DossierGanttWrapper.java

Go to the documentation of this file.

/*
 * Turró i Cutiller Foundation. License notice.
 * Copyright (C) 2023 Lluis Turró Cutiller <http://www.turro.org/>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
package org.turro.dossier.gantt;
 
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Set;
import java.util.stream.Collectors;
import org.amic.util.date.CheckDate;
import org.turro.dossier.db.DossierPU;
import org.turro.dossier.entity.Dossier;
import org.turro.dossier.entity.Issue;
import org.turro.dossier.entity.IssuePredecessor;
import org.turro.dossier.task.Tasks;
import org.turro.jpa.Dao;
import org.turro.sql.SqlClause;
import org.turro.util.Cached;
import org.turro.util.Comparison;
import org.turro.util.Converter;
import org.turro.web.gantt.GanttWrapper;
 
public class DossierGanttWrapper extends GanttWrapper {
 
  private final Dossier dossier;
  private final List<Issue> issues;
  
  private boolean publishable = true;
 
  public DossierGanttWrapper(Dossier dossier) {
    this.dossier = dossier;
    this.issues = new ArrayList<>();
  }
  
  public boolean getItFits() {
    return !SqlClause.select("i").from("Issue i")
            .where().equal("i.milestone", true)
            .startIf(publishable)
            .and().equal("i.publishable", true)
            .endIf()
            .startIf(dossier != null)
            .and().equal("i.dossier", dossier)
            .endIf()
            .and().group().isNotNull("i.startDate")
            .or().isNotNull("i.delivery").endGroup()
            .and().notExists(
                    SqlClause.select("p").from("IssuePredecessor p")
                    .where("p.source = i.id")            
            )
            .dao(dao.get())
            .max(1)
            .resultList(Issue.class)
            .isEmpty();
  }
  
  public String toJson() {
    getIssues().forEach(i -> {
      addItem(i);
    });
    return items.toJson();
  }
 
  private List<Issue> getIssues() {
    return SqlClause.select("i").from("Issue i")
            .where().equal("i.milestone", true)
            .startIf(publishable)
            .and().equal("i.publishable", true)
            .endIf()
            .startIf(dossier != null)
            .and().equal("i.dossier", dossier)
            .endIf()
            .and().group().isNotNull("i.startDate")
            .or().isNotNull("i.delivery").endGroup()
            .and().notExists(
                    SqlClause.select("p").from("IssuePredecessor p")
                    .where("p.source = i.id")            
            )
            .dao(dao.get())
            .resultList(Issue.class);
  }
  
  private void addItem(Issue issue) {
    Set<IssuePredecessor> incoming = issue.getSources();
    String dependencies = incoming.stream()
            .map(i -> i.getSource().getId().toString())
            .collect(Collectors.joining(","));
    Date start = getStart(issue, issue.getStartDate());
    items.addItem(issue.getId().toString(), 
            issue.getDescription(), dependencies, 
            getStart(issue, issue.getStartDate()), 
            getDelivery(start, issue.getDelivery()), 
            Converter.STANDARD.convert(percentDone(issue), Integer.class),
            getCssClass(issue));
    incoming.stream()
            .map(p -> p.getSource())
            .sorted((i1, i2) -> compare(i1, i2))
            .forEach(i -> addItem(i));
  }
  
  private int compare(Issue i1, Issue i2) {
    return Comparison.ascendant()
            .compare(i1.getStartDate(), i2.getStartDate())
            .compare(i1.getDescription(), i2.getDescription())
            .get();
  }
  
  private Date getStart(Issue issue, Date startDate) {
    if(startDate == null) {
      for(IssuePredecessor p : issue.getTargets()) {
        Date tmp = p.getTarget().getStartDate();
        if(tmp != null) {
          startDate = tmp;
        } else {
          startDate = getStart(p.getTarget(), tmp);
        }
        if(startDate != null) {
          startDate = new CheckDate(startDate).addDays(-1).getDate();
          break;
        }
      }      
    }
    return startDate;
  }
 
  private Date getDelivery(Date start, Date delivery) {
    if(delivery == null) {
      delivery = new CheckDate(start).addDays(1).getDate();
    }
    return delivery;
  }
 
  private String getCssClass(Issue issue) {
    String css = "gantt-task";
    if(issue.isMilestone()) {
      css += " milestone";
    }
    if(issue.getStatus().isFinished()) {
      css += " finished";
    }
    return css;
  }
 
  /* Done */
 
  public double percentDone(Issue issue) {
    return Tasks.from(issue, false, false).getPercentTasksDone();
  }
  
  /* Dao */
  
  private final Cached<Dao> dao = Cached.instance(() -> new DossierPU());
  
}