/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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 *
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 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
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#ifndef INCLUDED_EDITENG_SVXACORR_HXX
#define INCLUDED_EDITENG_SVXACORR_HXX

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

#include <o3tl/sorted_vector.hxx>
#include <tools/ref.hxx>
#include <i18nlangtag/languagetag.hxx>
#include <tools/time.hxx>
#include <tools/date.hxx>
#include <editeng/swafopt.hxx>
#include <editeng/editengdllapi.h>

#include <map>
#include <memory>

class CharClass;
class SfxPoolItem;
class SotStorage;
class SvxAutoCorrect;
class SfxObjectShell;
namespace vcl { class Window; }

struct CompareSvStringsISortDtor
{
    bool operator()( OUString const& lhs, OUString const& rhs ) const
    {
        return lhs.compareToIgnoreAsciiCase( rhs ) < 0;
    }
};

class SvStringsISortDtor
    : public o3tl::sorted_vector<OUString, CompareSvStringsISortDtor>
{
};

// Auto correct flags
const long CapitalStartSentence = 0x00000001;   // Capital letters at the beginning of a sentence
const long CapitalStartWord = 0x00000002;   // not two Capital letters at the beginning of a word
const long AddNonBrkSpace   = 0x00000004;   // Add non breaking space before :;?!%
const long ChgOrdinalNumber = 0x00000008;   // Ordinal-Number 1st, 2nd,..
const long ChgToEnEmDash    = 0x00000010;   // - -> Endash/Emdash
const long ChgWeightUnderl  = 0x00000020;   // * -> Bold, _ -> Underscore
const long SetINetAttr      = 0x00000040;   // Set INetAttribut
const long Autocorrect      = 0x00000080;   // Call AutoCorrect
const long ChgQuotes        = 0x00000100;   // replace double quotes
const long SaveWordCplSttLst= 0x00000200;   // Save Auto correction of Capital letter at beginning of sentence.
const long SaveWordWrdSttLst= 0x00000400;   // Save Auto correction of 2 Capital letter at beginning of word.
const long IgnoreDoubleSpace= 0x00000800;   // Ignore 2 Spaces
const long ChgSglQuotes     = 0x00001000;   // Replace simple quotes
const long CorrectCapsLock  = 0x00002000;   // Correct accidental use of cAPS LOCK key

const long ChgWordLstLoad   = 0x20000000;   // Replacement list loaded
const long CplSttLstLoad    = 0x40000000;   // Exception list for Capital letters Start loaded
const long WrdSttLstLoad    = 0x80000000;   // Exception list for Word Start loaded

// TODO: handle unicodes > U+FFFF and check users of this class

// only a mapping class
class EDITENG_DLLPUBLIC SvxAutoCorrDoc
{
public:
    SvxAutoCorrDoc() {}
    virtual ~SvxAutoCorrDoc();

    virtual bool Delete( sal_Int32 nStt, sal_Int32 nEnd ) = 0;
    virtual bool Insert( sal_Int32 nPos, const OUString& rTxt ) = 0;
    virtual bool Replace( sal_Int32 nPos, const OUString& rTxt ) = 0;
    virtual bool ReplaceRange( sal_Int32 nPos, sal_Int32 nLen, const OUString& rTxt ) = 0;

    virtual bool SetAttr( sal_Int32 nStt, sal_Int32 nEnd, sal_uInt16 nSlotId,
                            SfxPoolItem& ) = 0;

    virtual bool SetINetAttr( sal_Int32 nStt, sal_Int32 nEnd, const OUString& rURL ) = 0;

