/*
 *   Copyright (C) 2007, 2008, 2009, 2010 Ivan Cukic <ivan.cukic(at)kde.org>
 *   Copyright (C) 2007 Robert Knight <robertknight@gmail.com>
 *
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU Lesser/Library General Public License version 2,
 *   or (at your option) any later version, as published by the Free
 *   Software Foundation
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU Lesser/Library General Public License for more details
 *
 *   You should have received a copy of the GNU Lesser/Library General Public
 *   License along with this program; if not, write to the
 *   Free Software Foundation, Inc.,
 *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */

#include "BaseModel.h"

#include <QFileInfo>
#include <QApplication>

#include <KRun>
#include <KLocalizedString>
#include <KDesktopFile>
#include <KDebug>
#include <KFileItem>
#include <KIcon>
#include <KGlobal>
#include <KMimeType>
#include <KUrl>
#include <KToolInvocation>

#include <lancelot/models/PlasmaServiceListModel.h>

#include "Logger.h"

// K_CATALOG_LOADER(liblancelot-datamodels)

// K_CATALOG_LOADER fails for catalogs that have a dash in the name

class KCatalogLoader_liblancelot_datamodels
{
    public:
        KCatalogLoader_liblancelot_datamodels();
};

static KCatalogLoader_liblancelot_datamodels catalogLoader_liblancelot_datamodels;

KCatalogLoader_liblancelot_datamodels::KCatalogLoader_liblancelot_datamodels()
{
    qDebug() << "## Loading catalog liblancelot-datamodels";
    KGlobal::insertCatalog(QLatin1String("liblancelot-datamodels"));
}

// KCatalogLoader finished

namespace Lancelot {
namespace Models {

class ApplicationConnector::Private {
public:
    Private()
        : autohideEnabled(true)
    {}

    bool autohideEnabled;

    bool applicationNameFirst;
};

ApplicationConnector * ApplicationConnector::m_instance = NULL;

ApplicationConnector * ApplicationConnector::self()
{
    if (m_instance == NULL) {
        m_instance = new ApplicationConnector();
    }
    return m_instance;
}

void ApplicationConnector::setAutohideEnabled(bool value)
{
    d->autohideEnabled = value;
}

bool ApplicationConnector::autohideEnabled() const
{
    return d->autohideEnabled;
}

bool ApplicationConnector::applicationNameFirst() const
{
    return d->applicationNameFirst;
}

void ApplicationConnector::search(const QString & search)
{
    emit doSearch(search);
}

void ApplicationConnector::hide(bool immediate)
{
    if (d->autohideEnabled && !(QApplication::keyboardModifiers() & Qt::ControlModifier)) {
        emit doHide(immediate);
    }
}

ApplicationConnector::ApplicationConnector()
    : d(new Private())
{
    KConfig cfg("lancelotrc");
    KConfigGroup cfgGroup = cfg.group("Main");

    d->applicationNameFirst = cfgGroup.readEntry("applicationNameFirst", true);
}

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

class BaseModel::Private {
public:
    Private()
        : enableDefaultDnD(false),
          mimeData(NULL)
    {
    }

    bool enableDefaultDnD;
    QString title;
    QIcon icon;
    QMimeData * mimeData;
};

BaseModel::BaseModel(bool enableDefaultDnD)
    : d(new Private())
{
    d->enableDefaultDnD = enableDefaultDnD;
}

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

void BaseModel::activate(int index)
{
    QString data = itemAt(index).data.toString();

    Logger::self()->log("base-model", data);

    int result = -1;

    kDebug() << "starting:" << data;

    if (result != 0) {
        new KRun(KUrl(data), 0);
    }

    hideApplicationWindow();
}

void BaseModel::hideApplicationWindow()
{
    ApplicationConnector::self()->hide(true);
}

void BaseModel::changeApplicationSearchString(const QString & string)
{
    ApplicationConnector::self()->search(string);
}

int BaseModel::addServices(const QStringList & serviceNames)
{
    int result = 0;
    foreach (const QString & serviceAlternatives, serviceNames) {
        foreach (const QString & serviceName, serviceAlternatives.split('|')) {
            if (addService(serviceName)) {
                ++result;
                break;
            }
        }
    }
    return result;
}

bool BaseModel::addService(const QString & serviceName)
{
    const KService::Ptr service = KService::serviceByStorageId(serviceName);

    // qDebug() << "BaseModel::addService Applic:" << service->isValid() << " " << serviceName;

    return addService(service);
}

bool BaseModel::addService(const KService::Ptr & service)
{
    if (!service || !service->isValid()) {
        return false;
    }

    // kDebug() << service->name()
    //     << service->isApplication() << service->exec()
    //     << service->isValid();

    QString genericName = service->genericName();
    QString appName = service->name();

    if (ApplicationConnector::self()->applicationNameFirst()) {
        add(
            appName.isEmpty() ? genericName : appName,
            appName.isEmpty() ? "" : genericName,
            KIcon(service->icon()),
            service->entryPath()
        );
    } else {
        add(
            genericName.isEmpty() ? appName : genericName,
            genericName.isEmpty() ? "" : appName,
            KIcon(service->icon()),
            service->entryPath()
        );
    }
    return true;
}

int BaseModel::addUrls(const QStringList & urls)
{
    int result = 0;
    foreach (const QString & url, urls) {
        if (addUrl(url)) {
            ++result;
        }
    }
    return result;
}

bool BaseModel::addUrl(const QString & url)
{
    const KUrl kurl(url);
    return addUrl(kurl);
}

bool BaseModel::addUrl(const KUrl & url)
{
    // kDebug() << url;
    KFileItem fileItem(KFileItem::Unknown, KFileItem::Unknown, url);

    if (url.isLocalFile() && QFileInfo(url.path()).suffix() == "desktop") {
        // .desktop files may be services (type field == 'Application' or 'Service')
        // or they may be other types such as links.
        //
        // first look in the KDE service database to see if this file is a service,
        // otherwise represent it as a generic .desktop file

