/**

  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.

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  * Copyright 2013-2014 Oracle and/or its affiliates. All rights reserved.

  *

  * Oracle and Java are registered trademarks of Oracle and/or its affiliates.

  * Other names may be trademarks of their respective owners.

  *

  * The contents of this file are subject to the terms of either the GNU

  * General Public License Version 2 only ("GPL") or the Common

  * Development and Distribution License("CDDL") (collectively, the

  * "License"). You may not use this file except in compliance with the

  * License. You can obtain a copy of the License at

  * http://www.netbeans.org/cddl-gplv2.html

  * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the

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  * particular file as subject to the "Classpath" exception as provided

  * by Oracle in the GPL Version 2 section of the License file that

  * accompanied this code. If applicable, add the following below the

  * License Header, with the fields enclosed by brackets [] replaced by

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  *

  * Contributor(s):

  *

  * The Original Software is NetBeans. The Initial Developer of the Original

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 package org.netbeans.html.json.impl;

 import java.io.IOException;

 import java.io.InputStream;

 import java.lang.reflect.InvocationTargetException;

 import java.util.HashMap;

 import java.util.List;

 import java.util.Map;

 import net.java.html.BrwsrCtx;

 import net.java.html.json.ComputedProperty;

 import net.java.html.json.Model;

 import net.java.html.json.Models;

 import net.java.html.json.Property;

 import org.apidesign.html.context.spi.Contexts;

 import org.apidesign.html.json.spi.FunctionBinding;

 import org.apidesign.html.json.spi.JSONCall;

 import org.apidesign.html.json.spi.PropertyBinding;

 import org.apidesign.html.json.spi.Technology;

 import org.apidesign.html.json.spi.Transfer;

 import static org.testng.Assert.*;

 import org.testng.annotations.BeforeMethod;

 import org.testng.annotations.Test;

 /**

  *

  * @author Jaroslav Tulach

  */

 public class DeepChangeTest {

     private MapTechnology t;

     private BrwsrCtx c;

     @BeforeMethod public void initTechnology() {

         t = new MapTechnology();

         c = Contexts.newBuilder().register(Technology.class, t, 1).

             register(Transfer.class, t, 1).build();

     }

     @Model(className = "MyX", properties = {

         @Property(name = "one", type = MyY.class),

         @Property(name = "all", type = MyY.class, array = true)

     })

     static class X {

         @ComputedProperty @Transitive(deep = true) 

         static String oneName(MyY one) {

             return one.getValue();

         }

         @ComputedProperty

         static String sndName(MyY one) {

             return one.getValue().toUpperCase();

         }

         @ComputedProperty @Transitive(deep = false) 

         static String noName(MyY one) {

             return one.getValue().toUpperCase();

         }

         @ComputedProperty @Transitive(deep = true) 

         static String thrdName(MyY one) {

             return "X" + one.getCount();

         }

         @ComputedProperty

         static String allNames(List<MyY> all) {

             StringBuilder sb = new StringBuilder();

             for (MyY y : all) {

                 sb.append(y.getValue());

             }

             return sb.toString();

         }

         @ComputedProperty @Transitive(deep = true)

         static String firstFromNames(List<MyY> all) {

             for (MyY y : all) {

                 if (y != null && y.getValue() != null) {

                     return y.getValue();

                 }

             }

             return null;

         }

     }

     @Model(className = "MyY", properties = {

         @Property(name = "value", type = String.class),

         @Property(name = "count", type = int.class)

     })

     static class Y {

     }

     @Model(className = "MyOverall", properties = {

         @Property(name = "x", type = MyX.class)

     })

     static class Overall {

         @ComputedProperty @Transitive(deep = true) 

         static String valueAccross(MyX x) {

             return x.getFirstFromNames();

         }

     }

     @Test public void isTransitiveChangeNotifiedProperly() throws Exception {

         MyX p = Models.bind(

             new MyX(new MyY("Ahoj", 0), new MyY("Hi", 333), new MyY("Hello", 999)

         ), c).applyBindings();

         Map m = (Map)Models.toRaw(p);

         Object v = m.get("oneName");

         assertNotNull(v, "Value should be in the map");

         assertEquals(v.getClass(), One.class, "It is instance of One");

