// Copyright 2023 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.

// Code generated by protoc-gen-go_gapic. DO NOT EDIT.

package compute

import (
	"bytes"
	"context"
	"fmt"
	"io/ioutil"
	"math"
	"net/http"
	"net/url"

	computepb "cloud.google.com/go/compute/apiv1/computepb"
	gax "github.com/googleapis/gax-go/v2"
	"google.golang.org/api/googleapi"
	"google.golang.org/api/iterator"
	"google.golang.org/api/option"
	"google.golang.org/api/option/internaloption"
	httptransport "google.golang.org/api/transport/http"
	"google.golang.org/grpc"
	"google.golang.org/grpc/metadata"
	"google.golang.org/protobuf/encoding/protojson"
	"google.golang.org/protobuf/proto"
)

var newFirewallPoliciesClientHook clientHook

// FirewallPoliciesCallOptions contains the retry settings for each method of FirewallPoliciesClient.
type FirewallPoliciesCallOptions struct {
	AddAssociation     []gax.CallOption
	AddRule            []gax.CallOption
	CloneRules         []gax.CallOption
	Delete             []gax.CallOption
	Get                []gax.CallOption
	GetAssociation     []gax.CallOption
	GetIamPolicy       []gax.CallOption
	GetRule            []gax.CallOption
	Insert             []gax.CallOption
	List               []gax.CallOption
	ListAssociations   []gax.CallOption
	Move               []gax.CallOption
	Patch              []gax.CallOption
	PatchRule          []gax.CallOption
	RemoveAssociation  []gax.CallOption
	RemoveRule         []gax.CallOption
	SetIamPolicy       []gax.CallOption
	TestIamPermissions []gax.CallOption
}

func defaultFirewallPoliciesRESTCallOptions() *FirewallPoliciesCallOptions {
	return &FirewallPoliciesCallOptions{
		AddAssociation:     []gax.CallOption{},
		AddRule:            []gax.CallOption{},
		CloneRules:         []gax.CallOption{},
		Delete:             []gax.CallOption{},
		Get:                []gax.CallOption{},
		GetAssociation:     []gax.CallOption{},
		GetIamPolicy:       []gax.CallOption{},
		GetRule:            []gax.CallOption{},
		Insert:             []gax.CallOption{},
		List:               []gax.CallOption{},
		ListAssociations:   []gax.CallOption{},
		Move:               []gax.CallOption{},
		Patch:              []gax.CallOption{},
		PatchRule:          []gax.CallOption{},
		RemoveAssociation:  []gax.CallOption{},
		RemoveRule:         []gax.CallOption{},
		SetIamPolicy:       []gax.CallOption{},
		TestIamPermissions: []gax.CallOption{},
	}
}