    // Return the text of a previous paragraph.
    // If no paragraph exits or just an empty one, then return an empty string.
    // The flag indicates:
    //      TRUE: before the normal insertion position (TRUE)
    //      FALSE: in which the corrected word was inserted.
    //             (Does not to have to be the same paragraph !!!!)
    virtual OUString const* GetPrevPara(bool bAtNormalPos) = 0;

    virtual bool ChgAutoCorrWord( sal_Int32& rSttPos, sal_Int32 nEndPos,
                                  SvxAutoCorrect& rACorrect,
                                  OUString* pPara ) = 0;
    // Is called after the change of the signs by the functions
    //  - FnCapitalStartWord
    //  - FnCapitalStartSentence
    // As an option, the words can then be inserted into the exception lists.
    virtual void SaveCpltSttWord( sal_uLong nFlag, sal_Int32 nPos,
                                    const OUString& rExceptWord,
                                    sal_Unicode cChar );

    // which language at the position?
    virtual LanguageType GetLanguage( sal_Int32 nPos, bool bPrevPara = false ) const;
};


class EDITENG_DLLPUBLIC SvxAutocorrWord
{
    OUString sShort, sLong;
    bool bIsTxtOnly;                // Is pure ASCII - Text
public:
    SvxAutocorrWord( const OUString& rS, const OUString& rL, bool bFlag = true )
        : sShort( rS ), sLong( rL ), bIsTxtOnly( bFlag )
    {}

    const OUString& GetShort() const                  { return sShort; }
    const OUString& GetLong() const                   { return sLong; }
    bool IsTextOnly() const                           { return bIsTxtOnly; }
};

class EDITENG_DLLPUBLIC SvxAutocorrWordList
{
    struct Impl;
    std::unique_ptr<Impl> mpImpl;

    SvxAutocorrWordList( const SvxAutocorrWordList& ) = delete;
    const SvxAutocorrWordList& operator= ( const SvxAutocorrWordList& ) = delete;

    const SvxAutocorrWord* WordMatches(const SvxAutocorrWord *pFnd,
                                       const OUString &rTxt,
                                       sal_Int32 &rStt,
                                       sal_Int32 nEndPos) const;
public:
    SvxAutocorrWordList();
                           // free any objects still in the set
                           ~SvxAutocorrWordList();
    void                   DeleteAndDestroyAll();
    bool                   Insert(SvxAutocorrWord *pWord) const;
    SvxAutocorrWord*       FindAndRemove(SvxAutocorrWord *pWord);
    void                   LoadEntry(const OUString& sWrong, const OUString& sRight, bool bOnlyTxt);
    bool                   empty() const;

    typedef std::vector<SvxAutocorrWord *> Content;
    Content                getSortedContent() const;

    const SvxAutocorrWord* SearchWordsInList(const OUString& rTxt, sal_Int32& rStt, sal_Int32 nEndPos) const;
};

class EDITENG_DLLPUBLIC SvxAutoCorrectLanguageLists
{
    OUString sShareAutoCorrFile, sUserAutoCorrFile;
    // If the AutoCorr file is newer
    Date aModifiedDate;
    tools::Time aModifiedTime, aLastCheckTime;

    SvStringsISortDtor*     pCplStt_ExcptLst;
    SvStringsISortDtor*     pWrdStt_ExcptLst;
    SvxAutocorrWordList*    pAutocorr_List;
    SvxAutoCorrect&         rAutoCorrect;

    long nFlags;

    bool IsFileChanged_Imp();
    void LoadXMLExceptList_Imp( SvStringsISortDtor*& rpLst,
                                const sal_Char* pStrmName,
                                tools::SvRef<SotStorage>& rStg);
    static void SaveExceptList_Imp( const SvStringsISortDtor& rLst,
                                const sal_Char* pStrmName,
                                tools::SvRef<SotStorage>& rStg,
                                bool bConvert = false);

    bool MakeBlocklist_Imp( SotStorage& rStg );
    void RemoveStream_Imp( const OUString& rName );
    void MakeUserStorage_Impl();

public:
    SvxAutoCorrectLanguageLists( SvxAutoCorrect& rParent,
            const OUString& rShareAutoCorrectFile,
            const OUString& rUserAutoCorrectFile);
    ~SvxAutoCorrectLanguageLists();

    // Load, Set, Get - the replacement list
    SvxAutocorrWordList* LoadAutocorrWordList();
    void SetAutocorrWordList( SvxAutocorrWordList* pList );
    const SvxAutocorrWordList* GetAutocorrWordList();

