package datamigration

// Copyright (c) Microsoft and contributors.  All rights reserved.
//
// 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.
//
// Code generated by Microsoft (R) AutoRest Code Generator.
// Changes may cause incorrect behavior and will be lost if the code is regenerated.

import (
	"context"
	"github.com/Azure/go-autorest/autorest"
	"github.com/Azure/go-autorest/autorest/azure"
	"github.com/Azure/go-autorest/autorest/validation"
	"github.com/Azure/go-autorest/tracing"
	"net/http"
)

// ServicesClient is the data Migration Client
type ServicesClient struct {
	BaseClient
}

// NewServicesClient creates an instance of the ServicesClient client.
func NewServicesClient(subscriptionID string) ServicesClient {
	return NewServicesClientWithBaseURI(DefaultBaseURI, subscriptionID)
}

// NewServicesClientWithBaseURI creates an instance of the ServicesClient client using a custom endpoint.  Use this
// when interacting with an Azure cloud that uses a non-standard base URI (sovereign clouds, Azure stack).
func NewServicesClientWithBaseURI(baseURI string, subscriptionID string) ServicesClient {
	return ServicesClient{NewWithBaseURI(baseURI, subscriptionID)}
}

// CheckChildrenNameAvailability this method checks whether a proposed nested resource name is valid and available.
// Parameters:
// groupName - name of the resource group
// serviceName - name of the service
// parameters - requested name to validate
func (client ServicesClient) CheckChildrenNameAvailability(ctx context.Context, groupName string, serviceName string, parameters NameAvailabilityRequest) (result NameAvailabilityResponse, err error) {
	if tracing.IsEnabled() {
		ctx = tracing.StartSpan(ctx, fqdn+"/ServicesClient.CheckChildrenNameAvailability")
		defer func() {
			sc := -1
			if result.Response.Response != nil {
				sc = result.Response.Response.StatusCode
			}
			tracing.EndSpan(ctx, sc, err)
		}()
	}
	req, err := client.CheckChildrenNameAvailabilityPreparer(ctx, groupName, serviceName, parameters)
	if err != nil {
		err = autorest.NewErrorWithError(err, "datamigration.ServicesClient", "CheckChildrenNameAvailability", nil, "Failure preparing request")
		return
	}

	resp, err := client.CheckChildrenNameAvailabilitySender(req)
	if err != nil {
		result.Response = autorest.Response{Response: resp}
		err = autorest.NewErrorWithError(err, "datamigration.ServicesClient", "CheckChildrenNameAvailability", resp, "Failure sending request")
		return
	}

	result, err = client.CheckChildrenNameAvailabilityResponder(resp)
	if err != nil {
		err = autorest.NewErrorWithError(err, "datamigration.ServicesClient", "CheckChildrenNameAvailability", resp, "Failure responding to request")
		return
	}

	return
}

// CheckChildrenNameAvailabilityPreparer prepares the CheckChildrenNameAvailability request.
func (client ServicesClient) CheckChildrenNameAvailabilityPreparer(ctx context.Context, groupName string, serviceName string, parameters NameAvailabilityRequest) (*http.Request, error) {
	pathParameters := map[string]interface{}{
		"groupName":      autorest.Encode("path", groupName),
		"serviceName":    autorest.Encode("path", serviceName),
		"subscriptionId": autorest.Encode("path", client.SubscriptionID),
	}

	const APIVersion = "2017-11-15-preview"
	queryParameters := map[string]interface{}{
		"api-version": APIVersion,
	}

	preparer := autorest.CreatePreparer(
		autorest.AsContentType("application/json; charset=utf-8"),
		autorest.AsPost(),
		autorest.WithBaseURL(client.BaseURI),
		autorest.WithPathParameters("/subscriptions/{subscriptionId}/resourceGroups/{groupName}/providers/Microsoft.DataMigration/services/{serviceName}/checkNameAvailability", pathParameters),
		autorest.WithJSON(parameters),
		autorest.WithQueryParameters(queryParameters))
	return preparer.Prepare((&http.Request{}).WithContext(ctx))
}

// CheckChildrenNameAvailabilitySender sends the CheckChildrenNameAvailability request. The method will close the
// http.Response Body if it receives an error.
func (client ServicesClient) CheckChildrenNameAvailabilitySender(req *http.Request) (*http.Response, error) {
	return client.Send(req, azure.DoRetryWithRegistration(client.Client))
}

// CheckChildrenNameAvailabilityResponder handles the response to the CheckChildrenNameAvailability request. The method always
// closes the http.Response Body.
func (client ServicesClient) CheckChildrenNameAvailabilityResponder(resp *http.Response) (result NameAvailabilityResponse, err error) {
	err = autorest.Respond(
		resp,
		azure.WithErrorUnlessStatusCode(http.StatusOK),
		autorest.ByUnmarshallingJSON(&result),
		autorest.ByClosing())
	result.Response = autorest.Response{Response: resp}
	return
}

// CheckNameAvailability this method checks whether a proposed top-level resource name is valid and available.
// Parameters:
// location - the Azure region of the operation
// parameters - requested name to validate
func (client ServicesClient) CheckNameAvailability(ctx context.Context, location string, parameters NameAvailabilityRequest) (result NameAvailabilityResponse, err error) {
	if tracing.IsEnabled() {
		ctx = tracing.StartSpan(ctx, fqdn+"/ServicesClient.CheckNameAvailability")
		defer func() {
			sc := -1
			if result.Response.Response != nil {
				sc = result.Response.Response.StatusCode
			}
			tracing.EndSpan(ctx, sc, err)
		}()
	}
	req, err := client.CheckNameAvailabilityPreparer(ctx, location, parameters)
	if err != nil {
		err = autorest.NewErrorWithError(err, "datamigration.ServicesClient", "CheckNameAvailability", nil, "Failure preparing request")
		return
	}

	resp, err := client.CheckNameAvailabilitySender(req)
	if err != nil {
		result.Response = autorest.Response{Response: resp}
		err = autorest.NewErrorWithError(err, "datamigration.ServicesClient", "CheckNameAvailability", resp, "Failure sending request")
		return
	}

