/**

 * Back 2 Browser Bytecode Translator

 * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>

 *

 * This program is free software: you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation, version 2 of the License.

 *

 * 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 Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program. Look for COPYING file in the top folder.

 * If not, see http://opensource.org/licenses/GPL-2.0.

 */

package org.apidesign.bck2brwsr.htmlpage;

import java.util.Arrays;

import java.util.Iterator;

import org.apidesign.bck2brwsr.core.JavaScriptBody;

import org.apidesign.bck2brwsr.htmlpage.api.OnReceive;

import org.apidesign.bck2brwsr.htmlpage.api.Page;

import org.apidesign.bck2brwsr.htmlpage.api.Property;

import org.apidesign.bck2brwsr.vmtest.BrwsrTest;

import org.apidesign.bck2brwsr.vmtest.Http;

import org.apidesign.bck2brwsr.vmtest.VMTest;

import org.json.JSONException;

import org.json.JSONObject;

import org.json.JSONTokener;

import org.testng.annotations.Test;

import static org.testng.Assert.*;

import org.testng.annotations.Factory;

/** Need to verify that models produce reasonable JSON objects.

 *

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

 */

@Page(xhtml = "Empty.html", className = "JSONik", properties = {

    @Property(name = "fetched", type = PersonImpl.class),

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

    @Property(name = "fetchedSex", type = Sex.class, array = true)

})

public class JSONTest {

    private JSONik js;

    private Integer orig;

    @Test public void personToString() throws JSONException {

        Person p = new Person();

        p.setSex(Sex.MALE);

        p.setFirstName("Jarda");

        p.setLastName("Tulach");

        JSONTokener t = new JSONTokener(p.toString());

        JSONObject o;

        try {

            o = new JSONObject(t);

        } catch (JSONException ex) {

            throw new AssertionError("Can't parse " + p.toString(), ex);

        }

        Iterator it = o.sortedKeys();

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

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

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

        assertEquals(o.getString("firstName"), "Jarda");

        assertEquals(o.getString("lastName"), "Tulach");

        assertEquals(o.getString("sex"), "MALE");

    }

    @BrwsrTest public void toJSONInABrowser() throws Throwable {

        Person p = new Person();

        p.setSex(Sex.MALE);

        p.setFirstName("Jarda");

        p.setLastName("Tulach");

        Object json;

        try {

            json = parseJSON(p.toString());

        } catch (Throwable ex) {

            throw new IllegalStateException("Can't parse " + p).initCause(ex);

        }

        Person p2 = new Person(json);

        assert p2.getFirstName().equals(p.getFirstName()) : 

            "Should be the same: " + p.getFirstName() + " != " + p2.getFirstName();

    }

    @Test public void personWithWildCharactersAndNulls() throws JSONException {

        Person p = new Person();

        p.setFirstName("'\"\n");

        p.setLastName("\t\r\u0002");

        JSONTokener t = new JSONTokener(p.toString());

        JSONObject o;

        try {

            o = new JSONObject(t);

        } catch (JSONException ex) {

            throw new AssertionError("Can't parse " + p.toString(), ex);

        }

        Iterator it = o.sortedKeys();

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

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

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

        assertEquals(o.getString("firstName"), p.getFirstName());

        assertEquals(o.getString("lastName"), p.getLastName());

        assertEquals(o.get("sex"), JSONObject.NULL);

    }

    @Test public void personsInArray() throws JSONException {

        Person p1 = new Person();

        p1.setFirstName("One");

        Person p2 = new Person();

        p2.setFirstName("Two");

        People arr = new People();

        arr.getInfo().add(p1);

        arr.getInfo().add(p2);

        arr.getNicknames().add("Prvn\u00ed k\u016f\u0148");

        final String n2 = "Druh\u00fd hlem\u00fd\u017e\u010f, star\u0161\u00ed";

        arr.getNicknames().add(n2);

        arr.getAge().add(33);

        arr.getAge().add(73);

        final String json = arr.toString();

        JSONTokener t = new JSONTokener(json);

        JSONObject o;

        try {

            o = new JSONObject(t);

        } catch (JSONException ex) {

            throw new AssertionError("Can't parse " + json, ex);

