/*
 * 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.cloud.datafusion.v1beta1;

import com.google.api.core.BetaApi;
import com.google.cloud.datafusion.v1beta1.DataFusionGrpc.DataFusionImplBase;
import com.google.longrunning.Operation;
import com.google.protobuf.AbstractMessage;
import io.grpc.stub.StreamObserver;
import java.util.ArrayList;
import java.util.LinkedList;
import java.util.List;
import java.util.Queue;
import javax.annotation.Generated;

@BetaApi
@Generated("by gapic-generator-java")
public class MockDataFusionImpl extends DataFusionImplBase {
  private List<AbstractMessage> requests;
  private Queue<Object> responses;

  public MockDataFusionImpl() {
    requests = new ArrayList<>();
    responses = new LinkedList<>();
  }

  public List<AbstractMessage> getRequests() {
    return requests;
  }

  public void addResponse(AbstractMessage response) {
    responses.add(response);
  }

  public void setResponses(List<AbstractMessage> responses) {
    this.responses = new LinkedList<Object>(responses);
  }

  public void addException(Exception exception) {
    responses.add(exception);
  }

  public void reset() {
    requests = new ArrayList<>();
    responses = new LinkedList<>();
  }

  @Override
  public void listAvailableVersions(
      ListAvailableVersionsRequest request,
      StreamObserver<ListAvailableVersionsResponse> responseObserver) {
    Object response = responses.poll();
    if (response instanceof ListAvailableVersionsResponse) {
      requests.add(request);
      responseObserver.onNext(((ListAvailableVersionsResponse) response));
      responseObserver.onCompleted();
    } else if (response instanceof Exception) {
      responseObserver.onError(((Exception) response));
    } else {
      responseObserver.onError(
          new IllegalArgumentException(
              String.format(
                  "Unrecognized response type %s for method ListAvailableVersions, expected %s or %s",
                  response == null ? "null" : response.getClass().getName(),
                  ListAvailableVersionsResponse.class.getName(),
                  Exception.class.getName())));
    }
  }

  @Override
  public void listInstances(
      ListInstancesRequest request, StreamObserver<ListInstancesResponse> responseObserver) {
    Object response = responses.poll();
    if (response instanceof ListInstancesResponse) {
      requests.add(request);
      responseObserver.onNext(((ListInstancesResponse) response));
      responseObserver.onCompleted();
    } else if (response instanceof Exception) {
      responseObserver.onError(((Exception) response));
    } else {
      responseObserver.onError(
          new IllegalArgumentException(
              String.format(
                  "Unrecognized response type %s for method ListInstances, expected %s or %s",
                  response == null ? "null" : response.getClass().getName(),
                  ListInstancesResponse.class.getName(),
                  Exception.class.getName())));
    }
  }

  @Override
  public void getInstance(GetInstanceRequest request, StreamObserver<Instance> responseObserver) {
    Object response = responses.poll();
    if (response instanceof Instance) {
      requests.add(request);
      responseObserver.onNext(((Instance) response));
      responseObserver.onCompleted();
    } else if (response instanceof Exception) {
      responseObserver.onError(((Exception) response));
    } else {
      responseObserver.onError(
          new IllegalArgumentException(
              String.format(
                  "Unrecognized response type %s for method GetInstance, expected %s or %s",
                  response == null ? "null" : response.getClass().getName(),
                  Instance.class.getName(),
                  Exception.class.getName())));
    }
  }

  @Override
  public void createInstance(
      CreateInstanceRequest request, StreamObserver<Operation> responseObserver) {
    Object response = responses.poll();
    if (response instanceof Operation) {
      requests.add(request);
      responseObserver.onNext(((Operation) response));
      responseObserver.onCompleted();
    } else if (response instanceof Exception) {
      responseObserver.onError(((Exception) response));
    } else {
      responseObserver.onError(
          new IllegalArgumentException(
              String.format(
                  "Unrecognized response type %s for method CreateInstance, expected %s or %s",
                  response == null ? "null" : response.getClass().getName(),
                  Operation.class.getName(),
                  Exception.class.getName())));
    }
  }

  @Override
  public void deleteInstance(
      DeleteInstanceRequest request, StreamObserver<Operation> responseObserver) {
    Object response = responses.poll();
    if (response instanceof Operation) {
      requests.add(request);
      responseObserver.onNext(((Operation) response));
      responseObserver.onCompleted();
    } else if (response instanceof Exception) {
      responseObserver.onError(((Exception) response));
    } else {
      responseObserver.onError(
          new IllegalArgumentException(
              String.format(
                  "Unrecognized response type %s for method DeleteInstance, expected %s or %s",
                  response == null ? "null" : response.getClass().getName(),
                  Operation.class.getName(),
                  Exception.class.getName())));
    }
  }

  @Override
  public void updateInstance(
      UpdateInstanceRequest request, StreamObserver<Operation> responseObserver) {
    Object response = responses.poll();
    if (response instanceof Operation) {
      requests.add(request);
      responseObserver.onNext(((Operation) response));
      responseObserver.onCompleted();
    } else if (response instanceof Exception) {
      responseObserver.onError(((Exception) response));
    } else {
      responseObserver.onError(
          new IllegalArgumentException(
              String.format(
                  "Unrecognized response type %s for method UpdateInstance, expected %s or %s",
                  response == null ? "null" : response.getClass().getName(),
                  Operation.class.getName(),
                  Exception.class.getName())));
    }
  }

