/**

  * 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 com.oracle.chess.client.htmljava;

 import java.io.File;

 import java.io.FileInputStream;

 import java.io.FileOutputStream;

 import java.io.IOException;

 import java.util.Properties;

 import net.java.html.json.ComputedProperty;

 import net.java.html.json.Model;

 import net.java.html.json.ModelOperation;

 import net.java.html.json.Property;

 /**

  *

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

  */

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

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

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

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

 })

 class SettingsModel {

     private static final String SETTINGS = ".j1chess/html.properties";

     private static final String DEFAULT_URL = "ws://localhost:8080/chess/chessserver";

     @ComputedProperty static boolean validCredentials(String username, String password) {

         return username != null && password != null && !username.isEmpty() && !password.isEmpty();

     }

     @ModelOperation static void read(Settings s) {

         File prefs = new File(System.getProperty("user.home"), SETTINGS);

         try (FileInputStream is = new FileInputStream(prefs)) {

             Properties p = new Properties();

             p.load(is);

             s.setUsername(p.getProperty("username", ""));

             s.setPassword(p.getProperty("password", ""));

             s.setUrl(p.getProperty("url", DEFAULT_URL));

         } catch (Throwable ex) {

             s.setUsername("");

             s.setPassword("");

             s.setUrl(DEFAULT_URL);

         }

     }

     @ModelOperation static void write(Settings s, UI ui) {

         File prefs = new File(System.getProperty("user.home"), SETTINGS);

         prefs.getParentFile().mkdirs();

         try (FileOutputStream os = new FileOutputStream(prefs)) {

             Properties p = new Properties();

             p.setProperty("username", s.getUsername());

             p.setProperty("password", s.getPassword());

             p.setProperty("url", s.getUrl());

             p.store(os, "Java One Chess Preferences for HTML/Java Client");

         } catch (Throwable ex) {

             ui.setStatus("Cannot save preferences: " + ex.getMessage());

         }

     }

 }