/**
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.activemq.transport.tcp;

import java.io.IOException;
import java.net.URI;
import java.util.HashMap;
import java.util.Map;

import junit.framework.TestCase;

import org.apache.activemq.openwire.OpenWireFormat;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class SslTransportFactoryTest extends TestCase {

   private static final Logger LOG = LoggerFactory.getLogger(SslTransportFactoryTest.class);

   private SslTransportFactory factory;
   private boolean verbose;

   @Override
   protected void setUp() throws Exception {
      factory = new SslTransportFactory();
   }

   @Override
   protected void tearDown() throws Exception {
      super.tearDown();
   }

   public void testBindServerOptions() throws IOException {

      SslTransportServer sslTransportServer = null;

      for (int i = 0; i < 4; ++i) {
         final boolean wantClientAuth = (i & 0x1) == 1;
         final boolean needClientAuth = (i & 0x2) == 2;

         String options = "wantClientAuth=" + (wantClientAuth ? "true" : "false") + "&needClientAuth=" + (needClientAuth ? "true" : "false");

         try {
            sslTransportServer = (SslTransportServer) factory.doBind(new URI("ssl://localhost:61616?" + options));
         } catch (Exception e) {
            fail("Unable to bind to address: " + e.getMessage());
         }

         assertEquals("Created ServerSocket did not have correct wantClientAuth status.", sslTransportServer.getWantClientAuth(), wantClientAuth);

         assertEquals("Created ServerSocket did not have correct needClientAuth status.", sslTransportServer.getNeedClientAuth(), needClientAuth);

         try {
            sslTransportServer.stop();
         } catch (Exception e) {
            fail("Unable to stop TransportServer: " + e.getMessage());
         }
      }
   }

   private int getMthNaryDigit(int number, int digitIdx, int numBase) {
      return (number / ((int) Math.pow(numBase, digitIdx))) % numBase;
   }

   public void testCompositeConfigure() throws IOException {
      // The 5 options being tested.
      int optionSettings[] = new int[5];

      String optionNames[] = {"wantClientAuth", "needClientAuth", "socket.wantClientAuth", "socket.needClientAuth", "socket.useClientMode"};

      // Using a trinary interpretation of i to set all possible values of
      // stub options for socket and transport.
      // 2 transport options, 3 socket options, 3 settings for each option =>
      // 3^5 = 243 combos.
      for (int i = 0; i < 243; ++i) {
         Map<String, String> options = new HashMap<>();

         for (int j = 0; j < 5; ++j) {
            // -1 since the option range is [-1,1], not [0,2].
            optionSettings[j] = getMthNaryDigit(i, j, 3) - 1;

            if (optionSettings[j] != -1) {
               options.put(optionNames[j], optionSettings[j] == 1 ? "true" : "false");
            }
         }

         StubSSLSocket socketStub = new StubSSLSocket(null);
         StubSslTransport transport = null;

         try {
            transport = new StubSslTransport(null, socketStub);
         } catch (Exception e) {
            fail("Unable to create StubSslTransport: " + e.getMessage());
         }

         if (verbose) {
            LOG.info("");
            LOG.info("Iteration: " + i);
            LOG.info("Map settings: " + options);
            for (int x = 0; x < optionSettings.length; x++) {
               LOG.info("optionSetting[" + x + "] = " + optionSettings[x]);
            }
         }

         factory.compositeConfigure(transport, new OpenWireFormat(), options);

         // lets start the transport to force the introspection
         try {
            transport.start();
         } catch (Exception e) {
            // ignore bad connection
         }

         if (socketStub.getWantClientAuthStatus() != optionSettings[2]) {
            LOG.info("sheiite");
         }

         assertEquals("wantClientAuth was not properly set for iteration: " + i, optionSettings[0], transport.getWantClientAuthStatus());
         assertEquals("needClientAuth was not properly set for iteration: " + i, optionSettings[1], transport.getNeedClientAuthStatus());
         assertEquals("socket.wantClientAuth was not properly set for iteration: " + i, optionSettings[2], socketStub.getWantClientAuthStatus());
         assertEquals("socket.needClientAuth was not properly set for iteration: " + i, optionSettings[3], socketStub.getNeedClientAuthStatus());
         assertEquals("socket.useClientMode was not properly set for iteration: " + i, optionSettings[4], socketStub.getUseClientModeStatus());
      }
   }
}
