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#include "vcsconfigurationpage.h"

#include "../vcsbaseconstants.h"

#include <coreplugin/icore.h>
#include <coreplugin/iversioncontrol.h>
#include <coreplugin/vcsmanager.h>
#include <projectexplorer/jsonwizard/jsonwizardfactory.h>

#include <extensionsystem/pluginmanager.h>
#include <utils/algorithm.h>
#include <utils/qtcassert.h>

#include <QPushButton>
#include <QVBoxLayout>
#include <QWizardPage>

using namespace Core;
using namespace ProjectExplorer;

namespace VcsBase {
namespace Internal {

VcsConfigurationPageFactory::VcsConfigurationPageFactory()
{
    setTypeIdsSuffix(QLatin1String("VcsConfiguration"));
}

Utils::WizardPage *VcsConfigurationPageFactory::create(JsonWizard *wizard, Id typeId,
                                                       const QVariant &data)
{
    Q_UNUSED(wizard);

    QTC_ASSERT(canCreate(typeId), return 0);

    QVariantMap tmp = data.toMap();
    const QString vcsId = tmp.value(QLatin1String("vcsId")).toString();
    QTC_ASSERT(!vcsId.isEmpty(), return 0);

    IVersionControl *vc = VcsManager::versionControl(Id::fromString(vcsId));
    QTC_ASSERT(vc, return 0);

    return new VcsConfigurationPage(vc);
}

bool VcsConfigurationPageFactory::validateData(Id typeId, const QVariant &data,
                                               QString *errorMessage)
{
    QTC_ASSERT(canCreate(typeId), return false);

    if (data.isNull() || data.type() != QVariant::Map) {
        *errorMessage = QCoreApplication::translate("ProjectExplorer::JsonWizard",
                                                    "\"data\" must be a JSON object for \"VcsConfiguration\" pages.");
        return false;
    }

    QVariantMap tmp = data.toMap();
    const QString vcsId = tmp.value(QLatin1String("vcsId")).toString();
    if (vcsId.isEmpty()) {
        *errorMessage = QCoreApplication::translate("ProjectExplorer::JsonWizard",
                                                    "\"VcsConfiguration\" page requires a \"vcsId\" set.");
        return false;
    }

    if (!VcsManager::versionControl(Id::fromString(vcsId))) {
        *errorMessage = QCoreApplication::translate("ProjectExplorer::JsonWizard",
                                                    "\"vcsId\" (\"%1\") is invalid for \"VcsConfiguration\" page. "
                                                    "Possible values are: %2.")
                .arg(vcsId)
                .arg(QStringList(Utils::transform(VcsManager::versionControls(), [](const IVersionControl *vc) {
                         return vc->id().toString();
                     })).join(QLatin1String(", ")));
        return false;
    }
    return true;
}

class VcsConfigurationPagePrivate
{
public:
    const IVersionControl *m_versionControl;
    QPushButton *m_configureButton;
};

} // namespace Internal

VcsConfigurationPage::VcsConfigurationPage(const IVersionControl *vc, QWidget *parent) :
    Utils::WizardPage(parent),
    d(new Internal::VcsConfigurationPagePrivate)
{
    QTC_ASSERT(vc, return);
    setTitle(tr("Configuration"));
    setSubTitle(tr("Please configure <b>%1</b> now.").arg(vc->displayName()));

    d->m_versionControl = vc;
    d->m_configureButton = new QPushButton(ICore::msgShowOptionsDialog(), this);

    QVBoxLayout *verticalLayout = new QVBoxLayout(this);
    verticalLayout->addWidget(d->m_configureButton);

    connect(d->m_versionControl, SIGNAL(configurationChanged()), SIGNAL(completeChanged()));
    connect(d->m_configureButton, SIGNAL(clicked()), SLOT(openConfiguration()));
}

VcsConfigurationPage::~VcsConfigurationPage()
{
    delete d;
}

bool VcsConfigurationPage::isComplete() const
{
    return d->m_versionControl->isConfigured();
}

void VcsConfigurationPage::openConfiguration()
{
    ICore::showOptionsDialog(Constants::VCS_SETTINGS_CATEGORY, d->m_versionControl->id(), this);
}

} // namespace VcsBase