package org.litesoft.aokeyhole.swing.mains.mementobeans.support;

import java.io.*;
import java.util.*;

import org.litesoft.aokeyhole.persist.*;
import org.litesoft.core.simpletypes.*;
import org.litesoft.core.typeutils.*;
import org.litesoft.textfiledirectory.*;

public class BeanSubSystemState implements BeanMagicStrings
{
    private final String mName;
    private final String mPackage;
    private final TextFileDirectory mTextFileDirectory;
    private final Map<String, BeanReader> mOriginalBeansByObjectName = Maps.newHashMap();
    private BeanReader[] mBeanReaders = null; // null == unread
    private int mNextReader = 0;

    public BeanSubSystemState( String pName, String pPackage, TextFileDirectory pTextFileDirectory )
    {
        mName = pName;
        mPackage = pPackage;
        mTextFileDirectory = pTextFileDirectory;
    }

    public String getName()
    {
        return mName;
    }

    public synchronized BeanReader getNextBeanReader()
    {
        if ( mBeanReaders == null )
        {
            populateOriginalBeans();
            mBeanReaders = mOriginalBeansByObjectName.values().toArray( new BeanReader[mOriginalBeansByObjectName.size()] );
        }
        return (mNextReader < mBeanReaders.length) ? mBeanReaders[mNextReader++] : null;
    }

    public SubSystemWriter getSubSystemWriter( Map<String, BeanObjectBuilder> pObjectBuildersByObjectName )
    {
        return new OurSubSystemWriter(pObjectBuildersByObjectName);
    }

    private void populateOriginalBeans()
    {
        for ( String zFile : mTextFileDirectory.getFiles( SOURCE_FILE_EXTENSION ) )
        {
            TextFile zTextFile = mTextFileDirectory.load( zFile );
            BeanReader zReader = BeanReader.createFor( zTextFile.getLines() );
            if (zReader != null)
            {
                mOriginalBeansByObjectName.put( zReader.getName(), zReader );
            }
        }
    }

    private class OurSubSystemWriter implements SubSystemWriter
    {
        private final Map<String, BeanObjectBuilder> mObjectBuildersByObjectName;

        private OurSubSystemWriter( Map<String, BeanObjectBuilder> pObjectBuildersByObjectName )
        {
            mObjectBuildersByObjectName = pObjectBuildersByObjectName;
        }

        @Override
        public void write()
                throws IOException
        {

            //To change body of implemented methods use File | Settings | File Templates.
        }
    }

}