	result, err = client.CheckNameAvailabilityResponder(resp)
	if err != nil {
		err = autorest.NewErrorWithError(err, "datamigration.ServicesClient", "CheckNameAvailability", resp, "Failure responding to request")
		return
	}

	return
}

// CheckNameAvailabilityPreparer prepares the CheckNameAvailability request.
func (client ServicesClient) CheckNameAvailabilityPreparer(ctx context.Context, location string, parameters NameAvailabilityRequest) (*http.Request, error) {
	pathParameters := map[string]interface{}{
		"location":       autorest.Encode("path", location),
		"subscriptionId": autorest.Encode("path", client.SubscriptionID),
	}

	const APIVersion = "2017-11-15-preview"
	queryParameters := map[string]interface{}{
		"api-version": APIVersion,
	}

	preparer := autorest.CreatePreparer(
		autorest.AsContentType("application/json; charset=utf-8"),
		autorest.AsPost(),
		autorest.WithBaseURL(client.BaseURI),
		autorest.WithPathParameters("/subscriptions/{subscriptionId}/providers/Microsoft.DataMigration/locations/{location}/checkNameAvailability", pathParameters),
		autorest.WithJSON(parameters),
		autorest.WithQueryParameters(queryParameters))
	return preparer.Prepare((&http.Request{}).WithContext(ctx))
}

// CheckNameAvailabilitySender sends the CheckNameAvailability request. The method will close the
// http.Response Body if it receives an error.
func (client ServicesClient) CheckNameAvailabilitySender(req *http.Request) (*http.Response, error) {
	return client.Send(req, azure.DoRetryWithRegistration(client.Client))
}

// CheckNameAvailabilityResponder handles the response to the CheckNameAvailability request. The method always
// closes the http.Response Body.
func (client ServicesClient) CheckNameAvailabilityResponder(resp *http.Response) (result NameAvailabilityResponse, err error) {
	err = autorest.Respond(
		resp,
		azure.WithErrorUnlessStatusCode(http.StatusOK),
		autorest.ByUnmarshallingJSON(&result),
		autorest.ByClosing())
	result.Response = autorest.Response{Response: resp}
	return
}

// CheckStatus the services resource is the top-level resource that represents the Data Migration Service. This action
// performs a health check and returns the status of the service and virtual machine size.
// Parameters:
// groupName - name of the resource group
// serviceName - name of the service
func (client ServicesClient) CheckStatus(ctx context.Context, groupName string, serviceName string) (result ServiceStatusResponse, err error) {
	if tracing.IsEnabled() {
		ctx = tracing.StartSpan(ctx, fqdn+"/ServicesClient.CheckStatus")
		defer func() {
			sc := -1
			if result.Response.Response != nil {
				sc = result.Response.Response.StatusCode
			}
			tracing.EndSpan(ctx, sc, err)
		}()
	}
	req, err := client.CheckStatusPreparer(ctx, groupName, serviceName)
	if err != nil {
		err = autorest.NewErrorWithError(err, "datamigration.ServicesClient", "CheckStatus", nil, "Failure preparing request")
		return
	}

	resp, err := client.CheckStatusSender(req)
	if err != nil {
		result.Response = autorest.Response{Response: resp}
		err = autorest.NewErrorWithError(err, "datamigration.ServicesClient", "CheckStatus", resp, "Failure sending request")
		return
	}

	result, err = client.CheckStatusResponder(resp)
	if err != nil {
		err = autorest.NewErrorWithError(err, "datamigration.ServicesClient", "CheckStatus", resp, "Failure responding to request")
		return
	}

	return
}

// CheckStatusPreparer prepares the CheckStatus request.
func (client ServicesClient) CheckStatusPreparer(ctx context.Context, groupName string, serviceName string) (*http.Request, error) {
	pathParameters := map[string]interface{}{
		"groupName":      autorest.Encode("path", groupName),
		"serviceName":    autorest.Encode("path", serviceName),
		"subscriptionId": autorest.Encode("path", client.SubscriptionID),
	}

	const APIVersion = "2017-11-15-preview"
	queryParameters := map[string]interface{}{
		"api-version": APIVersion,
	}

	preparer := autorest.CreatePreparer(
		autorest.AsPost(),
		autorest.WithBaseURL(client.BaseURI),
		autorest.WithPathParameters("/subscriptions/{subscriptionId}/resourceGroups/{groupName}/providers/Microsoft.DataMigration/services/{serviceName}/checkStatus", pathParameters),
		autorest.WithQueryParameters(queryParameters))
	return preparer.Prepare((&http.Request{}).WithContext(ctx))
}

// CheckStatusSender sends the CheckStatus request. The method will close the
// http.Response Body if it receives an error.
func (client ServicesClient) CheckStatusSender(req *http.Request) (*http.Response, error) {
	return client.Send(req, azure.DoRetryWithRegistration(client.Client))
}

// CheckStatusResponder handles the response to the CheckStatus request. The method always
// closes the http.Response Body.
func (client ServicesClient) CheckStatusResponder(resp *http.Response) (result ServiceStatusResponse, err error) {
	err = autorest.Respond(
		resp,
		azure.WithErrorUnlessStatusCode(http.StatusOK),
		autorest.ByUnmarshallingJSON(&result),
		autorest.ByClosing())
	result.Response = autorest.Response{Response: resp}
	return
}

// CreateOrUpdate the services resource is the top-level resource that represents the Data Migration Service. The PUT
// method creates a new service or updates an existing one. When a service is updated, existing child resources (i.e.
// tasks) are unaffected. Services currently support a single kind, "vm", which refers to a VM-based service, although
// other kinds may be added in the future. This method can change the kind, SKU, and network of the service, but if
// tasks are currently running (i.e. the service is busy), this will fail with 400 Bad Request ("ServiceIsBusy"). The
// provider will reply when successful with 200 OK or 201 Created. Long-running operations use the provisioningState
// property.
// Parameters:
// parameters - information about the service
// groupName - name of the resource group
// serviceName - name of the service
func (client ServicesClient) CreateOrUpdate(ctx context.Context, parameters Service, groupName string, serviceName string) (result ServicesCreateOrUpdateFuture, err error) {
	if tracing.IsEnabled() {
		ctx = tracing.StartSpan(ctx, fqdn+"/ServicesClient.CreateOrUpdate")
		defer func() {
			sc := -1
			if result.FutureAPI != nil && result.FutureAPI.Response() != nil {
				sc = result.FutureAPI.Response().StatusCode
			}
			tracing.EndSpan(ctx, sc, err)
		}()
	}
	if err := validation.Validate([]validation.Validation{
		{TargetValue: parameters,
			Constraints: []validation.Constraint{{Target: "parameters.ServiceProperties", Name: validation.Null, Rule: false,
				Chain: []validation.Constraint{{Target: "parameters.ServiceProperties.VirtualSubnetID", Name: validation.Null, Rule: true, Chain: nil}}}}}}); err != nil {
		return result, validation.NewError("datamigration.ServicesClient", "CreateOrUpdate", err.Error())
	}