        }

        assertEquals(o.getJSONArray("info").getJSONObject(0).getString("firstName"), "One");

        assertEquals(o.getJSONArray("nicknames").getString(1), n2);

        assertEquals(o.getJSONArray("age").getInt(1), 73);

    }

    @OnReceive(url="/{url}")

    static void fetch(Person p, JSONik model) {

        model.setFetched(p);

    }

    @OnReceive(url="/{url}")

    static void fetchArray(Person[] p, JSONik model) {

        model.setFetchedCount(p.length);

        model.setFetched(p[0]);

    }

    @OnReceive(url="/{url}")

    static void fetchPeople(People p, JSONik model) {

        model.setFetchedCount(p.getInfo().size());

        model.setFetched(p.getInfo().get(0));

    }

    @OnReceive(url="/{url}")

    static void fetchPeopleAge(People p, JSONik model) {

        int sum = 0;

        for (int a : p.getAge()) {

            sum += a;

        }

        model.setFetchedCount(sum);

    }

    @Http(@Http.Resource(

        content = "{'firstName': 'Sitar', 'sex': 'MALE'}", 

        path="/person.json", 

        mimeType = "application/json"

    ))

    @BrwsrTest public void loadAndParseJSON() throws InterruptedException {

        if (js == null) {

            js = new JSONik();

            js.applyBindings();

            js.fetch("person.json");

        }

        Person p = js.getFetched();

        if (p == null) {

            throw new InterruptedException();

        }

        assert "Sitar".equals(p.getFirstName()) : "Expecting Sitar: " + p.getFirstName();

        assert Sex.MALE.equals(p.getSex()) : "Expecting MALE: " + p.getSex();

    }

    @OnReceive(url="/{url}?callme={me}", jsonp = "me")

    static void fetchViaJSONP(Person p, JSONik model) {

        model.setFetched(p);

    }

    @Http(@Http.Resource(

        content = "$0({'firstName': 'Mitar', 'sex': 'MALE'})", 

        path="/person.json", 

        mimeType = "application/javascript",

        parameters = { "callme" }

    ))

    @BrwsrTest public void loadAndParseJSONP() throws InterruptedException {

        if (js == null) {

            orig = scriptElements();

            assert orig > 0 : "There should be some scripts on the page";

            js = new JSONik();

            js.applyBindings();

            js.fetchViaJSONP("person.json");

        }

        Person p = js.getFetched();

        if (p == null) {

            throw new InterruptedException();

        }

        assert "Mitar".equals(p.getFirstName()) : "Unexpected: " + p.getFirstName();

        assert Sex.MALE.equals(p.getSex()) : "Expecting MALE: " + p.getSex();

        int now = scriptElements();

        assert orig == now : "The set of elements is unchanged. Delta: " + (now - orig);

    }

    @JavaScriptBody(args = {  }, body = "return window.document.getElementsByTagName('script').length;")

    private static native int scriptElements();

    @JavaScriptBody(args = { "s" }, body = "return window.JSON.parse(s);")

    private static native Object parseJSON(String s);

    @Http(@Http.Resource(

        content = "{'firstName': 'Sitar', 'sex': 'MALE'}", 

        path="/person.json", 

        mimeType = "application/json"

    ))

    @BrwsrTest public void loadAndParseJSONSentToArray() throws InterruptedException {

        if (js == null) {

            js = new JSONik();

            js.applyBindings();

            js.fetchArray("person.json");

        }

        Person p = js.getFetched();

        if (p == null) {

            throw new InterruptedException();

        }

        assert p != null : "We should get our person back: " + p;

        assert "Sitar".equals(p.getFirstName()) : "Expecting Sitar: " + p.getFirstName();

        assert Sex.MALE.equals(p.getSex()) : "Expecting MALE: " + p.getSex();

    }

    @Http(@Http.Resource(

        content = "[{'firstName': 'Gitar', 'sex': 'FEMALE'}]", 

        path="/person.json", 

        mimeType = "application/json"

    ))

    @BrwsrTest public void loadAndParseJSONArraySingle() throws InterruptedException {

        if (js == null) {

            js = new JSONik();

            js.applyBindings();

            js.fetch("person.json");

