/******************************************************************************

  * ContactEngine.java - Base class for the plugin contact making engines

  * 

  * PicMan - The BuckoSoft Picture Manager in Java

  * Copyright(c) 2005 - Dick Balaska

  * 

  */

 package com.buckosoft.PicMan.business.contact;

 import java.awt.Color;

 import java.awt.Graphics2D;

 import java.awt.image.BufferedImage;

 import java.io.File;

 import java.text.DecimalFormat;

 import java.util.Iterator;

 import java.util.LinkedList;

 import java.util.List;

 import javax.imageio.ImageIO;

 import javax.imageio.ImageWriter;

 import javax.imageio.stream.ImageOutputStream;

 import org.apache.commons.logging.Log;

 import org.apache.commons.logging.LogFactory;

 import com.buckosoft.PicMan.business.ContactManager;

 import com.buckosoft.PicMan.business.PicManFacade;

 import com.buckosoft.PicMan.business.util.CopyFile;

 import com.buckosoft.PicMan.db.DatabaseFacade;

 import com.buckosoft.PicMan.domain.Chain;

 import com.buckosoft.PicMan.domain.ContactParams;

 import com.buckosoft.PicMan.domain.Pic;

 import com.buckosoft.PicMan.domain.Set;

 import com.buckosoft.PicMan.domain.System;

 import com.buckosoft.PicMan.domain.Thumbnail;

 /** Base class for the plugin contact making engines.  Make a single contact sheet. <br>

  * If we detect that someone else is using the PicReader (like a user editing Filters),

  * then sleep for a minute so we don't slow down the user.

  * @author Dick Balaska

  * @since 2005/08/06

  * @version $Revision: 1.2 $ <br> $Date: 2014/02/13 07:24:02 $

  * @see <a href="http://cvs.buckosoft.com/Projects/PicMan/PicMan/src/main/java/com/buckosoft/PicMan/business/contact/ContactEngine.java">ContactEngine.java</a>

  */

 public abstract class ContactEngine {

         //private final static boolean DEBUG = true;

         protected final Log logger = LogFactory.getLog(getClass());

         protected        PicManFacade        pmf;

         protected        DatabaseFacade        dbf;

         protected        System                        system;

         protected        ContactParams        contactParams;

         protected        Set                                set;

         protected        int                                cWidth;

         protected        int                                cHeight;

         protected        String                        cName;

         protected        String                        cPath;                // contains the path up to the extension i.e. C:\temp\PicMan\poster\FirstPoster_000

         protected        int                                tHeight;

         protected        String                        cUuid;

         protected        Chain                        chain;

         protected        ContactManager        contactManager;

         /** Set the reference to the PicMan API.

          * @param pmf The PicManFacade

          */

         public        void        setPicMan(PicManFacade pmf) {

                 this.pmf = pmf;

                 this.dbf = pmf.getDB();

         }

         public void setContactManager(ContactManager contactManager) {

                 this.contactManager = contactManager;

         }

         protected abstract boolean _makeContact();

         /** Make a contact sheet based on these parameters.

          * @param contactParams

          * @return true = success

          */

         public boolean makeContact(ContactParams contactParams) {

                 this.contactParams = contactParams;

                 system = dbf.getSystem();

                 chain = dbf.getChain(contactParams.getCid());

                 cUuid        = contactParams.getUuid();

                 cWidth  = chain.getContactWidth();

                 cHeight = chain.getContactHeight();

                 tHeight = contactParams.getSize();

                 cName = chain.getContactPrefix() + cUuid;

                 cPath = contactParams.getOutputDirectory() + "/" + cName;

                 set = dbf.getSet(contactParams.getSetName());

                 return(_makeContact());

         }

         protected LinkedList<String> randomize(List<String> in) {

                 LinkedList<String> out = new LinkedList<String>();

                 while (!in.isEmpty()) {

                         double d = Math.random() * in.size();

                         out.add(in.remove((int)d));

                 }

                 return(out);

         }

         private final DecimalFormat df = new DecimalFormat("0.##");

         protected int drawThumb(Graphics2D g, String tName, int tHeight, int x, int y) {

                 Pic                        pic;

                 Thumbnail        tn;

                 pic = pmf.getDB().getPic(tName);

                 if (pmf.getPicReader().getQueueDepth() > 0) {

                         logger.info("Queue depth " + pmf.getPicReader().getQueueDepth() + " --- sleeping");

                         try {

                                 java.lang.Thread.sleep(3000);

                         } catch (InterruptedException e) {

                         }

                 }

                 String label = null;

                 if (system.isShowRateOnPics())

                         label = df.format(dbf.getPicRate(tName, set, contactParams.getSize()));

                 tn = pmf.getPicReader().getThumbNail(pic, tHeight, label);

                 if (tn.isXThumb() && system.isSkipXThumbs())

                         return(0);

                 g.drawImage(tn.getImage(), null, x, y);                

                 return(tn.getImage().getWidth());

         }

         protected void drawContactLabel(Graphics2D g) {

                 int xp = 300;

                 int yp = 12;

                 String        text = chain.getContactPrefix() + cUuid;

                 g.setColor(Color.BLACK);

                 g.drawString(text, xp+1, yp+1);

                 g.setColor(Color.WHITE);

                 g.drawString(text, xp,   yp);

         }

         protected boolean isAbort() {

                 return(this.contactManager.isAbort());

         }

         protected boolean writePic(BufferedImage bi, boolean makeBackup) {

                 Iterator<ImageWriter> writers = ImageIO.getImageWritersByFormatName("jpg");

                 ImageWriter writer = (ImageWriter)writers.next();

                 File file = new File(cPath + ".jpg");

                 logger.info("Writing jpg to '" + file.getPath() + "'");

                 try {

                         ImageOutputStream oos = ImageIO.createImageOutputStream(file);

                         writer.setOutput(oos);

                         writer.write(bi);

                         oos.close();

                 } catch (Exception e) {

                         bi = null;

                         pmf.addError(e);

                         return(false);

                 }

                 if (makeBackup)

                         CopyFile.makeBackup(pmf, file);

                 logger.info("Done with " + cUuid);

                 return(true);

         }

 }