/* -*- 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 .

 */

#ifndef INCLUDED_PACKAGE_SOURCE_XSTOR_OHIERARCHYHOLDER_HXX

#define INCLUDED_PACKAGE_SOURCE_XSTOR_OHIERARCHYHOLDER_HXX

#include <com/sun/star/embed/XStorage.hpp>

#include <com/sun/star/embed/XTransactionListener.hpp>

#include <com/sun/star/embed/XExtendedStorageStream.hpp>

#include <cppuhelper/implbase.hxx>

#include <cppuhelper/weakref.hxx>

#include <unotools/weakref.hxx>

#include <comphelper/sequenceashashmap.hxx>

#include <rtl/ref.hxx>

#include <mutex>

#include <unordered_map>

#include <utility>

#include <vector>

class OHierarchyElement_Impl;

class OStorage;

typedef std::unordered_map< OUString,

                         ::rtl::Reference< OHierarchyElement_Impl > > OHierarchyElementList_Impl;

typedef ::std::vector< css::uno::WeakReference< css::embed::XExtendedStorageStream > >

                        OWeakStorRefVector_Impl;

class OHierarchyElement_Impl : public cppu::WeakImplHelper< css::embed::XTransactionListener >

{

    std::mutex m_aMutex;

    ::rtl::Reference< OHierarchyElement_Impl > m_rParent;

    rtl::Reference< OStorage > m_xOwnStorage;

    unotools::WeakReference< OStorage > m_xWeakOwnStorage;

    OHierarchyElementList_Impl m_aChildren;

    OWeakStorRefVector_Impl m_aOpenStreams;

public:

    explicit OHierarchyElement_Impl(rtl::Reference< OStorage > xStorage )

    : m_xOwnStorage(std::move( xStorage ))

    {}

    explicit OHierarchyElement_Impl( unotools::WeakReference< OStorage >&& xWeakStorage )

    : m_xWeakOwnStorage(std::move( xWeakStorage ))

    {}

    void Commit();

    void SetParent( const ::rtl::Reference< OHierarchyElement_Impl >& rParent ) { m_rParent = rParent; }

    void TestForClosing();

    void RemoveElement( const ::rtl::Reference< OHierarchyElement_Impl >& aRef );

    css::uno::Reference< css::embed::XExtendedStorageStream >

        GetStreamHierarchically( sal_Int32 nStorageMode,

                                std::vector<OUString>& aPath,

                                sal_Int32 nStreamMode,

                                const ::comphelper::SequenceAsHashMap& aEncryptionData );

    void RemoveStreamHierarchically( std::vector<OUString>& aListPath );

    // XEventListener

    virtual void SAL_CALL disposing( const css::lang::EventObject& Source ) override;

    // XTransactionListener

    virtual void SAL_CALL preCommit( const css::lang::EventObject& aEvent ) override;

    virtual void SAL_CALL commited( const css::lang::EventObject& aEvent ) override;

    virtual void SAL_CALL preRevert( const css::lang::EventObject& aEvent ) override;

    virtual void SAL_CALL reverted( const css::lang::EventObject& aEvent ) override;

};

class OHierarchyHolder_Impl

{

    ::rtl::Reference< OHierarchyElement_Impl > m_xChild;

public:

    explicit OHierarchyHolder_Impl(unotools::WeakReference<OStorage>&& xOwnStorage)

    : m_xChild( new OHierarchyElement_Impl( std::move(xOwnStorage) ) )

    {}

    static std::vector<OUString> GetListPathFromString( std::u16string_view aPath );

    css::uno::Reference< css::embed::XExtendedStorageStream >

        GetStreamHierarchically( sal_Int32 nStorageMode,

                                std::vector<OUString>& aListPath,

                                sal_Int32 nStreamMode,

                                const ::comphelper::SequenceAsHashMap& aEncryptionData = ::comphelper::SequenceAsHashMap() );

    void RemoveStreamHierarchically( std::vector<OUString>& aListPath );

};

#endif // _OHIERARCHYHOLDER

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