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 package net.java.html.json;

 import net.java.html.BrwsrCtx;

 import java.util.ArrayList;

 import java.util.Collections;

 import java.util.Iterator;

 import java.util.List;

 import java.util.ListIterator;

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

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

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

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

 import static org.testng.Assert.*;

 import org.testng.annotations.BeforeMethod;

 import org.testng.annotations.Test;

 /**

  *

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

  */

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

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

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

     @Property(name = "unrelated", type = long.class),

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

     @Property(name = "values", type = int.class, array = true),

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

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

 })

 public class ModelTest {

     private MockTechnology my;

     private Modelik model;

     private static Modelik leakedModel;

     @BeforeMethod

     public void createModel() {

         my = new MockTechnology();

         final BrwsrCtx c = Contexts.newBuilder().register(Technology.class, my, 1).build();

         model = Models.bind(new Modelik(), c);

     }

     @Test public void classGeneratedWithSetterGetter() {

         model.setValue(10);

         assertEquals(10, model.getValue(), "Value changed");

     }

     @Test public void computedMethod() {

         model.setValue(4);

         assertEquals(16, model.getPowerValue());

     }

     @Test public void equalsAndHashCode() {

         Modelik m1 = new Modelik(10, 20, 30, "changed", "firstName");

         Modelik m2 = new Modelik(10, 20, 30, "changed", "firstName");

         assertTrue(m1.equals(m2), "They are the same");

         assertEquals(m1.hashCode(), m2.hashCode(), "Hashcode is the same");

         m1.setCount(33);

         assertFalse(m1.equals(m2), "No longer the same");

         assertFalse(m1.hashCode() == m2.hashCode(), "No longe is hashcode is the same");

     }

     @Test public void arrayIsMutable() {

         assertEquals(model.getNames().size(), 0, "Is empty");

         model.getNames().add("Jarda");

         assertEquals(model.getNames().size(), 1, "One element");

     }

     @Test public void arrayChangesNotNotifiedUntilInitied() {

         model.getNames().add("Hello");

         assertTrue(my.mutated.isEmpty(), "No change now " + my.mutated);

         model.getNames().remove("Hello");

         assertTrue(my.mutated.isEmpty(), "No change still " + my.mutated);

         assertTrue(model.getNames().isEmpty(), "No empty");

     }

     @Test public void arrayChangesNotified() {

         Models.applyBindings(model);

         model.getNames().add("Hello");

         assertFalse(my.mutated.isEmpty(), "There was a change" + my.mutated);

         assertTrue(my.mutated.contains("names"), "Change in names property: " + my.mutated);

         my.mutated.clear();

         Iterator<String> it = model.getNames().iterator();

         assertEquals(it.next(), "Hello");

         it.remove();

         assertFalse(my.mutated.isEmpty(), "There was a change" + my.mutated);

         assertTrue(my.mutated.contains("names"), "Change in names property: " + my.mutated);

         my.mutated.clear();

         ListIterator<String> lit = model.getNames().listIterator();

         lit.add("Jarda");

         assertFalse(my.mutated.isEmpty(), "There was a change" + my.mutated);

         assertTrue(my.mutated.contains("names"), "Change in names property: " + my.mutated);

     }

     @Test public void autoboxedArray() {

         model.getValues().add(10);

         assertEquals(model.getValues().get(0), Integer.valueOf(10), "Really ten");

     }

     @Test public void derivedArrayProp() {

         model.applyBindings();

         model.setCount(10);

         List<String> arr = model.getRepeat();

         assertEquals(arr.size(), 10, "Ten items: " + arr);

         my.mutated.clear();

         model.setCount(5);

         arr = model.getRepeat();

         assertEquals(arr.size(), 5, "Five items: " + arr);

         assertEquals(my.mutated.size(), 2, "Two properties changed: " + my.mutated);

         assertTrue(my.mutated.contains("repeat"), "Array is in there: " + my.mutated);

         assertTrue(my.mutated.contains("count"), "Count is in there: " + my.mutated);

     }

     @Test public void derivedPropertiesAreNotified() {

         model.applyBindings();

         model.setValue(33);

