// dialog.cpp

#include "dialog.h"
#include "ui_dialog.h"
#include <QDebug>
#include <QString>
#include <QProcess>
#include <QScrollBar>
#include <QMessageBox>
#include <QFileInfo>
#include <QFileDialog>

#include <QTextStream>
#include <QFile>
#include <QDesktopServices>
#include <QUrl>

Dialog::Dialog(QWidget *parent) : QDialog(parent), ui(new Ui::Dialog)
{
    ui->setupUi(this);

    // Play button for output - initially disabled
    //ui->playOutputButton->setEnabled(false);
    ui->openGnuplotButton->setEnabled(false);

    // Create three processes
    // 1.imachexec, 2.input play 3.output play
    mImachexecProcess = new QProcess(this);
    mGnuplotProcess = new QProcess(this);
    //mOutputPlayProcess = new QProcess(this);

    connect(mImachexecProcess, SIGNAL(started()), this, SLOT(processStarted()));

    connect(mImachexecProcess,SIGNAL(readyReadStandardOutput()),this,SLOT(readyReadStandardOutput()));
    connect(mImachexecProcess, SIGNAL(finished(int)), this, SLOT(imachexecFinished()));
}

Dialog::~Dialog()
{
    delete ui;
}

void Dialog::processStarted()
{
    qDebug() << "processStarted()";
}

// imach start
void Dialog::on_startButton_clicked()
{
    QString program = "imach";

    QStringList arguments;

    QString input = ui->fromLineEdit->text();
    if(input.isEmpty()) {
        qDebug() << "No input";
        QMessageBox::information(this,
                     tr("imach"),tr("Input file not specified"));
        return;
    }
    QString output = input;
//    QString output = ui->toLineEdit->text();
//    if(output.isEmpty()) {
//        qDebug() << "No output";
//        QMessageBox::information(this,
//                     tr("imach"),tr("Output file not specified"));
//        return;
//    }

//    QString fileName = ui->toLineEdit->text();
//    qDebug() << "output file check " << fileName;
//    qDebug() << "QFile::exists(fileName) = " << QFile::exists(fileName);
//    if (QFile::exists(fileName)) {
//         if (QMessageBox::question(this, tr("imach"),
//                    tr("There already exists a file called %1 in "
//                    "the current directory. Overwrite?").arg(fileName),
//                    QMessageBox::Yes|QMessageBox::No, QMessageBox::No)
//             == QMessageBox::No)
//             return;
//         QFile::remove(fileName);
//         while(QFile::exists(fileName)) {
//             qDebug() << "output file still there";
//         }
//     }

//    arguments << input << output;
      arguments << input << " q";

    qDebug() << arguments;

    mImachexecProcess->setProcessChannelMode(QProcess::MergedChannels);
    mImachexecProcess->start(program, arguments);
}

void Dialog::readyReadStandardOutput()
{
    mOutputString.append(mImachexecProcess->readAllStandardOutput());
    ui->textEdit->setText(mOutputString);

    // put the slider at the bottom
    ui->textEdit->verticalScrollBar()
            ->setSliderPosition(
                ui->textEdit->verticalScrollBar()->maximum());
}

void Dialog::imachexecFinished()
{
    // Set the imachexec status by checking output gnuplot file's existence
    //QString fileName = ui->toLineEdit->text();
    QString fichnom = ui->fromLineEdit->text();
    QFileInfo fileInfor(fichnom);
    QString NomComplet = fileInfor.completeBaseName();
    //QString NomSuffix = fileInfor.suffix();
    //QString NomCheminsansEx = fileInfor.canonicalPath()+NomComplet;
    QString NomCompGp = fileInfor.canonicalPath()+"/"+NomComplet+".gp";
    //QFileInfo fileInfoGp(NomCompGp);