// internalFirewallPoliciesClient is an interface that defines the methods available from Google Compute Engine API.
type internalFirewallPoliciesClient interface {
	Close() error
	setGoogleClientInfo(...string)
	Connection() *grpc.ClientConn
	AddAssociation(context.Context, *computepb.AddAssociationFirewallPolicyRequest, ...gax.CallOption) (*Operation, error)
	AddRule(context.Context, *computepb.AddRuleFirewallPolicyRequest, ...gax.CallOption) (*Operation, error)
	CloneRules(context.Context, *computepb.CloneRulesFirewallPolicyRequest, ...gax.CallOption) (*Operation, error)
	Delete(context.Context, *computepb.DeleteFirewallPolicyRequest, ...gax.CallOption) (*Operation, error)
	Get(context.Context, *computepb.GetFirewallPolicyRequest, ...gax.CallOption) (*computepb.FirewallPolicy, error)
	GetAssociation(context.Context, *computepb.GetAssociationFirewallPolicyRequest, ...gax.CallOption) (*computepb.FirewallPolicyAssociation, error)
	GetIamPolicy(context.Context, *computepb.GetIamPolicyFirewallPolicyRequest, ...gax.CallOption) (*computepb.Policy, error)
	GetRule(context.Context, *computepb.GetRuleFirewallPolicyRequest, ...gax.CallOption) (*computepb.FirewallPolicyRule, error)
	Insert(context.Context, *computepb.InsertFirewallPolicyRequest, ...gax.CallOption) (*Operation, error)
	List(context.Context, *computepb.ListFirewallPoliciesRequest, ...gax.CallOption) *FirewallPolicyIterator
	ListAssociations(context.Context, *computepb.ListAssociationsFirewallPolicyRequest, ...gax.CallOption) (*computepb.FirewallPoliciesListAssociationsResponse, error)
	Move(context.Context, *computepb.MoveFirewallPolicyRequest, ...gax.CallOption) (*Operation, error)
	Patch(context.Context, *computepb.PatchFirewallPolicyRequest, ...gax.CallOption) (*Operation, error)
	PatchRule(context.Context, *computepb.PatchRuleFirewallPolicyRequest, ...gax.CallOption) (*Operation, error)
	RemoveAssociation(context.Context, *computepb.RemoveAssociationFirewallPolicyRequest, ...gax.CallOption) (*Operation, error)
	RemoveRule(context.Context, *computepb.RemoveRuleFirewallPolicyRequest, ...gax.CallOption) (*Operation, error)
	SetIamPolicy(context.Context, *computepb.SetIamPolicyFirewallPolicyRequest, ...gax.CallOption) (*computepb.Policy, error)
	TestIamPermissions(context.Context, *computepb.TestIamPermissionsFirewallPolicyRequest, ...gax.CallOption) (*computepb.TestPermissionsResponse, error)
}

// FirewallPoliciesClient is a client for interacting with Google Compute Engine API.
// Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
//
// The FirewallPolicies API.
type FirewallPoliciesClient struct {
	// The internal transport-dependent client.
	internalClient internalFirewallPoliciesClient

	// The call options for this service.
	CallOptions *FirewallPoliciesCallOptions
}

// Wrapper methods routed to the internal client.

// Close closes the connection to the API service. The user should invoke this when
// the client is no longer required.
func (c *FirewallPoliciesClient) Close() error {
	return c.internalClient.Close()
}

// setGoogleClientInfo sets the name and version of the application in
// the `x-goog-api-client` header passed on each request. Intended for
// use by Google-written clients.
func (c *FirewallPoliciesClient) setGoogleClientInfo(keyval ...string) {
	c.internalClient.setGoogleClientInfo(keyval...)
}

// Connection returns a connection to the API service.
//
// Deprecated: Connections are now pooled so this method does not always
// return the same resource.
func (c *FirewallPoliciesClient) Connection() *grpc.ClientConn {
	return c.internalClient.Connection()
}

// AddAssociation inserts an association for the specified firewall policy.
func (c *FirewallPoliciesClient) AddAssociation(ctx context.Context, req *computepb.AddAssociationFirewallPolicyRequest, opts ...gax.CallOption) (*Operation, error) {
	return c.internalClient.AddAssociation(ctx, req, opts...)
}

// AddRule inserts a rule into a firewall policy.
func (c *FirewallPoliciesClient) AddRule(ctx context.Context, req *computepb.AddRuleFirewallPolicyRequest, opts ...gax.CallOption) (*Operation, error) {
	return c.internalClient.AddRule(ctx, req, opts...)
}

// CloneRules copies rules to the specified firewall policy.
func (c *FirewallPoliciesClient) CloneRules(ctx context.Context, req *computepb.CloneRulesFirewallPolicyRequest, opts ...gax.CallOption) (*Operation, error) {
	return c.internalClient.CloneRules(ctx, req, opts...)
}

// Delete deletes the specified policy.
func (c *FirewallPoliciesClient) Delete(ctx context.Context, req *computepb.DeleteFirewallPolicyRequest, opts ...gax.CallOption) (*Operation, error) {
	return c.internalClient.Delete(ctx, req, opts...)
}

