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package org.nuiton.jaxx.widgets.datetime;

/*
 * #%L
 * JAXX :: Widgets
 * %%
 * Copyright (C) 2008 - 2024 Code Lutin, Ultreia.io
 * %%
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser 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 General Lesser Public License for more details.
 *
 * You should have received a copy of the GNU General Lesser Public
 * License along with this program.  If not, see
 * .
 * #L%
 */

import com.google.common.base.Preconditions;
import io.ultreia.java4all.bean.AbstractJavaBean;
import org.nuiton.jaxx.widgets.ModelToBean;

import java.util.function.Predicate;

/**
 * Created on 11/30/14.
 *
 * @author Tony Chemit - [email protected]
 * @since 2.18
 */
public class UnlimitedTimeEditorModel extends AbstractJavaBean implements ModelToBean {

    public static final String PROPERTY_TIME = "time";
    public static final String PROPERTY_HOURS = "hours";
    public static final String PROPERTY_MINUTES = "minutes";
    public static final String PROPERTY_VALUE_IS_ADJUSTING = "valueIsAdjusting";
    /**
     * State to be able to custom the model. will be pass to {@code false} by the {@code DateTimeEditorHandler#init(DateTimeEditor)}.
     */
    protected final boolean fillState = true;
    /**
     * Optional bean where to push back dates.
     */
    protected Object bean;
    /**
     * Optional bean property where to push back the time date.
     */
    protected String propertyTime;
    /**
     * Time in minutes.
     */
    protected Integer time = null;
    /**
     * To stop propagate events when we are doing some modifications on the model.
     */
    protected boolean valueIsAdjusting;

    public String getPropertyTime() {
        return propertyTime;
    }

    public void setPropertyTime(String propertyTime) {
        Preconditions.checkState(fillState, "cant change *propertyTimeDate* property once the fillState is off.");
        this.propertyTime = propertyTime;
    }

    @Override
    public Object getBean() {
        return bean;
    }

    public void setBean(Object bean) {
        Preconditions.checkState(fillState, "cant change *bean* property once the fillState is off.");
        this.bean = bean;
    }

    public Integer getTime() {
        return time;
    }

    public void setTime(Integer time) {
        if (!isValueIsAdjusting()) {
            Integer oldHours = getHours();
            Integer oldMinutes = getMinutes();
            setTime(getHours(time), getMinutes(time));
            firePropertyChange(PROPERTY_HOURS, oldHours, getHours());
            firePropertyChange(PROPERTY_MINUTES, oldMinutes, getMinutes());
        }
    }

    public int getHours() {
        return getHours(time);
    }

    public void setHours(Integer hour) {
        if (!isValueIsAdjusting()) {
            Integer oldValue = getHours();
            setTime(hour, getMinutes());
            firePropertyChange(PROPERTY_HOURS, oldValue, hour);

        }
    }

    public int getMinutes() {
        return getMinutes(time);
    }

    public void setMinutes(Integer minutes) {
        if (!isValueIsAdjusting()) {
            Integer oldValue = getMinutes();
            setTime(getHours(), minutes);
            firePropertyChange(PROPERTY_MINUTES, oldValue, minutes);
        }
    }

    public boolean isValueIsAdjusting() {
        return valueIsAdjusting;
    }

    public void setValueIsAdjusting(boolean valueIsAdjusting) {
        boolean oldValue = isValueIsAdjusting();
        this.valueIsAdjusting = valueIsAdjusting;
        fireValueIsAdjusting(oldValue);
    }

    public int getHours(Integer time) {
        return time == null ? 0 : time / 60;
    }

    public int getMinutes(Integer time) {
        return time == null ? 0 : time % 60;
    }

    protected void setTime(Integer hour, Integer minute) {
        Integer oldTime = getTime();
        setValueIsAdjusting(true);
        try {
            if (hour == null || minute == null) {
                this.time = null;
            } else {
                this.time = hour * 60 + minute;
            }
        } finally {
            setValueIsAdjusting(false);
            fireTime(oldTime);
        }
    }

    protected void fireTime(Integer oldTime) {
        firePropertyChange(PROPERTY_TIME, oldTime, getTime());
    }

    protected void fireValueIsAdjusting(boolean oldValue) {
        firePropertyChange(PROPERTY_VALUE_IS_ADJUSTING, oldValue, isValueIsAdjusting());
    }

    protected Predicate canUpdateBeanValuePredicate() {
        return input -> !isValueIsAdjusting();
    }
}