/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company.  For licensing terms and
** conditions see http://www.qt.io/terms-conditions.  For further information
** use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file.  Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, The Qt Company gives you certain additional
** rights.  These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
****************************************************************************/

#include "settingspage.h"
#include "gitsettings.h"
#include "gitplugin.h"
#include "gitclient.h"

#include <vcsbase/vcsbaseconstants.h>
#include <utils/hostosinfo.h>
#include <coreplugin/messagebox.h>

#include <QDir>
#include <QDebug>
#include <QTextStream>

namespace Git {
namespace Internal {

SettingsPageWidget::SettingsPageWidget(QWidget *parent) :
    QWidget(parent)
{
    m_ui.setupUi(this);
    if (Utils::HostOsInfo::isWindowsHost()) {
        const QByteArray currentHome = qgetenv("HOME");
        const QString toolTip
                = tr("Set the environment variable HOME to \"%1\"\n(%2).\n"
                     "This causes msysgit to look for the SSH-keys in that location\n"
                     "instead of its installation directory when run outside git bash.").
                arg(QDir::homePath(),
                    currentHome.isEmpty() ? tr("not currently set") :
                            tr("currently set to \"%1\"").arg(QString::fromLocal8Bit(currentHome)));
        m_ui.winHomeCheckBox->setToolTip(toolTip);
    } else {
        m_ui.winHomeCheckBox->setVisible(false);
    }
    m_ui.repBrowserCommandPathChooser->setExpectedKind(Utils::PathChooser::ExistingCommand);
    m_ui.repBrowserCommandPathChooser->setHistoryCompleter(QLatin1String("Git.RepoCommand.History"));
    m_ui.repBrowserCommandPathChooser->setPromptDialogTitle(tr("Git Repository Browser Command"));
}

GitSettings SettingsPageWidget::settings() const
{
    GitSettings rc;
    rc.setValue(GitSettings::pathKey, m_ui.pathLineEdit->text());
    rc.setValue(GitSettings::logCountKey, m_ui.logCountSpinBox->value());
    rc.setValue(GitSettings::timeoutKey, m_ui.timeoutSpinBox->value());
    rc.setValue(GitSettings::pullRebaseKey, m_ui.pullRebaseCheckBox->isChecked());
    rc.setValue(GitSettings::showTagsKey, m_ui.showTagsCheckBox->isChecked());
    rc.setValue(GitSettings::winSetHomeEnvironmentKey, m_ui.winHomeCheckBox->isChecked());
    rc.setValue(GitSettings::gitkOptionsKey, m_ui.gitkOptionsLineEdit->text().trimmed());
    rc.setValue(GitSettings::repositoryBrowserCmd, m_ui.repBrowserCommandPathChooser->path().trimmed());
    return rc;
}

void SettingsPageWidget::setSettings(const GitSettings &s)
{
    m_ui.pathLineEdit->setText(s.stringValue(GitSettings::pathKey));
    m_ui.logCountSpinBox->setValue(s.intValue(GitSettings::logCountKey));
    m_ui.timeoutSpinBox->setValue(s.intValue(GitSettings::timeoutKey));
    m_ui.pullRebaseCheckBox->setChecked(s.boolValue(GitSettings::pullRebaseKey));
    m_ui.showTagsCheckBox->setChecked(s.boolValue(GitSettings::showTagsKey));
    m_ui.winHomeCheckBox->setChecked(s.boolValue(GitSettings::winSetHomeEnvironmentKey));
    m_ui.gitkOptionsLineEdit->setText(s.stringValue(GitSettings::gitkOptionsKey));
    m_ui.repBrowserCommandPathChooser->setPath(s.stringValue(GitSettings::repositoryBrowserCmd));
}

// -------- SettingsPage
SettingsPage::SettingsPage() :
    m_widget(0)
{
    setId(VcsBase::Constants::VCS_ID_GIT);
    setDisplayName(tr("Git"));
}

QWidget *SettingsPage::widget()
{
    if (!m_widget) {
        m_widget = new SettingsPageWidget;
        m_widget->setSettings(GitPlugin::instance()->settings());
    }
    return m_widget;
}

void SettingsPage::apply()
{
    const GitSettings newSettings = m_widget->settings();
    // Warn if git cannot be found in path if the widget is on top
    if (m_widget->isVisible()) {
        bool gitFoundOk;
        QString errorMessage;
        newSettings.gitExecutable(&gitFoundOk, &errorMessage);
        if (!gitFoundOk)
            Core::AsynchronousMessageBox::warning(tr("Git Settings"), errorMessage);
    }

    GitPlugin::instance()->setSettings(newSettings);
}

void SettingsPage::finish()
{
    delete m_widget;
}

}
}
