symbol_library_manager.h

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/*
 * This program source code file is symbol of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2017 CERN
 * Copyright (C) 2019-2021 KiCad Developers, see AUTHORS.txt for contributors.
 *
 * @author Maciej Suminski <maciej.suminski@cern.ch>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 3
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A SYMBOLICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, you may find one here:
 * https://www.gnu.org/licenses/gpl-3.0.html
 * or you may search the http://www.gnu.org website for the version 3 license,
 * or you may write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
 */

#ifndef SYMBOL_LIBRARY_MANAGER_H
#define SYMBOL_LIBRARY_MANAGER_H

#include <map>
#include <list>
#include <deque>
#include <set>
#include <memory>
#include <wx/arrstr.h>
#include <symbol_tree_synchronizing_adapter.h>
#include <sch_io_mgr.h>
#include <sch_screen.h>

class LIB_SYMBOL;
class SYMBOL_LIB;
class PROGRESS_REPORTER;
class SCH_PLUGIN;
class SYMBOL_EDIT_FRAME;
class SYMBOL_LIB_TABLE;
class SYMBOL_LIB_TABLE_ROW;
class LIB_LOGGER;


class SYMBOL_LIBRARY_MANAGER
{
public:
    SYMBOL_LIBRARY_MANAGER( SYMBOL_EDIT_FRAME& aFrame );
    ~SYMBOL_LIBRARY_MANAGER();

    void Sync( const wxString& aForceRefresh,
               std::function<void( int, int, const wxString& )> aProgressCallback );

    void Preload( PROGRESS_REPORTER& aReporter );

    int GetHash() const;

    bool HasModifications() const;

    int GetLibraryHash( const wxString& aLibrary ) const;

    wxArrayString GetLibraryNames() const;

    SYMBOL_LIB_TABLE_ROW* GetLibrary( const wxString& aLibrary ) const;

    std::list<LIB_SYMBOL*> GetAliases( const wxString& aLibrary ) const;

    bool CreateLibrary( const wxString& aFilePath, SYMBOL_LIB_TABLE* aTable )
    {
        return addLibrary( aFilePath, true, aTable );
    }

    bool AddLibrary( const wxString& aFilePath, SYMBOL_LIB_TABLE* aTable )
    {
        return addLibrary( aFilePath, false, aTable );
    }

    bool UpdateSymbol( LIB_SYMBOL* aSymbol, const wxString& aLibrary );

    bool UpdateSymbolAfterRename( LIB_SYMBOL* aSymbol, const wxString& oldAlias,
                                  const wxString& aLibrary );

    bool RemoveSymbol( const wxString& aName, const wxString& aLibrary );

    LIB_SYMBOL* GetAlias( const wxString& aAlias, const wxString& aLibrary ) const;

    LIB_SYMBOL* GetBufferedSymbol( const wxString& aAlias, const wxString& aLibrary );

    SCH_SCREEN* GetScreen( const wxString& aAlias, const wxString& aLibrary );

    bool SymbolExists( const wxString& aAlias, const wxString& aLibrary ) const;

    bool LibraryExists( const wxString& aLibrary, bool aCheckEnabled = false ) const;

    bool IsLibraryLoaded( const wxString& aLibrary ) const;

    bool IsLibraryModified( const wxString& aLibrary ) const;

    bool IsSymbolModified( const wxString& aAlias, const wxString& aLibrary ) const;

    bool ClearLibraryModified( const wxString& aLibrary ) const;

    bool ClearSymbolModified( const wxString& aAlias, const wxString& aLibrary ) const;

    bool IsLibraryReadOnly( const wxString& aLibrary ) const;

    bool FlushSymbol( const wxString& aAlias, const wxString& aLibrary );

    bool SaveLibrary( const wxString& aLibrary, const wxString& aFileName,
                      SCH_IO_MGR::SCH_FILE_T aFileType = SCH_IO_MGR::SCH_FILE_T::SCH_LEGACY );

    LIB_ID RevertSymbol( const wxString& aAlias, const wxString& aLibrary );

    bool RevertLibrary( const wxString& aLibrary );

    bool RevertAll();

    wxString GetUniqueLibraryName() const;

    wxObjectDataPtr<LIB_TREE_MODEL_ADAPTER>& GetAdapter() { return m_adapter; }

    void GetRootSymbolNames( const wxString& aLibName, wxArrayString& aRootSymbolNames );

    bool HasDerivedSymbols( const wxString& aSymbolName, const wxString& aLibraryName );

    size_t GetLibraryCount() const;

private:
    static wxString getLibraryName( const wxString& aFilePath );

    bool addLibrary( const wxString& aFilePath, bool aCreate, SYMBOL_LIB_TABLE* aTable );

