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#include "waitforstopdialog.h"

#include <utils/algorithm.h>

#include <QVBoxLayout>
#include <QTimer>
#include <QLabel>
#include <QPushButton>

using namespace ProjectExplorer;
using namespace ProjectExplorer::Internal;

WaitForStopDialog::WaitForStopDialog(QList<ProjectExplorer::RunControl *> runControls)
    : m_runControls(runControls)
{
    setWindowTitle(tr("Waiting for Applications to Stop"));

    QVBoxLayout *layout = new QVBoxLayout();
    setLayout(layout);

    m_progressLabel = new QLabel;
    layout->addWidget(m_progressLabel);

    QPushButton *cancelButton = new QPushButton(tr("Cancel"));
    connect(cancelButton, &QPushButton::clicked,
            this, &QDialog::close);
    layout->addWidget(cancelButton);

    updateProgressText();

    foreach (RunControl *rc, runControls)
        connect(rc, &RunControl::finished, this, &WaitForStopDialog::runControlFinished);

    m_timer.start();
}

bool WaitForStopDialog::canceled()
{
    return !m_runControls.isEmpty();
}

void WaitForStopDialog::updateProgressText()
{
    QString text = tr("Waiting for applications to stop.") + QLatin1String("\n\n");
    QStringList names = Utils::transform(m_runControls, &RunControl::displayName);
    text += names.join(QLatin1Char('\n'));
    m_progressLabel->setText(text);
}

void WaitForStopDialog::runControlFinished()
{
    RunControl *rc = qobject_cast<RunControl *>(sender());
    m_runControls.removeOne(rc);

    if (m_runControls.isEmpty()) {
        if (m_timer.elapsed() < 1000)
            QTimer::singleShot(1000 - m_timer.elapsed(), this, &QDialog::close);
        else
            QDialog::close();
    } else {
        updateProgressText();
    }
}