/*
    This file is part of Akonadi.

    Copyright (c) 2010 Stephen Kelly <steveire@gmail.com>

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

    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 General Public License for more details.

    You should have received a copy of the GNU 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.
*/

// READ THE README FILE

#include "tab6widget.h"

#include <QSplitter>
#include <QHBoxLayout>
#include <QTreeView>

#include "entitytreewidget.h"
#include "itemviewerwidget.h"
#include "mixedtreemodel.h"

#include <kselectionproxymodel.h>
#include <kcategorizedsortfilterproxymodel.h>
#include <kcategorizedview.h>
#include <kcategorydrawer.h>
#include <kcheckableproxymodel.h>

#include <AkonadiCore/entitytreemodel.h>
#include <AkonadiCore/entitymimetypefiltermodel.h>

class Tab6TreeWidget : public EntityTreeWidget
{
public:
    Tab6TreeWidget(QWidget *parent = Q_NULLPTR)
        : EntityTreeWidget(parent)
    {
    }

    /* reimp */ void connectTreeToModel(QTreeView *tree, Akonadi::EntityTreeModel *model) Q_DECL_OVERRIDE {
        m_collectionFilter = new Akonadi::EntityMimeTypeFilterModel(this);
        m_collectionFilter->addMimeTypeInclusionFilter(Akonadi::Collection::mimeType());
        m_collectionFilter->setSourceModel(model);
        m_collectionFilter->setHeaderGroup(Akonadi::EntityTreeModel::CollectionTreeHeaders);

        m_checkableProxy = new KCheckableProxyModel(this);
        m_checkableProxy->setSourceModel(m_collectionFilter);

        m_itemSelectionModel = new QItemSelectionModel(m_collectionFilter);
        m_checkableProxy->setSelectionModel(m_itemSelectionModel);

        tree->setModel(m_checkableProxy);
    }

    /* reimp */ QModelIndex mapToSource(const QModelIndex &idx) Q_DECL_OVERRIDE {
        return m_collectionFilter->mapToSource(idx);
    }

    Akonadi::EntityTreeModel *getETM() Q_DECL_OVERRIDE {
        MixedTreeModel *model = new MixedTreeModel(monitor(), this);
        return model;
    }

    QItemSelectionModel *itemSelectionModel() const
    {
        return m_itemSelectionModel;
    }

private:
    Akonadi::EntityMimeTypeFilterModel *m_collectionFilter;
    KCheckableProxyModel *m_checkableProxy;
    QItemSelectionModel *m_itemSelectionModel;

};

Tab6Widget::Tab6Widget(QWidget *parent, Qt::WindowFlags f)
    : QWidget(parent, f)
{
    QHBoxLayout *layout = new QHBoxLayout(this);
    QSplitter *splitter = new QSplitter(this);
    layout->addWidget(splitter);

    Tab6TreeWidget *etw = new Tab6TreeWidget(splitter);
    m_etw = etw;
    m_etw->init();

    QSplitter *rhsContainer = new QSplitter(Qt::Vertical, splitter);

    m_itemView = new QTreeView(rhsContainer);

    KSelectionProxyModel *selectionProxy = new KSelectionProxyModel(etw->itemSelectionModel(), this);
    selectionProxy->setFilterBehavior(KSelectionProxyModel::ChildrenOfExactSelection);
    selectionProxy->setSourceModel(m_etw->model());

    Akonadi::EntityMimeTypeFilterModel *itemFilter = new Akonadi::EntityMimeTypeFilterModel(this);
    itemFilter->setObjectName(QLatin1String("itemFilter"));
    itemFilter->addMimeTypeExclusionFilter(Akonadi::Collection::mimeType());
    itemFilter->setHeaderGroup(Akonadi::EntityTreeModel::ItemListHeaders);
    itemFilter->setSourceModel(selectionProxy);

    m_itemView->setModel(itemFilter);

    ItemViewerWidget *viewerWidget = new ItemViewerWidget(m_itemView->selectionModel(), rhsContainer);
}