    SYMBOL_LIB_TABLE* symTable() const;

    SYMBOL_TREE_SYNCHRONIZING_ADAPTER* getAdapter()
    {
        return static_cast<SYMBOL_TREE_SYNCHRONIZING_ADAPTER*>( m_adapter.get() );
    }

    class SYMBOL_BUFFER
    {
    public:
        SYMBOL_BUFFER( LIB_SYMBOL* aSymbol = nullptr,
                       std::unique_ptr<SCH_SCREEN> aScreen = nullptr );
        ~SYMBOL_BUFFER();

        LIB_SYMBOL* GetSymbol() const { return m_symbol; }
        void SetSymbol( LIB_SYMBOL* aSymbol );

        LIB_SYMBOL* GetOriginal() const { return m_original; }
        void SetOriginal( LIB_SYMBOL* aSymbol );

        bool IsModified() const;
        SCH_SCREEN* GetScreen() const { return m_screen.get(); }

        std::unique_ptr<SCH_SCREEN> RemoveScreen()
        {
            return std::move( m_screen );
        }

        bool SetScreen( std::unique_ptr<SCH_SCREEN> aScreen )
        {
            bool ret = !!m_screen;
            m_screen = std::move( aScreen );
            return ret;
        }

    private:
        std::unique_ptr<SCH_SCREEN> m_screen;

        LIB_SYMBOL* m_symbol;      // Working copy
        LIB_SYMBOL* m_original;    // Initial state of the symbol
    };


    class LIB_BUFFER
    {
    public:
        LIB_BUFFER( const wxString& aLibrary ) :
                m_libName( aLibrary ),
                m_hash( 1 )
        { }

        bool IsModified() const
        {
            if( !m_deleted.empty() )
                return true;

            for( const std::shared_ptr<SYMBOL_BUFFER>& symbolBuf : m_symbols )
            {
                if( symbolBuf->IsModified() )
                    return true;
            }

            return false;
        }

        int GetHash() const { return m_hash; }

        LIB_SYMBOL* GetSymbol( const wxString& aAlias ) const;

        bool CreateBuffer( LIB_SYMBOL* aCopy, SCH_SCREEN* aScreen );

        bool UpdateBuffer( std::shared_ptr<SYMBOL_BUFFER> aSymbolBuf, LIB_SYMBOL* aCopy );

        bool DeleteBuffer( std::shared_ptr<SYMBOL_BUFFER> aSymbolBuf );

        void ClearDeletedBuffer()
        {
            m_deleted.clear();
        }

        bool SaveBuffer( std::shared_ptr<SYMBOL_BUFFER> aSymbolBuf, SYMBOL_LIB_TABLE* aLibTable );

        bool SaveBuffer( std::shared_ptr<SYMBOL_BUFFER> aSymbolBuf, const wxString& aFileName,
                         SCH_PLUGIN* aPlugin, bool aBuffer );

        std::shared_ptr<SYMBOL_BUFFER> GetBuffer( const wxString& aAlias ) const;

        const std::deque< std::shared_ptr<SYMBOL_BUFFER> >& GetBuffers() const { return m_symbols; }

        bool HasDerivedSymbols( const wxString& aParentName ) const;

        void GetRootSymbolNames( wxArrayString& aRootSymbolNames );

        size_t GetDerivedSymbolNames( const wxString& aSymbolName, wxArrayString& aList );

    private:
        int removeChildSymbols( std::shared_ptr<SYMBOL_BUFFER> aSymbolBuf );

        std::deque< std::shared_ptr<SYMBOL_BUFFER> > m_symbols;

        std::deque< std::shared_ptr<SYMBOL_BUFFER> > m_deleted;
        const wxString                               m_libName;  // Buffered library name
        int                                          m_hash;
    };

    std::set<LIB_SYMBOL*> getOriginalSymbols( const wxString& aLibrary );

    LIB_BUFFER& getLibraryBuffer( const wxString& aLibrary );

    std::map<wxString, LIB_BUFFER> m_libs;

    SYMBOL_EDIT_FRAME& m_frame;        
    LIB_LOGGER*        m_logger;
    int                m_syncHash;     

    wxObjectDataPtr<LIB_TREE_MODEL_ADAPTER> m_adapter;
};

#endif /* SYMBOL_LIBRARY_MANAGER_H */