BrightSide/elephant-dossier/src/main/java/org/turro/dossier/www/CategoriesTree.java

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/*
 * Turró i Cutiller Foundation. License notice.
 * Copyright (C) 2015 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.www;
 
import java.util.List;
import org.turro.string.Strings;
import org.turro.attach.www.AttachCtrl;
import org.turro.auth.Authentication;
import org.turro.collections.Item;
import org.turro.dossier.db.DossierPU;
import org.turro.dossier.dossier.DossierCounter;
import org.turro.dossier.entity.Category;
import org.turro.dossier.entity.DossierStatus;
import org.turro.dossier.entity.DossierType;
import org.turro.dossier.search.CategoryResults;
import org.turro.elephant.context.Application;
import org.turro.elephant.context.ElephantContext;
import org.turro.elephant.context.IConstructor;
import org.turro.elephant.db.WhereClause;
import org.turro.elephant.util.Images;
import org.turro.entities.Entities;
import org.turro.file.util.FileAttach;
import org.turro.jpa.content.TreeDaoContentIterator;
import org.turro.marker.ElephantMarker;
import org.turro.path.Path;
import org.turro.plugin.contacts.IContact;
import org.turro.polls.PollsCtrl;
import org.turro.util.Arrays;
import org.turro.visual.CategoryVisualElements;
import org.turro.visual.VisualElements;
import org.turro.www.commentit.CommentItCtrl;
import org.turro.www.describeit.DescribeItCtrl;
import org.turro.www.starit.StarItCtrl;
import org.turro.www.voteit.VoteItCtrl;
 
public class CategoriesTree extends TreeDaoContentIterator<Object, Object> {
 
  private final String categories, types[], status[];
 
  public CategoriesTree(IConstructor constructor, String context, IContact contact, String categories, String types[], String status[]) {
    super(new DossierPU(), new ElephantMarker(constructor), context, contact);
    this.categories = categories;
    this.types = types;
    this.status = status;
  }
 
  @Override
  protected WhereClause getItemClause(String currPath) {
    WhereClause wc = new WhereClause();
    wc.addClause("select g from Category g");
    wc.addClause("where 1=1");
    if(Strings.isBlank(currPath)) {
      wc.addClause("and 1=2");
    } else {
      wc.addClause("and g.fullDescription = :pathName");
      wc.addNamedValue("pathName", Category.getPathToFullDescription(currPath));
    }
    return wc;
  }
 
  @Override
  protected Object getEntity(Object value) {
    return value instanceof String ? getDao().find(Category.class, Long.valueOf((String) value)) : value;
  }
 
  @Override
  protected WhereClause getChildrenClause(String currPath) {
    WhereClause wc = new WhereClause();
    wc.addClause("select g from Category g");
    wc.addClause("where 1=1");
    if(Strings.isBlank(currPath)) {
      if("all".equals(categories)) {
        wc.addClause("and g.parent is null");
      } else {
        wc.addClause("and g.id in (" + categories + ")");
      }
    } else {
      wc.addClause("and g.parent.fullDescription = :pathName");
      wc.addNamedValue("pathName", Category.getPathToFullDescription(currPath));
    }
    if(isRestricted() && !Application.getApplication().isInRole("dossier:all")) {
      CategoryResults.addParticipantCategoryAffiliance(wc, "and", Authentication.getIContact().getId(), "g");
    }
    addFilters(wc);
    wc.addClause("order by g.description");
    return wc;
  }
 
  @Override
  protected WhereClause getLeafClause(String currPath) {
    return null;
  }
 
  @Override
  protected Object getId(Object item) {
    return item instanceof Category ? ((Category) item).getDescription() : new Path((String) item).getLastNode();
  }
 
  @Override
  protected Object getParentId(Object item) {
    return item instanceof Category ? ((Category) item).getParent().getDescription() : new Path((String) item).getLastNode();
  }
  
  public String getImageSrc(Item item) {
    return ElephantContext.getRootWebPath() + Images.getImage("group");
  }
 
  public String getFolderImageSrc() {
    return ElephantContext.getRootWebPath() + Images.getImage("group");
  }
  
  public String getCssClass(Item item) {
    Category cat = (Category) item.getValue();
    String selected = getSelectedItem();
    String path = cat.getPath();
    if(path == null || selected == null) {
      return "";
    } else if(path.equals(selected)) {
      return "active";
    } else if(selected.startsWith(path)) {
      return "inpath";
    } else {
      return "";
    }
  }
 
  @Override
  protected void prepareTree(ElephantMarker marker, List<Item<Object, Object>> items) {
    String selPath = getSelectedItem();
    if(Strings.isBlank(selPath) && !items.isEmpty()) {
      selPath = ((Category) ((Item) items.iterator().next()).getValue()).getPath();
      setSelectedItem(selPath);
    }
    marker.put("selpath", selPath);
    marker.put("dossierCounter", new DossierCounter(categories, types, status, isRestricted()));
  }
 
  @Override
  protected void prepareItem(ElephantMarker marker, Object item) {
    // do nothing
  }
 
  @Override
  protected String getTemplateRoot() {
    return "categories";
  }
 
  @Override
  protected Object doVotesCtrl(Object e) {
    return Entities.getController(e).configureCtrl(
            new VoteItCtrl(constructor), getContact());
  }
 
  @Override
  protected Object doInterestCtrl(Object e) {
    return Entities.getController(e).configureCtrl(
            new StarItCtrl(constructor), getContact());
  }
 
  @Override
  protected Object doCommentsCtrl(Object e) {
    return Entities.getController(e).configureCtrl(
            new CommentItCtrl(constructor), getContact());
  }
 
  @Override
  protected Object doAttachmentsCtrl(Object e) {
    return Entities.getController(e).configureCtrl(
            new AttachCtrl(constructor), getContact());
  }
 
  @Override
  protected Object doFilesCtrl(Object e) {
    return Entities.getController(e).configureCtrl(
            new FileAttach(DossierPU.getObjectPath(e)), getContact());
  }
 
  @Override
  protected Object doDescriptionsCtrl(Object e) {
    return Entities.getController(e).configureCtrl(
            new DescribeItCtrl(constructor), getContact());
  }
 
  @Override
  protected Object doPollsCtrl(Object e) {
    return Entities.getController(e).configureCtrl(
            new PollsCtrl(constructor), getContact());
  }
  
  @Override
  protected VisualElements loadVisuals() {
    return CategoryVisualElements.load();
  }
 
  private void addFilters(WhereClause wc) {
    if(!Arrays.isEmpty(types, status)) {
      wc.addClause("and exists (");
      wc.addClause("select d from Dossier d");
      wc.addClause("where d.uniquePath like concat(g.uniquePath, '/%')");
      if(!Arrays.isEmpty(types)) {
        wc.addClause("and d.type in (:types)");
        wc.addNamedValue("types", Arrays.asList(types).map(t -> typeValue((String) t)));
      }
      if(!Arrays.isEmpty(status)) {
        wc.addClause("and d.status in (:status)");
        wc.addNamedValue("status", Arrays.asList(status).map(s -> statusValue((String) s)));
      }
      wc.addClause(")");
    }
  }
  
  private DossierType typeValue(String name) {
    return DossierType.valueOf(name);
  }
 
  private DossierStatus statusValue(String name) {
    return DossierStatus.valueOf(name);
  }
 
}