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 package net.java.html.json.tests;

 import java.io.ByteArrayInputStream;

 import java.io.ByteArrayOutputStream;

 import java.io.PrintStream;

 import net.java.html.BrwsrCtx;

 import net.java.html.json.Model;

 import net.java.html.json.ModelOperation;

 import net.java.html.json.Models;

 import net.java.html.json.OnReceive;

 import net.java.html.json.Property;

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

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

  *

  * @author Jaroslav Tulach

  */

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

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

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

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

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

 })

 public final class JSONTest {

     private JSONik js;

     private Integer orig;

     private String url;

     @ModelOperation static void assignFetched(JSONik m, Person p) {

         m.setFetched(p);

     }

     private BrwsrCtx ctx;

     @KOTest public void toJSONInABrowser() throws Throwable {

         Person p = Models.bind(new Person(), newContext());

         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 = Models.fromRaw(newContext(), Person.class, json);

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

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

     }

     @KOTest public void toJSONWithEscapeCharactersInABrowser() throws Throwable {

         Person p = Models.bind(new Person(), newContext());

         p.setSex(Sex.MALE);

         p.setFirstName("/*\n * Copyright (c) 2013");

         final String txt = p.toString();

         Object json;

         try {

             json = parseJSON(txt);

         } catch (Throwable ex) {

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

         }

         Person p2 = Models.fromRaw(newContext(), Person.class, json);

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

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

     }

     @KOTest public void toJSONWithDoubleSlashInABrowser() throws Throwable {

         Person p = Models.bind(new Person(), newContext());

         p.setSex(Sex.MALE);

         p.setFirstName("/*\\n * Copyright (c) 2013");

         final String txt = p.toString();

         Object json;

         try {

             json = parseJSON(txt);

         } catch (Throwable ex) {

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

         }

         Person p2 = Models.fromRaw(newContext(), Person.class, json);

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

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

     }

     @KOTest public void toJSONWithApostrophInABrowser() throws Throwable {

         Person p = Models.bind(new Person(), newContext());

         p.setSex(Sex.MALE);

         p.setFirstName("Jimmy 'Jim' Rambo");

         final String txt = p.toString();

         Object json;

         try {

             json = parseJSON(txt);

         } catch (Throwable ex) {

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

         }

         Person p2 = Models.fromRaw(newContext(), Person.class, json);

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

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

     }

     private static BrwsrCtx onCallback;

     @OnReceive(url="{url}")

     static void fetch(JSONik model, Person p) {

         model.setFetched(p);

         onCallback = BrwsrCtx.findDefault(model.getClass());

     }

     @OnReceive(url="{url}", onError = "setMessage")

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

         model.setFetchedCount(p.length);

         model.setFetched(p[0]);

         onCallback = BrwsrCtx.findDefault(model.getClass());

     }

     static void setMessage(JSONik m, Exception t) {

         assert t != null;

         m.setFetchedResponse("Exception");

     }

     @OnReceive(url="{url}")

     static void fetchPeople(JSONik model, People p) {

         final int size = p.getInfo().size();

         if (size > 0) {

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

         }

         model.setFetchedCount(size);

     }

     @OnReceive(url="{url}")

     static void fetchPeopleAge(JSONik model, People p) {

         int sum = 0;

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

             sum += a;

         }

         model.setFetchedCount(sum);

     }

     @KOTest public void loadAndParseJSON() throws InterruptedException {

         if (js == null) {

             url = Utils.prepareURL(

                 JSONTest.class, "{'firstName': 'Sitar', 'sex': 'MALE'}",

                 "application/json"

             );

             js = Models.bind(new JSONik(), ctx = newContext());

             js.applyBindings();

             js.setFetched(null);

             js.fetch(url);

         }

         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();

         assert ctx == onCallback;

     }

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

     static void fetchViaJSONP(JSONik model, Person p) {

         model.setFetched(p);

     }

     @KOTest public void loadAndParseJSONP() throws InterruptedException, Exception {

         if (js == null) {

             url = Utils.prepareURL(

                 JSONTest.class, "$0({'firstName': 'Mitar', 'sex': 'MALE'})", 

                 "application/javascript",

                 "callme"

             );

             orig = scriptElements();

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

             js = Models.bind(new JSONik(), newContext());

             js.applyBindings();

             js.setFetched(null);

             js.fetchViaJSONP(url);

         }

         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);

     }

     @OnReceive(url="{url}", method = "PUT", data = Person.class)

     static void putPerson(JSONik model, String reply) {

         model.setFetchedCount(1);

         model.setFetchedResponse(reply);

     }

     @KOTest public void putPeopleUsesRightMethod() throws InterruptedException, Exception {

         if (js == null) {

             url = Utils.prepareURL(

                 JSONTest.class, "$0\n$1", 

                 "text/plain",

                 "http.method", "http.requestBody"

             );

             orig = scriptElements();

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

             js = Models.bind(new JSONik(), newContext());

             js.applyBindings();

             Person p = Models.bind(new Person(), BrwsrCtx.EMPTY);

             p.setFirstName("Jarda");

             js.putPerson(url, p);

         }

         int cnt = js.getFetchedCount();

         if (cnt == 0) {

             throw new InterruptedException();

         }

         String res = js.getFetchedResponse();

         int line = res.indexOf('\n');

         String msg;

         if (line >= 0) {

             msg = res.substring(line + 1);

             res = res.substring(0, line);

         } else {

             msg = res;

