OrganigramVM.java

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/*
 * Turró i Cutiller Foundation. License notice.
 * Copyright (C) 2020 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.contacts.organigram;
 
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.stream.Collectors;
import org.turro.auth.Authentication;
import org.turro.contacts.Contact;
import org.turro.i18n.I_;
import org.turro.plugin.contacts.ContactRelations;
import org.turro.plugin.contacts.IContact;
import org.turro.plugin.contacts.IContactRelation;
import org.zkoss.bind.annotation.ExecutionArgParam;
import org.zkoss.bind.annotation.Init;
import org.zkoss.zk.ui.Executions;
import org.zkoss.zul.DefaultTreeModel;
import org.zkoss.zul.DefaultTreeNode;
import org.zkoss.zul.TreeModel;
import org.zkoss.zul.TreeNode;
 
public class OrganigramVM {
  
  private IContact contact = Authentication.getIContact();
  
  @Init
  public void init(@ExecutionArgParam("contact") IContact contact) {
    if(contact != null) {
      this.contact = contact;
    } else {
      Object attrContact = Executions.getCurrent().getAttribute("contact");
      if(attrContact instanceof Contact) {
        this.contact = ((Contact) attrContact).getIContact();
      } else if(attrContact instanceof IContact) {
        this.contact = (IContact) attrContact;
      }
    }
  }
 
  public IContact getContact() {
    return contact;
  }
  
  public TreeModel getModel() {
    if(contact == null) return new DefaultTreeModel(null);
    return new DefaultTreeModel(new DefaultTreeNode(
            I_.get("Organigram"), initTreeModel(), true));
  }
 
  private List<TreeNode> initTreeModel() {
    Set<String> roots = new HashSet<>();
    gatherRoots(contact.getId(), roots);
    List<TreeNode> relRoots = new ArrayList<>();
    addRoots(relRoots, roots);
    return relRoots;
  }
  
  private void gatherRoots(String idContact, Set<String> roots) {
    Set<IContactRelation> rels = ContactRelations.getBusiness(idContact, ContactRelations.MODE_ALL)
            .stream().filter(r -> r.asWorker()).collect(Collectors.toSet());
    if(rels.isEmpty()) {
      roots.add(idContact);
    } else {
      // check not itself
      rels.stream().filter((rc) -> !rc.getRelatedId().equals(idContact)).forEach((rel) -> {
        gatherRoots(rel.getRelatedId(), roots);
      });
    }
  }
 
  private void addRoots(List<TreeNode> relRoots, Set<String> roots) {
    for(String root : roots) {
      relRoots.add(new DefaultTreeNode(emptyRootRelation(root), getRelations(root)));
    }
  }
 
  private List<TreeNode> getRelations(String idRoot) {
    List<TreeNode> nodes = new ArrayList<>();
    ContactRelations.getWorkers(idRoot, ContactRelations.MODE_ALL)
            .forEach((rel) -> {
      List<TreeNode> rels = getRelations(rel.getRelatedId());
      if(rels == null) {
        nodes.add(new DefaultTreeNode(rel));
      } else {
        nodes.add(new DefaultTreeNode(rel, rels));
      }
    });
    return nodes.isEmpty() ? null : nodes;
  }
  
  private IContactRelation emptyRootRelation(String idRoot) {
    return new RootRelation(idRoot);
  } 
 
}