FunnelGoalsVM.java

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/*
 * Turró i Cutiller Foundation. License notice.
 * Copyright (C) 2022 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.web.funnel.model;
 
import java.util.List;
import org.turro.elephant.db.ElephantPU;
import org.turro.elephant.entities.web.WebGoal;
import org.turro.elephant.util.Messages;
import org.turro.elephant.util.Toasts;
import org.turro.i18n.I_;
import org.turro.jpa.Dao;
import org.turro.sql.SqlClause;
import org.turro.util.Cached;
import org.turro.zkoss.dialog.DialogField;
import org.turro.zkoss.dialog.Dialogs;
import org.zkoss.bind.BindUtils;
import org.zkoss.bind.annotation.NotifyChange;
import org.zkoss.zk.ui.Executions;
import org.zkoss.zul.Textbox;
 
public class FunnelGoalsVM {
 
  public WebGoal getSelected() {
    return selected;
  }
 
  public void setSelected(WebGoal selected) {
    this.selected = selected;
    BindUtils.postNotifyChange(null, null, FunnelGoalsVM.this, 
            "selected", "showForm", "nextsModel");
  }
 
  public boolean isShowForm() {
    return selected != null;
  }
  
  public void addGoal() {
    Dialogs.title(I_.get("Add"))
          .width("400px")
          .height("250px")
          .addField(DialogField.field("GoalAction"))
          .onOk((dialogs) -> {
            String goalAction = dialogs.<Textbox>getEditor("GoalAction").getValue();
            if(notInModel(goalAction)) {
              WebGoal wi = new WebGoal();
              wi.setGoalAction(goalAction);
              if(wi.isValid()) {
                model.add(wi);
                selected = wi;
                BindUtils.postNotifyChange(null, null, FunnelGoalsVM.this, 
                        "model", "selected", "showForm");
              } else {
                Toasts.message("GoalActions should not include spaces or punctuation characters.").show();
              }
            } else {
              Toasts.message("GoalAction already in the model.").show();
            }
          })
          .emptyCancel()
          .show();
  }
  
  @NotifyChange({"model", "selected", "showForm"})
  public void save() {
    model.stream().filter(wi -> wi.isEmpty() && !wi.isNew())
            .forEach(wi -> dao.get().deleteEntity(wi));
    model.removeIf(wi -> wi.isEmpty());
    model.forEach(wi -> wi.compose());
    dao.get().saveEntities(model);
    Executions.getCurrent().sendRedirect("");
  }
  
  public void delete() {
    Messages.confirmDeletion().add(selected.getItemLabel()).show(() -> {
      dao.get().deleteObject(selected);
      Executions.getCurrent().sendRedirect("");
    });
  }
    
  /* Utils */
  
  private boolean notInModel(String actionGoal) {
    return !getModel().stream().anyMatch(wg -> wg.getGoalAction().equals(actionGoal));
  }
  
  /* Models */
  
  private WebGoal selected;
  
  private List<WebGoal> model;
  
  public List<WebGoal> getModel() {
    if(model == null) {
      model = SqlClause.select("wg").from("WebGoal wg")
              .orderBy("ordering, goalAction")
              .dao(dao.get())
              .resultList(WebGoal.class);
    }
    return model;
  }
  
  /* Dao */
  
  private final Cached<Dao> dao = Cached.instance(() -> new ElephantPU());
 
}