	req, err := client.CreateOrUpdatePreparer(ctx, parameters, groupName, serviceName)
	if err != nil {
		err = autorest.NewErrorWithError(err, "datamigration.ServicesClient", "CreateOrUpdate", nil, "Failure preparing request")
		return
	}

	result, err = client.CreateOrUpdateSender(req)
	if err != nil {
		err = autorest.NewErrorWithError(err, "datamigration.ServicesClient", "CreateOrUpdate", nil, "Failure sending request")
		return
	}

	return
}

// CreateOrUpdatePreparer prepares the CreateOrUpdate request.
func (client ServicesClient) CreateOrUpdatePreparer(ctx context.Context, parameters Service, groupName string, serviceName string) (*http.Request, error) {
	pathParameters := map[string]interface{}{
		"groupName":      autorest.Encode("path", groupName),
		"serviceName":    autorest.Encode("path", serviceName),
		"subscriptionId": autorest.Encode("path", client.SubscriptionID),
	}

	const APIVersion = "2017-11-15-preview"
	queryParameters := map[string]interface{}{
		"api-version": APIVersion,
	}

	preparer := autorest.CreatePreparer(
		autorest.AsContentType("application/json; charset=utf-8"),
		autorest.AsPut(),
		autorest.WithBaseURL(client.BaseURI),
		autorest.WithPathParameters("/subscriptions/{subscriptionId}/resourceGroups/{groupName}/providers/Microsoft.DataMigration/services/{serviceName}", pathParameters),
		autorest.WithJSON(parameters),
		autorest.WithQueryParameters(queryParameters))
	return preparer.Prepare((&http.Request{}).WithContext(ctx))
}

// CreateOrUpdateSender sends the CreateOrUpdate request. The method will close the
// http.Response Body if it receives an error.
func (client ServicesClient) CreateOrUpdateSender(req *http.Request) (future ServicesCreateOrUpdateFuture, err error) {
	var resp *http.Response
	resp, err = client.Send(req, azure.DoRetryWithRegistration(client.Client))
	if err != nil {
		return
	}
	var azf azure.Future
	azf, err = azure.NewFutureFromResponse(resp)
	future.FutureAPI = &azf
	future.Result = func(client ServicesClient) (s Service, err error) {
		var done bool
		done, err = future.DoneWithContext(context.Background(), client)
		if err != nil {
			err = autorest.NewErrorWithError(err, "datamigration.ServicesCreateOrUpdateFuture", "Result", future.Response(), "Polling failure")
			return
		}
		if !done {
			err = azure.NewAsyncOpIncompleteError("datamigration.ServicesCreateOrUpdateFuture")
			return
		}
		sender := autorest.DecorateSender(client, autorest.DoRetryForStatusCodes(client.RetryAttempts, client.RetryDuration, autorest.StatusCodesForRetry...))
		s.Response.Response, err = future.GetResult(sender)
		if s.Response.Response == nil && err == nil {
			err = autorest.NewErrorWithError(err, "datamigration.ServicesCreateOrUpdateFuture", "Result", nil, "received nil response and error")
		}
		if err == nil && s.Response.Response.StatusCode != http.StatusNoContent {
			s, err = client.CreateOrUpdateResponder(s.Response.Response)
			if err != nil {
				err = autorest.NewErrorWithError(err, "datamigration.ServicesCreateOrUpdateFuture", "Result", s.Response.Response, "Failure responding to request")
			}
		}
		return
	}
	return
}

// CreateOrUpdateResponder handles the response to the CreateOrUpdate request. The method always
// closes the http.Response Body.
func (client ServicesClient) CreateOrUpdateResponder(resp *http.Response) (result Service, err error) {
	err = autorest.Respond(
		resp,
		azure.WithErrorUnlessStatusCode(http.StatusOK, http.StatusCreated, http.StatusAccepted),
		autorest.ByUnmarshallingJSON(&result),
		autorest.ByClosing())
	result.Response = autorest.Response{Response: resp}
	return
}

// Delete the services resource is the top-level resource that represents the Data Migration Service. The DELETE method
// deletes a service. Any running tasks will be canceled.
// Parameters:
// groupName - name of the resource group
// serviceName - name of the service
// deleteRunningTasks - delete the resource even if it contains running tasks
func (client ServicesClient) Delete(ctx context.Context, groupName string, serviceName string, deleteRunningTasks *bool) (result ServicesDeleteFuture, err error) {
	if tracing.IsEnabled() {
		ctx = tracing.StartSpan(ctx, fqdn+"/ServicesClient.Delete")
		defer func() {
			sc := -1
			if result.FutureAPI != nil && result.FutureAPI.Response() != nil {
				sc = result.FutureAPI.Response().StatusCode
			}
			tracing.EndSpan(ctx, sc, err)
		}()
	}
	req, err := client.DeletePreparer(ctx, groupName, serviceName, deleteRunningTasks)
	if err != nil {
		err = autorest.NewErrorWithError(err, "datamigration.ServicesClient", "Delete", nil, "Failure preparing request")
		return
	}

	result, err = client.DeleteSender(req)
	if err != nil {
		err = autorest.NewErrorWithError(err, "datamigration.ServicesClient", "Delete", nil, "Failure sending request")
		return
	}

