/*
 * Copyright 2022 Google LLC
 *
 * 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
 *
 *      https://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 com.google.appengine.v1;

import static com.google.appengine.v1.ServicesClient.ListServicesPagedResponse;

import com.google.api.gax.core.NoCredentialsProvider;
import com.google.api.gax.grpc.GaxGrpcProperties;
import com.google.api.gax.grpc.testing.LocalChannelProvider;
import com.google.api.gax.grpc.testing.MockGrpcService;
import com.google.api.gax.grpc.testing.MockServiceHelper;
import com.google.api.gax.rpc.ApiClientHeaderProvider;
import com.google.api.gax.rpc.InvalidArgumentException;
import com.google.api.gax.rpc.StatusCode;
import com.google.common.collect.Lists;
import com.google.longrunning.Operation;
import com.google.protobuf.AbstractMessage;
import com.google.protobuf.Any;
import com.google.protobuf.Empty;
import com.google.protobuf.FieldMask;
import io.grpc.StatusRuntimeException;
import java.io.IOException;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.UUID;
import java.util.concurrent.ExecutionException;
import javax.annotation.Generated;
import org.junit.After;
import org.junit.AfterClass;
import org.junit.Assert;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;

@Generated("by gapic-generator-java")
public class ServicesClientTest {
  private static MockServiceHelper mockServiceHelper;
  private static MockServices mockServices;
  private LocalChannelProvider channelProvider;
  private ServicesClient client;

  @BeforeClass
  public static void startStaticServer() {
    mockServices = new MockServices();
    mockServiceHelper =
        new MockServiceHelper(
            UUID.randomUUID().toString(), Arrays.<MockGrpcService>asList(mockServices));
    mockServiceHelper.start();
  }

  @AfterClass
  public static void stopServer() {
    mockServiceHelper.stop();
  }

  @Before
  public void setUp() throws IOException {
    mockServiceHelper.reset();
    channelProvider = mockServiceHelper.createChannelProvider();
    ServicesSettings settings =
        ServicesSettings.newBuilder()
            .setTransportChannelProvider(channelProvider)
            .setCredentialsProvider(NoCredentialsProvider.create())
            .build();
    client = ServicesClient.create(settings);
  }

  @After
  public void tearDown() throws Exception {
    client.close();
  }

  @Test
  public void listServicesTest() throws Exception {
    Service responsesElement = Service.newBuilder().build();
    ListServicesResponse expectedResponse =
        ListServicesResponse.newBuilder()
            .setNextPageToken("")
            .addAllServices(Arrays.asList(responsesElement))
            .build();
    mockServices.addResponse(expectedResponse);

    ListServicesRequest request =
        ListServicesRequest.newBuilder()
            .setParent("parent-995424086")
            .setPageSize(883849137)
            .setPageToken("pageToken873572522")
            .build();

    ListServicesPagedResponse pagedListResponse = client.listServices(request);

    List<Service> resources = Lists.newArrayList(pagedListResponse.iterateAll());

    Assert.assertEquals(1, resources.size());
    Assert.assertEquals(expectedResponse.getServicesList().get(0), resources.get(0));

    List<AbstractMessage> actualRequests = mockServices.getRequests();
    Assert.assertEquals(1, actualRequests.size());
    ListServicesRequest actualRequest = ((ListServicesRequest) actualRequests.get(0));

    Assert.assertEquals(request.getParent(), actualRequest.getParent());
    Assert.assertEquals(request.getPageSize(), actualRequest.getPageSize());
    Assert.assertEquals(request.getPageToken(), actualRequest.getPageToken());
    Assert.assertTrue(
        channelProvider.isHeaderSent(
            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
  }

  @Test
  public void listServicesExceptionTest() throws Exception {
    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
    mockServices.addException(exception);

    try {
      ListServicesRequest request =
          ListServicesRequest.newBuilder()
              .setParent("parent-995424086")
              .setPageSize(883849137)
              .setPageToken("pageToken873572522")
              .build();
      client.listServices(request);
      Assert.fail("No exception raised");
    } catch (InvalidArgumentException e) {
      // Expected exception.
    }
  }

  @Test
  public void getServiceTest() throws Exception {
    Service expectedResponse =
        Service.newBuilder()
            .setName("name3373707")
            .setId("id3355")
            .setSplit(TrafficSplit.newBuilder().build())
            .putAllLabels(new HashMap<String, String>())
            .setNetworkSettings(NetworkSettings.newBuilder().build())
            .build();
    mockServices.addResponse(expectedResponse);

    GetServiceRequest request = GetServiceRequest.newBuilder().setName("name3373707").build();

    Service actualResponse = client.getService(request);
    Assert.assertEquals(expectedResponse, actualResponse);

