/*

  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.

  *

  * The contents of this file are subject to the terms of either the GNU

  * General Public License Version 2 only ("GPL") or the Common

  * Development and Distribution License("CDDL") (collectively, the

  * "License"). You may not use this file except in compliance with the

  * License. You can obtain a copy of the License at

  * http://www.netbeans.org/cddl-gplv2.html

  * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the

  * specific language governing permissions and limitations under the

  * License.  When distributing the software, include this License Header

  * Notice in each file and include the License file at

  * nbbuild/licenses/CDDL-GPL-2-CP.  Sun designates this

  * particular file as subject to the "Classpath" exception as provided

  * by Sun in the GPL Version 2 section of the License file that

  * accompanied this code. If applicable, add the following below the

  * License Header, with the fields enclosed by brackets [] replaced by

  * your own identifying information:

  * "Portions Copyrighted [year] [name of copyright owner]"

  *

  * Contributor(s):

  *

  * Portions Copyrighted 2009 Jaroslav Tulach

  */

 package cz.xelfi.quoridor.freemarkerdor;

 import com.sun.jersey.api.client.Client;

 import com.sun.jersey.api.client.UniformInterfaceException;

 import com.sun.jersey.api.client.WebResource;

 import com.sun.jersey.api.container.httpserver.HttpServerFactory;

 import com.sun.jersey.api.core.PackagesResourceConfig;

 import com.sun.jersey.api.core.ResourceConfig;

 import com.sun.jersey.api.view.Viewable;

 import com.sun.net.httpserver.HttpServer;

 import java.io.File;

 import java.io.FileInputStream;

 import java.io.IOException;

 import java.net.URI;

 import java.util.HashMap;

 import java.util.Locale;

 import java.util.Map;

 import java.util.MissingResourceException;

 import java.util.Properties;

 import java.util.ResourceBundle;

 import java.util.concurrent.Callable;

 import javax.ws.rs.DefaultValue;

 import javax.ws.rs.FormParam;

 import javax.ws.rs.GET;

 import javax.ws.rs.POST;

 import javax.ws.rs.Path;

 import javax.ws.rs.PathParam;

 import javax.ws.rs.Produces;

 import javax.ws.rs.QueryParam;

 import javax.ws.rs.core.Context;

 import javax.ws.rs.core.HttpHeaders;

 import javax.ws.rs.core.MediaType;

 import javax.ws.rs.core.NewCookie;

 import javax.ws.rs.core.Response;

 import org.w3c.dom.Document;

 /**

  *

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

  */

 @Path("/")

 public final class UI {

     private static WebResource base;

     @Context

     private HttpHeaders headers;

     private String user;

     public UI() {

     }

     private Viewable checkLogin() {

         if (headers.getCookies().containsKey("login")) {

             user = headers.getCookies().get("login").getValue();

             return null;

         }

         return viewable("login.fmt", null);

     }

     @POST

     @Path("login")

     @Produces(MediaType.TEXT_HTML)

     public Response login(

         @FormParam("name") String name, @FormParam("password") String password

     ) throws Exception {

         File f = new File(new File(System.getProperty("quoridor.dir")), "passwd");

         Properties p = new Properties();

         try {

             p.load(new FileInputStream(f));

         } catch (IOException ex) {

             ex.printStackTrace();

         }

         if (name != null && password.equals(p.getProperty(name))) {

             user = name;

             return Response.ok().cookie(new NewCookie("login", name)).entity(viewable("login.fmt", null)).build();

         } else {

             Viewable v = viewable("login.fmt", null, "message", "Invalid name or password: " + name);

             return Response.status(1).entity(v).build();

         }

     }

     @GET

     @Produces(MediaType.TEXT_HTML)

     public Viewable welcome() {

         Viewable v = checkLogin();

         if (v != null) {

             return v;

         }

         return welcomeImpl();

     }

     @GET

     @Path("games/{id}/")

     @Produces(MediaType.TEXT_HTML)

     public Viewable board(@PathParam("id") String id) {

         return board(id, null);

     }

     private Viewable board(@PathParam("id") String id, String msg) {

         Viewable v = checkLogin();

         if (v != null) {

             return v;

         }

         Document doc = base.path("games").path(id).accept(MediaType.TEXT_XML).get(Document.class);

         return viewable("game.fmt", doc, "message", msg);

