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

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

//////////////////////////////////////////////////////////////////////////////
//
// InstMgr member functions
//
//////////////////////////////////////////////////////////////////////////////

#include <sdai.h>
#include <instmgr.h>
#include "sc_memmgr.h"

///////////////////////////////////////////////////////////////////////////////
//  debug_level >= 2 => tells when a command is chosen
//  debug_level >= 3 => prints values within functions:
///////////////////////////////////////////////////////////////////////////////
static int debug_level = 3;
// if debug_level is greater than this number then
// function names get printed out when executed
//static int PrintFunctionTrace = 2;
// if debug_level is greater than this number then
// values within functions get printed out
//static int PrintValues = 3;


///////////////////////////////////////////////////////////////////////////////

void
InstMgr::PrintSortedFileIds() {
    MgrNode * mn = 0;
    int count = InstanceCount();
    int i = 0;
    for( i = 0; i < count; i++ ) {
        mn = ( MgrNode * )( ( *sortedMaster )[i] );
        cout << i << " " << mn->GetFileId() << endl;
    }
}

InstMgr::InstMgr( int ownsInstances )
    : maxFileId( -1 ), _ownsInstances( ownsInstances ) {
    master = new MgrNodeArray();
    sortedMaster = new MgrNodeArraySorted();
}

InstMgr::~InstMgr() {
    if( _ownsInstances ) {
        master->DeleteEntries();
    } else {
        master->ClearEntries();
    }
    sortedMaster->ClearEntries();

    delete master;
    delete sortedMaster;
}

///////////////////////////////////////////////////////////////////////////////

void InstMgr::ClearInstances() {
    master->ClearEntries();
    sortedMaster->ClearEntries();
    maxFileId = -1;
}

void InstMgr::DeleteInstances() {
    master->DeleteEntries();
    sortedMaster->ClearEntries();
    maxFileId = -1;
}

///////////////////////////////////////////////////////////////////////////////

/**************************************************
 description:
 returns:
    SEVERITY_NULL:        if all instances are complete
    SEVERITY_INCOMPLETE:  if at least one instance is missing a required attribute
    SEVERITY_WARNING:
    SEVERITY_INPUT_ERROR: if at least one instance can not be fetched
                          from the instance list.
**************************************************/

enum Severity
InstMgr::VerifyInstances( ErrorDescriptor & err ) {
    int errorCount = 0;
    char errbuf[BUFSIZ];

    int n = InstanceCount();
    MgrNode * mn;
    SDAI_Application_instance * se;
    enum Severity rval = SEVERITY_NULL;

    //for each instance on the list,
    //check the MgrNode state.
    //if the state is complete then do nothing
    //if the state is not complete,
    //   then check if it is valid
    //   if it is valid then increment the warning count,
    //      and set the rval to SEVERITY_INCOMPLETE
    //   if it is not valid, then increment the error count
    //      and set the rval to

    for( int i = 0; i < n; ++i ) {
        mn = GetMgrNode( i );
        if( !mn ) {
            ++errorCount;
            if( errorCount == 1 )
                sprintf( errbuf,
                         "VerifyInstances: Unable to verify the following instances: node %d",
                         i );
            else {
                sprintf( errbuf, ", node %d", i );
            }

            err.AppendToDetailMsg( errbuf );
            rval = SEVERITY_INPUT_ERROR;
            err.GreaterSeverity( SEVERITY_INPUT_ERROR );
            continue;
        }
        if( debug_level > 3 )
            cerr << "In VerifyInstances:  "
                 << "new MgrNode for " << mn->GetFileId() << " with state "
                 << mn->CurrState() << endl;
        if( !mn->MgrNodeListMember( completeSE ) ) {
            se = mn->GetApplication_instance();
            if( se->ValidLevel( &err, this, 0 ) < SEVERITY_USERMSG ) {
                if( rval > SEVERITY_INCOMPLETE ) {
                    rval = SEVERITY_INCOMPLETE;
                }
                ++errorCount;
                if( errorCount == 1 )
                    sprintf( errbuf,
                             "VerifyInstances: Unable to verify the following instances: #%d",
                             se->StepFileId() );
                else {
                    sprintf( errbuf, ", #%d", se->StepFileId() );
                }
                err.AppendToDetailMsg( errbuf );
            }
        }
    }
    if( errorCount ) {
        sprintf( errbuf,
                 "VerifyInstances: %d invalid instances in list.\n",
                 errorCount );
        err.AppendToUserMsg( errbuf );
        err.AppendToDetailMsg( ".\n" );
        err.GreaterSeverity( SEVERITY_INCOMPLETE );
    }