         One o = (One)v;

         assertEquals(o.changes, 0, "No changes so far");

         assertTrue(o.pb.isReadOnly(), "Derived property");

         assertEquals(o.get(), "Ahoj");

         p.getOne().setValue("Nazdar");

         assertEquals(o.get(), "Nazdar");

         assertEquals(o.changes, 1, "One change so far");

     }

     @Test public void isTransitiveChangeInArrayNotifiedProperly() throws Exception {

         MyX p = Models.bind(

             new MyX(new MyY("Ahoj", 0), new MyY("Hi", 333), new MyY("Hello", 999)

         ), c).applyBindings();

         Map m = (Map)Models.toRaw(p);

         Object v = m.get("allNames");

         assertNotNull(v, "Value should be in the map");

         assertEquals(v.getClass(), One.class, "It is instance of One");

         One o = (One)v;

         assertEquals(o.changes, 0, "No changes so far");

         assertTrue(o.pb.isReadOnly(), "Derived property");

         assertEquals(o.get(), "HiHello");

         p.getAll().get(0).setValue("Nazdar");

         assertEquals(o.get(), "NazdarHello");

         assertEquals(o.changes, 1, "One change so far");

     }

     @Test public void addingIntoArray() throws Exception {

         MyX p = Models.bind(

             new MyX(new MyY("Ahoj", 0), new MyY("Hi", 333), new MyY("Hello", 999)

         ), c).applyBindings();

         Map m = (Map)Models.toRaw(p);

         Object v = m.get("allNames");

         assertNotNull(v, "Value should be in the map");

         assertEquals(v.getClass(), One.class, "It is instance of One");

         One o = (One)v;

         assertEquals(o.changes, 0, "No changes so far");

         assertTrue(o.pb.isReadOnly(), "Derived property");

         assertEquals(o.get(), "HiHello");

         MyY y = new MyY("Cus", 1);

         p.getAll().add(y);

         assertEquals(o.changes, 1, "One change so far");

         assertEquals(o.get(), "HiHelloCus");

         y.setValue("Nazdar");

         assertEquals(o.changes, 2, "2nd change so far");

         assertEquals(o.get(), "HiHelloNazdar");

         y.setValue("Zdravim");

         assertEquals(o.changes, 3, "3rd change so far");

         assertEquals(o.get(), "HiHelloZdravim");

     }

     @Test public void firstChangeInArrayNotifiedProperly() throws Exception {

         MyX p = Models.bind(

             new MyX(new MyY("Ahoj", 0), new MyY("Hi", 333), new MyY("Hello", 999)

         ), c).applyBindings();

         Map m = (Map)Models.toRaw(p);

         Object v = m.get("firstFromNames");

         assertNotNull(v, "Value should be in the map");

         assertEquals(v.getClass(), One.class, "It is instance of One");

         One o = (One)v;

         assertEquals(o.changes, 0, "No changes so far");

         assertTrue(o.pb.isReadOnly(), "Derived property");

         assertEquals(o.get(), "Hi");

         p.getAll().get(0).setValue("Nazdar");

         assertEquals(o.get(), "Nazdar");

         assertEquals(o.changes, 1, "One change so far");

     }

     @Test public void firstChangeInArrayToNull() throws Exception {

         MyX p = Models.bind(

             new MyX(new MyY("Ahoj", 0), new MyY("Hi", 333), new MyY("Hello", 999)

         ), c).applyBindings();

         Map m = (Map)Models.toRaw(p);

         Object v = m.get("firstFromNames");

         assertNotNull(v, "Value should be in the map");

         assertEquals(v.getClass(), One.class, "It is instance of One");

         One o = (One)v;

         assertEquals(o.changes, 0, "No changes so far");

         assertTrue(o.pb.isReadOnly(), "Derived property");

         assertEquals(o.get(), "Hi");

         p.getAll().get(0).setValue(null);

         assertEquals(o.get(), "Hello");

         assertEquals(o.changes, 1, "One change so far");

         p.getAll().get(0).setValue("Nazdar");

         assertEquals(o.get(), "Nazdar");

         assertEquals(o.changes, 2, "2nd change so far");

