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 package net.java.html.json.tests;

 import java.util.List;

 import net.java.html.BrwsrCtx;

 import net.java.html.json.ComputedProperty;

 import net.java.html.json.Function;

 import net.java.html.json.Model;

 import net.java.html.json.Models;

 import net.java.html.json.Property;

 import org.apidesign.html.json.tck.KOTest;

 import org.apidesign.html.json.tck.KnockoutTCK;

 /**

  *

  * @author Jaroslav Tulach <jtulach@netbeans.org>

  */

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

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

     @Property(name="results", type=String.class, array = true),

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

     @Property(name="people", type=PersonImpl.class, array = true),

     @Property(name="enabled", type=boolean.class),

     @Property(name="latitude", type=double.class)

 }) 

 public final class KnockoutTest {

     @KOTest public void modifyValueAssertChangeInModelOnDouble() throws Throwable {

         Object exp = Utils.exposeHTML(KnockoutTest.class, 

             "Latitude: <input id='input' data-bind=\"value: latitude\"></input>\n"

         );

         try {

             KnockoutModel m = Models.bind(new KnockoutModel(), newContext());

             m.setLatitude(50.5);

             m.applyBindings();

             String v = getSetInput(null);

             assert "50.5".equals(v) : "Value is really 50.5: " + v;

             getSetInput("49.5");

             triggerEvent("input", "change");

             assert 49.5 == m.getLatitude() : "Double property updated: " + m.getLatitude();

         } catch (Throwable t) {

             throw t;

         } finally {

             Utils.exposeHTML(KnockoutTest.class, "");

         }

     }

     @KOTest public void modifyValueAssertChangeInModelOnBoolean() throws Throwable {

         Object exp = Utils.exposeHTML(KnockoutTest.class, 

             "Latitude: <input id='input' data-bind=\"value: enabled\"></input>\n"

         );

         try {

             KnockoutModel m = Models.bind(new KnockoutModel(), newContext());

             m.setEnabled(true);

             m.applyBindings();

             String v = getSetInput(null);

             assert "true".equals(v) : "Value is really true: " + v;

             getSetInput("false");

             triggerEvent("input", "change");

             assert false == m.isEnabled(): "Boolean property updated: " + m.isEnabled();

         } catch (Throwable t) {

             throw t;

         } finally {

             Utils.exposeHTML(KnockoutTest.class, "");

         }

     }

     @KOTest public void modifyValueAssertChangeInModel() throws Exception {

         Object exp = Utils.exposeHTML(KnockoutTest.class, 

             "<h1 data-bind=\"text: helloMessage\">Loading Bck2Brwsr's Hello World...</h1>\n" +

             "Your name: <input id='input' data-bind=\"value: name\"></input>\n" +

             "<button id=\"hello\">Say Hello!</button>\n"

         );

         try {

             KnockoutModel m = Models.bind(new KnockoutModel(), newContext());

             m.setName("Kukuc");

             m.applyBindings();

             String v = getSetInput(null);

             assert "Kukuc".equals(v) : "Value is really kukuc: " + v;

             getSetInput("Jardo");

             triggerEvent("input", "change");

             assert "Jardo".equals(m.getName()) : "Name property updated: " + m.getName();

         } finally {

             Utils.exposeHTML(KnockoutTest.class, "");

         }

     }

     private static String getSetInput(String value) throws Exception {

         String s = "var value = arguments[0];\n"

         + "var n = window.document.getElementById('input'); \n "

         + "if (value != null) n['value'] = value; \n "

         + "return n['value'];";

         return (String)Utils.executeScript(

             KnockoutTest.class,

             s, value

         );

     }

     public static void triggerEvent(String id, String ev) throws Exception {

         Utils.executeScript(

             KnockoutTest.class,

             "ko.utils.triggerEvent(window.document.getElementById(arguments[0]), arguments[1]);",

             id, ev

         );

     }

     @KOTest public void displayContentOfArray() throws Exception {

         Object exp = Utils.exposeHTML(KnockoutTest.class, 

             "<ul id='ul' data-bind='foreach: results'>\n"

             + "  <li data-bind='text: $data, click: $root.call'/>\n"

             + "</ul>\n"

         );

         try {

             KnockoutModel m = Models.bind(new KnockoutModel(), newContext());

             m.getResults().add("Ahoj");

             m.applyBindings();

             int cnt = countChildren("ul");

             assert cnt == 1 : "One child, but was " + cnt;

             m.getResults().add("Hi");

             cnt = countChildren("ul");

             assert cnt == 2 : "Two children now, but was " + cnt;

             triggerChildClick("ul", 1);

             assert 1 == m.getCallbackCount() : "One callback " + m.getCallbackCount();

             assert "Hi".equals(m.getName()) : "We got callback from 2nd child " + m.getName();