    return rval;
}

///////////////////////////////////////////////////////////////////////////////

MgrNode * InstMgr::FindFileId( int fileId ) {
    int index = sortedMaster->MgrNodeIndex( fileId );
    if( index >= 0 ) {
        return ( MgrNode * )( *sortedMaster )[index];
    } else {
        return ( MgrNode * )0;
    }
}

///////////////////////////////////////////////////////////////////////////////

// get the index into display list given a SDAI_Application_instance
//  called by see initiated functions
int InstMgr::GetIndex( MgrNode * mn ) {
    return mn->ArrayIndex();
}

///////////////////////////////////////////////////////////////////////////////

int InstMgr::GetIndex( SDAI_Application_instance * se ) {
    int fileId = se->StepFileId();
    return sortedMaster->MgrNodeIndex( fileId );
}

///////////////////////////////////////////////////////////////////////////////

int InstMgr::VerifyEntity( int fileId, const char * expectedType ) {
    MgrNode * mn = FindFileId( fileId );
    if( mn ) {
        if( !strcmp( expectedType, mn->GetApplication_instance()->EntityName() ) ) {
            return 2;    // types match
        } else {
            return 1;    // possible mismatch depending on descendants
        }
    } else {
        return 0;
    }
}

///////////////////////////////////////////////////////////////////////////////
//   Append instance to the list of instances.  Checks the file id and
//   sets it if 1) it is not set already or 2) it already exists in the list.

MgrNode * InstMgr::Append( SDAI_Application_instance * se, stateEnum listState ) {
    if( debug_level > 3 ) {
        cout << "#" << se->StepFileId() << " append node to InstMgr" << endl;
    }

    MgrNode * mn = 0;

    if( se->StepFileId() == 0 ) { // no id assigned
        se->StepFileId( NextFileId() );    // assign a file id
    }

    mn = FindFileId( se->StepFileId() );
    if( mn ) { // if id already in list
        // and it's because instance is already in list
        if( GetApplication_instance( mn ) == se ) {
            return 0;    // return 0 or mn?
        } else {
            se->StepFileId( NextFileId() );    // otherwise assign a new file id
        }
    }
    // update the maxFileId if needed
    if( se->StepFileId() > MaxFileId() ) {
        maxFileId = se->StepFileId();
    }

    mn = new MgrNode( se, listState );

    if( debug_level > 3 )
        cerr << "new MgrNode for " << mn->GetFileId() << " with state "
             << mn->CurrState() << endl;
    if( listState == noStateSE )
        cout << "append to InstMgr **ERROR ** node #" << se->StepFileId() <<
             " doesn't have state information" << endl;
    master->Append( mn );
    sortedMaster->Insert( mn );
//PrintSortedFileIds();
    return mn;
}

///////////////////////////////////////////////////////////////////////////////

void InstMgr::Delete( MgrNode * node ) {
    // delete the node from its current state list
    node->Remove();

    int index;

    // get the index of the node in the sorted master array
    index = sortedMaster->MgrNodeIndex( node->GetFileId() );
    // remove the node from the sorted master array
    sortedMaster->Remove( index );

    // get the index into the master array by ptr arithmetic
    index = node->ArrayIndex();
    master->Remove( index );

    delete node;
}

///////////////////////////////////////////////////////////////////////////////

void InstMgr::Delete( SDAI_Application_instance * se ) {
    Delete( FindFileId( se->StepFileId() ) );
}