// Get returns the specified firewall policy.
func (c *FirewallPoliciesClient) Get(ctx context.Context, req *computepb.GetFirewallPolicyRequest, opts ...gax.CallOption) (*computepb.FirewallPolicy, error) {
	return c.internalClient.Get(ctx, req, opts...)
}

// GetAssociation gets an association with the specified name.
func (c *FirewallPoliciesClient) GetAssociation(ctx context.Context, req *computepb.GetAssociationFirewallPolicyRequest, opts ...gax.CallOption) (*computepb.FirewallPolicyAssociation, error) {
	return c.internalClient.GetAssociation(ctx, req, opts...)
}

// GetIamPolicy gets the access control policy for a resource. May be empty if no such policy or resource exists.
func (c *FirewallPoliciesClient) GetIamPolicy(ctx context.Context, req *computepb.GetIamPolicyFirewallPolicyRequest, opts ...gax.CallOption) (*computepb.Policy, error) {
	return c.internalClient.GetIamPolicy(ctx, req, opts...)
}

// GetRule gets a rule of the specified priority.
func (c *FirewallPoliciesClient) GetRule(ctx context.Context, req *computepb.GetRuleFirewallPolicyRequest, opts ...gax.CallOption) (*computepb.FirewallPolicyRule, error) {
	return c.internalClient.GetRule(ctx, req, opts...)
}

// Insert creates a new policy in the specified project using the data included in the request.
func (c *FirewallPoliciesClient) Insert(ctx context.Context, req *computepb.InsertFirewallPolicyRequest, opts ...gax.CallOption) (*Operation, error) {
	return c.internalClient.Insert(ctx, req, opts...)
}

// List lists all the policies that have been configured for the specified folder or organization.
func (c *FirewallPoliciesClient) List(ctx context.Context, req *computepb.ListFirewallPoliciesRequest, opts ...gax.CallOption) *FirewallPolicyIterator {
	return c.internalClient.List(ctx, req, opts...)
}

// ListAssociations lists associations of a specified target, i.e., organization or folder.
func (c *FirewallPoliciesClient) ListAssociations(ctx context.Context, req *computepb.ListAssociationsFirewallPolicyRequest, opts ...gax.CallOption) (*computepb.FirewallPoliciesListAssociationsResponse, error) {
	return c.internalClient.ListAssociations(ctx, req, opts...)
}

// Move moves the specified firewall policy.
func (c *FirewallPoliciesClient) Move(ctx context.Context, req *computepb.MoveFirewallPolicyRequest, opts ...gax.CallOption) (*Operation, error) {
	return c.internalClient.Move(ctx, req, opts...)
}

// Patch patches the specified policy with the data included in the request.
func (c *FirewallPoliciesClient) Patch(ctx context.Context, req *computepb.PatchFirewallPolicyRequest, opts ...gax.CallOption) (*Operation, error) {
	return c.internalClient.Patch(ctx, req, opts...)
}

// PatchRule patches a rule of the specified priority.
func (c *FirewallPoliciesClient) PatchRule(ctx context.Context, req *computepb.PatchRuleFirewallPolicyRequest, opts ...gax.CallOption) (*Operation, error) {
	return c.internalClient.PatchRule(ctx, req, opts...)
}

// RemoveAssociation removes an association for the specified firewall policy.
func (c *FirewallPoliciesClient) RemoveAssociation(ctx context.Context, req *computepb.RemoveAssociationFirewallPolicyRequest, opts ...gax.CallOption) (*Operation, error) {
	return c.internalClient.RemoveAssociation(ctx, req, opts...)
}

// RemoveRule deletes a rule of the specified priority.
func (c *FirewallPoliciesClient) RemoveRule(ctx context.Context, req *computepb.RemoveRuleFirewallPolicyRequest, opts ...gax.CallOption) (*Operation, error) {
	return c.internalClient.RemoveRule(ctx, req, opts...)
}