    //if (QFile::exists(fileName)) {
    if (QFile::exists(NomCompGp)) {
        ui->imachStatusLabel
                ->setText("IMaCh Status: Successful!");
        //ui->playOutputButton->setEnabled(true);
        ui->openGnuplotButton->setEnabled(true);
    }
    else {
        ui->imachStatusLabel
                ->setText("IMaCh Status: Failed!");
    }
}

// Browse... button clicked - this is for input file
void Dialog::on_fileOpenButton_clicked()
{
    QString fileName =
        QFileDialog::getOpenFileName(
                this,
                tr("Open File"),
                "/tmp/test",
                tr("imach parameter files (*.imach *.txt *.log *.gp)"));
    QFileInfo fileInfor(fileName);
    if (!fileName.isEmpty()) {
        ui->fromLineEdit->setText(fileName);
    }

}

void Dialog::on_openLogButton_clicked()
{
    QString fichnom = ui->fromLineEdit->text();
    QFileInfo fileInfor(fichnom);
    QString NomComplet = fileInfor.completeBaseName();
    QString NomCompLog = fileInfor.canonicalPath()+"/"+NomComplet+".log";
    //QFileInfo fileInfolog(NomCompLog);
    QDesktopServices::openUrl(QUrl("file://"+NomCompLog,QUrl::TolerantMode));
}

void Dialog::on_launchbrowButton_clicked()
{
    QString fichnom = ui->fromLineEdit->text();
    QFileInfo fileInfor(fichnom);
    QString NomComplet = fileInfor.completeBaseName();
    QString NomCompLaunch = fileInfor.canonicalPath()+"/"+NomComplet+".htm";
    //QFileInfo fileInfolog(NomCompLaunch;
    QDesktopServices::openUrl(QUrl("file://"+NomCompLaunch,QUrl::TolerantMode));
}

void Dialog::on_openGnuplotButton_clicked()
{
 //   QString program = "ffplay";
 //   QStringList arguments;
    QString fichnom = ui->fromLineEdit->text();
    QFileInfo fileInfor(fichnom);
    QString NomComplet = fileInfor.completeBaseName();
    //QString NomSuffix = fileInfor.suffix();
    //QString NomCheminsansEx = fileInfor.canonicalPath()+NomComplet;
    QString NomCompGp = fileInfor.canonicalPath()+"/"+NomComplet+".gp";
    QFileInfo fileInfoGp(NomCompGp);
    //QString input = NomCheminsansEx;
    //   arguments << input;
 //   mInputPlayProcess->start(program, arguments);
  //  QFile file(NomCompLog);
  //  if(!file.open(QIODevice::ReadOnly))
  //      QMessageBox::information(0,"info",file.errorString());

    QDesktopServices::openUrl(QUrl("file://"+NomCompGp,QUrl::TolerantMode));
//o    QTextStream in(&file);
//o    ui->playInputButton->setText(in.readAll());
}


void Dialog::on_runGnuplotButton_clicked()
{
    QString program = "gnuplot";
    QStringList arguments;
    QString fichnom = ui->fromLineEdit->text();
    QFileInfo fileInfor(fichnom);
    QString NomComplet = fileInfor.completeBaseName();
    QString NomCompGp = fileInfor.canonicalPath()+"/"+NomComplet+".gp";
    //QFileInfo fileInfoGp(NomCompGp);
    //QString input = NomCheminsansEx;
    arguments << NomCompGp;
    mGnuplotProcess->start(program, arguments);
  //  QFile file(NomCompLog);
  //  if(!file.open(QIODevice::ReadOnly))
  //      QMessageBox::information(0,"info",file.errorString());

    //QDesktopServices::openUrl(QUrl("file://"+NomCompGp,QUrl::TolerantMode));
//o    QTextStream in(&file);
//o    ui->playInputButton->setText(in.readAll());
}

//void Dialog::on_playOutputButton_clicked()
//{
//    QString program = "ffplay";
//    QStringList arguments;
//    QString output = ui->toLineEdit->text();
//    arguments << output;
//    mInputPlayProcess->start(program, arguments);
//}