         } finally {

             Utils.exposeHTML(KnockoutTest.class, "");

         }

     }

     @KOTest public void displayContentOfComputedArray() throws Exception {

         Object exp = Utils.exposeHTML(KnockoutTest.class, 

             "<ul id='ul' data-bind='foreach: bothNames'>\n"

             + "  <li data-bind='text: $data, click: $root.assignFirstName'/>\n"

             + "</ul>\n"

         );

         try {

             Pair m = Models.bind(new Pair("First", "Last", null), newContext());

             m.applyBindings();

             int cnt = countChildren("ul");

             assert cnt == 2 : "Two children now, but was " + cnt;

             triggerChildClick("ul", 1);

             assert "Last".equals(m.getFirstName()) : "We got callback from 2nd child " + m.getFirstName();

         } finally {

             Utils.exposeHTML(KnockoutTest.class, "");

         }

     }

     @KOTest public void displayContentOfComputedArrayOnASubpair() throws Exception {

         Object exp = Utils.exposeHTML(KnockoutTest.class, 

               "<div data-bind='with: next'>\n"

             + "<ul id='ul' data-bind='foreach: bothNames'>\n"

             + "  <li data-bind='text: $data, click: $root.assignFirstName'/>\n"

             + "</ul>"

             + "</div>\n"

         );

         try {

             Pair m = Models.bind(new Pair(null, null, new Pair("First", "Last", null)), newContext());

             m.applyBindings();

             int cnt = countChildren("ul");

             assert cnt == 2 : "Two children now, but was " + cnt;

             triggerChildClick("ul", 1);

             assert "Last".equals(m.getFirstName()) : "We got callback from 2nd child " + m.getFirstName();

         } finally {

             Utils.exposeHTML(KnockoutTest.class, "");

         }

     }

     @KOTest public void displayContentOfComputedArrayOnComputedASubpair() throws Exception {

         Object exp = Utils.exposeHTML(KnockoutTest.class, 

               "<div data-bind='with: nextOne'>\n"

             + "<ul id='ul' data-bind='foreach: bothNames'>\n"

             + "  <li data-bind='text: $data, click: $root.assignFirstName'/>\n"

             + "</ul>"

             + "</div>\n"

         );

         try {

             Pair m = Models.bind(new Pair(null, null, new Pair("First", "Last", null)), newContext());

             m.applyBindings();

             int cnt = countChildren("ul");

             assert cnt == 2 : "Two children now, but was " + cnt;

             triggerChildClick("ul", 1);

             assert "Last".equals(m.getFirstName()) : "We got callback from 2nd child " + m.getFirstName();

         } finally {

             Utils.exposeHTML(KnockoutTest.class, "");

         }

     }

     @KOTest public void checkBoxToBooleanBinding() throws Exception {

         Object exp = Utils.exposeHTML(KnockoutTest.class, 

             "<input type='checkbox' id='b' data-bind='checked: enabled'></input>\n"

         );

         try {

             KnockoutModel m = Models.bind(new KnockoutModel(), newContext());

             m.applyBindings();

             assert !m.isEnabled() : "Is disabled";

             triggerClick("b");

             assert m.isEnabled() : "Now the model is enabled";

         } finally {

             Utils.exposeHTML(KnockoutTest.class, "");

         }

     }

     @KOTest public void displayContentOfDerivedArray() throws Exception {

         Object exp = Utils.exposeHTML(KnockoutTest.class, 

             "<ul id='ul' data-bind='foreach: cmpResults'>\n"

             + "  <li><b data-bind='text: $data'></b></li>\n"

             + "</ul>\n"

         );

         try {

             KnockoutModel m = Models.bind(new KnockoutModel(), newContext());

             m.getResults().add("Ahoj");

             m.applyBindings();

             int cnt = countChildren("ul");

             assert cnt == 1 : "One child, but was " + cnt;

             m.getResults().add("hello");

             cnt = countChildren("ul");

             assert cnt == 2 : "Two children now, but was " + cnt;

         } finally {

             Utils.exposeHTML(KnockoutTest.class, "");

         }

     }

     @KOTest public void displayContentOfArrayOfPeople() throws Exception {

         Object exp = Utils.exposeHTML(KnockoutTest.class, 

             "<ul id='ul' data-bind='foreach: people'>\n"

             + "  <li data-bind='text: $data.firstName, click: $root.removePerson'></li>\n"

             + "</ul>\n"

         );

         try {

             final BrwsrCtx c = newContext();

