// main.cpp

#include <QtGlobal>
#include <QCoreApplication>
#include <QtCore>
#include <QVariant>
#include <QDir>
#include <QDateTime>
#include <QDate>
#include <QTime>
#include <QDebug>

#include <iostream>
using namespace std;

#include "xlsxdocument.h"
#include "xlsxchartsheet.h"
#include "xlsxcellrange.h"
#include "xlsxchart.h"
#include "xlsxrichstring.h"
#include "xlsxworkbook.h"
using namespace QXlsx;

int whatType(QVariant var);

int main(int argc, char *argv[])
{
    QCoreApplication app(argc, argv);

    QXlsx::Document xlsxW;

    xlsxW.write( 1, 1, QString("Hello Qt!") );
    xlsxW.write( 2, 1, double(10.5) );
    xlsxW.write( 3, 1, (int)10 );
    xlsxW.write( 4, 1, QDateTime::currentDateTimeUtc() );
    xlsxW.write( 5, 1, QDate( 2019, 10, 5 ) );
    xlsxW.write( 6, 1, QTime( 4, 13, 36 ) );

    if ( xlsxW.saveAs("Test.xlsx") ) // save the document as 'Test.xlsx'
    {
        qDebug() << "[debug] success to write xlsx file";
    }
    else
    {
        qDebug() << "[debug][error] failed to write xlsx file";
    }

    qDebug() << "[debug] current directory is " << QDir::currentPath();

    Document xlsxR("Test.xlsx"); 
    if ( ! xlsxR.load() )
    {
        qDebug() << "[debug][error] failed to load xlsx file.";
    }

    whatType( xlsxR.cellAt( 1, 1 )->readValue() );
    whatType( xlsxR.cellAt( 2, 1 )->readValue() );
    whatType( xlsxR.cellAt( 3, 1 )->readValue() );
    whatType( xlsxR.cellAt( 4, 1 )->readValue() );
    whatType( xlsxR.cellAt( 5, 1 )->readValue() );
    whatType( xlsxR.cellAt( 6, 1 )->readValue() );

    return 0;
}

int whatType(QVariant var)
{
    if ( var.type() == QVariant::Invalid ) { qDebug() << "Invalid"; }
    if ( var.type() == QVariant::String ) { qDebug() << "String"; }
    if ( var.type() == QVariant::Double ) { qDebug() << "Double"; }
    if ( var.type() == QVariant::Int ) { qDebug() << "Int"; }
    if ( var.type() == QVariant::DateTime ) { qDebug() << "DateTime"; }
    if ( var.type() == QVariant::Date ) { qDebug() << "Date"; }
    if ( var.type() == QVariant::Time ) { qDebug() << "Time"; }

    return 0;
}