWidget(parent),
    ui(new Ui::CassiniDataDownloader)
{
    ui->setupUi(this);
    m_xmlLoader = new ExpXmlDownLoader();
    connect(this->ui->calendar,SIGNAL(activated(QDate)),this,SLOT(downloadData(QDate)));
    connect(this->ui->LoadXmlFileQpb,SIGNAL(clicked()),this,SLOT(loadXmlFile()));
}

CassiniDataDownloader::~CassiniDataDownloader()
{
    delete ui;
    delete m_xmlLoader;
}

void CassiniDataDownloader::changeEvent(QEvent *e)
{
    QWidget::changeEvent(e);
    switch (e->type()) {
    case QEvent::LanguageChange:
        ui->retranslateUi(this);
        break;
    default:
        break;
    }
}

void CassiniDataDownloader::downloadData(const QDate &date)
{
    QDate tmpDate;
    QStringList months=QStringList()<< "JAN" << "FEB" << "MAR" << "APR" << "MAY" << "JUN" << "JUI" << "AUG" << "SEP" << "OCT" << "NOV" << "DEC";
    tmpDate.setDate(date.year(),date.month(),1);
    int firstDayOfMonth=tmpDate.dayOfYear();
    tmpDate.setDate(tmpDate.year(),tmpDate.month(),tmpDate.daysInMonth());
    int lastDayOfMonth=tmpDate.dayOfYear();
    QString link="http://ppi.pds.nasa.gov/ditdos/download?id=pds://PPI/CO-E_SW_J_S-MAG-3-RDR-FULL-RES-V1.0/DATA/" \
        + QString("%1").arg(date.year()) +"/" + QString("%1_%2_").arg(firstDayOfMonth,3).arg(lastDayOfMonth,3).replace(' ','0') \
        + months.at(date.month()-1) + "/" ;
    qDebug()<<link;
    QString dataFileName= QString("%1%2").arg(date.year()-2000,2).arg(date.dayOfYear(),3).replace(' ','0') + "_FGM_KRTP.TAB";
    QString headerFileName= QString("%1%2").arg(date.year()-2000,2).arg(date.dayOfYear(),3).replace(' ','0') + "_FGM_KRTP.LBL";
//    "_FGM_KRTP.TAB"
    FileDownloader::downloadFile(link+dataFileName,QDir::homePath() +"/Téléchargements/"+dataFileName);
    FileDownloader::downloadFile(link+headerFileName,QDir::homePath() +"/Téléchargements/"+headerFileName);
}

void CassiniDataDownloader::loadXmlFile()
{
    QString file=QFileDialog::getOpenFileName();
    if(QFile::exists(file))
    {
        if(m_xmlLoader->parseXml(file))
        {
            QList<QDate> daysToDl = m_xmlLoader->daysToDownload();
            for(int i=0;i<daysToDl.count();i++)
            {
                downloadData(daysToDl.at(i));
            }
        }
    }
}