/* -*- 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 .

 */

#pragma once

#include <rtl/ref.hxx>

#include <rtl/ustring.hxx>

#include <svl/style.hxx>

#include <svl/itemset.hxx>

#include "swdllapi.h"

#include "names.hxx"

#include <unordered_map>

#include <memory>

#include <optional>

#include <vector>

class SwDoc;

class SwDocStyleSheetPool;

class SwPageDesc;

class SwCharFormat;

class SwTextFormatColl;

class SwFrameFormat;

class SwNumRule;

class SwTableAutoFormat;

class SwBoxAutoFormat;

enum class SwGetPoolIdFromName : sal_uInt16;

// Temporary StyleSheet.

class SW_DLLPUBLIC SwDocStyleSheet final : public SfxStyleSheetBase

{

    friend class SwDocStyleSheetPool;

    friend class SwStyleSheetIterator;

    SwCharFormat*          m_pCharFormat;

    SwTextFormatColl*       m_pColl;

    SwFrameFormat*           m_pFrameFormat;

    const SwPageDesc*   m_pDesc;

    const SwNumRule*    m_pNumRule;

    SwTableAutoFormat*  m_pTableFormat;

    const SwBoxAutoFormat*   m_pBoxFormat;

    SwDoc&              m_rDoc;

    SfxItemSet          m_aCoreSet;

    bool                m_bPhysical;

    OUString m_aLink;

    /// Make empty shell a real StyleSheet (Core).

    SAL_DLLPRIVATE void              Create();

    /// Fill StyleSheet with data.

    enum FillStyleType {

        FillOnlyName,

        FillAllInfo,

        FillPhysical,

        FillPreview,

    };

    SAL_DLLPRIVATE bool FillStyleSheet(FillStyleType eFType,

            std::optional<SfxItemSet> * o_ppFlatSet = nullptr);

    virtual ~SwDocStyleSheet() override;

public:

    SwDocStyleSheet( SwDoc&                 rDoc,

                     SwDocStyleSheetPool&   rPool);

    SwDocStyleSheet( const SwDocStyleSheet& );

    void                    Reset();

    void                    SetFamily(SfxStyleFamily eFam)  { nFamily = eFam;   }

    bool                    IsPhysical() const              { return m_bPhysical; }

    void                    SetPhysical(bool bPhys);

    virtual void            SetHidden( bool bHidden ) override;

    virtual bool            IsHidden( ) const override;

    void SetGrabBagItem(const css::uno::Any& rVal);

    void GetGrabBagItem(css::uno::Any& rVal) const;

    /** add optional parameter <bResetIndentAttrsAtParagraphStyle>, default value false,

     which indicates that the indent attributes at a paragraph style should

     be reset in case that a list style is applied to the paragraph style and

     no indent attributes are applied. */

    void                    SetItemSet( const SfxItemSet& rSet, const bool bBroadcast = true,

                                        const bool bResetIndentAttrsAtParagraphStyle = false );

    virtual SfxItemSet&     GetItemSet() override;

    virtual std::optional<SfxItemSet> GetItemSetForPreview() override;

    /** new method for paragraph styles to merge indent attributes of applied list

     style into the given item set, if the list style indent attributes are applicable. */

    void MergeIndentAttrsOfListStyle( SfxItemSet& rSet );

    virtual const OUString& GetParent() const override;

    virtual const OUString& GetFollow() const override;

    const OUString& GetLink() const;

    virtual sal_uInt32 GetHelpId( OUString& rFile ) override;

    virtual void SetHelpId( const OUString& r, sal_uInt32 nId ) override;

    virtual sal_Int32 GetSpotlightId() override;

    /** Preset the members without physical access.

     Used by StyleSheetPool. */

    void                    PresetName(const OUString& rName)  { aName   = rName; }

    void                    PresetNameAndFamily(SfxStyleFamily eFamily, const OUString& rName);

    void                    PresetParent(const OUString& rName){ aParent = rName; }

    void                    PresetFollow(const OUString& rName){ aFollow = rName; }

    virtual bool            SetName(const OUString& rNewName, bool bReindexNow = true) override;

    virtual bool            SetParent( const OUString& rStr) override;

    virtual bool            SetFollow( const OUString& rStr) override;

    void SetLink(const OUString& rStr);

    virtual bool            HasFollowSupport() const override;

    virtual bool            HasParentSupport() const override;

    virtual bool            HasClearParentSupport() const override;

    virtual OUString        GetDescription(MapUnit eUnit) override;

    virtual std::vector<std::pair<sal_uInt16, OUString>> GetItemPresentation(

        MapUnit eMetric, const SfxItemSet* pWorkingSet = nullptr) override;

    void ResetItems(const std::set<sal_uInt16>& rWhichIds);

    virtual OUString GetUsedBy() override;

    SwCharFormat*              GetCharFormat();

