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#include "changeselectiondialog.h"
#include "gitplugin.h"
#include "gitclient.h"

#include <QFileDialog>
#include <QMessageBox>

namespace Git {
namespace Internal {

ChangeSelectionDialog::ChangeSelectionDialog(QWidget *parent)
    : QDialog(parent)
{
    m_ui.setupUi(this);
    setWindowFlags(windowFlags() & ~Qt::WindowContextHelpButtonHint);
    connect(m_ui.workingDirectoryButton, SIGNAL(clicked()), this, SLOT(selectWorkingDirectory()));
    setWindowTitle(tr("Select a Git Commit"));
}

QString ChangeSelectionDialog::change() const
{
    return m_ui.changeNumberEdit->text();
}

QString ChangeSelectionDialog::workingDirectory() const
{
    return m_ui.workingDirectoryEdit->text();
}

void ChangeSelectionDialog::setWorkingDirectory(const QString &s)
{
    m_ui.workingDirectoryEdit->setText(QDir::toNativeSeparators(s));
    m_ui.changeNumberEdit->setFocus(Qt::ActiveWindowFocusReason);
    m_ui.changeNumberEdit->setText(QLatin1String("HEAD"));
    m_ui.changeNumberEdit->selectAll();
}

void ChangeSelectionDialog::selectWorkingDirectory()
{
    QString location = QFileDialog::getExistingDirectory(this, tr("Select Working Directory"),
                                                         m_ui.workingDirectoryEdit->text());
    if (location.isEmpty())
        return;

    // Verify that the location is a repository
    // We allow specifying a directory, which is not the head directory of the repository.
    // This is useful for git show commit:./file
    QString topLevel = GitPlugin::instance()->gitClient()->findRepositoryForDirectory(location);
    if (!topLevel.isEmpty())
        m_ui.workingDirectoryEdit->setText(location);
    else // Did not find a repo
        QMessageBox::critical(this, tr("Error"),
                              tr("Selected directory is not a Git repository"));
}

}
}