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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code 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 Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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package com.sun.javafx.scene.control.infrastructure;

import javafx.beans.InvalidationListener;
import javafx.beans.value.ObservableValue;
import javafx.collections.ListChangeListener;
import javafx.collections.ObservableList;
import javafx.css.PseudoClass;
import javafx.scene.chart.Axis;
import javafx.scene.control.Control;
import javafx.scene.control.MenuItem;
import javafx.scene.control.Pagination;
import javafx.scene.control.PopupControl;
import javafx.scene.control.Tab;
import java.lang.reflect.Field;
import java.util.ArrayList;
import java.util.List;
import java.util.Set;
import com.sun.javafx.binding.ExpressionHelperUtility;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;

public final class ControlTestUtils {
    private ControlTestUtils() { }
    /*********************************************************************
     * Following 2 methods are for Tab                                   *
     ********************************************************************/
    public static void assertStyleClassContains(Tab tab, String styleClass) {
        assertStyleClassContains(
                "The style class " + styleClass + " was not set on the Tab " + tab,
                tab, styleClass);
    }
    
    public static void assertStyleClassContains(String message, Tab tab, String styleClass) {
        assertTrue(message, tab.getStyleClass().contains(styleClass));
    }
    
    /*********************************************************************
     * Following 2 methods are for MenuItem                                   *
     ********************************************************************/
    public static void assertStyleClassContains(MenuItem mi, String styleClass) {
        assertStyleClassContains(
                "The style class " + styleClass + " was not set on the MenuItem " + mi,
                mi, styleClass);
    }
    
    public static void assertStyleClassContains(String message, MenuItem mi, String styleClass) {
        assertTrue(message, mi.getStyleClass().contains(styleClass));
    }
    
    /*********************************************************************
     * Following 2 methods are for Popup controls like Tooltip etc       *
     ********************************************************************/
    public static void assertStyleClassContains(PopupControl control, String styleClass) {
        assertStyleClassContains(
                "The style class " + styleClass + " was not set on the Popupcontrol " + control,
                control, styleClass);
    }
    
    public static void assertStyleClassContains(String message, PopupControl control, String styleClass) {
        assertTrue(message, control.getStyleClass().contains(styleClass));
    }
    
    /****************************************************************************
     * Following 2 methods are for normal controls like Button, TextField etc   *
     ****************************************************************************/
    public static void assertStyleClassContains(Control control, String styleClass) {
        assertStyleClassContains(
                "The style class " + styleClass + " was not set on the control " + control,
                control, styleClass);
    }
    
    public static void assertStyleClassContains(String message, Control control, String styleClass) {
        assertTrue(message, control.getStyleClass().contains(styleClass));
    }
    
    /****************************************************************************
     * Following 4 methods are for normal controls like Button, TextField etc   *
     ****************************************************************************/
    public static void assertPseudoClassExists(Control control, String pseudoClass) {
        assertPseudoClassExists(
                "The pseudo class " + pseudoClass + " was not set on control " + control,
                control, pseudoClass);
    }
    
    public static void assertPseudoClassExists(String message, Control control, String pseudoClass) {
        Set<PseudoClass> allStates = control.getPseudoClassStates();
        PseudoClass state = PseudoClass.getPseudoClass(pseudoClass);
        assertTrue(message, allStates.contains(state));
    }
    
    public static void assertPseudoClassDoesNotExist(Control control, String pseudoClass) {
        assertPseudoClassDoesNotExist(
                "The pseudo class " + pseudoClass + " was unexpectedly set on control " + control,
                control, pseudoClass);
    }

    public static void assertPseudoClassDoesNotExist(String message, Control control, String pseudoClass) {
        Set<PseudoClass> allStates = control.getPseudoClassStates();
        PseudoClass state = PseudoClass.getPseudoClass(pseudoClass);
        assertFalse(message, allStates.contains(state));
    }    

