/*
    Copyright (c) 2013-2019 Montel Laurent <montel@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 "mergecontactsdialog.h"
#include "manualmerge/mergecontactwidget.h"
#include "widgets/mergecontactinfowidget.h"
#include "job/mergecontactsjob.h"
#include "widgets/mergecontacterrorlabel.h"
#include "widgets/mergecontactselectinformationscrollarea.h"

#include <AkonadiCore/Item>

#include <KConfigGroup>
#include <KSharedConfig>
#include <KLocalizedString>

#include <QDialogButtonBox>
#include <QPushButton>
#include <QVBoxLayout>
#include <QStackedWidget>

using namespace KABMergeContacts;
MergeContactsDialog::MergeContactsDialog(QWidget *parent)
    : QDialog(parent)
{
    setWindowTitle(i18n("Select Contacts to merge"));
    mButtonBox = new QDialogButtonBox(QDialogButtonBox::Close, this);
    mButtonBox->setObjectName(QStringLiteral("buttonbox"));
    QVBoxLayout *mainLayout = new QVBoxLayout(this);
    connect(mButtonBox, &QDialogButtonBox::rejected, this, &MergeContactsDialog::reject);
    readConfig();

    mStackedWidget = new QStackedWidget(this);
    mStackedWidget->setObjectName(QStringLiteral("stackedwidget"));
    mainLayout->addWidget(mStackedWidget);
    mainLayout->addWidget(mButtonBox);

    mNoEnoughContactSelected = new KABMergeContacts::MergeContactErrorLabel(KABMergeContacts::MergeContactErrorLabel::NotEnoughContactsSelected);
    mNoEnoughContactSelected->setObjectName(QStringLiteral("notenoughcontactselected"));
    mStackedWidget->addWidget(mNoEnoughContactSelected);

    mNoContactSelected = new KABMergeContacts::MergeContactErrorLabel(MergeContactErrorLabel::NoContactSelected, this);
    mNoContactSelected->setObjectName(QStringLiteral("nocontactselected"));
    mStackedWidget->addWidget(mNoContactSelected);

    mManualMergeResultWidget = new KABMergeContacts::MergeContactWidget(this);
    mManualMergeResultWidget->setObjectName(QStringLiteral("manualmergeresultwidget"));
    mStackedWidget->addWidget(mManualMergeResultWidget);
    connect(mManualMergeResultWidget, &MergeContactWidget::customizeMergeContact, this, &MergeContactsDialog::slotCustomizeMergeContact);
    connect(mManualMergeResultWidget, &MergeContactWidget::contactMerged, this, &MergeContactsDialog::slotContactMerged);

    mSelectInformation = new KABMergeContacts::MergeContactSelectInformationScrollArea(this);
    mSelectInformation->setObjectName(QStringLiteral("selectioninformation"));
    mStackedWidget->addWidget(mSelectInformation);

    mMergeContactInfo = new KABMergeContacts::MergeContactInfoWidget;
    mMergeContactInfo->setObjectName(QStringLiteral("mergecontactinfowidget"));
    mStackedWidget->addWidget(mMergeContactInfo);

    mStackedWidget->setCurrentWidget(mNoContactSelected);
}

MergeContactsDialog::~MergeContactsDialog()
{
    writeConfig();
}

void MergeContactsDialog::setContacts(const Akonadi::Item::List &list)
{
    if (list.isEmpty()) {
        mStackedWidget->setCurrentWidget(mNoContactSelected);
    } else if (list.count() < 2) {
        mStackedWidget->setCurrentWidget(mNoEnoughContactSelected);
    } else {
        mManualMergeResultWidget->setContacts(list);
        mStackedWidget->setCurrentWidget(mManualMergeResultWidget);
    }
    mButtonBox->button(QDialogButtonBox::Close)->setEnabled(true);
}

void MergeContactsDialog::slotCustomizeMergeContact(const Akonadi::Item::List &lst, MergeContacts::ConflictInformations conflictType, const Akonadi::Collection &col)
{
    mSelectInformation->setContacts(conflictType, lst, col);
    mStackedWidget->setCurrentWidget(mSelectInformation);
}

void MergeContactsDialog::readConfig()
{
    KConfigGroup grp(KSharedConfig::openConfig(), "MergeContactsDialog");
    const QSize size = grp.readEntry("Size", QSize(300, 200));
    if (size.isValid()) {
        resize(size);
    }
}

void MergeContactsDialog::writeConfig()
{
    KConfigGroup grp(KSharedConfig::openConfig(), "MergeContactsDialog");
    grp.writeEntry("Size", size());
    grp.sync();
}

void MergeContactsDialog::slotContactMerged(const Akonadi::Item &item)
{
    mMergeContactInfo->setContact(item);
    mStackedWidget->setCurrentWidget(mMergeContactInfo);
}