             KnockoutModel m = Models.bind(new KnockoutModel(), c);

             final Person first = Models.bind(new Person(), c);

             first.setFirstName("first");

             m.getPeople().add(first);

             m.applyBindings();

             int cnt = countChildren("ul");

             assert cnt == 1 : "One child, but was " + cnt;

             final Person second = Models.bind(new Person(), c);

             second.setFirstName("second");

             m.getPeople().add(second);

             cnt = countChildren("ul");

             assert cnt == 2 : "Two children now, but was " + cnt;

             triggerChildClick("ul", 1);

             assert 1 == m.getCallbackCount() : "One callback " + m.getCallbackCount();

             cnt = countChildren("ul");

             assert cnt == 1 : "Again one child, but was " + cnt;

             String txt = childText("ul", 0);

             assert "first".equals(txt) : "Expecting 'first': " + txt;

             first.setFirstName("changed");

             txt = childText("ul", 0);

             assert "changed".equals(txt) : "Expecting 'changed': " + txt;

         } finally {

             Utils.exposeHTML(KnockoutTest.class, "");

         }

     }

     @ComputedProperty

     static Person firstPerson(List<Person> people) {

         return people.isEmpty() ? null : people.get(0);

     }

     @KOTest public void accessFirstPersonWithOnFunction() throws Exception {

         Object exp = Utils.exposeHTML(KnockoutTest.class, 

             "<p id='ul' data-bind='with: firstPerson'>\n"

             + "  <span data-bind='text: firstName, click: changeSex'></span>\n"

             + "</p>\n"

         );

         try {

             trasfertToFemale();

         } finally {

             Utils.exposeHTML(KnockoutTest.class, "");

         }

     }

     @KOTest public void onPersonFunction() throws Exception {

         Object exp = Utils.exposeHTML(KnockoutTest.class, 

             "<ul id='ul' data-bind='foreach: people'>\n"

             + "  <li data-bind='text: $data.firstName, click: changeSex'></li>\n"

             + "</ul>\n"

         );

         try {

             trasfertToFemale();

         } finally {

             Utils.exposeHTML(KnockoutTest.class, "");

         }

     }

     private void trasfertToFemale() throws Exception {

         KnockoutModel m = Models.bind(new KnockoutModel(), newContext());

         final Person first = Models.bind(new Person(), newContext());

         first.setFirstName("first");

         first.setSex(Sex.MALE);

         m.getPeople().add(first);

         m.applyBindings();

         int cnt = countChildren("ul");

         assert cnt == 1 : "One child, but was " + cnt;

         triggerChildClick("ul", 0);

         assert first.getSex() == Sex.FEMALE : "Transverted to female: " + first.getSex();

     }

     @Function

     static void call(KnockoutModel m, String data) {

         m.setName(data);

         m.setCallbackCount(m.getCallbackCount() + 1);

     }

     @Function

     static void removePerson(KnockoutModel model, Person data) {

         model.setCallbackCount(model.getCallbackCount() + 1);

         model.getPeople().remove(data);

     }

     @ComputedProperty

     static String helloMessage(String name) {

         return "Hello " + name + "!";

     }

     @ComputedProperty

     static List<String> cmpResults(List<String> results) {

         return results;

     }

     private static int countChildren(String id) throws Exception {

         return ((Number)Utils.executeScript(

           KnockoutTest.class,

           "var e = window.document.getElementById(arguments[0]);\n "

         + "if (typeof e === 'undefined') return -2;\n "

         + "return e.children.length;", 

             id

         )).intValue();

     }

     private static void triggerClick(String id) throws Exception {

         String s = "var id = arguments[0];"

             + "var e = window.document.getElementById(id);\n "

             + "var ev = window.document.createEvent('MouseEvents');\n "

             + "ev.initMouseEvent('click', true, false, window, 0, 0, 0, 0, 0, false, false, false, false, 0, null);\n "

             + "e.dispatchEvent(ev);\n ";

         Utils.executeScript(

             KnockoutTest.class,

             s, id);

     }

     private static void triggerChildClick(String id, int pos) throws Exception {

         String s = "var id = arguments[0]; var pos = arguments[1];"

             + "var e = window.document.getElementById(id);\n "

             + "var ev = window.document.createEvent('MouseEvents');\n "

             + "ev.initMouseEvent('click', true, false, window, 0, 0, 0, 0, 0, false, false, false, false, 0, null);\n "

             + "e.children[pos].dispatchEvent(ev);\n ";

         Utils.executeScript(

             KnockoutTest.class,

             s, id, pos);

     }

     private static String childText(String id, int pos) throws Exception {

         String s = "var id = arguments[0]; var pos = arguments[1];"

         + "var e = window.document.getElementById(id);\n "

         + "var t = e.children[pos].innerHTML;\n "

         + "return t ? t : null;";

         return (String)Utils.executeScript(

             KnockoutTest.class,

             s, id, pos);

     }

     private static BrwsrCtx newContext() {

         return Utils.newContext(KnockoutTest.class);

     }

 }