package net.sf.statcvs.pages;

 import java.text.NumberFormat;

 import java.util.ArrayList;

 import java.util.Collection;

 import java.util.Collections;

 import java.util.Iterator;

 import java.util.List;

 import net.sf.statcvs.Messages;

 import net.sf.statcvs.charts.ChartImage;

 import net.sf.statcvs.charts.DirectoryPieChartMaker.CodeDistributionChartMaker;

 import net.sf.statcvs.charts.TimeBarChartMaker.HourBarChartMaker;

 import net.sf.statcvs.charts.TimeBarChartMaker.WeekdayBarChartMaker;

 import net.sf.statcvs.model.Author;

 import net.sf.statcvs.model.Commit;

 import net.sf.statcvs.model.Repository;

 import net.sf.statcvs.model.Revision;

 import net.sf.statcvs.output.ReportConfig;

 import net.sf.statcvs.reports.DirectoriesForAuthorTableReport;

 /**

  * @author anja

  * @author Richard Cyganiak (richard@cyganiak.de)

  * @version $Id: DeveloperPageMaker.java,v 1.11 2008/04/02 11:22:14 benoitx Exp $

  */

 public class DeveloperPageMaker {

     private final static int RECENT_COMMITS_LENGTH = 20;

     private final static NumberFormat PERCENT_FORMAT = NumberFormat.getPercentInstance();

     static {

         PERCENT_FORMAT.setMinimumFractionDigits(1);

         PERCENT_FORMAT.setMaximumFractionDigits(1);

     }

     public static String getURL(final Author developer) {

         return getFilename(developer) + ".html";

     }

     private static String getFilename(final Author developer) {

         return "user_" + HTML.escapeAuthorName(developer.getName());

     }

     private final ReportConfig config;

     private final Author developer;

     private final Repository repository;

     public DeveloperPageMaker(final ReportConfig config, final Author developer) {

         this.config = config;

         this.developer = developer;

         this.repository = config.getRepository();

     }

     public Page toFile() {

         final ChartImage hourChart = new HourBarChartMaker(this.config, this.developer.getRevisions(), Messages.getString("ACTIVITY_TIME_FOR_AUTHOR_TITLE")

                 + " " + this.developer.getRealName(), "activity_time_" + HTML.escapeAuthorName(this.developer.getName()) + ".png").toFile();

         final ChartImage weekdayChart = new WeekdayBarChartMaker(this.config, this.developer.getRevisions(), Messages

                 .getString("ACTIVITY_DAY_FOR_AUTHOR_TITLE")

                 + " " + this.developer.getRealName(), "activity_day_" + HTML.escapeAuthorName(this.developer.getName()) + ".png").toFile();

         final ChartImage codeDistributionChart = new CodeDistributionChartMaker(this.config, this.developer).toFile();

         String title;

         if (this.config.isDeveloper(this.developer)) {

             title = this.config.getProjectName() + " Developers: " + this.developer.getRealName();

         } else {

             title = "Non-developer Login: " + this.developer.getRealName();

         }

         final Page page = this.config.createPage(getFilename(this.developer), this.developer.getRealName(), title);

         page.addAttribute("Login name", this.developer.getName());

         if (this.developer.getRealName() != null && !this.developer.getRealName().equals(this.developer.getName())) {

             page.addAttribute("Real name", this.developer.getRealName());

         }

         if (this.developer.getEmail() != null && this.developer.getEmail().length() > 0) {

             page.addRawAttribute("Email", "<a href=\"mailto:" + this.developer.getEmail() + "\">" + this.developer.getEmail() + "</a>");

         }

         if (this.developer.getHomePageUrl() != null && this.developer.getHomePageUrl().length() > 0) {

             page.addRawAttribute("Home Page", "<a href=\"" + this.developer.getHomePageUrl() + "\">" + this.developer.getHomePageUrl() + "</a>");

         }

         if (this.developer.getImageUrl() != null && this.developer.getImageUrl().length() > 0) {

             page.addRawAttribute("Image", "<img src=\"" + this.developer.getImageUrl() + "\" alt=\"" + this.developer.getRealName() + "\"/>");

         }

         page.addAttribute("Total Commits", getNumberAndPercentage(this.developer.getRevisions().size(), this.repository.getRevisions().size()));

         page.addAttribute("Lines of Code", getNumberAndPercentage(countContributedLines(this.developer.getRevisions()), countContributedLines(this.repository

                 .getRevisions())));

         page.addAttribute("Most Recent Commit", ((Revision) this.developer.getRevisions().last()).getDate());

         page.addSection(Messages.getString("ACTIVITY_TITLE"));

         page.add(hourChart);

         page.add(weekdayChart);

         page.addSection("Activity in Directories");

         page.add(new DirectoriesForAuthorTableReport(this.config, this.developer));

         if (codeDistributionChart != null) {

             page.add(codeDistributionChart);

         }

         page.addSection(Messages.getString("MOST_RECENT_COMMITS"));

         page.addRawContent(new CommitListFormatter(this.config, getRecentCommits(), Collections.EMPTY_LIST, RECENT_COMMITS_LENGTH, false).render());

         return page;

     }

     private List getRecentCommits() {

         final List results = new ArrayList();

         final Iterator it = this.repository.getCommits().iterator();

         while (it.hasNext()) {

             final Commit commit = (Commit) it.next();

             if (this.developer.equals(commit.getAuthor())) {

                 results.add(commit);

             }

         }

         return results;

     }

     private int countContributedLines(final Collection revisions) {

         int result = 0;

         final Iterator it = revisions.iterator();

         while (it.hasNext()) {

             final Revision element = (Revision) it.next();

             result += element.getNewLines();

         }

         return result;

     }

     /**

      * returns the percentage of a given total count and the count.

      * This will work, because division by zero is not a problem with doubles:

      * you get NaN (and the formatter will format that too).

      * @author Jan Dockx

      * @param value

      * @param total

      * @return String percentage string

      */

     private String getNumberAndPercentage(final int value, final int total) {

         final double factor = (double) value / (double) total;

         return value + " (" + PERCENT_FORMAT.format(factor) + ")";

     }

 }