    List<AbstractMessage> actualRequests = mockServices.getRequests();
    Assert.assertEquals(1, actualRequests.size());
    GetServiceRequest actualRequest = ((GetServiceRequest) actualRequests.get(0));

    Assert.assertEquals(request.getName(), actualRequest.getName());
    Assert.assertTrue(
        channelProvider.isHeaderSent(
            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
  }

  @Test
  public void getServiceExceptionTest() throws Exception {
    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
    mockServices.addException(exception);

    try {
      GetServiceRequest request = GetServiceRequest.newBuilder().setName("name3373707").build();
      client.getService(request);
      Assert.fail("No exception raised");
    } catch (InvalidArgumentException e) {
      // Expected exception.
    }
  }

  @Test
  public void updateServiceTest() throws Exception {
    Service expectedResponse =
        Service.newBuilder()
            .setName("name3373707")
            .setId("id3355")
            .setSplit(TrafficSplit.newBuilder().build())
            .putAllLabels(new HashMap<String, String>())
            .setNetworkSettings(NetworkSettings.newBuilder().build())
            .build();
    Operation resultOperation =
        Operation.newBuilder()
            .setName("updateServiceTest")
            .setDone(true)
            .setResponse(Any.pack(expectedResponse))
            .build();
    mockServices.addResponse(resultOperation);

    UpdateServiceRequest request =
        UpdateServiceRequest.newBuilder()
            .setName("name3373707")
            .setService(Service.newBuilder().build())
            .setUpdateMask(FieldMask.newBuilder().build())
            .setMigrateTraffic(true)
            .build();

    Service actualResponse = client.updateServiceAsync(request).get();
    Assert.assertEquals(expectedResponse, actualResponse);

    List<AbstractMessage> actualRequests = mockServices.getRequests();
    Assert.assertEquals(1, actualRequests.size());
    UpdateServiceRequest actualRequest = ((UpdateServiceRequest) actualRequests.get(0));

    Assert.assertEquals(request.getName(), actualRequest.getName());
    Assert.assertEquals(request.getService(), actualRequest.getService());
    Assert.assertEquals(request.getUpdateMask(), actualRequest.getUpdateMask());
    Assert.assertEquals(request.getMigrateTraffic(), actualRequest.getMigrateTraffic());
    Assert.assertTrue(
        channelProvider.isHeaderSent(
            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
  }

  @Test
  public void updateServiceExceptionTest() throws Exception {
    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
    mockServices.addException(exception);

    try {
      UpdateServiceRequest request =
          UpdateServiceRequest.newBuilder()
              .setName("name3373707")
              .setService(Service.newBuilder().build())
              .setUpdateMask(FieldMask.newBuilder().build())
              .setMigrateTraffic(true)
              .build();
      client.updateServiceAsync(request).get();
      Assert.fail("No exception raised");
    } catch (ExecutionException e) {
      Assert.assertEquals(InvalidArgumentException.class, e.getCause().getClass());
      InvalidArgumentException apiException = ((InvalidArgumentException) e.getCause());
      Assert.assertEquals(StatusCode.Code.INVALID_ARGUMENT, apiException.getStatusCode().getCode());
    }
  }

  @Test
  public void deleteServiceTest() throws Exception {
    Empty expectedResponse = Empty.newBuilder().build();
    Operation resultOperation =
        Operation.newBuilder()
            .setName("deleteServiceTest")
            .setDone(true)
            .setResponse(Any.pack(expectedResponse))
            .build();
    mockServices.addResponse(resultOperation);

    DeleteServiceRequest request = DeleteServiceRequest.newBuilder().setName("name3373707").build();

    client.deleteServiceAsync(request).get();

    List<AbstractMessage> actualRequests = mockServices.getRequests();
    Assert.assertEquals(1, actualRequests.size());
    DeleteServiceRequest actualRequest = ((DeleteServiceRequest) actualRequests.get(0));

    Assert.assertEquals(request.getName(), actualRequest.getName());
    Assert.assertTrue(
        channelProvider.isHeaderSent(
            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
  }

  @Test
  public void deleteServiceExceptionTest() throws Exception {
    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
    mockServices.addException(exception);

    try {
      DeleteServiceRequest request =
          DeleteServiceRequest.newBuilder().setName("name3373707").build();
      client.deleteServiceAsync(request).get();
      Assert.fail("No exception raised");
    } catch (ExecutionException e) {
      Assert.assertEquals(InvalidArgumentException.class, e.getCause().getClass());
      InvalidArgumentException apiException = ((InvalidArgumentException) e.getCause());
      Assert.assertEquals(StatusCode.Code.INVALID_ARGUMENT, apiException.getStatusCode().getCode());
    }
  }
}