	return
}

// DeletePreparer prepares the Delete request.
func (client ServicesClient) DeletePreparer(ctx context.Context, groupName string, serviceName string, deleteRunningTasks *bool) (*http.Request, error) {
	pathParameters := map[string]interface{}{
		"groupName":      autorest.Encode("path", groupName),
		"serviceName":    autorest.Encode("path", serviceName),
		"subscriptionId": autorest.Encode("path", client.SubscriptionID),
	}

	const APIVersion = "2017-11-15-preview"
	queryParameters := map[string]interface{}{
		"api-version": APIVersion,
	}
	if deleteRunningTasks != nil {
		queryParameters["deleteRunningTasks"] = autorest.Encode("query", *deleteRunningTasks)
	}

	preparer := autorest.CreatePreparer(
		autorest.AsDelete(),
		autorest.WithBaseURL(client.BaseURI),
		autorest.WithPathParameters("/subscriptions/{subscriptionId}/resourceGroups/{groupName}/providers/Microsoft.DataMigration/services/{serviceName}", pathParameters),
		autorest.WithQueryParameters(queryParameters))
	return preparer.Prepare((&http.Request{}).WithContext(ctx))
}

// DeleteSender sends the Delete request. The method will close the
// http.Response Body if it receives an error.
func (client ServicesClient) DeleteSender(req *http.Request) (future ServicesDeleteFuture, err error) {
	var resp *http.Response
	resp, err = client.Send(req, azure.DoRetryWithRegistration(client.Client))
	if err != nil {
		return
	}
	var azf azure.Future
	azf, err = azure.NewFutureFromResponse(resp)
	future.FutureAPI = &azf
	future.Result = func(client ServicesClient) (ar autorest.Response, err error) {
		var done bool
		done, err = future.DoneWithContext(context.Background(), client)
		if err != nil {
			err = autorest.NewErrorWithError(err, "datamigration.ServicesDeleteFuture", "Result", future.Response(), "Polling failure")
			return
		}
		if !done {
			err = azure.NewAsyncOpIncompleteError("datamigration.ServicesDeleteFuture")
			return
		}
		ar.Response = future.Response()
		return
	}
	return
}

// DeleteResponder handles the response to the Delete request. The method always
// closes the http.Response Body.
func (client ServicesClient) DeleteResponder(resp *http.Response) (result autorest.Response, err error) {
	err = autorest.Respond(
		resp,
		azure.WithErrorUnlessStatusCode(http.StatusOK, http.StatusAccepted, http.StatusNoContent),
		autorest.ByClosing())
	result.Response = resp
	return
}

// Get the services resource is the top-level resource that represents the Data Migration Service. The GET method
// retrieves information about a service instance.
// Parameters:
// groupName - name of the resource group
// serviceName - name of the service
func (client ServicesClient) Get(ctx context.Context, groupName string, serviceName string) (result Service, err error) {
	if tracing.IsEnabled() {
		ctx = tracing.StartSpan(ctx, fqdn+"/ServicesClient.Get")
		defer func() {
			sc := -1
			if result.Response.Response != nil {
				sc = result.Response.Response.StatusCode
			}
			tracing.EndSpan(ctx, sc, err)
		}()
	}
	req, err := client.GetPreparer(ctx, groupName, serviceName)
	if err != nil {
		err = autorest.NewErrorWithError(err, "datamigration.ServicesClient", "Get", nil, "Failure preparing request")
		return
	}

	resp, err := client.GetSender(req)
	if err != nil {
		result.Response = autorest.Response{Response: resp}
		err = autorest.NewErrorWithError(err, "datamigration.ServicesClient", "Get", resp, "Failure sending request")
		return
	}

	result, err = client.GetResponder(resp)
	if err != nil {
		err = autorest.NewErrorWithError(err, "datamigration.ServicesClient", "Get", resp, "Failure responding to request")
		return
	}

	return
}

// GetPreparer prepares the Get request.
func (client ServicesClient) GetPreparer(ctx context.Context, groupName string, serviceName string) (*http.Request, error) {
	pathParameters := map[string]interface{}{
		"groupName":      autorest.Encode("path", groupName),
		"serviceName":    autorest.Encode("path", serviceName),
		"subscriptionId": autorest.Encode("path", client.SubscriptionID),
	}

	const APIVersion = "2017-11-15-preview"
	queryParameters := map[string]interface{}{
		"api-version": APIVersion,
	}

	preparer := autorest.CreatePreparer(
		autorest.AsGet(),
		autorest.WithBaseURL(client.BaseURI),
		autorest.WithPathParameters("/subscriptions/{subscriptionId}/resourceGroups/{groupName}/providers/Microsoft.DataMigration/services/{serviceName}", pathParameters),
		autorest.WithQueryParameters(queryParameters))
	return preparer.Prepare((&http.Request{}).WithContext(ctx))
}

// GetSender sends the Get request. The method will close the
// http.Response Body if it receives an error.
func (client ServicesClient) GetSender(req *http.Request) (*http.Response, error) {
	return client.Send(req, azure.DoRetryWithRegistration(client.Client))
}

// GetResponder handles the response to the Get request. The method always
// closes the http.Response Body.
func (client ServicesClient) GetResponder(resp *http.Response) (result Service, err error) {
	err = autorest.Respond(
		resp,
		azure.WithErrorUnlessStatusCode(http.StatusOK),
		autorest.ByUnmarshallingJSON(&result),
		autorest.ByClosing())
	result.Response = autorest.Response{Response: resp}
	return
}

