/**

  * The MIT License (MIT)

  *

  * Copyright (C) 2013 Jaroslav Tulach <jaroslav.tulach@apidesign.org>

  *

  * Permission is hereby granted, free of charge, to any person obtaining a copy

  * of this software and associated documentation files (the "Software"), to deal

  * in the Software without restriction, including without limitation the rights

  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

  * copies of the Software, and to permit persons to whom the Software is

  * furnished to do so, subject to the following conditions:

  *

  * The above copyright notice and this permission notice shall be included in

  * all copies or substantial portions of the Software.

  *

  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN

  * THE SOFTWARE.

  */

 package org.apidesign.demo.chat.shared;

 import net.java.html.json.ComputedProperty;

 import net.java.html.json.Model;

 import net.java.html.json.Property;

 /** Generic model of communication between browser and a chat server.

  * The same code is then used on the server, on the client and even in unit 

  * tests.

  * 

  * @author Jaroslav Tulach <jaroslav.tulach@apidesign.org>

  */

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

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

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

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

 })

 class MessageImpl {

     @ComputedProperty static String at(long since) {

         long delta = since / 1000;

         if (delta <= 0) {

             return "Boot-time";

         }

         if (delta < 60) {

             return delta + "s";

         }

         delta /= 60;

         return delta + "min";

     }

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

         @Property(name = "messages", type = Message.class, array = true)

     })

     class QryMsgs {

     }

 }