    // Load, Set, Get - the exception list for Capital letter at the
    // beginning of a sentence
    SvStringsISortDtor* LoadCplSttExceptList();
    void SaveCplSttExceptList();
    void SetCplSttExceptList( SvStringsISortDtor* pList );
    SvStringsISortDtor* GetCplSttExceptList();
    bool AddToCplSttExceptList(const OUString& rNew);

    // Load, Set, Get the exception list for 2 Capital letters at the
    // beginning of a word.
    SvStringsISortDtor* LoadWrdSttExceptList();
    void SaveWrdSttExceptList();
    void SetWrdSttExceptList( SvStringsISortDtor* pList );
    SvStringsISortDtor* GetWrdSttExceptList();
    bool AddToWrdSttExceptList(const OUString& rNew);

    // Save word substitutions:
    //      Store these directly in the storage. The word list is updated
    //      accordingly!
    //  - pure Text
    bool PutText( const OUString& rShort, const OUString& rLong );
    //  - Text with attribution (only the SWG - SWG format!)
    bool PutText( const OUString& rShort, SfxObjectShell& );
    //  - Make combined changes in one pass
    bool MakeCombinedChanges( std::vector<SvxAutocorrWord>& aNewEntries, std::vector<SvxAutocorrWord>& aDeleteEntries );
};

class EDITENG_DLLPUBLIC SvxAutoCorrect
{
    friend class SvxAutoCorrectLanguageLists;

    OUString sShareAutoCorrFile, sUserAutoCorrFile;

    SvxSwAutoFormatFlags aSwFlags;     // StarWriter AutoFormat Flags

    // all languages in a table
    std::map<LanguageTag, std::unique_ptr<SvxAutoCorrectLanguageLists>>* m_pLangTable;
    std::map<LanguageTag, long> aLastFileTable;
    CharClass* pCharClass;

    bool bRunNext;

    LanguageType eCharClassLang;

    long nFlags;
    sal_Unicode cStartDQuote, cEndDQuote, cStartSQuote, cEndSQuote,
                cEmDash, cEnDash;


    // private methods
    SvxAutoCorrectLanguageLists& _GetLanguageList( LanguageType eLang );

    void _GetCharClass( LanguageType eLang );

protected:
    //  - Text with attribution (only the SWG - SWG format!)
    //      rShort is the stream name - encrypted!
    virtual bool PutText( const css::uno::Reference < css::embed::XStorage >& rStg,
                              const OUString& rFileName, const OUString& rShort, SfxObjectShell&, OUString& );

    // required language in the table add if possible only when the file exists
    bool    CreateLanguageFile(const LanguageTag& rLanguageTag, bool bNewFile = true);
    //  - Return the replacement text (only for SWG format, all others can be
    //      taken from the word list!)
    //      rShort is the stream name - encrypted!
public:

    sal_Unicode GetQuote( sal_Unicode cInsChar, bool bSttQuote,
                            LanguageType eLang ) const;
    virtual bool GetLongText( const OUString& rShort, OUString& rLong );

    virtual void refreshBlockList( const css::uno::Reference < css::embed::XStorage >& rStg);

    SvxAutoCorrect( const OUString& rShareAutocorrFile,
                    const OUString& rUserAutocorrFile );
    SvxAutoCorrect( const SvxAutoCorrect& );
    virtual ~SvxAutoCorrect();

    // Execute an AutoCorrect.
    // Returns what has been executed, according to the above flags
    // FIXME: this has the horrible flaw that the rTxt must be a reference
    // to the actual SwTxtNode/EditNode string because it inserts the character
    // in rDoc and expects that to side-effect rTxt
    sal_uLong DoAutoCorrect( SvxAutoCorrDoc& rDoc, const OUString& rTxt,
                           sal_Int32 nPos, sal_Unicode cInsChar, bool bInsert, vcl::Window* pFrameWin = nullptr );

