/***************************************************************************

    Copyright 2008 Frederik Gladhorn <frederik.gladhorn@kdemail.net>

 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   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.                                   *
 *                                                                         *
 ***************************************************************************/

#include "leitnerview.h"

#include "editor/editor.h"
#include "leitnermodel.h"
#include "keduvocleitnerbox.h"
#include "prefs.h"
#include <KLocalizedString>
#include <KMessageBox>
#include <KInputDialog>
#include <KAction>
#include <KActionCollection>

LeitnerView::LeitnerView(Editor *parent) : QListView(parent)
{
    /*
        KAction *actionNewLesson = new KAction(this);
        parent->actionCollection()->addAction("new_lesson", actionNewLesson);
        actionNewLesson->setText(i18n("New Lesson"));
        actionNewLesson->setIcon(KIcon("lesson-add"));
        actionNewLesson->setWhatsThis(i18n("Add a new lesson to your document"));
        actionNewLesson->setToolTip(actionNewLesson->whatsThis());
        actionNewLesson->setStatusTip(actionNewLesson->whatsThis());

        KAction *actionRenameLesson = new KAction(this);
        parent->actionCollection()->addAction("rename_lesson", actionRenameLesson);
        actionRenameLesson->setText(i18n("Rename Lesson"));
        actionRenameLesson->setIcon(KIcon("edit-rename"));
        actionRenameLesson->setWhatsThis(i18n("Rename the selected lesson"));
        actionRenameLesson->setToolTip(actionRenameLesson->whatsThis());
        actionRenameLesson->setStatusTip(actionRenameLesson->whatsThis());

        KAction *actionDeleteLesson = new KAction(this);
        parent->actionCollection()->addAction("delete_lesson", actionDeleteLesson);
        actionDeleteLesson->setText(i18n("Delete Lesson"));
        actionDeleteLesson->setIcon(KIcon("lesson-remove"));
        actionDeleteLesson->setWhatsThis(i18n("Delete the selected lesson."));
        actionDeleteLesson->setToolTip(actionDeleteLesson->whatsThis());
        actionDeleteLesson->setStatusTip(actionDeleteLesson->whatsThis());


        connect(actionNewLesson, SIGNAL(triggered()),
                SLOT(slotCreateNewLesson()));
        connect(actionRenameLesson, SIGNAL(triggered()),
                SLOT(slotRename()));
        connect(actionDeleteLesson, SIGNAL(triggered()),
                SLOT(slotDeleteLesson()));

        // right cick menu for the lesson view:
        addAction(actionNewLesson);
        addAction(actionRenameLesson);
        addAction(actionDeleteLesson);
    */
}

void LeitnerView::currentChanged(const QModelIndex & current, const QModelIndex & previous)
{
    QListView::currentChanged(current, previous);

    if (current.isValid()) {
        KEduVocLeitnerBox *container = static_cast<KEduVocLeitnerBox*>(current.internalPointer());
        if (container) {
            emit selectedLeitnerBoxChanged(container);
            emit signalShowContainer(container);
        }
    }
}

void LeitnerView::selectionChanged(const QItemSelection & selected, const QItemSelection & deselected)
{
    QListView::selectionChanged(selected, deselected);

    if (selected.count() == 0) {
        return;
    }

    KEduVocLeitnerBox *container = static_cast<KEduVocLeitnerBox*>(selected.indexes().value(0).internalPointer());
    if (container) {
        emit selectedLeitnerBoxChanged(container);
    }
}

void LeitnerView::slotCreateLeitnerBox()
{
    QModelIndex selectedIndex = selectionModel()->currentIndex();

    if (!selectedIndex.isValid()) {
        selectedIndex = m_model->index(0, 0, QModelIndex());
    }

    QModelIndex modelIndex = m_model->appendContainer(selectedIndex);

    scrollTo(modelIndex);
    selectionModel()->setCurrentIndex(modelIndex, QItemSelectionModel::ClearAndSelect);
    edit(modelIndex);    // let the user type a new name for the lesson
}

void LeitnerView::slotDeleteLeitnerBox()
{
    QModelIndex selectedIndex = selectionModel()->currentIndex();

    if (selectedIndex.parent() == QModelIndex()) {
        KMessageBox::information(this, i18n("The root lesson cannot be deleted."));
        return;
    }

    KEduVocLesson* lesson = static_cast<KEduVocLesson*>(selectedIndex.internalPointer());

    int count = lesson->entryCount(KEduVocLesson::Recursive);

    if (count == 0 ||
            KMessageBox::warningYesNo(this, i18np("There is %1 word left in this lesson. Do you want to delete it?", "There are %1 words left in this lesson. Do you want to delete them?", count)) == KMessageBox::Yes) {
        m_model->deleteContainer(selectedIndex);
    }
}

void LeitnerView::setModel(LeitnerModel * model)
{
    QListView::setModel(model);
    m_model = model;
    setRootIndex(model->index(0, 0, model->index(0, 0, QModelIndex())));
}

#include "leitnerview.moc"