     }

     @Test public void firstChangeInArrayNotifiedTransitively() throws Exception {

         MyOverall p = Models.bind(

             new MyOverall(new MyX(new MyY("Ahoj", 0), new MyY("Hi", 333), new MyY("Hello", 999))

         ), c).applyBindings();

         Map m = (Map)Models.toRaw(p);

         Object v = m.get("valueAccross");

         assertNotNull(v, "Value should be in the map");

         assertEquals(v.getClass(), One.class, "It is instance of One");

         One o = (One)v;

         assertEquals(o.changes, 0, "No changes so far");

         assertTrue(o.pb.isReadOnly(), "Derived property");

         assertEquals(o.get(), "Hi");

         p.getX().getAll().get(0).setValue("Nazdar");

         assertEquals(o.get(), "Nazdar");

         assertEquals(o.changes, 1, "One change so far");

     }

     @Test public void secondChangeInArrayIgnored() throws Exception {

         MyX p = Models.bind(

             new MyX(new MyY("Ahoj", 0), new MyY("Hi", 333), new MyY("Hello", 999)

         ), c).applyBindings();

         Map m = (Map)Models.toRaw(p);

         Object v = m.get("firstFromNames");

         assertNotNull(v, "Value should be in the map");

         assertEquals(v.getClass(), One.class, "It is instance of One");

         One o = (One)v;

         assertEquals(o.changes, 0, "No changes so far");

         assertTrue(o.pb.isReadOnly(), "Derived property");

         assertEquals(o.get(), "Hi");

         p.getAll().get(1).setValue("Nazdar");

         assertEquals(o.get(), "Hi");

         assertEquals(o.changes, 0, "No change so far");

     }

     @Test public void changeInArraySizeNeedsToBeRecomputed() throws Exception {

         MyX p = Models.bind(

             new MyX(new MyY("Ahoj", 0), new MyY("Hi", 333), new MyY("Hello", 999)

         ), c).applyBindings();

         Map m = (Map)Models.toRaw(p);

         Object v = m.get("firstFromNames");

         assertNotNull(v, "Value should be in the map");

         assertEquals(v.getClass(), One.class, "It is instance of One");

         One o = (One)v;

         assertEquals(o.changes, 0, "No changes so far");

         assertTrue(o.pb.isReadOnly(), "Derived property");

         assertEquals(o.get(), "Hi");

         p.getAll().remove(1);

         assertEquals(o.get(), "Hi");

         assertEquals(o.changes, 1, "This required a change");

     }

     @Test public void doublePropertyChangeNotified() throws Exception {

         MyX p = Models.bind(

             new MyX(new MyY("Ahoj", 0), new MyY("Hi", 333), new MyY("Hello", 999)

         ), c).applyBindings();

         Map m = (Map)Models.toRaw(p);

         Object v = m.get("oneName");

         assertNotNull(v, "Value should be in the map");

         Object v2 = m.get("sndName");

         assertNotNull(v2, "Value2 should be in the map");

         One o = (One)v;

         One o2 = (One)v2;

         assertEquals(o.changes, 0, "No changes so far");

         assertEquals(o2.changes, 0, "No changes so far");

         assertTrue(o.pb.isReadOnly(), "Derived property");

         assertEquals(o.get(), "Ahoj");

         assertEquals(o2.get(), "AHOJ");

         p.getOne().setValue("Nazdar");

         assertEquals(o.get(), "Nazdar");

         assertEquals(o.changes, 1, "One change so far");

         assertEquals(o2.changes, 1, "One change so far");

         assertEquals(o2.get(), "NAZDAR");

     }

     @Test public void onlyAffectedPropertyChangeNotified() throws Exception {

         MyX p = Models.bind(

             new MyX(new MyY("Ahoj", 0), new MyY("Hi", 333), new MyY("Hello", 999)

         ), c).applyBindings();

         Map m = (Map)Models.toRaw(p);

         Object v = m.get("oneName");

         assertNotNull(v, "Value should be in the map");

         Object v2 = m.get("thrdName");

         assertNotNull(v2, "Value2 should be in the map");

         One o = (One)v;

