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#include "dockerconstants.h"
#include "dockersettings.h"

#include <coreplugin/icore.h>

#include <projectexplorer/projectexplorerconstants.h>

#include <utils/layoutbuilder.h>
#include <utils/qtcprocess.h>
#include <utils/qtcsettings.h>

using namespace Utils;

namespace Docker {
namespace Internal {

// DockerSettings

const char SETTINGS_KEY[] = "Docker";

static DockerSettings *theSettings = nullptr;

DockerSettings::DockerSettings()
{
    theSettings = this;
    setAutoApply(false);
    readSettings(Core::ICore::settings());

    imageListFilter.setSettingsKey("DockerListFilter");
    imageListFilter.setPlaceHolderText(tr("<filter>"));
    imageListFilter.setDisplayStyle(StringAspect::LineEditDisplay);
    imageListFilter.setLabelText(tr("Filter:"));

    imageList.setDisplayStyle(StringAspect::TextEditDisplay);
    imageList.setLabelText(tr("Images:"));

    connect(&imageListFilter, &BaseAspect::changed, this, &DockerSettings::updateImageList);
}

DockerSettings *DockerSettings::instance()
{
    return theSettings;
}

void DockerSettings::writeSettings(QSettings *settings) const
{
    settings->remove(SETTINGS_KEY);
    settings->beginGroup(SETTINGS_KEY);
    forEachAspect([settings](BaseAspect *aspect) {
        QtcSettings::setValueWithDefault(settings, aspect->settingsKey(),
                                         aspect->value(), aspect->defaultValue());
    });
    settings->endGroup();
}

void DockerSettings::updateImageList()
{
    QtcProcess process;
    process.setCommand({"docker", {"search", imageListFilter.value()}});

    connect(&process, &QtcProcess::finished, this, [&process, this] {
        const QString data = QString::fromUtf8(process.readAllStandardOutput());
        imageList.setValue(data);
    });

    process.start();
    process.waitForFinished();
}

void DockerSettings::readSettings(const QSettings *settings)
{
    const QString keyRoot = QString(SETTINGS_KEY) + '/';
    forEachAspect([settings, keyRoot](BaseAspect *aspect) {
        QString key = aspect->settingsKey();
        const QVariant value = settings->value(keyRoot + key, aspect->defaultValue());
        aspect->setValue(value);
    });
}

// DockerOptionsPage

DockerOptionsPage::DockerOptionsPage(DockerSettings *settings)
{
    setId(Constants::DOCKER_SETTINGS_ID);
    setDisplayName(DockerSettings::tr("Docker"));
    setCategory(ProjectExplorer::Constants::DEVICE_SETTINGS_CATEGORY);
    setDisplayCategory(QCoreApplication::translate("ProjectExplorer", "Devices"));
    setCategoryIconPath(":/projectexplorer/images/settingscategory_devices.png");
    setSettings(settings);

    setLayouter([settings](QWidget *widget) {
        using namespace Layouting;
        DockerSettings &s = *settings;

        Column {
            Group {
                Title(DockerSettings::tr("Search Images on Docker Hub")),
                Form {
                    s.imageListFilter,
                    s.imageList
                },
            },
            Stretch()
        }.attachTo(widget);
    });
}

} // Internal
} // Docker