package net.sf.statcvs.pages;

 import java.util.ArrayList;

 import java.util.Calendar;

 import java.util.Date;

 import java.util.GregorianCalendar;

 import java.util.Iterator;

 import java.util.List;

 import net.sf.statcvs.model.Repository;

 import net.sf.statcvs.output.ReportConfig;

 public class CommitLogPageGroupMaker {

     private final ReportConfig config;

     private final Repository repository;

     public CommitLogPageGroupMaker(final ReportConfig config) {

         this.config = config;

         this.repository = config.getRepository();

     }

     public PageGroup getPages() {

         final PageGroup pages = new PageGroup("Commit Logs");

         List commits = this.repository.getCommits();

         if (commits == null || commits.isEmpty()) {

             return null;

         }

         final Date start = this.repository.getFirstDate();

         final Date end = this.repository.getLastDate();

         final Calendar calendar = new GregorianCalendar();

         calendar.setTime(end);

         final Calendar startCal = new GregorianCalendar();

         startCal.setTime(start);

         final List results = new ArrayList();

         boolean firstPage = true;

         while (true) {

             final int year = calendar.get(Calendar.YEAR);

             final int month = calendar.get(Calendar.MONTH);

             final NavigationNode page = new CommitLogPageMaker(this.config, year, month, commits, firstPage).toFile();

             results.add(page);

             if (calendar.get(Calendar.YEAR) == startCal.get(Calendar.YEAR) && calendar.get(Calendar.MONTH) == startCal.get(Calendar.MONTH)) {

                 break;

             }

             firstPage = false;

             calendar.add(Calendar.MONTH, -1);

         }

         final Iterator it = results.iterator();

         while (it.hasNext()) {

             pages.add((NavigationNode) it.next());

         }

         pages.setShowLinkToPreviousSibling(true);

         return pages;

     }

 }