/******************************************************************************
    * PicSizeUpdater.java - Update the width/height for each pic in the database.
    * 
    * PicMan - The BuckoSoft Picture Manager in Java
    * Copyright(c) 2007 - Dick Balaska
    * 
    */
   package com.buckosoft.PicMan.business.util;
   
  import java.awt.Dimension;
  import java.io.File;
  import java.util.Date;
  import java.util.Iterator;
  import java.util.List;
  
  import org.apache.commons.logging.Log;
  import org.apache.commons.logging.LogFactory;
  
  import com.buckosoft.PicMan.business.PicManFacade;
  import com.buckosoft.PicMan.domain.JobLogEntry;
  import com.buckosoft.PicMan.domain.Pic;
  
  /** Update the width/height for each pic in the database. <br/>
   * The first 12702 pictures went into the database with a 0/0 size,
   * and Mosaic needs to know the sizes to do it's work. <br/>
   * The first 15077 pictures went into the database with the incorrect date stamp from the pics.
   * @author Dick Balaska
   * @since 2007/12/13
   */
  public class PicSizeUpdater {
  	private	static final boolean DEBUG = true;
  	protected final Log logger = LogFactory.getLog(getClass());
  
  	private	int picProcessing = 0;
  	private	PicManFacade	pmf;
  
  	/** Set the reference to the PicMan API.
  	 * @param pmf The PicManFacade
  	 */
  	public	void setPicMan(PicManFacade pmf) {
  		this.pmf = pmf;
  	}
  
  	/** Which ordinal picture are we working on?
  	 * This is just a status indicator
  	 * @return the picProcessing
  	 */
  	public int getPicProcessing() {
  		return picProcessing;
  	}
  
  	/** Primary entry point called from BatchManager.
  	 * Scan the entire database, read each Pic, and update it's size in the database.
  	 */
  	public void run() {
  		List<Pic> pics = pmf.getDB().getPics();
  		Iterator<Pic> iter = pics.iterator();
  		picProcessing = 0;
  		JobLogEntry jle = new JobLogEntry();
  		jle.setType(JobLogEntry.PICSIZE);
  		//jle.setChainId();
  		//jle.setName();
  		pmf.addJobToLog(jle);
  		Pic pic;
  		File file;
  		while (iter.hasNext()) {
  			picProcessing++;
  			pic = iter.next();
  //			if (pic.getHeight() != 0 && pic.getWidth() != 0)
  //				continue;
  			//if (DEBUG)
  			//	logger.info("Update: " + pic.getLocation() + ":" + pic.getName());
  			Dimension d = pmf.determinePicSize(pic);
  			if (d.height == -1) {
  				logger.info("Can't determine size for pic: " + pic.getName());
  				d.height = 0;
  				d.width = 0;
  			}
  			long time = 0;
  			String s = pic.getLocation().replace('\\', '/');
  			String fullPath;
  			if (pic.getRid() != 0) {
  				fullPath = pmf.getDB().getRoot(pic.getRid()).getPath() + "/" + s
  					+ "/" + pic.getName() + ".jpg";
  				try {
  					file = new File(fullPath);
  					time = file.lastModified();
  				} catch (Exception e) {
  					logger.warn("Can't get date for pic" + pic.getName());
  				}
  			}
  			if (d.height != pic.getHeight() || d.width != pic.getWidth()
  			 || !s.equals(pic.getLocation())
  			 || pic.getDate().getTime() != time) {
  				if (DEBUG)
  					logger.info("Updating: " + pic.getName());
  				pic.setHeight(d.height);
  				pic.setWidth(d.width);
  				pic.setLocation(s);
 				pic.getDate().setTime(time);
 				pmf.getDB().updatePic(pic);
 			}
 			
 		}
 		jle.setEndTime(new Date());
 	}
 }