// SetIamPolicy sets the access control policy on the specified resource. Replaces any existing policy.
func (c *FirewallPoliciesClient) SetIamPolicy(ctx context.Context, req *computepb.SetIamPolicyFirewallPolicyRequest, opts ...gax.CallOption) (*computepb.Policy, error) {
	return c.internalClient.SetIamPolicy(ctx, req, opts...)
}

// TestIamPermissions returns permissions that a caller has on the specified resource.
func (c *FirewallPoliciesClient) TestIamPermissions(ctx context.Context, req *computepb.TestIamPermissionsFirewallPolicyRequest, opts ...gax.CallOption) (*computepb.TestPermissionsResponse, error) {
	return c.internalClient.TestIamPermissions(ctx, req, opts...)
}

// Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
type firewallPoliciesRESTClient struct {
	// The http endpoint to connect to.
	endpoint string

	// The http client.
	httpClient *http.Client

	// operationClient is used to call the operation-specific management service.
	operationClient *GlobalOrganizationOperationsClient

	// The x-goog-* metadata to be sent with each request.
	xGoogMetadata metadata.MD

	// Points back to the CallOptions field of the containing FirewallPoliciesClient
	CallOptions **FirewallPoliciesCallOptions
}

// NewFirewallPoliciesRESTClient creates a new firewall policies rest client.
//
// The FirewallPolicies API.
func NewFirewallPoliciesRESTClient(ctx context.Context, opts ...option.ClientOption) (*FirewallPoliciesClient, error) {
	clientOpts := append(defaultFirewallPoliciesRESTClientOptions(), opts...)
	httpClient, endpoint, err := httptransport.NewClient(ctx, clientOpts...)
	if err != nil {
		return nil, err
	}

	callOpts := defaultFirewallPoliciesRESTCallOptions()
	c := &firewallPoliciesRESTClient{
		endpoint:    endpoint,
		httpClient:  httpClient,
		CallOptions: &callOpts,
	}
	c.setGoogleClientInfo()

	o := []option.ClientOption{
		option.WithHTTPClient(httpClient),
		option.WithEndpoint(endpoint),
	}
	opC, err := NewGlobalOrganizationOperationsRESTClient(ctx, o...)
	if err != nil {
		return nil, err
	}
	c.operationClient = opC

	return &FirewallPoliciesClient{internalClient: c, CallOptions: callOpts}, nil
}

func defaultFirewallPoliciesRESTClientOptions() []option.ClientOption {
	return []option.ClientOption{
		internaloption.WithDefaultEndpoint("https://compute.googleapis.com"),
		internaloption.WithDefaultMTLSEndpoint("https://compute.mtls.googleapis.com"),
		internaloption.WithDefaultAudience("https://compute.googleapis.com/"),
		internaloption.WithDefaultScopes(DefaultAuthScopes()...),
	}
}

// setGoogleClientInfo sets the name and version of the application in
// the `x-goog-api-client` header passed on each request. Intended for
// use by Google-written clients.
func (c *firewallPoliciesRESTClient) setGoogleClientInfo(keyval ...string) {
	kv := append([]string{"gl-go", versionGo()}, keyval...)
	kv = append(kv, "gapic", getVersionClient(), "gax", gax.Version, "rest", "UNKNOWN")
	c.xGoogMetadata = metadata.Pairs("x-goog-api-client", gax.XGoogHeader(kv...))
}

// Close closes the connection to the API service. The user should invoke this when
// the client is no longer required.
func (c *firewallPoliciesRESTClient) Close() error {
	// Replace httpClient with nil to force cleanup.
	c.httpClient = nil
	if err := c.operationClient.Close(); err != nil {
		return err
	}
	return nil
}

// Connection returns a connection to the API service.
//
// Deprecated: This method always returns nil.
func (c *firewallPoliciesRESTClient) Connection() *grpc.ClientConn {
	return nil
}