        KDesktopFile desktopFile(url.path());

        if ((desktopFile.readType() == "Service" || desktopFile.readType() == "Application")
                && addService(url.path())) {
            return true;
        }

        KUrl desktopUrl(desktopFile.readUrl());

        add(
            QFileInfo(url.path()).baseName(),
            desktopUrl.isLocalFile() ? desktopUrl.path() : desktopUrl.prettyUrl(),
            KIcon(desktopFile.readIcon()),
            // url.path() //desktopFile.readUrl()
            url.url()
        );
    } else {
        add(
            fileItem.text(),
            url.isLocalFile() ? url.path() : url.prettyUrl(),
            KIcon(fileItem.iconName()),
            url.url()
        );
    }

    return true;
}

// inserts
int BaseModel::insertServices(int where, const QStringList & serviceNames)
{
    int result = 0;
    foreach (const QString & serviceAlternatives, serviceNames) {
        foreach (const QString & serviceName, serviceAlternatives.split('|')) {
            if (insertService(where + result, serviceName)) {
                ++result;
                break;
            }
        }
    }
    return result;
}

bool BaseModel::insertService(int where, const QString & serviceName)
{
    const KService::Ptr service = KService::serviceByStorageId(serviceName);
    return insertService(where, service);
}

bool BaseModel::insertService(int where, const KService::Ptr & service)
{
    if (!service) {
        return false;
    }

    QString genericName = service->genericName();
    QString appName = service->name();

    insert(
        where,
        genericName.isEmpty() ? appName : genericName,
        genericName.isEmpty() ? "" : appName,
        KIcon(service->icon()),
        service->entryPath()
    );
    return true;
}

int BaseModel::insertUrls(int where, const QStringList & urls)
{
    int result = 0;
    foreach (const QString & url, urls) {
        if (insertUrl(where + result, url)) {
            ++result;
        }
    }
    return result;
}

bool BaseModel::insertUrl(int where, const QString & url)
{
    const KUrl kurl(url);
    return insertUrl(where, kurl);
}

bool BaseModel::insertUrl(int where, const KUrl & url)
{
    KFileItem fileItem(KFileItem::Unknown, KFileItem::Unknown, url);

    if (url.isLocalFile() && QFileInfo(url.path()).suffix() == "desktop") {
        // .desktop files may be services (type field == 'Application' or 'Service')
        // or they may be other types such as links.
        //
        // first look in the KDE service database to see if this file is a service,
        // otherwise represent it as a generic .desktop file

        KDesktopFile desktopFile(url.path());

        if ((desktopFile.readType() == "Service" || desktopFile.readType() == "Application")
                && insertService(where, url.path())) {
            return true;
        }

        KUrl desktopUrl(desktopFile.readUrl());

        insert(
            where,
            QFileInfo(url.path()).baseName(),
            desktopUrl.isLocalFile() ? desktopUrl.path() : desktopUrl.prettyUrl(),
            KIcon(desktopFile.readIcon()),
            // url.path() //desktopFile.readUrl()
            url.url()
        );
    } else {
        insert(
            where,
            fileItem.text(),
            url.isLocalFile() ? url.path() : url.prettyUrl(),
            KIcon(fileItem.iconName()),
            url.url()
        );
    }

    return true;
}

QMimeData * BaseModel::mimeForUrl(const KUrl & url)
{
    QMimeData * data = new QMimeData();
    data->setData("text/uri-list", url.url().toAscii());
    data->setData("text/plain", url.url().toAscii());
    return data;
}

QMimeData * BaseModel::mimeData(int index) const
{
    if (!d->enableDefaultDnD) {
        return NULL;
    }

    return BaseModel::mimeForUrl(itemAt(index).data.toString());
}

void BaseModel::setDropActions(int index,
            Qt::DropActions & actions, Qt::DropAction & defaultAction)
{
    Q_UNUSED(index);
    actions = Qt::CopyAction;
    defaultAction = Qt::CopyAction;
}


QMimeData * BaseModel::mimeForUrl(const QString & url)
{
    return mimeForUrl(KUrl(url));
}

QMimeData * BaseModel::mimeForService(const KService::Ptr & service)
{
    if (!service) return NULL;

    return mimeForUrl(service->entryPath());
}

QMimeData * BaseModel::mimeForService(const QString & serviceName)
{
    const KService::Ptr service = KService::serviceByStorageId(serviceName);
    return mimeForService(service);
}


QString BaseModel::selfTitle() const
{
    return d->title;
}

QIcon BaseModel::selfIcon() const
{
    return d->icon;
}

QMimeData * BaseModel::selfMimeData() const
{
    return d->mimeData;
}

void BaseModel::setSelfTitle(const QString & title)
{
    d->title = title;
}

void BaseModel::setSelfIcon(const QIcon & icon)
{
    d->icon = icon;
}

void BaseModel::setSelfMimeData(QMimeData * data)
{
    d->mimeData = data;
}

} // namespace Models
} // namespace Lancelot