/*
 * The MIT License
 *
 * Copyright 2015 DamienD.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
package fr.damiendev.bindings.properties;

import fr.damiendev.bindings.utils.BindingEvent;
import fr.damiendev.bindings.utils.Observable;
import fr.damiendev.bindings.utils.Observer;
import fr.damiendev.bindings.utils.Property;

/**
 *
 * @author DamienD
 */
public class BooleanProperty extends Properties implements Observable, Observer, Property {

    private boolean oldValue, value;

    public BooleanProperty() {
        oldValue = !value;
    }
    
    

    public BooleanProperty(String propertyName, boolean value) {
        oldValue = !value;
        this.value = value;
        this.propertyName = propertyName;
    }

    public BooleanProperty(boolean value) {
        oldValue = !value;
        this.value = value;
        this.propertyName = String.valueOf(this.hashCode());
    }

    /**
     * Renvoi la valeur du Property
     *
     * @return
     */
    public boolean getValue() {
        return value;
    }

    /**
     * Modifie la valeur du property et notifie les observateurs
     *
     * @param value La nouvelle valeur
     */
    public void setValue(boolean value) {
        changed = false;
        this.oldValue = this.value;
        this.value = value;
        if (oldValue != value) {
            this.notifyObservers(this.propertyName);
            changed = true;
        }
    }

    @Override
    public void notifyObservers(String propertyName) {
        for(Observer o : observers) {
            o.update(new BindingEvent(propertyName, oldValue, value));
        }
    }

    @Override
    public String toString() {
        return (value ? "true" : "false");
    }
    
    @Override
    public void update(BindingEvent event) {
            this.setValue((boolean) event.getNewValue());
    }
}