// AddAssociation inserts an association for the specified firewall policy.
func (c *firewallPoliciesRESTClient) AddAssociation(ctx context.Context, req *computepb.AddAssociationFirewallPolicyRequest, opts ...gax.CallOption) (*Operation, error) {
	m := protojson.MarshalOptions{AllowPartial: true}
	body := req.GetFirewallPolicyAssociationResource()
	jsonReq, err := m.Marshal(body)
	if err != nil {
		return nil, err
	}

	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
		return nil, err
	}
	baseUrl.Path += fmt.Sprintf("/compute/v1/locations/global/firewallPolicies/%v/addAssociation", req.GetFirewallPolicy())

	params := url.Values{}
	if req != nil && req.ReplaceExistingAssociation != nil {
		params.Add("replaceExistingAssociation", fmt.Sprintf("%v", req.GetReplaceExistingAssociation()))
	}
	if req != nil && req.RequestId != nil {
		params.Add("requestId", fmt.Sprintf("%v", req.GetRequestId()))
	}

	baseUrl.RawQuery = params.Encode()

	// Build HTTP headers from client and context metadata.
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "firewall_policy", url.QueryEscape(req.GetFirewallPolicy())))

	headers := buildHeaders(ctx, c.xGoogMetadata, md, metadata.Pairs("Content-Type", "application/json"))
	opts = append((*c.CallOptions).AddAssociation[0:len((*c.CallOptions).AddAssociation):len((*c.CallOptions).AddAssociation)], opts...)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	resp := &computepb.Operation{}
	e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		if settings.Path != "" {
			baseUrl.Path = settings.Path
		}
		httpReq, err := http.NewRequest("POST", baseUrl.String(), bytes.NewReader(jsonReq))
		if err != nil {
			return err
		}
		httpReq = httpReq.WithContext(ctx)
		httpReq.Header = headers

		httpRsp, err := c.httpClient.Do(httpReq)
		if err != nil {
			return err
		}
		defer httpRsp.Body.Close()

		if err = googleapi.CheckResponse(httpRsp); err != nil {
			return err
		}

		buf, err := ioutil.ReadAll(httpRsp.Body)
		if err != nil {
			return err
		}

		if err := unm.Unmarshal(buf, resp); err != nil {
			return maybeUnknownEnum(err)
		}

		return nil
	}, opts...)
	if e != nil {
		return nil, e
	}
	op := &Operation{
		&globalOrganizationOperationsHandle{
			c:     c.operationClient,
			proto: resp,
		},
	}
	return op, nil
}

// AddRule inserts a rule into a firewall policy.
func (c *firewallPoliciesRESTClient) AddRule(ctx context.Context, req *computepb.AddRuleFirewallPolicyRequest, opts ...gax.CallOption) (*Operation, error) {
	m := protojson.MarshalOptions{AllowPartial: true}
	body := req.GetFirewallPolicyRuleResource()
	jsonReq, err := m.Marshal(body)
	if err != nil {
		return nil, err
	}

	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
		return nil, err
	}
	baseUrl.Path += fmt.Sprintf("/compute/v1/locations/global/firewallPolicies/%v/addRule", req.GetFirewallPolicy())

	params := url.Values{}
	if req != nil && req.RequestId != nil {
		params.Add("requestId", fmt.Sprintf("%v", req.GetRequestId()))
	}

	baseUrl.RawQuery = params.Encode()