    /****************************************************************************
     * Following 4 methods are for axis type like ValueAxis, NumberAxis, CategoryAxis etc*
     ****************************************************************************/
    public static void assertPseudoClassExists(Axis axis, String pseudoClass) {
        assertPseudoClassExists(
                "The pseudo class " + pseudoClass + " was not set on axis " + axis,
                axis, pseudoClass);
    }
    
    public static void assertPseudoClassExists(String message, Axis axis, String pseudoClass) {
        Set<PseudoClass> allStates = axis.getPseudoClassStates();
        PseudoClass state = PseudoClass.getPseudoClass(pseudoClass);
        assertTrue(message, allStates.contains(state));
    }
    
    public static void assertPseudoClassDoesNotExist(Axis axis, String pseudoClass) {
        assertPseudoClassDoesNotExist(
                "The pseudo class " + pseudoClass + " was unexpectedly set on axis " + axis,
                axis, pseudoClass);
    }

    public static void assertPseudoClassDoesNotExist(String message, Axis axis, String pseudoClass) {
        Set<PseudoClass> allStates = axis.getPseudoClassStates();
        PseudoClass state = PseudoClass.getPseudoClass(pseudoClass);
        assertFalse(message, allStates.contains(state));
    }    
    
    /*********************************************************************
     * Following 2 methods are for the Pagination controls               *
     ********************************************************************/
    public static void assertStyleClassContains(Pagination control, String styleClass) {
        assertStyleClassContains(
                "The style class " + styleClass + " was not set on the Pagination " + control,
                control, styleClass);
    }
    
    public static void assertStyleClassContains(String message, Pagination control, String styleClass) {
        assertTrue(message, control.getStyleClass().contains(styleClass));
    }
    
    public static void assertListenerListContains(ObservableList list, ListChangeListener listener) {
        assertListenerListContains("The listener " + listener + " was not contained in " + list, list, listener);
    }

    public static void assertListenerListContains(String message, ObservableList list, ListChangeListener listener) {
//        ListenerList listeners = getListenerList(list);
//        assertTrue(message, listeners != null && listeners.contains(listener));
    }

    public static void assertListenerListDoesNotContain(ObservableList list, ListChangeListener listener) {
        assertListenerListDoesNotContain("The listener " + listener + " was contained in " + list, list, listener);
    }

    public static void assertListenerListDoesNotContain(String message, ObservableList list, ListChangeListener listener) {
//        ListenerList listeners = getListenerList(list);
//        assertTrue(message, listeners == null || !listeners.contains(listener));
    }

    public static ListChangeListener getListChangeListener(Object bean, String fieldName) {
        return (ListChangeListener) getListener(bean, fieldName);
    }

    public static void assertValueListenersContains(ObservableValue value, InvalidationListener listener) {
        assertValueListenersContains("The listener " + listener + " was not contained in " + value, value, listener);
    }

    public static void assertValueListenersContains(String message, ObservableValue value, InvalidationListener listener) {
        List listeners = getObservableValueListeners(value);
        assertTrue(message, listeners != null && listeners.contains(listener));
    }

    public static void assertValueListenersDoesNotContain(ObservableValue value, InvalidationListener listener) {
        assertValueListenersDoesNotContain("The listener " + listener + " was contained in " + value, value, listener);
    }

    public static void assertValueListenersDoesNotContain(String message, ObservableValue value, InvalidationListener listener) {
        List listeners = getObservableValueListeners(value);
        assertTrue(message, listeners == null || !listeners.contains(listener));
    }

    public static int getListenerCount(ObservableValue value) {
        return getObservableValueListeners(value).size();
    }

    public static InvalidationListener getInvalidationListener(Object bean, String fieldName) {
        return (InvalidationListener) getListener(bean, fieldName);
    }

    private static Object getListener(Object bean, String fieldName) {
        try {
            Class clazz = bean.getClass();
            Field field = clazz.getDeclaredField(fieldName);
            field.setAccessible(true);
            return field.get(bean);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }

    private static List getObservableValueListeners(ObservableValue value) {
        ArrayList results = new ArrayList();
        results.addAll(ExpressionHelperUtility.getChangeListeners(value));
        results.addAll(ExpressionHelperUtility.getInvalidationListeners(value));
        return results;
    }

    // methods for temporary setting UncaughtExceptionHandler
    public static Thread.UncaughtExceptionHandler setHandler() {
        Thread.UncaughtExceptionHandler exceptionHandler = Thread.currentThread().getUncaughtExceptionHandler();
        Thread.currentThread().setUncaughtExceptionHandler((Thread t, Throwable e) -> {
            e.printStackTrace();
            throw new AssertionError(e);
        });
        return exceptionHandler;
    }

    // the test should call this method in the finally block to ensure
    // that the handler is reset
    public static void resetHandler(Thread.UncaughtExceptionHandler exceptionHandler) {
        Thread.currentThread().setUncaughtExceptionHandler(exceptionHandler);
    }
}