You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: delete_vnet_activity.go
    path of file: ./repos/pipeline/internal/providers/azure/pke/workflow
    
    the code of the file until where you have to start completion: // Copyright Â© 2019 Banzai Cloud
//
// 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.

package workflow

import (
	"context"
	"net/http"

	"emperror.dev/errors"
	"github.com/Azure/azure-sdk-for-go/services/network/mgmt/2018-10-01/network"
	"github.com/Azure/go-autorest/autorest/to"
	"go.uber.org/cadence/activity"
)

// DeleteVNetActivityName is the default registration name of the activity
const DeleteVNetActivityName = "pke-azure-delete-vnet"

// DeleteVNetActivity represents an activity for deleting a VNet
type DeleteVNetActivity struct {
	azureClientFactory *AzureClientFactory
}

// DeleteVNetActivityInput represents the input needed for executing a DeleteVNetActivity
type DeleteVNetActivityInput struct {
	OrganizationID    uint
	SecretID          string
	ClusterName       string
	ResourceGroupName string
	VNetName          string
}

// MakeDeleteVNetActivity returns a new DeleteVNetActivity
func MakeDeleteVNetActivity(azureClientFactory *AzureClientFactory) DeleteVNetActivity {
	retur
    
func (a DeleteVNetActivity) Execute(ctx context.Context, input DeleteVNetActivityInput) (err error) {
	logger := activity.GetLogger(ctx).Sugar().With(
		"organization", input.OrganizationID,
		"resourceGroup", input.ResourceGroupName,
		"cluster", input.ClusterName,
		"vnet", input.VNetName,
	)

	keyvals := []interface{}{
		"resourceGroup", input.ResourceGroupName,
		"vnet", input.VNetName,
	}

	logger.Info("delete virtual network")
	cc, err := a.azureClientFactory.New(input.OrganizationID, input.SecretID)
	if err = errors.WrapIf(err, "failed to create cloud connection"); err != nil {
		return
	}

	client := cc.GetVirtualNetworksClient()

	// delete virtual network only of owned by current cluster
	logger.Debug("get virtual network details")

	vnet, err := client.Get(ctx, input.ResourceGroupName, input.VNetName, "")
	if err != nil {
		if vnet.StatusCode == http.StatusNotFound {
			logger.Warn("virtual network not found")
			return nil
		}

		return errors.WrapIfWithDetails(err, "failed to get virtual network details", keyvals...)
	}

	tags := to.StringMap(vnet.Tags)
	if !HasOwnedTag(input.ClusterName, tags) {
		logger.Info("skip deleting virtual network as it's not owned by cluster")

		tags = RemoveSharedTag(tags, input.ClusterName)
		future, err := client.UpdateTags(ctx, input.ResourceGroupName, input.VNetName, network.TagsObject{Tags: *to.StringMapPtr(tags)})
		if err = errors.WrapIfWithDetails(err, "sending request to update virtual network tags failed", keyvals...); err != nil {
			if resp := future.Response(); resp != nil && resp.StatusCode == http.StatusNotFound {
				logger.Warn("virtual network not found")
				return nil
			}
			return err
		}
		err = future.WaitForCompletionRef(ctx, client.Client)
		if err = errors.WrapIfWithDetails(err, "waiting for the completion of virtual network tags update operation failed", keyvals...); err != nil {
			if resp := future.Response(); resp != nil && resp.StatusCode == http.StatusNotFound {
				logger.Warn("virtual network not found")
				return nil
			}
			return err
		}
		return nil
	}

	future, err := client.Delete(ctx, input.ResourceGroupName, input.VNetName)
	if err = errors.WrapIfWithDetails(err, "sending request to delete virtual network failed", keyvals...); err != nil {
		if resp := future.Response(); resp != nil && resp.StatusCode == http.StatusNotFound {
			logger.Warn("virtual network not found")
			return nil
		}
		return
	}

	logger.Debug("waiting for the completion of delete virtual network operation")

	err = future.WaitForCompletionRef(ctx, client.Client)
	if err = errors.WrapIfWithDetails(err, "waiting for the completion of delete virtual network operation failed", keyvals...); err != nil {
		if resp := future.Response(); resp != nil && resp.StatusCode == http.StatusNotFound {
			logger.Warn("virtual network not found")
			return nil
		}
		return
	}

	logger.Debug("virtual network deletion completed")

	return
}