	// Build HTTP headers from client and context metadata.
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "firewall_policy", url.QueryEscape(req.GetFirewallPolicy())))

	headers := buildHeaders(ctx, c.xGoogMetadata, md, metadata.Pairs("Content-Type", "application/json"))
	opts = append((*c.CallOptions).AddRule[0:len((*c.CallOptions).AddRule):len((*c.CallOptions).AddRule)], opts...)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	resp := &computepb.Operation{}
	e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		if settings.Path != "" {
			baseUrl.Path = settings.Path
		}
		httpReq, err := http.NewRequest("POST", baseUrl.String(), bytes.NewReader(jsonReq))
		if err != nil {
			return err
		}
		httpReq = httpReq.WithContext(ctx)
		httpReq.Header = headers

		httpRsp, err := c.httpClient.Do(httpReq)
		if err != nil {
			return err
		}
		defer httpRsp.Body.Close()

		if err = googleapi.CheckResponse(httpRsp); err != nil {
			return err
		}

		buf, err := ioutil.ReadAll(httpRsp.Body)
		if err != nil {
			return err
		}

		if err := unm.Unmarshal(buf, resp); err != nil {
			return maybeUnknownEnum(err)
		}

		return nil
	}, opts...)
	if e != nil {
		return nil, e
	}
	op := &Operation{
		&globalOrganizationOperationsHandle{
			c:     c.operationClient,
			proto: resp,
		},
	}
	return op, nil
}

// CloneRules copies rules to the specified firewall policy.
func (c *firewallPoliciesRESTClient) CloneRules(ctx context.Context, req *computepb.CloneRulesFirewallPolicyRequest, opts ...gax.CallOption) (*Operation, error) {
	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
		return nil, err
	}
	baseUrl.Path += fmt.Sprintf("/compute/v1/locations/global/firewallPolicies/%v/cloneRules", req.GetFirewallPolicy())

	params := url.Values{}
	if req != nil && req.RequestId != nil {
		params.Add("requestId", fmt.Sprintf("%v", req.GetRequestId()))
	}
	if req != nil && req.SourceFirewallPolicy != nil {
		params.Add("sourceFirewallPolicy", fmt.Sprintf("%v", req.GetSourceFirewallPolicy()))
	}

	baseUrl.RawQuery = params.Encode()

	// Build HTTP headers from client and context metadata.
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "firewall_policy", url.QueryEscape(req.GetFirewallPolicy())))

	headers := buildHeaders(ctx, c.xGoogMetadata, md, metadata.Pairs("Content-Type", "application/json"))
	opts = append((*c.CallOptions).CloneRules[0:len((*c.CallOptions).CloneRules):len((*c.CallOptions).CloneRules)], opts...)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	resp := &computepb.Operation{}
	e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		if settings.Path != "" {
			baseUrl.Path = settings.Path
		}
		httpReq, err := http.NewRequest("POST", baseUrl.String(), nil)
		if err != nil {
			return err
		}
		httpReq = httpReq.WithContext(ctx)
		httpReq.Header = headers

		httpRsp, err := c.httpClient.Do(httpReq)
		if err != nil {
			return err
		}
		defer httpRsp.Body.Close()

		if err = googleapi.CheckResponse(httpRsp); err != nil {
			return err
		}

		buf, err := ioutil.ReadAll(httpRsp.Body)
		if err != nil {
			return err
		}

		if err := unm.Unmarshal(buf, resp); err != nil {
			return maybeUnknownEnum(err)
		}

		return nil
	}, opts...)
	if e != nil {
		return nil, e
	}
	op := &Operation{
		&globalOrganizationOperationsHandle{
			c:     c.operationClient,
			proto: resp,
		},
	}
	return op, nil
}

// Delete deletes the specified policy.
func (c *firewallPoliciesRESTClient) Delete(ctx context.Context, req *computepb.DeleteFirewallPolicyRequest, opts ...gax.CallOption) (*Operation, error) {
	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
		return nil, err
	}
	baseUrl.Path += fmt.Sprintf("/compute/v1/locations/global/firewallPolicies/%v", req.GetFirewallPolicy())

	params := url.Values{}
	if req != nil && req.RequestId != nil {
		params.Add("requestId", fmt.Sprintf("%v", req.GetRequestId()))
	}

	baseUrl.RawQuery = params.Encode()