// List the services resource is the top-level resource that represents the Data Migration Service. This method returns
// a list of service resources in a subscription.
func (client ServicesClient) List(ctx context.Context) (result ServiceListPage, err error) {
	if tracing.IsEnabled() {
		ctx = tracing.StartSpan(ctx, fqdn+"/ServicesClient.List")
		defer func() {
			sc := -1
			if result.sl.Response.Response != nil {
				sc = result.sl.Response.Response.StatusCode
			}
			tracing.EndSpan(ctx, sc, err)
		}()
	}
	result.fn = client.listNextResults
	req, err := client.ListPreparer(ctx)
	if err != nil {
		err = autorest.NewErrorWithError(err, "datamigration.ServicesClient", "List", nil, "Failure preparing request")
		return
	}

	resp, err := client.ListSender(req)
	if err != nil {
		result.sl.Response = autorest.Response{Response: resp}
		err = autorest.NewErrorWithError(err, "datamigration.ServicesClient", "List", resp, "Failure sending request")
		return
	}

	result.sl, err = client.ListResponder(resp)
	if err != nil {
		err = autorest.NewErrorWithError(err, "datamigration.ServicesClient", "List", resp, "Failure responding to request")
		return
	}
	if result.sl.hasNextLink() && result.sl.IsEmpty() {
		err = result.NextWithContext(ctx)
		return
	}

	return
}

// ListPreparer prepares the List request.
func (client ServicesClient) ListPreparer(ctx context.Context) (*http.Request, error) {
	pathParameters := map[string]interface{}{
		"subscriptionId": autorest.Encode("path", client.SubscriptionID),
	}

	const APIVersion = "2017-11-15-preview"
	queryParameters := map[string]interface{}{
		"api-version": APIVersion,
	}

	preparer := autorest.CreatePreparer(
		autorest.AsGet(),
		autorest.WithBaseURL(client.BaseURI),
		autorest.WithPathParameters("/subscriptions/{subscriptionId}/providers/Microsoft.DataMigration/services", pathParameters),
		autorest.WithQueryParameters(queryParameters))
	return preparer.Prepare((&http.Request{}).WithContext(ctx))
}

// ListSender sends the List request. The method will close the
// http.Response Body if it receives an error.
func (client ServicesClient) ListSender(req *http.Request) (*http.Response, error) {
	return client.Send(req, azure.DoRetryWithRegistration(client.Client))
}

// ListResponder handles the response to the List request. The method always
// closes the http.Response Body.
func (client ServicesClient) ListResponder(resp *http.Response) (result ServiceList, err error) {
	err = autorest.Respond(
		resp,
		azure.WithErrorUnlessStatusCode(http.StatusOK),
		autorest.ByUnmarshallingJSON(&result),
		autorest.ByClosing())
	result.Response = autorest.Response{Response: resp}
	return
}

// listNextResults retrieves the next set of results, if any.
func (client ServicesClient) listNextResults(ctx context.Context, lastResults ServiceList) (result ServiceList, err error) {
	req, err := lastResults.serviceListPreparer(ctx)
	if err != nil {
		return result, autorest.NewErrorWithError(err, "datamigration.ServicesClient", "listNextResults", nil, "Failure preparing next results request")
	}
	if req == nil {
		return
	}
	resp, err := client.ListSender(req)
	if err != nil {
		result.Response = autorest.Response{Response: resp}
		return result, autorest.NewErrorWithError(err, "datamigration.ServicesClient", "listNextResults", resp, "Failure sending next results request")
	}
	result, err = client.ListResponder(resp)
	if err != nil {
		err = autorest.NewErrorWithError(err, "datamigration.ServicesClient", "listNextResults", resp, "Failure responding to next results request")
	}
	return
}

// ListComplete enumerates all values, automatically crossing page boundaries as required.
func (client ServicesClient) ListComplete(ctx context.Context) (result ServiceListIterator, err error) {
	if tracing.IsEnabled() {
		ctx = tracing.StartSpan(ctx, fqdn+"/ServicesClient.List")
		defer func() {
			sc := -1
			if result.Response().Response.Response != nil {
				sc = result.page.Response().Response.Response.StatusCode
			}
			tracing.EndSpan(ctx, sc, err)
		}()
	}
	result.page, err = client.List(ctx)
	return
}

// ListByResourceGroup the Services resource is the top-level resource that represents the Data Migration Service. This
// method returns a list of service resources in a resource group.
// Parameters:
// groupName - name of the resource group
func (client ServicesClient) ListByResourceGroup(ctx context.Context, groupName string) (result ServiceListPage, err error) {
	if tracing.IsEnabled() {
		ctx = tracing.StartSpan(ctx, fqdn+"/ServicesClient.ListByResourceGroup")
		defer func() {
			sc := -1
			if result.sl.Response.Response != nil {
				sc = result.sl.Response.Response.StatusCode
			}
			tracing.EndSpan(ctx, sc, err)
		}()
	}
	result.fn = client.listByResourceGroupNextResults
	req, err := client.ListByResourceGroupPreparer(ctx, groupName)
	if err != nil {
		err = autorest.NewErrorWithError(err, "datamigration.ServicesClient", "ListByResourceGroup", nil, "Failure preparing request")
		return
	}

	resp, err := client.ListByResourceGroupSender(req)
	if err != nil {
		result.sl.Response = autorest.Response{Response: resp}
		err = autorest.NewErrorWithError(err, "datamigration.ServicesClient", "ListByResourceGroup", resp, "Failure sending request")
		return
	}

	result.sl, err = client.ListByResourceGroupResponder(resp)
	if err != nil {
		err = autorest.NewErrorWithError(err, "datamigration.ServicesClient", "ListByResourceGroup", resp, "Failure responding to request")
		return
	}
	if result.sl.hasNextLink() && result.sl.IsEmpty() {
		err = result.NextWithContext(ctx)
		return
	}

	return
}

// ListByResourceGroupPreparer prepares the ListByResourceGroup request.
func (client ServicesClient) ListByResourceGroupPreparer(ctx context.Context, groupName string) (*http.Request, error) {
	pathParameters := map[string]interface{}{
		"groupName":      autorest.Encode("path", groupName),
		"subscriptionId": autorest.Encode("path", client.SubscriptionID),
	}

	const APIVersion = "2017-11-15-preview"
	queryParameters := map[string]interface{}{
		"api-version": APIVersion,
	}

	preparer := autorest.CreatePreparer(
		autorest.AsGet(),
		autorest.WithBaseURL(client.BaseURI),
		autorest.WithPathParameters("/subscriptions/{subscriptionId}/resourceGroups/{groupName}/providers/Microsoft.DataMigration/services", pathParameters),
		autorest.WithQueryParameters(queryParameters))
	return preparer.Prepare((&http.Request{}).WithContext(ctx))
}

// ListByResourceGroupSender sends the ListByResourceGroup request. The method will close the
// http.Response Body if it receives an error.
func (client ServicesClient) ListByResourceGroupSender(req *http.Request) (*http.Response, error) {
	return client.Send(req, azure.DoRetryWithRegistration(client.Client))
}