        }

        Person p = js.getFetched();

        if (p == null) {

            throw new InterruptedException();

        }

        assert p != null : "We should get our person back: " + p;

        assert "Gitar".equals(p.getFirstName()) : "Expecting Gitar: " + p.getFirstName();

        assert Sex.FEMALE.equals(p.getSex()) : "Expecting FEMALE: " + p.getSex();

    }

    @Http(@Http.Resource(

        content = "{'info':[{'firstName': 'Gitar', 'sex': 'FEMALE'}]}", 

        path="/people.json", 

        mimeType = "application/json"

    ))

    @BrwsrTest public void loadAndParseArrayInPeople() throws InterruptedException {

        if (js == null) {

            js = new JSONik();

            js.applyBindings();

            js.fetchPeople("people.json");

        }

        if (0 == js.getFetchedCount()) {

            throw new InterruptedException();

        }

        assert js.getFetchedCount() == 1 : "One person loaded: " + js.getFetchedCount();

        Person p = js.getFetched();

        assert p != null : "We should get our person back: " + p;

        assert "Gitar".equals(p.getFirstName()) : "Expecting Gitar: " + p.getFirstName();

        assert Sex.FEMALE.equals(p.getSex()) : "Expecting FEMALE: " + p.getSex();

    }

    @Http(@Http.Resource(

        content = "{'age':[1, 2, 3]}", 

        path="/people.json", 

        mimeType = "application/json"

    ))

    @BrwsrTest public void loadAndParseArrayOfIntegers() throws InterruptedException {

        if (js == null) {

            js = new JSONik();

            js.applyBindings();

            js.fetchPeopleAge("people.json");

        }

        if (0 == js.getFetchedCount()) {

            throw new InterruptedException();

        }

        assert js.getFetchedCount() == 6 : "1 + 2 + 3 is " + js.getFetchedCount();

    }

    @OnReceive(url="/{url}")

    static void fetchPeopleSex(People p, JSONik model) {

        model.setFetchedCount(1);

        model.getFetchedSex().addAll(p.getSex());

    }

    @Http(@Http.Resource(

        content = "{'sex':['FEMALE', 'MALE', 'MALE']}", 

        path="/people.json", 

        mimeType = "application/json"

    ))

    @BrwsrTest public void loadAndParseArrayOfEnums() throws InterruptedException {

        if (js == null) {

            js = new JSONik();

            js.applyBindings();

            js.fetchPeopleSex("people.json");

        }

        if (0 == js.getFetchedCount()) {

            throw new InterruptedException();

        }

        assert js.getFetchedCount() == 1 : "Loaded";

        assert js.getFetchedSex().size() == 3 : "Three values " + js.getFetchedSex();

        assert js.getFetchedSex().get(0) == Sex.FEMALE : "Female first " + js.getFetchedSex();

        assert js.getFetchedSex().get(1) == Sex.MALE : "male 2nd " + js.getFetchedSex();

        assert js.getFetchedSex().get(2) == Sex.MALE : "male 3rd " + js.getFetchedSex();

    }

    @Http(@Http.Resource(

        content = "[{'firstName': 'Gitar', 'sex': 'FEMALE'},"

        + "{'firstName': 'Peter', 'sex': 'MALE'}"

        + "]", 

        path="/person.json", 

        mimeType = "application/json"

    ))

    @BrwsrTest public void loadAndParseJSONArray() throws InterruptedException {

        if (js == null) {

            js = new JSONik();

            js.applyBindings();

            js.fetchArray("person.json");

        }

        Person p = js.getFetched();

        if (p == null) {

            throw new InterruptedException();

        }

        assert js.getFetchedCount() == 2 : "We got two values: " + js.getFetchedCount();

        assert p != null : "We should get our person back: " + p;

        assert "Gitar".equals(p.getFirstName()) : "Expecting Gitar: " + p.getFirstName();

        assert Sex.FEMALE.equals(p.getSex()) : "Expecting FEMALE: " + p.getSex();

    }

    @Factory public static Object[] create() {

        return VMTest.create(JSONTest.class);

    }

}