/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */

/*

 * This file is part of the LibreOffice project.

 *

 * This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/.

 *

 * This file incorporates work covered by the following license notice:

 *

 *   Licensed to the Apache Software Foundation (ASF) under one or more

 *   contributor license agreements. See the NOTICE file distributed

 *   with this work for additional information regarding copyright

 *   ownership. The ASF licenses this file to you under the Apache

 *   License, Version 2.0 (the "License"); you may not use this file

 *   except in compliance with the License. You may obtain a copy of

 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .

 */

#include <tabwin.hxx>

#include <fmservs.hxx>

#include <svl/itemset.hxx>

#include <svx/strings.hrc>

#include <svx/svxids.hrc>

#include <com/sun/star/beans/XPropertySet.hpp>

#include <com/sun/star/sdb/CommandType.hpp>

#include <com/sun/star/sdbc/XConnection.hpp>

#include <comphelper/processfactory.hxx>

#include <comphelper/types.hxx>

#include <helpids.h>

#include <svx/fmshell.hxx>

#include <fmshimp.hxx>

#include <fmprop.hxx>

#include <svx/dialmgr.hxx>

#include <sfx2/bindings.hxx>

#include <sfx2/objitem.hxx>

#include <sfx2/frame.hxx>

#include <svx/dataaccessdescriptor.hxx>

#include <vcl/weld/Builder.hxx>

#include <vcl/weld/Dialog.hxx>

#include <vcl/weld/weldutils.hxx>

#include <comphelper/diagnose_ex.hxx>

#include <tabwin.hrc>

#include <utility>

const tools::Long STD_WIN_SIZE_X = 120;

const tools::Long STD_WIN_SIZE_Y = 150;

using namespace ::com::sun::star::sdbc;

using namespace ::com::sun::star::sdb;

using namespace ::com::sun::star::uno;

using namespace ::com::sun::star::datatransfer;

using namespace ::com::sun::star::beans;

using namespace ::com::sun::star::lang;

using namespace ::com::sun::star::form;

using namespace ::com::sun::star::container;

using namespace ::com::sun::star;

using namespace ::svxform;

using namespace ::svx;

using namespace ::dbtools;

struct ColumnInfo

{

    OUString sColumnName;

    explicit ColumnInfo(OUString i_sColumnName)

        : sColumnName(std::move(i_sColumnName))

    {

    }

};

void FmFieldWin::addToList(const uno::Reference< container::XNameAccess>& i_xColumns )

{

    const uno::Sequence< OUString > aEntries = i_xColumns->getElementNames();

    for ( const OUString& rEntry : aEntries )

    {

        uno::Reference< beans::XPropertySet> xColumn(i_xColumns->getByName(rEntry),UNO_QUERY_THROW);

        OUString sLabel;

        if ( xColumn->getPropertySetInfo()->hasPropertyByName(FM_PROP_LABEL) )

            xColumn->getPropertyValue(FM_PROP_LABEL) >>= sLabel;

        m_aListBoxData.emplace_back(new ColumnInfo(rEntry));

        OUString sId(weld::toId(m_aListBoxData.back().get()));

        if ( !sLabel.isEmpty() )

            m_xListBox->append(sId, sLabel);

        else

            m_xListBox->append(sId, rEntry);

    }

}

IMPL_LINK(FmFieldWin, DragBeginHdl, bool&, rUnsetDragIcon, bool)

{

    rUnsetDragIcon = false;

    ColumnInfo* pSelected = weld::fromId<ColumnInfo*>(m_xListBox->get_selected_id());

    if (!pSelected)

    {

        // no drag without a field

        return true;

    }

    svx::ODataAccessDescriptor aDescriptor;

    aDescriptor[ DataAccessDescriptorProperty::DataSource ] <<= GetDatabaseName();

    aDescriptor[ DataAccessDescriptorProperty::Connection ] <<= GetConnection().getTyped();

    aDescriptor[ DataAccessDescriptorProperty::Command ]    <<= GetObjectName();

    aDescriptor[ DataAccessDescriptorProperty::CommandType ]<<= GetObjectType();

    aDescriptor[ DataAccessDescriptorProperty::ColumnName ] <<= pSelected->sColumnName;

    m_xHelper->setDescriptor(aDescriptor);

    return false;

