SynonymsVM.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.synonyms;
 
import java.util.List;
import java.util.Set;
import org.turro.string.Strings;
import org.turro.command.Context;
import org.turro.elephant.db.ElephantPU;
import org.turro.elephant.entities.db.Synonyms;
import org.turro.i18n.I_;
import org.turro.jpa.Dao;
import org.turro.zkoss.dialog.InputDialog;
import org.turro.zul.frame.Framework;
import org.zkoss.bind.BindUtils;
import org.zkoss.bind.annotation.BindingParam;
import org.zkoss.bind.annotation.Command;
import org.zkoss.bind.annotation.NotifyChange;
 
public class SynonymsVM {
 
  private Synonyms selected;
  private String searchValue;
  
  public SynonymsVM() {
  }
 
  public Synonyms getSelected() {
    return selected;
  }
 
  public void setSelected(Synonyms selected) {
    this.selected = selected;
  }
 
  public String getSearchValue() {
    return searchValue;
  }
 
  public void setSearchValue(String searchValue) {
    this.searchValue = searchValue;
  }
 
  public boolean isSelected(Synonyms synonyms) {
    return selected != null && synonyms != null && 
           selected.getId() != null && synonyms.getId() != null &&
           selected.getId().equals(synonyms.getId());
  }
  
  @NotifyChange("model")
  @Command("update")
  public void update() {}
 
  @Command
  public void addGroup() {
    selected = new Synonyms();
    addWord();
  }
  
  @Command
  @NotifyChange({"wordModel", "model"})
  public void deleteGroup() {
    if(selected != null) {
      getDao().deleteObject(selected);
      selected = null;
    }
  }
  
  @Command
  public void addWord() {
    if(selected != null) {
      InputDialog.getInput(Framework.getCurrent().getPage(), 
              I_.get("Synonyms"), "Word",
              "", null, 0, (Context context) -> {
        String value = (String) context.get("value");
        if(!Strings.isBlank(value)) {
          selected.getWords().add(value);
          selected = getDao().saveObject(selected);
          BindUtils.postNotifyChange(null,  null, SynonymsVM.this, "model");
          BindUtils.postNotifyChange(null,  null, SynonymsVM.this, "wordModel");
        }
        return null;
      });
    }    
  }
  
  @Command
  @NotifyChange({"wordModel", "model"})
  public void deleteWord(@BindingParam("word") String word) {
    if(selected != null) {
      if(selected.getWords().remove(word)) {
        if(selected.isEmpty()) {
          getDao().deleteObject(selected);
          selected = null;
        } else {
          selected = getDao().saveObject(selected);
        }
      }
    }    
  }
  
  @Command
  @NotifyChange({"wordModel", "model"})
  public void selectSynonyms(@BindingParam("selected") Synonyms selected) {
    this.selected = selected;
  }
  
  public Set<String> getWordModel() {
    if(selected == null) return null;
    return selected.getWords();
  }
  
  public List<Synonyms> getModel() {
    if(!Strings.isBlank(searchValue)) {
      return Synonyms.getSynonyms(searchValue, 0);
    } else {
      return getDao().getResultList("select s from Synonyms s");
    }
  }
  
  /* Dao */
  
  private Dao _dao;
  
  private Dao getDao() {
    if(_dao == null) {
      _dao = new ElephantPU(); 
    }
    return _dao;
  }
  
}