/*
    Copyright (c) 2008 Volker Krause <vkrause@kde.org>

    This library is free software; you can redistribute it and/or modify it
    under the terms of the GNU Library General Public License as published by
    the Free Software Foundation; either version 2 of the License, or (at your
    option) any later version.

    This library 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 Library General Public
    License for more details.

    You should have received a copy of the GNU Library General Public License
    along with this library; see the file COPYING.LIB.  If not, write to the
    Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
    02110-1301, USA.
*/

#include "cachepolicypage.h"

#include "ui_cachepolicypage.h"

#include "cachepolicy.h"
#include "collection.h"
#include "collectionutils_p.h"

using namespace Akonadi;

class CachePolicyPage::Private
{
public:
    Private()
        : mUi(new Ui::CachePolicyPage)
    {
    }

    ~Private()
    {
        delete mUi;
    }

    void slotIntervalValueChanged(int);
    void slotCacheValueChanged(int);
    void slotRetrievalOptionsGroupBoxDisabled(bool disable);

    Ui::CachePolicyPage *mUi;
};

void CachePolicyPage::Private::slotIntervalValueChanged(int interval)
{
    mUi->checkInterval->setSuffix(QLatin1Char(' ') + i18np("minute", "minutes", interval));
}

void CachePolicyPage::Private::slotCacheValueChanged(int interval)
{
    mUi->localCacheTimeout->setSuffix(QLatin1Char(' ') + i18np("minute", "minutes", interval));
}

void CachePolicyPage::Private::slotRetrievalOptionsGroupBoxDisabled(bool disable)
{
    mUi->retrievalOptionsGroupBox->setDisabled(disable);
    if (!disable) {
        mUi->label->setEnabled(mUi->retrieveOnlyHeaders->isChecked());
        mUi->localCacheTimeout->setEnabled(mUi->retrieveOnlyHeaders->isChecked());
    }
}

CachePolicyPage::CachePolicyPage(QWidget *parent, GuiMode mode)
    : CollectionPropertiesPage(parent)
    , d(new Private)
{
    setObjectName(QLatin1String("Akonadi::CachePolicyPage"));
    setPageTitle(i18n("Retrieval"));

    d->mUi->setupUi(this);
    connect(d->mUi->checkInterval, SIGNAL(valueChanged(int)),
            SLOT(slotIntervalValueChanged(int)));
    connect(d->mUi->localCacheTimeout, SIGNAL(valueChanged(int)),
            SLOT(slotCacheValueChanged(int)));
    connect(d->mUi->inherit, SIGNAL(toggled(bool)),
            SLOT(slotRetrievalOptionsGroupBoxDisabled(bool)));
    if (mode == AdvancedMode) {
        d->mUi->stackedWidget->setCurrentWidget(d->mUi->rawPage);
    }
}

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

bool Akonadi::CachePolicyPage::canHandle(const Collection &collection) const
{
    return !collection.isVirtual();
}

void CachePolicyPage::load(const Collection &collection)
{
    const CachePolicy policy = collection.cachePolicy();

    int interval = policy.intervalCheckTime();
    if (interval == -1) {
        interval = 0;
    }

    int cache = policy.cacheTimeout();
    if (cache == -1) {
        cache = 0;
    }

    d->mUi->inherit->setChecked(policy.inheritFromParent());
    d->mUi->checkInterval->setValue(interval);
    d->mUi->localCacheTimeout->setValue(cache);
    d->mUi->syncOnDemand->setChecked(policy.syncOnDemand());
    d->mUi->localParts->setItems(policy.localParts());

    const bool fetchBodies = policy.localParts().contains(QLatin1String("RFC822"));
    d->mUi->retrieveFullMessages->setChecked(fetchBodies);

    //done explicitly to disable/enabled widgets
    d->mUi->retrieveOnlyHeaders->setChecked(!fetchBodies);
    d->mUi->label->setEnabled(!fetchBodies);
    d->mUi->localCacheTimeout->setEnabled(!fetchBodies);
}

void CachePolicyPage::save(Collection &collection)
{
    int interval = d->mUi->checkInterval->value();
    if (interval == 0) {
        interval = -1;
    }

    int cache = d->mUi->localCacheTimeout->value();
    if (cache == 0) {
        cache = -1;
    }

    CachePolicy policy = collection.cachePolicy();
    policy.setInheritFromParent(d->mUi->inherit->isChecked());
    policy.setIntervalCheckTime(interval);
    policy.setCacheTimeout(cache);
    policy.setSyncOnDemand(d->mUi->syncOnDemand->isChecked());

    QStringList localParts = d->mUi->localParts->items();

    // Unless we are in "raw" mode, add "bodies" to the list of message
    // parts to keep around locally, if the user selected that, or remove
    // it otherwise. In "raw" mode we simple use the values from the list
    // view.
    if (d->mUi->stackedWidget->currentWidget() != d->mUi->rawPage) {
        if (d->mUi->retrieveFullMessages->isChecked() &&
            !localParts.contains(QLatin1String("RFC822"))) {
            localParts.append(QLatin1String("RFC822"));
        } else if (!d->mUi->retrieveFullMessages->isChecked() &&
                   localParts.contains(QLatin1String("RFC822"))) {
            localParts.removeAll(QLatin1String("RFC822"));
        }
    }

    policy.setLocalParts(localParts);
    collection.setCachePolicy(policy);
}

#include "moc_cachepolicypage.cpp"
