package org.mpi.openmind.scripts;

import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;

import org.apache.log4j.ConsoleAppender;
import org.apache.log4j.Level;
import org.apache.log4j.Logger;
import org.apache.log4j.PatternLayout;
import org.mpi.openmind.cache.WrapperService;
import org.mpi.openmind.repository.bo.Attribute;
import org.mpi.openmind.repository.bo.Entity;
import org.mpi.openmind.repository.bo.Node;
import org.mpi.openmind.repository.services.PersistenceService;
import org.mpi.openmind.repository.services.ServiceRegistry;
import org.mpi.openmind.repository.utils.OMUtils;

public class CodexOwnValueGenerator {
	
	private static Logger logger = Logger.getLogger(CodexOwnValueGenerator.class);

	private WrapperService ot;
	private PersistenceService ss;
	
	public CodexOwnValueGenerator(WrapperService ot){
		this.ot = ot;
		this.ss = ot.getPS();
	}
	
	
	public void execute(){
		try {
			logger.info("Starting CodexOwnValueGenerator");
			List<Entity> codexList = ot.getLightweightAssertions("CODEX", null, -1);
			logger.info("Codices="+ codexList.size());
			List<Node> dirtyEntities = new ArrayList<Node>();
			int count = 0;
			int countCodicesNonCollection = 0;
			for(Entity codex : codexList){

				Attribute codexIdAtt = ss.getAttributeByName(codex, "identifier");
				if(codexIdAtt == null){
					throw new Exception("identifier is null for " + codex);
				}
				String ov = new String();
				
				List<Entity> list0 = this.ss.getTargetsForSourceRelation(codex, "is_part_of", "COLLECTION", 1);
				
				
				Entity collection;
				if(list0.size() > 0){
					collection = list0.get(0);
					if(collection != null){
						ov = collection.getOwnValue() + "_" + codexIdAtt.getValue();
					}else{
						ov = "empty_" + codexIdAtt.getValue();
						countCodicesNonCollection++;
					}
					if(count % 100 == 0){
						int size = codexList.size();
						
						logger.info("* " + OMUtils.percentage(count, size) + " %");
					}
					count++;
					codex.setOwnValue(ov);
					dirtyEntities.add(codex);
				}
			}
			ot.saveNodeListOnlyForScripts(dirtyEntities);
			
			logger.info("Summary");
			logger.info("Codices without collection=" + countCodicesNonCollection);
			logger.info("Total=" + count);
			
			
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
	
	public static void main(String[] args) {
		ServiceRegistry services = new ServiceRegistry();
		CodexOwnValueGenerator script = new CodexOwnValueGenerator(services.getWrapper());
		script.execute();
		System.exit(0);	
	}
}