/*********
*
* In the name of the Father, and of the Son, and of the Holy Spirit.
*
* This file is part of BibleTime's source code, http://www.bibletime.info/.
*
* Copyright 1999-2016 by the BibleTime developers.
* The BibleTime source code is licensed under the GNU General Public License
* version 2.0.
*
**********/

#include "frontend/btopenworkaction.h"

#include "backend/bookshelfmodel/btbookshelffiltermodel.h"
#include "backend/managers/cswordbackend.h"
#include "bibletimeapp.h"
#include "frontend/btbookshelfgroupingmenu.h"
#include "util/btconnect.h"
#include "util/cresmgr.h"


BtOpenWorkActionMenu::BtOpenWorkActionMenu(const QString &groupingConfigKey,
                                           QWidget *parent)
    : BtMenuView(parent)
    , m_treeModel(nullptr)
    , m_postFilterModel(nullptr)
    , m_groupingMenu(nullptr)
    , m_groupingConfigKey(groupingConfigKey)
{
    // Setup models:
    m_treeModel = new BtBookshelfTreeModel(groupingConfigKey, this);
    m_postFilterModel = new BtBookshelfFilterModel(this);
    m_postFilterModel->setSourceModel(m_treeModel);
    setModel(m_postFilterModel);

    BT_CONNECT(this, SIGNAL(triggered(QModelIndex)),
               this, SLOT(slotIndexTriggered(QModelIndex)));
}

void BtOpenWorkActionMenu::setSourceModel(QAbstractItemModel *model) {
    m_treeModel->setSourceModel(model);
}

void BtOpenWorkActionMenu::retranslateUi() {
    if (!m_groupingMenu)
        return;
    m_groupingMenu->setTitle(tr("&Grouping order"));
    m_groupingMenu->setStatusTip(tr("Sets the grouping order for the items in "
                                    "this menu."));
}

void BtOpenWorkActionMenu::postBuildMenu() {
    addSeparator();
    m_groupingMenu = new BtBookshelfGroupingMenu(false, this);

    BT_CONNECT(m_groupingMenu,
               SIGNAL(signalGroupingOrderChanged(
                              BtBookshelfTreeModel::Grouping)),
               this,
               SLOT(slotGroupingActionTriggered(
                            BtBookshelfTreeModel::Grouping)));

    retranslateUi();
    addMenu(m_groupingMenu);
}

void BtOpenWorkActionMenu::slotIndexTriggered(const QModelIndex &index) {
    static const int MPR = BtBookshelfModel::ModulePointerRole;

    CSwordModuleInfo *i;
    i = static_cast<CSwordModuleInfo *>(model()->data(index, MPR).value<void*>());
    if (i != nullptr) {
        emit triggered(i);
    }
}

void BtOpenWorkActionMenu::slotGroupingActionTriggered(const BtBookshelfTreeModel::Grouping &grouping) {
    m_treeModel->setGroupingOrder(grouping);
    grouping.saveTo(m_groupingConfigKey);
}

BtOpenWorkAction::BtOpenWorkAction(const QString &groupingConfigKey,
                                   QObject *parent)
    : QAction(parent)
{
    m_menu = new BtOpenWorkActionMenu(groupingConfigKey);
    m_menu->setSourceModel(CSwordBackend::instance()->model());

    setMenu(m_menu);
    setIcon(CResMgr::mainWindow::icon_openAction());
    retranslateUi();
    slotModelChanged();

    BtBookshelfFilterModel *filterModel = m_menu->postFilterModel();
    BT_CONNECT(m_menu, SIGNAL(triggered(CSwordModuleInfo *)),
               this,   SIGNAL(triggered(CSwordModuleInfo *)));
    BT_CONNECT(filterModel, SIGNAL(layoutChanged()),
               this,        SLOT(slotModelChanged()));
    BT_CONNECT(filterModel, SIGNAL(modelReset()),
               this,        SLOT(slotModelChanged()));
    BT_CONNECT(filterModel, SIGNAL(rowsInserted(QModelIndex, int, int)),
               this,        SLOT(slotModelChanged()));
    BT_CONNECT(filterModel, SIGNAL(rowsRemoved(QModelIndex, int, int)),
               this,        SLOT(slotModelChanged()));
}

BtOpenWorkAction::~BtOpenWorkAction() {
    delete m_menu;
}

void BtOpenWorkAction::retranslateUi() {
    setText(tr("&Open work"));
}

void BtOpenWorkAction::slotModelChanged() {
    setEnabled(m_menu->postFilterModel()->rowCount() > 0);
}