     }

     @GET

     @Path("games/{id}/move")

     @Produces(MediaType.TEXT_HTML)

     public Viewable move(

         @PathParam("id") String id,

         @QueryParam("type") String type,

         @QueryParam("direction") String direction,

         @QueryParam("direction-next") @DefaultValue("") String directionNext,

         @QueryParam("column") @DefaultValue("") String column,

         @QueryParam("row") @DefaultValue("") String row

     ) {

         Viewable v = checkLogin();

         if (v != null) {

             return v;

         }

         WebResource wr = base.path("games").path(id).queryParam("player", user);

         try {

             if (type.equals("resign")) {

                 wr.queryParam("move", "RESIGN").put();

                 return board(id);

             }

             if (type.equals("fence")) {

                 wr.queryParam("move", direction.charAt(0) + column + row).put();

                 return board(id);

             }

             if (type.equals("move")) {

                 wr.queryParam("move", direction + directionNext).put();

                 return board(id);

             }

         } catch (UniformInterfaceException ex) {

             return board(id, "WRONG_MOVE");

         }

         return board(id);

     }

     @GET

     @Path("games/create")

     @Produces(MediaType.TEXT_HTML)

     public Response create(

         @QueryParam("white") String white,

         @QueryParam("black") String black

     ) {

         Viewable v = checkLogin();

         if (v != null) {

             return Response.status(Response.Status.FORBIDDEN).entity(v).build();

         }

         if (user.equals(white) || user.equals(black)) {

             Object obj =

                 base.path("games").queryParam("white", white).

                 queryParam("black", black).accept(MediaType.TEXT_XML).post(Document.class);

             return Response.ok(welcomeImpl()).build();

         } else {

             return Response.status(Response.Status.NOT_FOUND).

                 entity(welcomeImpl("message", "You (" + user + ") must be white or black!")).build();

         }

     }

     private Viewable welcomeImpl(Object... args) {

         final Document got = base.path("games").accept(MediaType.TEXT_XML).get(Document.class);

         return viewable("index.fmt", got, args);

     }

     //

     // start the server

     //

     public static void main(String[] args) throws Exception {

         int port = 9998;

         if (args.length > 1) {

             port = Integer.parseInt(args[0]);

         }

         Callable<Void> r = startServers(port);

         if (args.length > 2 && args[1].equals("--kill")) {

             System.out.println("Hit enter to stop it...");

             System.in.read();

         } else {

             synchronized (UI.class) {

                 UI.class.wait();

             }

         }

         r.call();

         System.exit(0);

     }

     static Callable<Void> startServers(int port) throws Exception {

         if (System.getProperty("quoridor.dir") == null) {

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

             File quoridor = new File(home, ".quoridor");

             System.setProperty("quoridor.dir", quoridor.getPath());

         }

         ResourceConfig rc = new PackagesResourceConfig(

             "cz.xelfi.quoridor.webidor",

             "cz.xelfi.quoridor.freemarkerdor"

         );

         Client client = new Client();

         base = client.resource(new URI("http://localhost:" + port + "/api/"));

         final String baseUri = "http://localhost:" + port + "/";

         final HttpServer server = HttpServerFactory.create(baseUri, rc);

         server.start();

         System.out.println("Quoridor started at port " + port);

         return new Callable<Void>() {

             public Void call() throws Exception {

                 server.stop(0);

                 return null;

             }

         };

     }

     private Viewable viewable(String page, Document doc, Object... more) {

         ResourceBundle rb = null;

         for (Locale l : headers.getAcceptableLanguages()) {

             try {

                 rb = ResourceBundle.getBundle("cz.xelfi.quoridor.freemarkerdor.UI.Bundle", l);

             } catch (MissingResourceException e) {

                 // OK

             }

         }

         if (rb == null) {

             rb = ResourceBundle.getBundle("cz.xelfi.quoridor.freemarkerdor.UI.Bundle", Locale.ENGLISH);

         }

         Map<String,Object> map = new HashMap<String,Object>();

         map.put("doc", doc);

         map.put("user", user);

         map.put("bundle", rb);

         map.put("now", System.currentTimeMillis());

         for (int i = 0; i < more.length; i += 2) {

             map.put((String)more[i],more[i + 1]);

         }

         return new Viewable(page, map);

     }

 }