/**
 * Copyright (c) 2002-2012 "Neo Technology,"
 * Network Engine for Objects in Lund AB [http://neotechnology.com]
 *
 * This file is part of Neo4j.
 *
 * Neo4j is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero 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 PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
package org.neo4j.consistency.report;

import java.util.EnumMap;
import java.util.Map;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.atomic.AtomicLong;

import org.neo4j.consistency.RecordType;

public class ConsistencySummaryStatistics
{
    private final Map<RecordType, AtomicInteger> inconsistentRecordCount =
            new EnumMap<RecordType, AtomicInteger>( RecordType.class );
    private final AtomicInteger totalInconsistencyCount = new AtomicInteger();
    private final AtomicLong errorCount = new AtomicLong(), warningCount = new AtomicLong();

    public ConsistencySummaryStatistics()
    {
        for ( RecordType recordType : RecordType.values() )
        {
            inconsistentRecordCount.put( recordType, new AtomicInteger() );
        }
    }

    @Override
    public String toString()
    {
        StringBuilder result = new StringBuilder( getClass().getSimpleName() ).append( '{' );
        result.append( "\n\tNumber of errors: " ).append( errorCount );
        result.append( "\n\tNumber of warnings: " ).append( warningCount );
        for ( Map.Entry<RecordType, AtomicInteger> entry : inconsistentRecordCount.entrySet() )
        {
            if ( entry.getValue().get() != 0 )
            {
                result.append( "\n\tNumber of inconsistent " )
                      .append( entry.getKey() ).append( " records: " ).append( entry.getValue() );
            }
        }
        return result.append( "\n}" ).toString();
    }

    public boolean isConsistent()
    {
        return totalInconsistencyCount.get() == 0;
    }

    public int getInconsistencyCountForRecordType( RecordType recordType )
    {
        return inconsistentRecordCount.get( recordType ).get();
    }

    public int getTotalInconsistencyCount()
    {
        return totalInconsistencyCount.get();
    }

    void update( RecordType recordType, int errors, int warnings )
    {
        if ( errors > 0 )
        {
            inconsistentRecordCount.get( recordType ).incrementAndGet();
            totalInconsistencyCount.incrementAndGet();
            errorCount.addAndGet( errors );
        }
        if ( warnings > 0 )
        {
            warningCount.addAndGet( warnings );
        }
    }
}