  @Override
  public void restartInstance(
      RestartInstanceRequest request, StreamObserver<Operation> responseObserver) {
    Object response = responses.poll();
    if (response instanceof Operation) {
      requests.add(request);
      responseObserver.onNext(((Operation) response));
      responseObserver.onCompleted();
    } else if (response instanceof Exception) {
      responseObserver.onError(((Exception) response));
    } else {
      responseObserver.onError(
          new IllegalArgumentException(
              String.format(
                  "Unrecognized response type %s for method RestartInstance, expected %s or %s",
                  response == null ? "null" : response.getClass().getName(),
                  Operation.class.getName(),
                  Exception.class.getName())));
    }
  }

  @Override
  public void upgradeInstance(
      UpgradeInstanceRequest request, StreamObserver<Operation> responseObserver) {
    Object response = responses.poll();
    if (response instanceof Operation) {
      requests.add(request);
      responseObserver.onNext(((Operation) response));
      responseObserver.onCompleted();
    } else if (response instanceof Exception) {
      responseObserver.onError(((Exception) response));
    } else {
      responseObserver.onError(
          new IllegalArgumentException(
              String.format(
                  "Unrecognized response type %s for method UpgradeInstance, expected %s or %s",
                  response == null ? "null" : response.getClass().getName(),
                  Operation.class.getName(),
                  Exception.class.getName())));
    }
  }

  @Override
  public void removeIamPolicy(
      RemoveIamPolicyRequest request, StreamObserver<RemoveIamPolicyResponse> responseObserver) {
    Object response = responses.poll();
    if (response instanceof RemoveIamPolicyResponse) {
      requests.add(request);
      responseObserver.onNext(((RemoveIamPolicyResponse) response));
      responseObserver.onCompleted();
    } else if (response instanceof Exception) {
      responseObserver.onError(((Exception) response));
    } else {
      responseObserver.onError(
          new IllegalArgumentException(
              String.format(
                  "Unrecognized response type %s for method RemoveIamPolicy, expected %s or %s",
                  response == null ? "null" : response.getClass().getName(),
                  RemoveIamPolicyResponse.class.getName(),
                  Exception.class.getName())));
    }
  }

  @Override
  public void listNamespaces(
      ListNamespacesRequest request, StreamObserver<ListNamespacesResponse> responseObserver) {
    Object response = responses.poll();
    if (response instanceof ListNamespacesResponse) {
      requests.add(request);
      responseObserver.onNext(((ListNamespacesResponse) response));
      responseObserver.onCompleted();
    } else if (response instanceof Exception) {
      responseObserver.onError(((Exception) response));
    } else {
      responseObserver.onError(
          new IllegalArgumentException(
              String.format(
                  "Unrecognized response type %s for method ListNamespaces, expected %s or %s",
                  response == null ? "null" : response.getClass().getName(),
                  ListNamespacesResponse.class.getName(),
                  Exception.class.getName())));
    }
  }

  @Override
  public void addDnsPeering(
      AddDnsPeeringRequest request, StreamObserver<AddDnsPeeringResponse> responseObserver) {
    Object response = responses.poll();
    if (response instanceof AddDnsPeeringResponse) {
      requests.add(request);
      responseObserver.onNext(((AddDnsPeeringResponse) response));
      responseObserver.onCompleted();
    } else if (response instanceof Exception) {
      responseObserver.onError(((Exception) response));
    } else {
      responseObserver.onError(
          new IllegalArgumentException(
              String.format(
                  "Unrecognized response type %s for method AddDnsPeering, expected %s or %s",
                  response == null ? "null" : response.getClass().getName(),
                  AddDnsPeeringResponse.class.getName(),
                  Exception.class.getName())));
    }
  }

  @Override
  public void removeDnsPeering(
      RemoveDnsPeeringRequest request, StreamObserver<RemoveDnsPeeringResponse> responseObserver) {
    Object response = responses.poll();
    if (response instanceof RemoveDnsPeeringResponse) {
      requests.add(request);
      responseObserver.onNext(((RemoveDnsPeeringResponse) response));
      responseObserver.onCompleted();
    } else if (response instanceof Exception) {
      responseObserver.onError(((Exception) response));
    } else {
      responseObserver.onError(
          new IllegalArgumentException(
              String.format(
                  "Unrecognized response type %s for method RemoveDnsPeering, expected %s or %s",
                  response == null ? "null" : response.getClass().getName(),
                  RemoveDnsPeeringResponse.class.getName(),
                  Exception.class.getName())));
    }
  }

  @Override
  public void listDnsPeerings(
      ListDnsPeeringsRequest request, StreamObserver<ListDnsPeeringsResponse> responseObserver) {
    Object response = responses.poll();
    if (response instanceof ListDnsPeeringsResponse) {
      requests.add(request);
      responseObserver.onNext(((ListDnsPeeringsResponse) response));
      responseObserver.onCompleted();
    } else if (response instanceof Exception) {
      responseObserver.onError(((Exception) response));
    } else {
      responseObserver.onError(
          new IllegalArgumentException(
              String.format(
                  "Unrecognized response type %s for method ListDnsPeerings, expected %s or %s",
                  response == null ? "null" : response.getClass().getName(),
                  ListDnsPeeringsResponse.class.getName(),
                  Exception.class.getName())));
    }
  }
}