// ListByResourceGroupResponder handles the response to the ListByResourceGroup request. The method always
// closes the http.Response Body.
func (client ServicesClient) ListByResourceGroupResponder(resp *http.Response) (result ServiceList, err error) {
	err = autorest.Respond(
		resp,
		azure.WithErrorUnlessStatusCode(http.StatusOK),
		autorest.ByUnmarshallingJSON(&result),
		autorest.ByClosing())
	result.Response = autorest.Response{Response: resp}
	return
}

// listByResourceGroupNextResults retrieves the next set of results, if any.
func (client ServicesClient) listByResourceGroupNextResults(ctx context.Context, lastResults ServiceList) (result ServiceList, err error) {
	req, err := lastResults.serviceListPreparer(ctx)
	if err != nil {
		return result, autorest.NewErrorWithError(err, "datamigration.ServicesClient", "listByResourceGroupNextResults", nil, "Failure preparing next results request")
	}
	if req == nil {
		return
	}
	resp, err := client.ListByResourceGroupSender(req)
	if err != nil {
		result.Response = autorest.Response{Response: resp}
		return result, autorest.NewErrorWithError(err, "datamigration.ServicesClient", "listByResourceGroupNextResults", resp, "Failure sending next results request")
	}
	result, err = client.ListByResourceGroupResponder(resp)
	if err != nil {
		err = autorest.NewErrorWithError(err, "datamigration.ServicesClient", "listByResourceGroupNextResults", resp, "Failure responding to next results request")
	}
	return
}

// ListByResourceGroupComplete enumerates all values, automatically crossing page boundaries as required.
func (client ServicesClient) ListByResourceGroupComplete(ctx context.Context, groupName string) (result ServiceListIterator, err error) {
	if tracing.IsEnabled() {
		ctx = tracing.StartSpan(ctx, fqdn+"/ServicesClient.ListByResourceGroup")
		defer func() {
			sc := -1
			if result.Response().Response.Response != nil {
				sc = result.page.Response().Response.Response.StatusCode
			}
			tracing.EndSpan(ctx, sc, err)
		}()
	}
	result.page, err = client.ListByResourceGroup(ctx, groupName)
	return
}

// ListSkus the services resource is the top-level resource that represents the Data Migration Service. The skus action
// returns the list of SKUs that a service resource can be updated to.
// Parameters:
// groupName - name of the resource group
// serviceName - name of the service
func (client ServicesClient) ListSkus(ctx context.Context, groupName string, serviceName string) (result ServiceSkuListPage, err error) {
	if tracing.IsEnabled() {
		ctx = tracing.StartSpan(ctx, fqdn+"/ServicesClient.ListSkus")
		defer func() {
			sc := -1
			if result.ssl.Response.Response != nil {
				sc = result.ssl.Response.Response.StatusCode
			}
			tracing.EndSpan(ctx, sc, err)
		}()
	}
	result.fn = client.listSkusNextResults
	req, err := client.ListSkusPreparer(ctx, groupName, serviceName)
	if err != nil {
		err = autorest.NewErrorWithError(err, "datamigration.ServicesClient", "ListSkus", nil, "Failure preparing request")
		return
	}

	resp, err := client.ListSkusSender(req)
	if err != nil {
		result.ssl.Response = autorest.Response{Response: resp}
		err = autorest.NewErrorWithError(err, "datamigration.ServicesClient", "ListSkus", resp, "Failure sending request")
		return
	}

	result.ssl, err = client.ListSkusResponder(resp)
	if err != nil {
		err = autorest.NewErrorWithError(err, "datamigration.ServicesClient", "ListSkus", resp, "Failure responding to request")
		return
	}
	if result.ssl.hasNextLink() && result.ssl.IsEmpty() {
		err = result.NextWithContext(ctx)
		return
	}

	return
}

// ListSkusPreparer prepares the ListSkus request.
func (client ServicesClient) ListSkusPreparer(ctx context.Context, groupName string, serviceName string) (*http.Request, error) {
	pathParameters := map[string]interface{}{
		"groupName":      autorest.Encode("path", groupName),
		"serviceName":    autorest.Encode("path", serviceName),
		"subscriptionId": autorest.Encode("path", client.SubscriptionID),
	}

	const APIVersion = "2017-11-15-preview"
	queryParameters := map[string]interface{}{
		"api-version": APIVersion,
	}

	preparer := autorest.CreatePreparer(
		autorest.AsGet(),
		autorest.WithBaseURL(client.BaseURI),
		autorest.WithPathParameters("/subscriptions/{subscriptionId}/resourceGroups/{groupName}/providers/Microsoft.DataMigration/services/{serviceName}/skus", pathParameters),
		autorest.WithQueryParameters(queryParameters))
	return preparer.Prepare((&http.Request{}).WithContext(ctx))
}

// ListSkusSender sends the ListSkus request. The method will close the
// http.Response Body if it receives an error.
func (client ServicesClient) ListSkusSender(req *http.Request) (*http.Response, error) {
	return client.Send(req, azure.DoRetryWithRegistration(client.Client))
}

// ListSkusResponder handles the response to the ListSkus request. The method always
// closes the http.Response Body.
func (client ServicesClient) ListSkusResponder(resp *http.Response) (result ServiceSkuList, err error) {
	err = autorest.Respond(
		resp,
		azure.WithErrorUnlessStatusCode(http.StatusOK),
		autorest.ByUnmarshallingJSON(&result),
		autorest.ByClosing())
	result.Response = autorest.Response{Response: resp}
	return
}

// listSkusNextResults retrieves the next set of results, if any.
func (client ServicesClient) listSkusNextResults(ctx context.Context, lastResults ServiceSkuList) (result ServiceSkuList, err error) {
	req, err := lastResults.serviceSkuListPreparer(ctx)
	if err != nil {
		return result, autorest.NewErrorWithError(err, "datamigration.ServicesClient", "listSkusNextResults", nil, "Failure preparing next results request")
	}
	if req == nil {
		return
	}
	resp, err := client.ListSkusSender(req)
	if err != nil {
		result.Response = autorest.Response{Response: resp}
		return result, autorest.NewErrorWithError(err, "datamigration.ServicesClient", "listSkusNextResults", resp, "Failure sending next results request")
	}
	result, err = client.ListSkusResponder(resp)
	if err != nil {
		err = autorest.NewErrorWithError(err, "datamigration.ServicesClient", "listSkusNextResults", resp, "Failure responding to next results request")
	}
	return
}