	// Build HTTP headers from client and context metadata.
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "firewall_policy", url.QueryEscape(req.GetFirewallPolicy())))

	headers := buildHeaders(ctx, c.xGoogMetadata, md, metadata.Pairs("Content-Type", "application/json"))
	opts = append((*c.CallOptions).Delete[0:len((*c.CallOptions).Delete):len((*c.CallOptions).Delete)], opts...)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	resp := &computepb.Operation{}
	e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		if settings.Path != "" {
			baseUrl.Path = settings.Path
		}
		httpReq, err := http.NewRequest("DELETE", baseUrl.String(), nil)
		if err != nil {
			return err
		}
		httpReq = httpReq.WithContext(ctx)
		httpReq.Header = headers

		httpRsp, err := c.httpClient.Do(httpReq)
		if err != nil {
			return err
		}
		defer httpRsp.Body.Close()

		if err = googleapi.CheckResponse(httpRsp); err != nil {
			return err
		}

		buf, err := ioutil.ReadAll(httpRsp.Body)
		if err != nil {
			return err
		}

		if err := unm.Unmarshal(buf, resp); err != nil {
			return maybeUnknownEnum(err)
		}

		return nil
	}, opts...)
	if e != nil {
		return nil, e
	}
	op := &Operation{
		&globalOrganizationOperationsHandle{
			c:     c.operationClient,
			proto: resp,
		},
	}
	return op, nil
}

// Get returns the specified firewall policy.
func (c *firewallPoliciesRESTClient) Get(ctx context.Context, req *computepb.GetFirewallPolicyRequest, opts ...gax.CallOption) (*computepb.FirewallPolicy, error) {
	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
		return nil, err
	}
	baseUrl.Path += fmt.Sprintf("/compute/v1/locations/global/firewallPolicies/%v", req.GetFirewallPolicy())

	// Build HTTP headers from client and context metadata.
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "firewall_policy", url.QueryEscape(req.GetFirewallPolicy())))

	headers := buildHeaders(ctx, c.xGoogMetadata, md, metadata.Pairs("Content-Type", "application/json"))
	opts = append((*c.CallOptions).Get[0:len((*c.CallOptions).Get):len((*c.CallOptions).Get)], opts...)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	resp := &computepb.FirewallPolicy{}
	e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		if settings.Path != "" {
			baseUrl.Path = settings.Path
		}
		httpReq, err := http.NewRequest("GET", baseUrl.String(), nil)
		if err != nil {
			return err
		}
		httpReq = httpReq.WithContext(ctx)
		httpReq.Header = headers

		httpRsp, err := c.httpClient.Do(httpReq)
		if err != nil {
			return err
		}
		defer httpRsp.Body.Close()

		if err = googleapi.CheckResponse(httpRsp); err != nil {
			return err
		}

		buf, err := ioutil.ReadAll(httpRsp.Body)
		if err != nil {
			return err
		}

		if err := unm.Unmarshal(buf, resp); err != nil {
			return maybeUnknownEnum(err)
		}

		return nil
	}, opts...)
	if e != nil {
		return nil, e
	}
	return resp, nil
}

// GetAssociation gets an association with the specified name.
func (c *firewallPoliciesRESTClient) GetAssociation(ctx context.Context, req *computepb.GetAssociationFirewallPolicyRequest, opts ...gax.CallOption) (*computepb.FirewallPolicyAssociation, error) {
	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
		return nil, err
	}
	baseUrl.Path += fmt.Sprintf("/compute/v1/locations/global/firewallPolicies/%v/getAssociation", req.GetFirewallPolicy())

	params := url.Values{}
	if req != nil && req.Name != nil {
		params.Add("name", fmt.Sprintf("%v", req.GetName()))
	}

	baseUrl.RawQuery = params.Encode()

