/*
 * 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 service_test

import (
	pb "github.com/apache/servicecomb-service-center/server/core/proto"
	"github.com/apache/servicecomb-service-center/server/service"
	. "github.com/onsi/ginkgo"
	. "github.com/onsi/gomega"
	"golang.org/x/net/context"
	"google.golang.org/grpc"
	"testing"
)

type grpcWatchServer struct {
	grpc.ServerStream
}

func (x *grpcWatchServer) Send(m *pb.WatchInstanceResponse) error {
	return nil
}

func (x *grpcWatchServer) Context() context.Context {
	return getContext()
}

func TestInstanceService_WebSocketWatch(t *testing.T) {
	defer func() {
		recover()
	}()
	instanceResource.WebSocketWatch(context.Background(), &pb.WatchInstanceRequest{}, nil)
}

func TestInstanceService_WebSocketListAndWatch(t *testing.T) {
	defer func() {
		recover()
	}()
	instanceResource.WebSocketListAndWatch(context.Background(), &pb.WatchInstanceRequest{}, nil)
}

var _ = Describe("'Instance' service", func() {
	Describe("execute 'watch' operartion", func() {
		var (
			serviceId string
		)

		It("should be passed", func() {
			respCreate, err := serviceResource.Create(getContext(), &pb.CreateServiceRequest{
				Service: &pb.MicroService{
					ServiceName: "service_name_watch",
					AppId:       "service_name_watch",
					Version:     "1.0.0",
					Level:       "BACK",
					Status:      pb.MS_UP,
				},
			})
			Expect(err).To(BeNil())
			Expect(respCreate.Response.Code).To(Equal(pb.Response_SUCCESS))
			serviceId = respCreate.ServiceId
		})

		Context("when request is invalid", func() {
			It("should be failed", func() {
				By("service does not exist")
				IC := instanceResource.(*service.InstanceService)
				err := IC.WatchPreOpera(getContext(), &pb.WatchInstanceRequest{
					SelfServiceId: "-1",
				})
				Expect(err).NotTo(BeNil())

				err = IC.Watch(&pb.WatchInstanceRequest{
					SelfServiceId: "-1",
				}, &grpcWatchServer{})
				Expect(err).NotTo(BeNil())

				By("service id is empty")
				err = instanceResource.(*service.InstanceService).WatchPreOpera(getContext(), &pb.WatchInstanceRequest{
					SelfServiceId: "",
				})
				Expect(err).NotTo(BeNil())

				By("request is valid")
				err = instanceResource.(*service.InstanceService).WatchPreOpera(getContext(),
					&pb.WatchInstanceRequest{
						SelfServiceId: serviceId,
					})
				Expect(err).To(BeNil())
			})
		})
	})
})