// ListSkusComplete enumerates all values, automatically crossing page boundaries as required.
func (client ServicesClient) ListSkusComplete(ctx context.Context, groupName string, serviceName string) (result ServiceSkuListIterator, err error) {
	if tracing.IsEnabled() {
		ctx = tracing.StartSpan(ctx, fqdn+"/ServicesClient.ListSkus")
		defer func() {
			sc := -1
			if result.Response().Response.Response != nil {
				sc = result.page.Response().Response.Response.StatusCode
			}
			tracing.EndSpan(ctx, sc, err)
		}()
	}
	result.page, err = client.ListSkus(ctx, groupName, serviceName)
	return
}

// Start the services resource is the top-level resource that represents the Data Migration Service. This action starts
// the service and the service can be used for data migration.
// Parameters:
// groupName - name of the resource group
// serviceName - name of the service
func (client ServicesClient) Start(ctx context.Context, groupName string, serviceName string) (result ServicesStartFuture, err error) {
	if tracing.IsEnabled() {
		ctx = tracing.StartSpan(ctx, fqdn+"/ServicesClient.Start")
		defer func() {
			sc := -1
			if result.FutureAPI != nil && result.FutureAPI.Response() != nil {
				sc = result.FutureAPI.Response().StatusCode
			}
			tracing.EndSpan(ctx, sc, err)
		}()
	}
	req, err := client.StartPreparer(ctx, groupName, serviceName)
	if err != nil {
		err = autorest.NewErrorWithError(err, "datamigration.ServicesClient", "Start", nil, "Failure preparing request")
		return
	}

	result, err = client.StartSender(req)
	if err != nil {
		err = autorest.NewErrorWithError(err, "datamigration.ServicesClient", "Start", nil, "Failure sending request")
		return
	}

	return
}

// StartPreparer prepares the Start request.
func (client ServicesClient) StartPreparer(ctx context.Context, groupName string, serviceName string) (*http.Request, error) {
	pathParameters := map[string]interface{}{
		"groupName":      autorest.Encode("path", groupName),
		"serviceName":    autorest.Encode("path", serviceName),
		"subscriptionId": autorest.Encode("path", client.SubscriptionID),
	}

	const APIVersion = "2017-11-15-preview"
	queryParameters := map[string]interface{}{
		"api-version": APIVersion,
	}

	preparer := autorest.CreatePreparer(
		autorest.AsPost(),
		autorest.WithBaseURL(client.BaseURI),
		autorest.WithPathParameters("/subscriptions/{subscriptionId}/resourceGroups/{groupName}/providers/Microsoft.DataMigration/services/{serviceName}/start", pathParameters),
		autorest.WithQueryParameters(queryParameters))
	return preparer.Prepare((&http.Request{}).WithContext(ctx))
}

// StartSender sends the Start request. The method will close the
// http.Response Body if it receives an error.
func (client ServicesClient) StartSender(req *http.Request) (future ServicesStartFuture, err error) {
	var resp *http.Response
	resp, err = client.Send(req, azure.DoRetryWithRegistration(client.Client))
	if err != nil {
		return
	}
	var azf azure.Future
	azf, err = azure.NewFutureFromResponse(resp)
	future.FutureAPI = &azf
	future.Result = func(client ServicesClient) (ar autorest.Response, err error) {
		var done bool
		done, err = future.DoneWithContext(context.Background(), client)
		if err != nil {
			err = autorest.NewErrorWithError(err, "datamigration.ServicesStartFuture", "Result", future.Response(), "Polling failure")
			return
		}
		if !done {
			err = azure.NewAsyncOpIncompleteError("datamigration.ServicesStartFuture")
			return
		}
		ar.Response = future.Response()
		return
	}
	return
}

// StartResponder handles the response to the Start request. The method always
// closes the http.Response Body.
func (client ServicesClient) StartResponder(resp *http.Response) (result autorest.Response, err error) {
	err = autorest.Respond(
		resp,
		azure.WithErrorUnlessStatusCode(http.StatusOK, http.StatusAccepted),
		autorest.ByClosing())
	result.Response = resp
	return
}

// Stop the services resource is the top-level resource that represents the Data Migration Service. This action stops
// the service and the service cannot be used for data migration. The service owner won't be billed when the service is
// stopped.
// Parameters:
// groupName - name of the resource group
// serviceName - name of the service
func (client ServicesClient) Stop(ctx context.Context, groupName string, serviceName string) (result ServicesStopFuture, err error) {
	if tracing.IsEnabled() {
		ctx = tracing.StartSpan(ctx, fqdn+"/ServicesClient.Stop")
		defer func() {
			sc := -1
			if result.FutureAPI != nil && result.FutureAPI.Response() != nil {
				sc = result.FutureAPI.Response().StatusCode
			}
			tracing.EndSpan(ctx, sc, err)
		}()
	}
	req, err := client.StopPreparer(ctx, groupName, serviceName)
	if err != nil {
		err = autorest.NewErrorWithError(err, "datamigration.ServicesClient", "Stop", nil, "Failure preparing request")
		return
	}

	result, err = client.StopSender(req)
	if err != nil {
		err = autorest.NewErrorWithError(err, "datamigration.ServicesClient", "Stop", nil, "Failure sending request")
		return
	}

	return
}

// StopPreparer prepares the Stop request.
func (client ServicesClient) StopPreparer(ctx context.Context, groupName string, serviceName string) (*http.Request, error) {
	pathParameters := map[string]interface{}{
		"groupName":      autorest.Encode("path", groupName),
		"serviceName":    autorest.Encode("path", serviceName),
		"subscriptionId": autorest.Encode("path", client.SubscriptionID),
	}

	const APIVersion = "2017-11-15-preview"
	queryParameters := map[string]interface{}{
		"api-version": APIVersion,
	}

	preparer := autorest.CreatePreparer(
		autorest.AsPost(),
		autorest.WithBaseURL(client.BaseURI),
		autorest.WithPathParameters("/subscriptions/{subscriptionId}/resourceGroups/{groupName}/providers/Microsoft.DataMigration/services/{serviceName}/stop", pathParameters),
		autorest.WithQueryParameters(queryParameters))
	return preparer.Prepare((&http.Request{}).WithContext(ctx))
}