}

FmFieldWin::FmFieldWin(SfxBindings* _pBindings, SfxChildWindow* _pMgr, weld::Window* _pParent)

    : SfxModelessDialogController(_pBindings, _pMgr, _pParent, u"svx/ui/formfielddialog.ui"_ustr, u"FormFieldDialog"_ustr)

    , SfxControllerItem(SID_FM_FIELDS_CONTROL, *_pBindings)

    , comphelper::OPropertyChangeListener2()

    , m_xListBox(m_xBuilder->weld_tree_view(u"treeview"_ustr))

    , m_nObjectType(0)

{

    m_xDialog->set_help_id(HID_FIELD_SEL_WIN);

    m_xListBox->set_help_id(HID_FIELD_SEL);

    m_xListBox->connect_item_activated(LINK(this, FmFieldWin, RowActivatedHdl));

    m_xHelper.set(new OColumnTransferable(

        ColumnTransferFormatFlags::FIELD_DESCRIPTOR | ColumnTransferFormatFlags::CONTROL_EXCHANGE | ColumnTransferFormatFlags::COLUMN_DESCRIPTOR

    ));

    rtl::Reference<TransferDataContainer> xHelper(m_xHelper);

    m_xListBox->enable_drag_source(xHelper, DND_ACTION_COPY);

    m_xListBox->connect_drag_begin(LINK(this, FmFieldWin, DragBeginHdl));

    UpdateContent(nullptr);

    m_xDialog->set_size_request(STD_WIN_SIZE_X, STD_WIN_SIZE_Y);

}

FmFieldWin::~FmFieldWin()

{

    {

        std::unique_lock g(m_aMutex);

        if (m_xChangeListener.is())

        {

            m_xChangeListener->dispose(g);

            m_xChangeListener.clear();

        }

    }

    ::SfxControllerItem::dispose();

}

IMPL_LINK_NOARG(FmFieldWin, RowActivatedHdl, const weld::TreeIter&, bool)

{

    return createSelectionControls();

}

bool FmFieldWin::createSelectionControls()

{

    ColumnInfo* pSelected = weld::fromId<ColumnInfo*>(m_xListBox->get_selected_id());

    if (pSelected)

    {

        // build a descriptor for the currently selected field

        ODataAccessDescriptor aDescr;

        aDescr.setDataSource(GetDatabaseName());

        aDescr[ DataAccessDescriptorProperty::Connection ]  <<= GetConnection().getTyped();

        aDescr[ DataAccessDescriptorProperty::Command ]     <<= GetObjectName();

        aDescr[ DataAccessDescriptorProperty::CommandType ] <<= GetObjectType();

        aDescr[ DataAccessDescriptorProperty::ColumnName ]  <<= pSelected->sColumnName;

        // transfer this to the SFX world

        SfxUnoAnyItem aDescriptorItem( SID_FM_DATACCESS_DESCRIPTOR, Any( aDescr.createPropertyValueSequence() ) );

        const SfxPoolItem* pArgs[] =

        {

            &aDescriptorItem, nullptr

        };

        // execute the create slot

        GetBindings().Execute( SID_FM_CREATE_FIELDCONTROL, pArgs );

    }

    return nullptr != pSelected;

}

void FmFieldWin::_propertyChanged(const css::beans::PropertyChangeEvent& evt)

{

    css::uno::Reference< css::form::XForm >  xForm(evt.Source, css::uno::UNO_QUERY);

    UpdateContent(xForm);

}

void FmFieldWin::StateChangedAtToolBoxControl(sal_uInt16 nSID, SfxItemState eState, const SfxPoolItem* pState)

{

    if (!pState  || SID_FM_FIELDS_CONTROL != nSID)

        return;

    if (eState >= SfxItemState::DEFAULT)

    {

        FmFormShell* pShell = dynamic_cast<FmFormShell*>( static_cast<const SfxObjectItem*>(pState)->GetShell() );

        UpdateContent(pShell);

    }

    else

        UpdateContent(nullptr);

}

void FmFieldWin::UpdateContent(FmFormShell const * pShell)

{

    m_xListBox->clear();

    m_aListBoxData.clear();

