/*
 * Copyright 2015 LinkedIn Corp.
 *
 * Licensed 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 azkaban.server;

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

import org.junit.Assert;
import org.junit.Test;

import azkaban.executor.ExecutableFlow;
import azkaban.executor.ExecutionOptions;
import azkaban.executor.ExecutorManagerException;
import azkaban.user.Permission.Type;
import azkaban.user.User;
import azkaban.user.UserManager;
import azkaban.user.UserManagerException;
import azkaban.utils.TestUtils;

/**
 * Test class for HttpRequestUtils
 */
public final class HttpRequestUtilsTest {
  /* Helper method to get a test flow and add required properties */
  public static ExecutableFlow createExecutableFlow() throws IOException {
    ExecutableFlow flow = TestUtils.createExecutableFlow("exectest1", "exec1");
    flow.getExecutionOptions().getFlowParameters()
      .put(ExecutionOptions.FLOW_PRIORITY, "1");
    flow.getExecutionOptions().getFlowParameters()
      .put(ExecutionOptions.USE_EXECUTOR, "2");
    return flow;
  }

  /* Test that flow properties are removed for non-admin user */
  @Test
  public void TestFilterNonAdminOnlyFlowParams() throws IOException,
    ExecutorManagerException, UserManagerException {
    ExecutableFlow flow = createExecutableFlow();
    UserManager manager = TestUtils.createTestXmlUserManager();
    User user = manager.getUser("testUser", "testUser");

    HttpRequestUtils.filterAdminOnlyFlowParams(manager,
      flow.getExecutionOptions(), user);

    Assert.assertFalse(flow.getExecutionOptions().getFlowParameters()
      .containsKey(ExecutionOptions.FLOW_PRIORITY));
    Assert.assertFalse(flow.getExecutionOptions().getFlowParameters()
      .containsKey(ExecutionOptions.USE_EXECUTOR));
  }

  /* Test that flow properties are retained for admin user */
  @Test
  public void TestFilterAdminOnlyFlowParams() throws IOException,
    ExecutorManagerException, UserManagerException {
    ExecutableFlow flow = createExecutableFlow();
    UserManager manager = TestUtils.createTestXmlUserManager();
    User user = manager.getUser("testAdmin", "testAdmin");

    HttpRequestUtils.filterAdminOnlyFlowParams(manager,
      flow.getExecutionOptions(), user);

    Assert.assertTrue(flow.getExecutionOptions().getFlowParameters()
      .containsKey(ExecutionOptions.FLOW_PRIORITY));
    Assert.assertTrue(flow.getExecutionOptions().getFlowParameters()
      .containsKey(ExecutionOptions.USE_EXECUTOR));
  }

  /* Test exception, if param is a valid integer */
  @Test
  public void testvalidIntegerParam() throws ExecutorManagerException {
    Map<String, String> params = new HashMap<String, String>();
    params.put("param1", "123");
    HttpRequestUtils.validateIntegerParam(params, "param1");
  }

  /* Test exception, if param is not a valid integer */
  @Test(expected = ExecutorManagerException.class)
  public void testInvalidIntegerParam() throws ExecutorManagerException {
    Map<String, String> params = new HashMap<String, String>();
    params.put("param1", "1dff2");
    HttpRequestUtils.validateIntegerParam(params, "param1");
  }

  /* Verify permission for admin user */
  @Test
  public void testHasAdminPermission() throws UserManagerException {
    UserManager manager = TestUtils.createTestXmlUserManager();
    User adminUser = manager.getUser("testAdmin", "testAdmin");
    Assert.assertTrue(HttpRequestUtils.hasPermission(manager, adminUser,
      Type.ADMIN));
  }

  /* verify permission for non-admin user */
  @Test
  public void testHasOrdinaryPermission() throws UserManagerException {
    UserManager manager = TestUtils.createTestXmlUserManager();
    User testUser = manager.getUser("testUser", "testUser");
    Assert.assertFalse(HttpRequestUtils.hasPermission(manager, testUser,
      Type.ADMIN));
  }
}