// StopSender sends the Stop request. The method will close the
// http.Response Body if it receives an error.
func (client ServicesClient) StopSender(req *http.Request) (future ServicesStopFuture, err error) {
	var resp *http.Response
	resp, err = client.Send(req, azure.DoRetryWithRegistration(client.Client))
	if err != nil {
		return
	}
	var azf azure.Future
	azf, err = azure.NewFutureFromResponse(resp)
	future.FutureAPI = &azf
	future.Result = func(client ServicesClient) (ar autorest.Response, err error) {
		var done bool
		done, err = future.DoneWithContext(context.Background(), client)
		if err != nil {
			err = autorest.NewErrorWithError(err, "datamigration.ServicesStopFuture", "Result", future.Response(), "Polling failure")
			return
		}
		if !done {
			err = azure.NewAsyncOpIncompleteError("datamigration.ServicesStopFuture")
			return
		}
		ar.Response = future.Response()
		return
	}
	return
}

// StopResponder handles the response to the Stop request. The method always
// closes the http.Response Body.
func (client ServicesClient) StopResponder(resp *http.Response) (result autorest.Response, err error) {
	err = autorest.Respond(
		resp,
		azure.WithErrorUnlessStatusCode(http.StatusOK, http.StatusAccepted),
		autorest.ByClosing())
	result.Response = resp
	return
}

// Update the services resource is the top-level resource that represents the Data Migration Service. The PATCH method
// updates an existing service. This method can change the kind, SKU, and network of the service, but if tasks are
// currently running (i.e. the service is busy), this will fail with 400 Bad Request ("ServiceIsBusy").
// Parameters:
// parameters - information about the service
// groupName - name of the resource group
// serviceName - name of the service
func (client ServicesClient) Update(ctx context.Context, parameters Service, groupName string, serviceName string) (result ServicesUpdateFuture, err error) {
	if tracing.IsEnabled() {
		ctx = tracing.StartSpan(ctx, fqdn+"/ServicesClient.Update")
		defer func() {
			sc := -1
			if result.FutureAPI != nil && result.FutureAPI.Response() != nil {
				sc = result.FutureAPI.Response().StatusCode
			}
			tracing.EndSpan(ctx, sc, err)
		}()
	}
	req, err := client.UpdatePreparer(ctx, parameters, groupName, serviceName)
	if err != nil {
		err = autorest.NewErrorWithError(err, "datamigration.ServicesClient", "Update", nil, "Failure preparing request")
		return
	}

	result, err = client.UpdateSender(req)
	if err != nil {
		err = autorest.NewErrorWithError(err, "datamigration.ServicesClient", "Update", nil, "Failure sending request")
		return
	}

	return
}

// UpdatePreparer prepares the Update request.
func (client ServicesClient) UpdatePreparer(ctx context.Context, parameters Service, groupName string, serviceName string) (*http.Request, error) {
	pathParameters := map[string]interface{}{
		"groupName":      autorest.Encode("path", groupName),
		"serviceName":    autorest.Encode("path", serviceName),
		"subscriptionId": autorest.Encode("path", client.SubscriptionID),
	}

	const APIVersion = "2017-11-15-preview"
	queryParameters := map[string]interface{}{
		"api-version": APIVersion,
	}

	preparer := autorest.CreatePreparer(
		autorest.AsContentType("application/json; charset=utf-8"),
		autorest.AsPatch(),
		autorest.WithBaseURL(client.BaseURI),
		autorest.WithPathParameters("/subscriptions/{subscriptionId}/resourceGroups/{groupName}/providers/Microsoft.DataMigration/services/{serviceName}", pathParameters),
		autorest.WithJSON(parameters),
		autorest.WithQueryParameters(queryParameters))
	return preparer.Prepare((&http.Request{}).WithContext(ctx))
}

// UpdateSender sends the Update request. The method will close the
// http.Response Body if it receives an error.
func (client ServicesClient) UpdateSender(req *http.Request) (future ServicesUpdateFuture, err error) {
	var resp *http.Response
	resp, err = client.Send(req, azure.DoRetryWithRegistration(client.Client))
	if err != nil {
		return
	}
	var azf azure.Future
	azf, err = azure.NewFutureFromResponse(resp)
	future.FutureAPI = &azf
	future.Result = func(client ServicesClient) (s Service, err error) {
		var done bool
		done, err = future.DoneWithContext(context.Background(), client)
		if err != nil {
			err = autorest.NewErrorWithError(err, "datamigration.ServicesUpdateFuture", "Result", future.Response(), "Polling failure")
			return
		}
		if !done {
			err = azure.NewAsyncOpIncompleteError("datamigration.ServicesUpdateFuture")
			return
		}
		sender := autorest.DecorateSender(client, autorest.DoRetryForStatusCodes(client.RetryAttempts, client.RetryDuration, autorest.StatusCodesForRetry...))
		s.Response.Response, err = future.GetResult(sender)
		if s.Response.Response == nil && err == nil {
			err = autorest.NewErrorWithError(err, "datamigration.ServicesUpdateFuture", "Result", nil, "received nil response and error")
		}
		if err == nil && s.Response.Response.StatusCode != http.StatusNoContent {
			s, err = client.UpdateResponder(s.Response.Response)
			if err != nil {
				err = autorest.NewErrorWithError(err, "datamigration.ServicesUpdateFuture", "Result", s.Response.Response, "Failure responding to request")
			}
		}
		return
	}
	return
}

// UpdateResponder handles the response to the Update request. The method always
// closes the http.Response Body.
func (client ServicesClient) UpdateResponder(resp *http.Response) (result Service, err error) {
	err = autorest.Respond(
		resp,
		azure.WithErrorUnlessStatusCode(http.StatusOK, http.StatusAccepted),
		autorest.ByUnmarshallingJSON(&result),
		autorest.ByClosing())
	result.Response = autorest.Response{Response: resp}
	return
}