    // Return for the autotext expansion the previous word,
    // AutoCorrect - corresponding algorithm
    bool GetPrevAutoCorrWord( SvxAutoCorrDoc& rDoc, const OUString& rTxt,
                                sal_Int32 nPos, OUString& rWord ) const;

    // Search for the words in the replacement table.
    // rText - check in this text the words of the list
    // rStt - the detected starting position
    // nEnd - to check position - as of this item forward
    // rLang - Input: in which language is searched
    //         Output: in which "language list" was it found
    const SvxAutocorrWord* SearchWordsInList( const OUString& rTxt,
                                    sal_Int32& rStt, sal_Int32 nEndPos,
                                    SvxAutoCorrDoc& rDoc,
                                    LanguageTag& rLang );

    // Query/Set the Character for the Quote substitution
    sal_Unicode GetStartSingleQuote() const         { return cStartSQuote; }
    sal_Unicode GetEndSingleQuote() const           { return cEndSQuote; }
    sal_Unicode GetStartDoubleQuote() const         { return cStartDQuote; }
    sal_Unicode GetEndDoubleQuote() const           { return cEndDQuote; }

    void SetStartSingleQuote( const sal_Unicode cStart )    { cStartSQuote = cStart; }
    void SetEndSingleQuote( const sal_Unicode cEnd )        { cEndSQuote = cEnd; }
    void SetStartDoubleQuote( const sal_Unicode cStart )    { cStartDQuote = cStart; }
    void SetEndDoubleQuote( const sal_Unicode cEnd )        { cEndDQuote = cEnd; }

    OUString GetQuote( SvxAutoCorrDoc& rDoc, sal_Int32 nInsPos,
                    sal_Unicode cInsChar, bool bSttQuote );
    void InsertQuote( SvxAutoCorrDoc& rDoc, sal_Int32 nInsPos,
                    sal_Unicode cInsChar, bool bSttQuote, bool bIns );

    // Query/Set the name of the AutoCorrect file
    // the default is "autocorr.dat"
    OUString GetAutoCorrFileName( const LanguageTag& rLanguageTag /* = LANGUAGE_SYSTEM */ ,
                                bool bNewFile = false,
                                bool bTstUserExist = false,
                                bool bUnlocalized = false ) const;

    // Query/Set the current settings of AutoCorrect
    long GetFlags() const                       { return nFlags; }
    inline SvxSwAutoFormatFlags&   GetSwFlags()    { return aSwFlags;}
    bool IsAutoCorrFlag( long nFlag ) const
                                { return (nFlags & nFlag) != 0; }
    void SetAutoCorrFlag( long nFlag, bool bOn = true );

    // Load, Set, Get - the replacement list
    SvxAutocorrWordList* LoadAutocorrWordList(
                                    LanguageType eLang = LANGUAGE_SYSTEM )
        { return _GetLanguageList( eLang ).LoadAutocorrWordList(); }

    // Save word substitutions:
    //      Save these directly in the storage. The word list is updated
    //      accordingly!
    //  - pure Text
    bool PutText( const OUString& rShort, const OUString& rLong, LanguageType eLang = LANGUAGE_SYSTEM );
    //  - Text with attribution (only in the SWG - SWG format!)
    bool PutText( const OUString& rShort, SfxObjectShell& rShell,
                 LanguageType eLang = LANGUAGE_SYSTEM )
        { return _GetLanguageList( eLang ).PutText(rShort, rShell ); }

    bool MakeCombinedChanges( std::vector<SvxAutocorrWord>& aNewEntries,
                                  std::vector<SvxAutocorrWord>& aDeleteEntries,
                                  LanguageType eLang = LANGUAGE_SYSTEM );

    // Load, Set, Get - the exception list for capital letters at the
    // beginning of a sentence
    void SaveCplSttExceptList( LanguageType eLang = LANGUAGE_SYSTEM );
    SvStringsISortDtor* LoadCplSttExceptList(
                                    LanguageType eLang = LANGUAGE_SYSTEM)
        {   return _GetLanguageList( eLang ).LoadCplSttExceptList(); }
    const SvStringsISortDtor* GetCplSttExceptList(
                                    LanguageType eLang = LANGUAGE_SYSTEM )
        {   return _GetLanguageList( eLang ).GetCplSttExceptList(); }