    OUString aTitle(SvxResId(RID_STR_FIELDSELECTION));

    m_xDialog->set_title(aTitle);

    if (!pShell || !pShell->GetImpl())

        return;

    Reference<XForm> const xForm = pShell->GetImpl()->getCurrentForm_Lock();

    if ( xForm.is() )

        UpdateContent( xForm );

}

void FmFieldWin::UpdateContent(const css::uno::Reference< css::form::XForm > & xForm)

{

    try

    {

        // delete ListBox

        m_xListBox->clear();

        m_aListBoxData.clear();

        OUString aTitle(SvxResId(RID_STR_FIELDSELECTION));

        m_xDialog->set_title(aTitle);

        if (!xForm.is())

            return;

        Reference< XPropertySet >  xSet(xForm, UNO_QUERY);

        m_aObjectName   = ::comphelper::getString(xSet->getPropertyValue(FM_PROP_COMMAND));

        m_aDatabaseName = ::comphelper::getString(xSet->getPropertyValue(FM_PROP_DATASOURCE));

        m_nObjectType   = ::comphelper::getINT32(xSet->getPropertyValue(FM_PROP_COMMANDTYPE));

        // get the connection of the form

        m_aConnection.reset(

            connectRowset( Reference< XRowSet >( xForm, UNO_QUERY ), ::comphelper::getProcessComponentContext(), nullptr ),

            SharedConnection::NoTakeOwnership

        );

        // TODO: When incompatible changes (such as extending the "virtualdbtools" interface by ensureRowSetConnection)

        // are allowed, again, we should change this: dbtools should consistently use SharedConnection all over

        // the place, and connectRowset should be replaced with ensureRowSetConnection

        // get the fields of the object

        if ( m_aConnection.is() && !m_aObjectName.isEmpty() )

        {

            Reference< XComponent > xKeepFieldsAlive;

            Reference< XNameAccess > xColumns = getFieldsByCommandDescriptor( m_aConnection, m_nObjectType, m_aObjectName,xKeepFieldsAlive );

            if ( xColumns.is() )

                addToList(xColumns);

        }

        // set prefix

        OUString  aPrefix;

        switch (m_nObjectType)

        {

            case CommandType::TABLE:

                aPrefix = SvxResId(RID_RSC_TABWIN_PREFIX[0]);

                break;

            case CommandType::QUERY:

                aPrefix = SvxResId(RID_RSC_TABWIN_PREFIX[1]);

                break;

            default:

                aPrefix = SvxResId(RID_RSC_TABWIN_PREFIX[2]);

                break;

        }

        // listen for changes at ControlSource in PropertySet

        std::unique_lock g(m_aMutex);

        if (m_xChangeListener.is())

        {

            m_xChangeListener->dispose(g);

            m_xChangeListener.clear();

        }

        m_xChangeListener = new ::comphelper::OPropertyChangeMultiplexer2(m_aMutex, g, this, xSet);

        m_xChangeListener->addProperty(FM_PROP_DATASOURCE);

        m_xChangeListener->addProperty(FM_PROP_COMMAND);

        m_xChangeListener->addProperty(FM_PROP_COMMANDTYPE);

        // set title

        aTitle += " " + aPrefix + " " + m_aObjectName;

        m_xDialog->set_title(aTitle);

    }

    catch( const Exception& )

    {

        TOOLS_WARN_EXCEPTION( "svx", "FmTabWin::UpdateContent" );

    }

}

void FmFieldWin::FillInfo( SfxChildWinInfo& rInfo ) const

{

    rInfo.bVisible = false;

}

SFX_IMPL_MODELESSDIALOGCONTOLLER(FmFieldWinMgr, SID_FM_ADD_FIELD)

FmFieldWinMgr::FmFieldWinMgr(vcl::Window* _pParent, sal_uInt16 _nId, SfxBindings& rBindings,

                             const SfxChildWinInfo& rInfo)

    : SfxChildWindow(_pParent, _nId)

{

    auto xDlg = std::make_shared<FmFieldWin>(&rBindings, this, _pParent->GetFrameWeld());

    SetController(xDlg);

    SetHideNotDelete(true);

    xDlg->Initialize(rInfo);

}

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