         // not interested in change of this property

         my.mutated.remove("changedProperty");

         my.mutated.remove("changedProperty");

         assertEquals(my.mutated.size(), 2, "Two properties changed: " + my.mutated);

         assertTrue(my.mutated.contains("powerValue"), "Power value is in there: " + my.mutated);

         assertTrue(my.mutated.contains("value"), "Simple value is in there: " + my.mutated);

         my.mutated.clear();

         model.setUnrelated(44);

         // not interested in change of this property

         my.mutated.remove("changedProperty");

         assertEquals(my.mutated.size(), 1, "One property changed: " + my.mutated);

         assertTrue(my.mutated.contains("unrelated"), "Its name is unrelated");

     }

     @Test public void computedPropertyCannotWriteToModel() {

         leakedModel = model;

         try {

             String res = model.getNotAllowedWrite();

             fail("We should not be allowed to write to the model: " + res);

         } catch (IllegalStateException ex) {

             // OK, we can't read

         }

     }

     @Test public void computedPropertyCannotReadToModel() {

         leakedModel = model;

         try {

             String res = model.getNotAllowedRead();

             fail("We should not be allowed to read from the model: " + res);

         } catch (IllegalStateException ex) {

             // OK, we can't read

         }

     }

     @OnReceive(url = "{protocol}://{host}?query={query}", data = Person.class, onError = "errorState")

     static void loadPeople(Modelik thiz, People p) {

         Modelik m = null;

         m.applyBindings();

         m.loadPeople("http", "apidesign.org", "query", new Person());

     }

     static void errorState(Modelik thiz, Exception ex) {

     }

     @OnReceive(url = "{protocol}://{host}?callback={back}&query={query}", jsonp = "back")

     static void loadPeopleViaJSONP(Modelik thiz, People p) {

         Modelik m = null;

         m.applyBindings();

         m.loadPeopleViaJSONP("http", "apidesign.org", "query");

     }

     @Function 

     static void doSomething() {

     }

     @ComputedProperty

     static int powerValue(int value) {

         return value * value;

     }

     @OnPropertyChange({ "powerValue", "unrelated" })

     static void aPropertyChanged(Modelik m, String name) {

         m.setChangedProperty(name);

     }

     @OnPropertyChange({ "values" })

     static void anArrayPropertyChanged(String name, Modelik m) {

         m.setChangedProperty(name);

     }

     @Test public void changeAnything() {

         model.setCount(44);

         assertNull(model.getChangedProperty(), "No observed value change");

     }

     @Test public void changeValue() {

         model.setValue(33);

         assertEquals(model.getChangedProperty(), "powerValue", "power property changed");

     }

     @Test public void changeUnrelated() {

         model.setUnrelated(333);

         assertEquals(model.getChangedProperty(), "unrelated", "unrelated changed");

     }

     @Test public void changeInArray() {

         model.getValues().add(10);

         assertNull(model.getChangedProperty(), "No change before applyBindings");

         model.applyBindings();

         model.getValues().add(10);

         assertEquals(model.getChangedProperty(), "values", "Something added into the array");

     }

     @ComputedProperty

     static String notAllowedRead() {

         return "Not allowed callback: " + leakedModel.getUnrelated();

     }

     @ComputedProperty

     static String notAllowedWrite() {

         leakedModel.setUnrelated(11);

         return "Not allowed callback!";

     }

     @ComputedProperty

     static List<String> repeat(int count) {

         return Collections.nCopies(count, "Hello");

     }

     public @Test void hasPersonPropertyAndComputedFullName() {

         List<Person> arr = model.getPeople();

         assertEquals(arr.size(), 0, "By default empty");

         Person p = null;

         if (p != null) {

             String fullNameGenerated = p.getFullName();

             assertNotNull(fullNameGenerated);

         }

     }

     private static class MockTechnology implements Technology<Object> {

         private final List<String> mutated = new ArrayList<String>();

         @Override

         public Object wrapModel(Object model) {

             return this;

         }

         @Override

         public void valueHasMutated(Object data, String propertyName) {

             mutated.add(propertyName);

         }

         @Override

         public void bind(PropertyBinding b, Object model, Object data) {

         }

         @Override

         public void expose(FunctionBinding fb, Object model, Object d) {

         }

         @Override

         public void applyBindings(Object data) {

         }

         @Override

         public Object wrapArray(Object[] arr) {

             return arr;

         }

         @Override

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

             return modelClass.cast(data);

         }

         @Override

         public void runSafe(Runnable r) {

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

         }

     }

 }