    // Adds a single word. The list will be immediately written to the file!
    bool AddCplSttException( const OUString& rNew,
                                LanguageType eLang = LANGUAGE_SYSTEM );

    // Load, Set, Get the exception list for 2 Capital letters at the
    // beginning of a word.
    void SaveWrdSttExceptList( LanguageType eLang = LANGUAGE_SYSTEM );
    SvStringsISortDtor* LoadWrdSttExceptList(
                                    LanguageType eLang = LANGUAGE_SYSTEM )
        {   return _GetLanguageList( eLang ).LoadWrdSttExceptList(); }
    const SvStringsISortDtor* GetWrdSttExceptList(
                                    LanguageType eLang = LANGUAGE_SYSTEM )
        {   return _GetLanguageList( eLang ).GetWrdSttExceptList(); }
    // Adds a single word. The list will be immediately written to the file!
    bool AddWrtSttException( const OUString& rNew, LanguageType eLang = LANGUAGE_SYSTEM);

    // Search through the Languages for the entry
    bool FindInWrdSttExceptList( LanguageType eLang, const OUString& sWord );
    bool FindInCplSttExceptList( LanguageType eLang, const OUString& sWord,
                                    bool bAbbreviation = false);

    // Methods for the auto-correction
    bool FnCapitalStartWord( SvxAutoCorrDoc&, const OUString&,
                                sal_Int32 nSttPos, sal_Int32 nEndPos,
                                LanguageType eLang = LANGUAGE_SYSTEM );
    bool FnChgOrdinalNumber( SvxAutoCorrDoc&, const OUString&,
                                sal_Int32 nSttPos, sal_Int32 nEndPos,
                                LanguageType eLang = LANGUAGE_SYSTEM );
    bool FnChgToEnEmDash( SvxAutoCorrDoc&, const OUString&,
                                sal_Int32 nSttPos, sal_Int32 nEndPos,
                                LanguageType eLang = LANGUAGE_SYSTEM );
    bool FnAddNonBrkSpace( SvxAutoCorrDoc&, const OUString&,
                                sal_Int32 nSttPos, sal_Int32 nEndPos,
                                LanguageType eLang = LANGUAGE_SYSTEM );
    bool FnSetINetAttr( SvxAutoCorrDoc&, const OUString&,
                                sal_Int32 nSttPos, sal_Int32 nEndPos,
                                LanguageType eLang = LANGUAGE_SYSTEM );
    bool FnChgWeightUnderl( SvxAutoCorrDoc&, const OUString&,
                                sal_Int32 nSttPos, sal_Int32 nEndPos,
                                LanguageType eLang = LANGUAGE_SYSTEM );
    bool FnCapitalStartSentence( SvxAutoCorrDoc&, const OUString&, bool bNormalPos,
                                sal_Int32 nSttPos, sal_Int32 nEndPos,
                                LanguageType eLang  = LANGUAGE_SYSTEM);
    bool FnCorrectCapsLock( SvxAutoCorrDoc&, const OUString&,
                            sal_Int32 nSttPos, sal_Int32 nEndPos,
                            LanguageType eLang  = LANGUAGE_SYSTEM );

    bool                HasRunNext() { return bRunNext; }

    static long         GetDefaultFlags();

// returns sal_True for characters where the function
// 'SvxAutoCorrect::AutoCorrect' should be called.
// (used to avoid occasional 'collisions' with (Thai) input-sequence-checking)
    static bool     IsAutoCorrectChar( sal_Unicode cChar );

    static bool NeedsHardspaceAutocorr( sal_Unicode cChar );

    CharClass& GetCharClass( LanguageType eLang )
    {
        if( !pCharClass || eLang != eCharClassLang )
            _GetCharClass( eLang );
        return *pCharClass;
    }
};

#endif

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