/**
 * Licensed to jclouds, Inc. (jclouds) under one or more
 * contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  jclouds 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.jclouds.rackspace.cloudloadbalancers.features;

import static org.testng.Assert.assertEquals;

import java.net.URI;
import java.util.Set;

import javax.ws.rs.core.MediaType;

import org.jclouds.http.HttpResponse;
import org.jclouds.rackspace.cloudloadbalancers.CloudLoadBalancersApi;
import org.jclouds.rackspace.cloudloadbalancers.domain.Node;
import org.jclouds.rackspace.cloudloadbalancers.domain.NodeAttributes;
import org.jclouds.rackspace.cloudloadbalancers.domain.NodeRequest;
import org.jclouds.rackspace.cloudloadbalancers.features.NodeApi;
import org.jclouds.rackspace.cloudloadbalancers.internal.BaseCloudLoadBalancerApiExpectTest;
import org.testng.annotations.Test;

import com.google.common.collect.ImmutableSet;
import com.google.common.collect.ImmutableSortedSet;

/**
 * @author Everett Toews
 */
@Test(groups = "unit")
public class NodeApiExpectTest extends BaseCloudLoadBalancerApiExpectTest<CloudLoadBalancersApi> {
   public void testListNodes() {
      URI endpoint = URI.create("https://dfw.loadbalancers.api.rackspacecloud.com/v1.0/123123/loadbalancers/2000/nodes");
      NodeApi api = requestsSendResponses(
            rackspaceAuthWithUsernameAndApiKey,
            responseWithAccess, 
            authenticatedGET().endpoint(endpoint).build(),
            HttpResponse.builder().statusCode(200).payload(payloadFromResource("/nodes-list.json")).build()
      ).getNodeApiForZoneAndLoadBalancer("DFW", 2000);

      Set<Node> nodes = api.list().concat().toImmutableSet();
      assertEquals(nodes, testNodes());
   }

   public void testGetNodeInLoadBalancer() {
      URI endpoint = URI.create("https://dfw.loadbalancers.api.rackspacecloud.com/v1.0/123123/loadbalancers/2000/nodes/410");
      NodeApi api = requestsSendResponses(
            rackspaceAuthWithUsernameAndApiKey,
            responseWithAccess, 
            authenticatedGET().endpoint(endpoint).build(),
            HttpResponse.builder().statusCode(200).payload(payloadFromResource("/node-get.json")).build()
      ).getNodeApiForZoneAndLoadBalancer("DFW", 2000);

      Node node = api.get(410);
      assertEquals(node, testNode());
   }

   public void testAddNodesInLoadBalancer() {
      URI endpoint = URI.create("https://dfw.loadbalancers.api.rackspacecloud.com/v1.0/123123/loadbalancers/2000/nodes");
      NodeApi api = requestsSendResponses(
            rackspaceAuthWithUsernameAndApiKey,
            responseWithAccess, 
            authenticatedGET()
                  .method("POST")
                  .payload(payloadFromResourceWithContentType("/nodes-add.json", MediaType.APPLICATION_JSON))
                  .endpoint(endpoint)
                  .build(),
            HttpResponse.builder().statusCode(200).payload(payloadFromResource("/nodes-list.json")).build()
      ).getNodeApiForZoneAndLoadBalancer("DFW", 2000);

      NodeRequest nodeRequest1 = NodeRequest.builder()
            .address("10.1.1.1")
            .condition(NodeRequest.Condition.ENABLED)
            .port(80)
            .weight(3)
            .build();
      
      NodeRequest nodeRequest2 = NodeRequest.builder()
            .address("10.1.1.2")
            .condition(NodeRequest.Condition.ENABLED)
            .port(80)
            .weight(8)
            .build();

      NodeRequest nodeRequest3 = NodeRequest.builder()
            .address("10.1.1.3")
            .condition(NodeRequest.Condition.DISABLED)
            .port(80)
            .weight(12)
            .build();

      Set<NodeRequest> nodeRequests = ImmutableSortedSet.<NodeRequest> of(nodeRequest1, nodeRequest2, nodeRequest3);
      
      Set<Node> nodes = api.add(nodeRequests);
      assertEquals(nodes, testNodes());
   }

   public void testUpdateAttributesForNodeInLoadBalancer() {
      URI endpoint = URI.create("https://dfw.loadbalancers.api.rackspacecloud.com/v1.0/123123/loadbalancers/2000/nodes/410");
      NodeApi api = requestsSendResponses(
            rackspaceAuthWithUsernameAndApiKey,
            responseWithAccess, 
            authenticatedGET().method("PUT").payload(payloadFromResource("/node-update.json")).endpoint(endpoint).build(),
            HttpResponse.builder().statusCode(200).build()
      ).getNodeApiForZoneAndLoadBalancer("DFW", 2000);

      NodeAttributes nodeAttributes = NodeAttributes.Builder
            .condition(NodeRequest.Condition.DISABLED)
            .weight(20);

      api.update(410, nodeAttributes);
   }

   public void testRemoveNodeFromLoadBalancer() {
      URI endpoint = URI.create("https://dfw.loadbalancers.api.rackspacecloud.com/v1.0/123123/loadbalancers/2000/nodes/410");
      NodeApi api = requestsSendResponses(
            rackspaceAuthWithUsernameAndApiKey,
            responseWithAccess, 
            authenticatedGET().method("DELETE").replaceHeader("Accept", MediaType.WILDCARD).endpoint(endpoint).build(),
            HttpResponse.builder().statusCode(200).build()
      ).getNodeApiForZoneAndLoadBalancer("DFW", 2000);

      api.remove(410);
   }

   public void testRemoveNodesFromLoadBalancer() {
      URI endpoint = URI.create("https://dfw.loadbalancers.api.rackspacecloud.com/v1.0/123123/loadbalancers/2000/nodes?id=%5B410%2C%20411%5D");
      NodeApi api = requestsSendResponses(
            rackspaceAuthWithUsernameAndApiKey,
            responseWithAccess, 
            authenticatedGET().method("DELETE").replaceHeader("Accept", MediaType.WILDCARD).endpoint(endpoint).build(),
            HttpResponse.builder().statusCode(200).build()
      ).getNodeApiForZoneAndLoadBalancer("DFW", 2000);
      
      Set<Integer> nodeIds = ImmutableSortedSet.<Integer> of(410, 411);

      api.remove(nodeIds);
   }

   private Set<Node> testNodes() {
      Node node1 = Node.builder()
            .id(410)
            .address("10.1.1.1")
            .port(80)
            .condition(Node.Condition.ENABLED)
            .status(Node.Status.ONLINE)
            .weight(3)
            .build();

      Node node2 = Node.builder()
            .id(411)
            .address("10.1.1.2")
            .port(80)
            .condition(Node.Condition.ENABLED)
            .status(Node.Status.ONLINE)
            .weight(8)
            .build();

      Node node3 = Node.builder()
            .id(412)
            .address("10.1.1.3")
            .port(80)
            .condition(Node.Condition.DISABLED)
            .status(Node.Status.ONLINE)
            .weight(12)
            .build();

      return ImmutableSet.<Node> of(node1, node2, node3);
   }
   
   private Node testNode() {
      return Node.builder()
            .id(410)
            .address("10.1.1.1")
            .port(80)
            .condition(Node.Condition.ENABLED)
            .status(Node.Status.ONLINE)
            .weight(12)
            .build();
   }
}