    SwTextFormatColl*           GetCollection();

    SwFrameFormat*               GetFrameFormat();

    const SwPageDesc*       GetPageDesc();

    const SwNumRule*        GetNumRule();

    void                    SetNumRule(const SwNumRule& rRule);

    SwTableAutoFormat*      GetTableFormat();

    virtual bool            IsUsed() const override;

};

// Iterator for Pool.

class SwStyleSheetIterator final : public SfxStyleSheetIterator, public SfxListener

{

    // Local helper class.

    class SwPoolFormatList

    {

        struct Hash

        {

            size_t operator()(const std::pair<SfxStyleFamily, UIName>& p) const

            {

                return std::hash<SfxStyleFamily>()(p.first) ^ std::hash<UIName>()(p.second);

            }

        };

        std::vector<std::pair<SfxStyleFamily, UIName>> maImpl;

        typedef std::unordered_map<std::pair<SfxStyleFamily, UIName>, sal_uInt32, Hash> UniqueHash;

        UniqueHash maUnique;

        void rehash();

    public:

        SwPoolFormatList() {}

        void Append( SfxStyleFamily eFam, const UIName& rStr );

        void clear() { maImpl.clear(); maUnique.clear(); }

        size_t size() { return maImpl.size(); }

        bool empty() { return maImpl.empty(); }

        sal_uInt32 FindName(SfxStyleFamily eFam, const UIName& rName);

        void RemoveName(SfxStyleFamily eFam, const UIName& rName);

        const std::pair<SfxStyleFamily,UIName> &operator[](sal_uInt32 nIdx) { return maImpl[ nIdx ]; }

    };

    rtl::Reference< SwDocStyleSheet > mxIterSheet;

    rtl::Reference< SwDocStyleSheet > mxStyleSheet;

    SwPoolFormatList       m_aLst;

    sal_uInt32          m_nLastPos;

    bool                m_bFirstCalled;

    bool IsUsedInComments(const UIName& rName) const;

    void                AppendStyleList(const std::vector<OUString>& rLst,

                                        bool        bUsed,

                                        bool        bTestHidden,

                                        bool        bOnlyHidden,

                                        SwGetPoolIdFromName nSection,

                                        SfxStyleFamily eFamily);

public:

    SwStyleSheetIterator(SwDocStyleSheetPool& rBase,

                         SfxStyleFamily eFam, SfxStyleSearchBits n);

    virtual ~SwStyleSheetIterator() override;

    virtual sal_Int32 Count() override;

    virtual SfxStyleSheetBase *operator[](sal_Int32 nIdx) override;

    virtual SfxStyleSheetBase* First() override;

    virtual SfxStyleSheetBase* Next() override;

    virtual SfxStyleSheetBase* Find(const OUString& rStr) override;

    virtual void Notify( SfxBroadcaster&, const SfxHint& ) override;

    void InvalidateIterator();

};

class SwDocStyleSheetPool final : public SfxStyleSheetBasePool

{

    rtl::Reference< SwDocStyleSheet > mxStyleSheet;

    rtl::Reference< SfxStyleSheetPool > mxEEStyleSheetPool;

    SwDoc&              m_rDoc;

    bool                m_bOrganizer : 1;     ///< Organizer

    virtual rtl::Reference<SfxStyleSheetBase> Create( const OUString&, SfxStyleFamily, SfxStyleSearchBits nMask, const OUString& rParentStyleSheetName) override;

    virtual rtl::Reference<SfxStyleSheetBase> Create( const SfxStyleSheetBase& ) override;

    using SfxStyleSheetBasePool::Find;

public:

    SwDocStyleSheetPool( SwDoc&, bool bOrganizer );

    virtual SfxStyleSheetBase& Make(const OUString&, SfxStyleFamily,

            SfxStyleSearchBits nMask = SfxStyleSearchBits::All,

            const OUString& rParentStyleSheetName = u""_ustr) override;

    virtual SfxStyleSheetBase* Find( const OUString&, SfxStyleFamily eFam,

                                    SfxStyleSearchBits n=SfxStyleSearchBits::All ) override;

    virtual void Remove( SfxStyleSheetBase* pStyle) override;

    bool    IsOrganizerMode() const         { return m_bOrganizer; }

    virtual std::unique_ptr<SfxStyleSheetIterator> CreateIterator( SfxStyleFamily, SfxStyleSearchBits nMask = SfxStyleSearchBits::All) override;

    SwDoc& GetDoc() const { return m_rDoc; }

    SfxStyleSheetPool* GetEEStyleSheetPool() const { return mxEEStyleSheetPool.get(); }

    void dispose();

    void InvalidateIterator();

private:

    virtual ~SwDocStyleSheetPool() override;

    SwDocStyleSheetPool( const SwDocStyleSheetPool& ) = delete;

};

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