/**
 * 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.ambari.server.bootstrap;

import static org.mockito.Matchers.any;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;

import java.io.IOException;
import java.net.ServerSocket;
import java.util.ArrayList;

import javax.ws.rs.core.MediaType;

import org.apache.ambari.server.api.rest.BootStrapResource;
import org.apache.ambari.server.bootstrap.BSResponse.BSRunStat;
import org.apache.ambari.server.bootstrap.BootStrapStatus.BSStat;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.codehaus.jettison.json.JSONException;
import org.codehaus.jettison.json.JSONObject;
import org.junit.Test;

import com.google.inject.AbstractModule;
import com.google.inject.Guice;
import com.google.inject.Injector;
import com.sun.jersey.api.client.UniformInterfaceException;
import com.sun.jersey.api.client.WebResource;
import com.sun.jersey.spi.container.servlet.ServletContainer;
import com.sun.jersey.test.framework.JerseyTest;
import com.sun.jersey.test.framework.WebAppDescriptor;

import junit.framework.Assert;

/**
 *  Testing bootstrap API.
 */
public class BootStrapResourceTest extends JerseyTest {

  static String PACKAGE_NAME = "org.apache.ambari.server.api.rest";
  private static Log LOG = LogFactory.getLog(BootStrapResourceTest.class);
  Injector injector;
  BootStrapImpl bsImpl;

  public BootStrapResourceTest() {
    super(new WebAppDescriptor.Builder(PACKAGE_NAME).servletClass(ServletContainer.class)
        .build());
  }

  public class MockModule extends AbstractModule {
    @Override
    protected void configure() {
      BootStrapImpl bsImpl = mock(BootStrapImpl.class);
      when(bsImpl.getStatus(0)).thenReturn(generateDummyBSStatus());
      when(bsImpl.runBootStrap(any(SshHostInfo.class))).thenReturn(generateBSResponse());
      bind(BootStrapImpl.class).toInstance(bsImpl);
      requestStaticInjection(BootStrapResource.class);
    }
  }

  @Override
  public void setUp() throws Exception {
    super.setUp();
    injector = Guice.createInjector(new MockModule());
  }

  @Override
  protected int getPort(int defaultPort) {
    // Find a free port
    try (ServerSocket socket = new ServerSocket(0)) {
      return socket.getLocalPort();
    } catch (IOException e) {
      // Ignore
    }
    return defaultPort;
  }

  protected JSONObject createDummySshInfo() throws JSONException {
    JSONObject json = new JSONObject();
    json.put("sshkey", "awesome");
    json.put("hosts", new ArrayList<String>());
    return json;
  }

  protected BSResponse generateBSResponse() {
    BSResponse response = new BSResponse();
    response.setLog("Logging");
    response.setRequestId(1);
    response.setStatus(BSRunStat.OK);
    return response;
  }

  protected BootStrapStatus generateDummyBSStatus() {
    BootStrapStatus status = new BootStrapStatus();
    status.setLog("Logging ");
    status.setStatus(BSStat.ERROR);
    status.setHostsStatus(new ArrayList<BSHostStatus>());
    return status;
  }

  @Test
  public void bootStrapGet() throws UniformInterfaceException, JSONException {
    WebResource webResource = resource();
    BootStrapStatus status = webResource.path("/bootstrap/0").type(
        MediaType.APPLICATION_JSON)
        .get(BootStrapStatus.class);
    LOG.info("GET Response from the API " + status.getLog() + " " +
        status.getStatus());
    Assert.assertEquals(status.getStatus(), BSStat.ERROR);
  }

  @Test
  public void bootStrapPost() throws UniformInterfaceException, JSONException {
    WebResource webResource = resource();
    JSONObject object = webResource.path("/bootstrap").type(
        MediaType.APPLICATION_JSON).post(JSONObject.class, createDummySshInfo());

    Assert.assertEquals("OK", object.get("status"));
  }
}