#ifndef instmgr_h
#define instmgr_h

/*
* NIST STEP Editor Class Library
* cleditor/instmgr.h
* April 1997
* David Sauder
* K. C. Morris

* Development of this software was funded by the United States Government,
* and is not subject to copyright.
*/

///// future? TODO? ////////////////
// InstMgr can maintain an undo list for the last operation
//  performed on a node
// InstMgr can have a startUndo() and endUndo() so it knows when to
//  start a new undo list and delete the old undo list.
/////////////////////

#include <sc_export.h>

#include <map>

// IT IS VERY IMPORTANT THAT THE ORDER OF THE FOLLOWING INCLUDE FILES
// BE PRESERVED

#include "clutils/gennode.h"
#include "clutils/gennodelist.h"
#include "clutils/gennodearray.h"

#include "clstepcore/mgrnode.h"
#include "clstepcore/mgrnodelist.h"

#include "clstepcore/dispnode.h"
#include "clstepcore/dispnodelist.h"

#include "clstepcore/mgrnodearray.h"

class SC_CORE_EXPORT InstMgrBase {
    public:
        virtual MgrNodeBase * FindFileId( int fileId ) = 0;
        virtual ~InstMgrBase() {};
};

class SC_CORE_EXPORT InstMgr : public InstMgrBase {
    protected:
        int maxFileId;
        int _ownsInstances; // if true will delete instances inside destructor

        MgrNodeArray * master;  // master array of all MgrNodes made up of
        // complete, incomplete, new, delete MgrNodes lists
        // this corresponds to the display list object by index
	std::map<int, MgrNode *> *sortedMaster;  // master array sorted by fileId
//    StateList *master; // this will be an sorted array of ptrs to MgrNodes

    public:
        InstMgr( int ownsInstances = 0 );
        virtual ~InstMgr();

// MASTER LIST OPERATIONS
        int InstanceCount() const {
            return master->Count();
        }

        int OwnsInstances() const {
            return _ownsInstances;
        }
        void OwnsInstances( int ownsInstances ) {
            _ownsInstances = ownsInstances;
        }

        void ClearInstances(); //clears instance lists but doesn't delete instances
        void DeleteInstances(); // deletes the instances (ignores _ownsInstances)

        Severity VerifyInstances( ErrorDescriptor & e );

        // DAS PORT possible BUG two funct's below may create a temp for the cast
        MgrNode * GetMgrNode( int index ) {
            return ( MgrNode * ) * GetGenNode( index );
        }
        GenericNode ** GetGenNode( int index ) {
            return &( *master ) [index];
        }

        MgrNode * FindFileId( int fileId );
        // get the index into display list given a SDAI_Application_instance
        //  called by see initiated functions
        int GetIndex( SDAI_Application_instance * se );
        int GetIndex( MgrNode * mn );
        int VerifyEntity( int fileId, const char * expectedType );

//    void Append(MgrNode *node);
        MgrNode * Append( SDAI_Application_instance * se, stateEnum listState );
        // deletes node from master list structure
        void Delete( MgrNode * node );
        void Delete( SDAI_Application_instance * se );

        void ChangeState( MgrNode * node, stateEnum listState );

        int MaxFileId()     {
            return maxFileId;
        }
        int NextFileId()        {
            return maxFileId = maxFileId + 1;
        }
        int EntityKeywordCount( const char * name );

        SDAI_Application_instance  * GetApplication_instance( int index );
        SDAI_Application_instance *
        GetApplication_instance( const char * entityKeyword,
                                 int starting_index = 0 );
        SDAI_Application_instance  * GetApplication_instance( MgrNode * node ) {
            return node->GetApplication_instance();
        }

        void * GetSEE( int index );
        void * GetSEE( MgrNode * node ) {
            return node->SEE();
        }

        void PrintSortedFileIds();

        // OBSOLETE
        SDAI_Application_instance  * GetSTEPentity( int index );
        SDAI_Application_instance  * GetSTEPentity( const char * entityKeyword,
                int starting_index = 0 );
        SDAI_Application_instance  * GetSTEPentity( MgrNode * node ) {
            return node->GetApplication_instance();
        }

};

#endif