         }

         assert "PUT".equals(res) : "Server was queried with PUT method: " + js.getFetchedResponse();

         assert msg.contains("Jarda") : "Data transferred to the server: " + msg;

     }

     private static int scriptElements() throws Exception {

         return ((Number)Utils.executeScript(

             JSONTest.class, 

             "return window.document.getElementsByTagName('script').length;")).intValue();

     }

     private static Object parseJSON(String s) throws Exception {

         return Utils.executeScript(

             JSONTest.class, 

             "return window.JSON.parse(arguments[0]);", s);

     }

     @KOTest public void loadAndParseJSONSentToArray() throws InterruptedException {

         if (js == null) {

             url = Utils.prepareURL(

                 JSONTest.class, "{'firstName': 'Sitar', 'sex': 'MALE'}", 

                 "application/json"

             );

             js = Models.bind(new JSONik(), newContext());

             js.applyBindings();

             js.setFetched(null);

             js.fetchArray(url);

         }

         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();

     }

     @KOTest public void loadAndParseJSONArraySingle() throws InterruptedException {

         if (js == null) {

             url = Utils.prepareURL(

                 JSONTest.class, "[{'firstName': 'Gitar', 'sex': 'FEMALE'}]", 

                 "application/json"

             );

             js = Models.bind(new JSONik(), newContext());

             js.applyBindings();

             js.setFetched(null);

             js.fetch(url);

         }

         Person p = js.getFetched();

         if (p == null) {

             throw new InterruptedException();

         }

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

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

     }

     @KOTest public void loadAndParseArrayInPeople() throws InterruptedException {

         if (js == null) {

             url = Utils.prepareURL(

                 JSONTest.class, "{'info':[{'firstName': 'Gitar', 'sex': 'FEMALE'}]}", 

                 "application/json"

             );

             js = Models.bind(new JSONik(), newContext());

             js.applyBindings();

             js.fetchPeople(url);

         }

         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();

     }

     @KOTest public void loadAndParseArrayOfIntegers() throws InterruptedException {

         if (js == null) {

             url = Utils.prepareURL(

                 JSONTest.class, "{'age':[1, 2, 3]}", 

                 "application/json"

             );

             js = Models.bind(new JSONik(), newContext());

             js.applyBindings();

             js.fetchPeopleAge(url);

         }

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

             throw new InterruptedException();

         }

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

     }

     @OnReceive(url="{url}")

     static void fetchPeopleSex(JSONik model, People p) {

         model.setFetchedCount(1);

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

     }

     @KOTest public void loadAndParseArrayOfEnums() throws InterruptedException {

         if (js == null) {

             url = Utils.prepareURL(

                 JSONTest.class, "{'sex':['FEMALE', 'MALE', 'MALE']}", 

                 "application/json"

             );

             js = Models.bind(new JSONik(), newContext());

             js.applyBindings();

             js.fetchPeopleSex(url);

         }

         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();

     }

     @KOTest public void loadAndParseJSONArray() throws InterruptedException {

         if (js == null) {

             url = Utils.prepareURL(

                 JSONTest.class, "[{'firstName': 'Gitar', 'sex': 'FEMALE'},"

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

                 + "]", 

                 "application/json"

             );

             js = Models.bind(new JSONik(), newContext());

             js.applyBindings();

             js.setFetched(null);

             js.fetchArray(url);

         }

         Person p = js.getFetched();

         if (p == null) {

             throw new InterruptedException();

         }

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

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

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

     }

     @KOTest public void loadError() throws InterruptedException {

         if (js == null) {

             js = Models.bind(new JSONik(), newContext());

             js.applyBindings();

             js.setFetched(null);

             js.fetchArray("http://127.0.0.1:54253/does/not/exist.txt");

         }

         if (js.getFetchedResponse() == null) {

             throw new InterruptedException();

         }

         assert "Exception".equals(js.getFetchedResponse()) : js.getFetchedResponse();

     }

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

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

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

         @Property(name = "small", type = byte.class)

     })

     static class NandV {

     }

     @KOTest public void parseNullNumber() throws Exception {

         String txt = "{ \"name\":\"M\" }";

         ByteArrayInputStream is = new ByteArrayInputStream(txt.getBytes("UTF-8"));

         NameAndValue v = Models.parse(newContext(), NameAndValue.class, is);

         assert "M".equals(v.getName()) : "Name is 'M': " + v.getName();

         assert 0 == v.getValue() : "Value is empty: " + v.getValue();

         assert 0 == v.getSmall() : "Small value is empty: " + v.getSmall();

     }

     @KOTest public void deserializeWrongEnum() throws Exception {

         PrintStream prev = null;

         ByteArrayOutputStream err = new ByteArrayOutputStream();

         try {

             prev = System.err;

             System.setErr(new PrintStream(err));

         } catch (SecurityException e) {

             err = null;

             prev = null;

         } catch (LinkageError e) {

             err = null;

             prev = null;

         }

         String str = "{ \"sex\" : \"unknown\" }";

         ByteArrayInputStream is = new ByteArrayInputStream(str.getBytes("UTF-8"));

         Person p = Models.parse(newContext(), Person.class, is);

         assert p.getSex() == null : "Wrong sex means null, but was: " + p.getSex();

         if (err != null) {

             assert err.toString().contains("unknown") && err.toString().contains("Sex"): "Expecting error: " + err.toString();

         }

         if (prev != null) {

             try {

                 System.setErr(prev);

             } catch (LinkageError e) {

                 // ignore

             }

         }

     }

     private static BrwsrCtx newContext() {

         return Utils.newContext(JSONTest.class);

     }

 }