///////////////////////////////////////////////////////////////////////////////

void InstMgr::ChangeState( MgrNode * node, stateEnum listState ) {
    switch( listState ) {
        case completeSE:
            if( debug_level > 3 )
                cout << "#" << node->GetApplication_instance()->StepFileId() <<
                     " change node to InstMgr's complete list\n";
            node->ChangeState( listState );
            break;
        case incompleteSE:
            if( debug_level > 3 )
                cout << "#" << node->GetApplication_instance()->StepFileId() <<
                     " change node to InstMgr's incomplete list\n";
            node->ChangeState( listState );
            break;
        case newSE:
            if( debug_level > 3 )
                cout << "#" << node->GetApplication_instance()->StepFileId() <<
                     " change node to InstMgr's new list\n";
            node->ChangeState( listState );
            break;
        case deleteSE:
            if( debug_level > 3 )
                cout << "#" << node->GetApplication_instance()->StepFileId() <<
                     " change node to InstMgr's delete list\n";
            node->ChangeState( listState );
            break;
        case noStateSE:
            cout << "#" << node->GetApplication_instance()->StepFileId() <<
                 "ERROR can't change this node state\n";
            node->Remove();
            break;
    }
}

///////////////////////////////////////////////////////////////////////////////

/**************************************************
 description:
    This function returns an integer value indicating
    the number of instances with the given name appearing
    on the instance manager.
**************************************************/
int
InstMgr::EntityKeywordCount( const char * name ) {
    int count = 0;
    MgrNode * node;
    SDAI_Application_instance * se;
    int n = InstanceCount();
    for( int j = 0; j < n; ++j ) {
        node = GetMgrNode( j );
        se = node->GetApplication_instance();
        if( !strcmp( se->EntityName(),
                     PrettyTmpName( name ) ) ) {
            ++count;
        }
    }
    return count;
}

///////////////////////////////////////////////////////////////////////////////

SDAI_Application_instance *
InstMgr::GetApplication_instance( int index ) {
    MgrNode * mn = ( MgrNode * )( *master )[index];
    if( mn ) {
        return mn->GetApplication_instance();
    } else {
        return 0;
    }
}

SDAI_Application_instance *
InstMgr::GetSTEPentity( int index ) {
    MgrNode * mn = ( MgrNode * )( *master )[index];
    if( mn ) {
        return mn->GetApplication_instance();
    } else {
        return 0;
    }
}

///////////////////////////////////////////////////////////////////////////////

/**************************************************
 description:
    This function returns the first entity (by index)
    on the instance manager, which has the given
    entity name. It starts its search at starting_index,
    and returns ENTITY_NULL if a match does not occur
    before the last index is reached. This function
    does not wrap around to search indices before the
    starting_index.
**************************************************/
SDAI_Application_instance *
InstMgr::GetApplication_instance( const char * entityKeyword, int starting_index ) {
    MgrNode * node;
    SDAI_Application_instance * se;

    int count = InstanceCount();
    for( int j = starting_index; j < count; ++j ) {
        node = GetMgrNode( j );
        se = node->GetApplication_instance();
        if( !strcmp( se->EntityName(),
                     PrettyTmpName( entityKeyword ) ) ) {
            return se;
        }
    }
    return ENTITY_NULL;
}

SDAI_Application_instance *
InstMgr::GetSTEPentity( const char * entityKeyword, int starting_index ) {
    MgrNode * node;
    SDAI_Application_instance * se;

    int count = InstanceCount();
    for( int j = starting_index; j < count; ++j ) {
        node = GetMgrNode( j );
        se = node->GetApplication_instance();
        if( !strcmp( se->EntityName(),
                     PrettyTmpName( entityKeyword ) ) ) {
            return se;
        }
    }
    return ENTITY_NULL;
}

///////////////////////////////////////////////////////////////////////////////

void *
InstMgr::GetSEE( int index ) {
    MgrNode * mn = ( MgrNode * )( *master )[index];
    if( mn ) {
        return mn->SEE();
    } else {
        return 0;
    }
}
