/*
 * Copyright (C) 2009 eXo Platform SAS.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */
package org.exoplatform.services.rest.impl.method;

import org.exoplatform.services.rest.BaseTest;
import org.exoplatform.services.rest.Filter;
import org.exoplatform.services.rest.impl.EnvironmentContext;
import org.exoplatform.services.rest.impl.ResourceBinder;
import org.exoplatform.services.rest.method.MethodInvokerFilter;
import org.exoplatform.services.rest.resource.GenericMethodResource;
import org.exoplatform.services.rest.resource.SubResourceMethodDescriptor;
import org.exoplatform.services.test.mock.MockHttpServletRequest;

import javax.servlet.http.HttpServletRequest;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.HttpHeaders;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.UriInfo;
import javax.ws.rs.ext.Providers;

/**
 * @author <a href="mailto:andrew00x@gmail.com">Andrey Parfonov</a>
 * @version $Id: $
 */
public class MethodInvokerFilterTest extends BaseTest
{

   @Filter
   public static class MethodInvokerFilter1 implements MethodInvokerFilter
   {

      private UriInfo uriInfo;

      private HttpHeaders httpHeaders;

      @Context
      private Providers providers;

      @Context
      private HttpServletRequest httpRequest;

      private ResourceBinder binder; // exo container component

      public MethodInvokerFilter1(@Context UriInfo uriInfo, @Context HttpHeaders httpHeaders, ResourceBinder binder)
      {
         this.uriInfo = uriInfo;
         this.httpHeaders = httpHeaders;
         this.binder = binder;
      }

      public void accept(GenericMethodResource genericMethodResource)
      {
         if (uriInfo != null && httpHeaders != null && providers != null && httpRequest != null && binder != null)
         {
            if (genericMethodResource instanceof SubResourceMethodDescriptor)
               // not invoke sub-resource method
               throw new WebApplicationException(Response.status(Response.Status.BAD_REQUEST).build());
         }
         else
         {
            throw new WebApplicationException(Response.status(Response.Status.INTERNAL_SERVER_ERROR).build());
         }
      }

   }

   @Filter
   @Path("b/c")
   public static class MethodInvokerFilter2 implements MethodInvokerFilter
   {

      public void accept(GenericMethodResource genericMethodResource)
      {
         throw new WebApplicationException(Response.status(Response.Status.BAD_REQUEST).build());
      }

   }

   @Path("a")
   public static class Resource1
   {
      @GET
      public void m0()
      {
      }

      @GET
      @Path("b")
      public void m1()
      {
      }
   }

   @Path("b")
   public static class Resource2
   {
      @GET
      @Path("c")
      public void m0()
      {
      }

      @GET
      @Path("d")
      public void m1()
      {
      }
   }

   public void testInvokerFilter() throws Exception
   {
      Resource1 r = new Resource1();
      registry(r);

      EnvironmentContext envctx = new EnvironmentContext();

      HttpServletRequest httpRequest = new MockHttpServletRequest("/a/b", null, 0, "GET", null);
      envctx.put(HttpServletRequest.class, httpRequest);
      assertEquals(204, launcher.service("GET", "/a/b", "", null, null, envctx).getStatus());

      httpRequest = new MockHttpServletRequest("/a", null, 0, "GET", null);
      envctx.put(HttpServletRequest.class, httpRequest);
      assertEquals(204, launcher.service("GET", "/a", "", null, null, envctx).getStatus());

      providers.addMethodInvokerFilter(MethodInvokerFilter1.class);

      httpRequest = new MockHttpServletRequest("/a/b", null, 0, "GET", null);
      envctx.put(HttpServletRequest.class, httpRequest);
      assertEquals(400, launcher.service("GET", "/a/b", "", null, null, envctx).getStatus());

      httpRequest = new MockHttpServletRequest("/a", null, 0, "GET", null);
      envctx.put(HttpServletRequest.class, httpRequest);
      assertEquals(204, launcher.service("GET", "/a", "", null, null, envctx).getStatus());
      unregistry(r);
   }

   public void testInvokerFilter2() throws Exception
   {
      Resource2 r = new Resource2();
      registry(r);
      assertEquals(204, launcher.service("GET", "/b/c", "", null, null, null).getStatus());
      assertEquals(204, launcher.service("GET", "/b/d", "", null, null, null).getStatus());
      providers.addMethodInvokerFilter(new MethodInvokerFilter2());
      assertEquals(400, launcher.service("GET", "/b/c", "", null, null, null).getStatus());
      assertEquals(204, launcher.service("GET", "/b/d", "", null, null, null).getStatus());
      unregistry(r);
   }

}