         One o2 = (One)v2;

         assertEquals(o.changes, 0, "No changes so far");

         assertEquals(o2.changes, 0, "No changes so far");

         assertTrue(o.pb.isReadOnly(), "Derived property");

         assertEquals(o.get(), "Ahoj");

         assertEquals(o2.get(), "X0");

         p.getOne().setCount(10);

         assertEquals(o.get(), "Ahoj");

         assertEquals(o.changes, 0, "Still no change");

         assertEquals(o2.changes, 1, "One change so far");

         assertEquals(o2.get(), "X10");

     }

     @Test public void onlyDeepPropsAreNotified() throws Exception {

         MyX p = Models.bind(

             new MyX(new MyY("Ahoj", 0), new MyY("Hi", 333), new MyY("Hello", 999)

         ), c).applyBindings();

         Map m = (Map)Models.toRaw(p);

         Object v = m.get("oneName");

         assertNotNull(v, "Value should be in the map");

         Object v2 = m.get("noName");

         assertNotNull(v2, "Value2 should be in the map");

         One o = (One)v;

         One o2 = (One)v2;

         assertEquals(o.changes, 0, "No changes so far");

         assertEquals(o2.changes, 0, "No changes so far");

         assertTrue(o.pb.isReadOnly(), "Derived property");

         assertEquals(o.get(), "Ahoj");

         assertEquals(o2.get(), "AHOJ");

         p.getOne().setValue("Nazdar");

         assertEquals(o.get(), "Nazdar");

         assertEquals(o.changes, 1, "One change so far");

         assertEquals(o2.changes, 0, "This change is not noticed");

         assertEquals(o2.get(), "NAZDAR", "but property value changes when computed");

     }

     static final class One {

         int changes;

         final PropertyBinding pb;

         final FunctionBinding fb;

         One(Object m, PropertyBinding pb) throws NoSuchMethodException {

             this.pb = pb;

             this.fb = null;

         }

         One(Object m, FunctionBinding fb) throws NoSuchMethodException {

             this.pb = null;

             this.fb = fb;

         }

         Object get() throws IllegalAccessException, IllegalArgumentException, InvocationTargetException {

             return pb.getValue();

         }

         void set(Object v) throws IllegalAccessException, IllegalArgumentException, InvocationTargetException {

             pb.setValue(v);

         }

     }

     static final class MapTechnology

             implements Technology<Map<String, One>>, Transfer {

         @Override

         public Map<String, One> wrapModel(Object model) {

             return new HashMap<String, One>();

         }

         @Override

         public void valueHasMutated(Map<String, One> data, String propertyName) {

             One p = data.get(propertyName);

             if (p != null) {

                 p.changes++;

             }

         }

         @Override

         public void bind(PropertyBinding b, Object model, Map<String, One> data) {

             try {

                 One o = new One(model, b);

                 data.put(b.getPropertyName(), o);

             } catch (NoSuchMethodException ex) {

                 throw new IllegalStateException(ex);

             }

         }

         @Override

         public void expose(FunctionBinding fb, Object model, Map<String, One> data) {

             try {

                 data.put(fb.getFunctionName(), new One(model, fb));

             } catch (NoSuchMethodException ex) {

                 throw new IllegalStateException(ex);

             }

         }

         @Override

         public void applyBindings(Map<String, One> data) {

         }

         @Override

         public Object wrapArray(Object[] arr) {

             return arr;

         }

         @Override

         public void extract(Object obj, String[] props, Object[] values) {

             Map<?, ?> map = obj instanceof Map ? (Map<?, ?>) obj : null;

             for (int i = 0; i < Math.min(props.length, values.length); i++) {

                 if (map == null) {

                     values[i] = null;

                 } else {

                     values[i] = map.get(props[i]);

                     if (values[i] instanceof One) {

                         values[i] = ((One) values[i]).pb.getValue();

                     }

                 }

             }

         }

         @Override

         public void loadJSON(JSONCall call) {

             call.notifyError(new UnsupportedOperationException());

         }

         @Override

         public <M> M toModel(Class<M> modelClass, Object data) {

             return modelClass.cast(data);

         }

         @Override

         public Object toJSON(InputStream is) throws IOException {

             throw new IOException();

         }

         @Override

         public void runSafe(Runnable r) {

             throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.

         }

     }

 }