	// Build HTTP headers from client and context metadata.
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "firewall_policy", url.QueryEscape(req.GetFirewallPolicy())))

	headers := buildHeaders(ctx, c.xGoogMetadata, md, metadata.Pairs("Content-Type", "application/json"))
	opts = append((*c.CallOptions).GetAssociation[0:len((*c.CallOptions).GetAssociation):len((*c.CallOptions).GetAssociation)], opts...)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	resp := &computepb.FirewallPolicyAssociation{}
	e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		if settings.Path != "" {
			baseUrl.Path = settings.Path
		}
		httpReq, err := http.NewRequest("GET", baseUrl.String(), nil)
		if err != nil {
			return err
		}
		httpReq = httpReq.WithContext(ctx)
		httpReq.Header = headers

		httpRsp, err := c.httpClient.Do(httpReq)
		if err != nil {
			return err
		}
		defer httpRsp.Body.Close()

		if err = googleapi.CheckResponse(httpRsp); err != nil {
			return err
		}

		buf, err := ioutil.ReadAll(httpRsp.Body)
		if err != nil {
			return err
		}

		if err := unm.Unmarshal(buf, resp); err != nil {
			return maybeUnknownEnum(err)
		}

		return nil
	}, opts...)
	if e != nil {
		return nil, e
	}
	return resp, nil
}

// GetIamPolicy gets the access control policy for a resource. May be empty if no such policy or resource exists.
func (c *firewallPoliciesRESTClient) GetIamPolicy(ctx context.Context, req *computepb.GetIamPolicyFirewallPolicyRequest, opts ...gax.CallOption) (*computepb.Policy, error) {
	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
		return nil, err
	}
	baseUrl.Path += fmt.Sprintf("/compute/v1/locations/global/firewallPolicies/%v/getIamPolicy", req.GetResource())

	params := url.Values{}
	if req != nil && req.OptionsRequestedPolicyVersion != nil {
		params.Add("optionsRequestedPolicyVersion", fmt.Sprintf("%v", req.GetOptionsRequestedPolicyVersion()))
	}

	baseUrl.RawQuery = params.Encode()

	// Build HTTP headers from client and context metadata.
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "resource", url.QueryEscape(req.GetResource())))

	headers := buildHeaders(ctx, c.xGoogMetadata, md, metadata.Pairs("Content-Type", "application/json"))
	opts = append((*c.CallOptions).GetIamPolicy[0:len((*c.CallOptions).GetIamPolicy):len((*c.CallOptions).GetIamPolicy)], opts...)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	resp := &computepb.Policy{}
	e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		if settings.Path != "" {
			baseUrl.Path = settings.Path
		}
		httpReq, err := http.NewRequest("GET", baseUrl.String(), nil)
		if err != nil {
			return err
		}
		httpReq = httpReq.WithContext(ctx)
		httpReq.Header = headers

		httpRsp, err := c.httpClient.Do(httpReq)
		if err != nil {
			return err
		}
		defer httpRsp.Body.Close()

		if err = googleapi.CheckResponse(httpRsp); err != nil {
			return err
		}

		buf, err := ioutil.ReadAll(httpRsp.Body)
		if err != nil {
			return err
		}

		if err := unm.Unmarshal(buf, resp); err != nil {
			return maybeUnknownEnum(err)
		}

		return nil
	}, opts...)
	if e != nil {
		return nil, e
	}
	return resp, nil
}

// GetRule gets a rule of the specified priority.
func (c *firewallPoliciesRESTClient) GetRule(ctx context.Context, req *computepb.GetRuleFirewallPolicyRequest, opts ...gax.CallOption) (*computepb.FirewallPolicyRule, error) {
	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
		return nil, err
	}
	baseUrl.Path += fmt.Sprintf("/compute/v1/locations/global/firewallPolicies/%v/getRule", req.GetFirewallPolicy())

	params := url.Values{}
	if req != nil && req.Priority != nil {
		params.Add("priority", fmt.Sprintf("%v", req.GetPriority()))
	}

	baseUrl.RawQuery = params.Encode()

	// Build HTTP headers from client and context metadata.
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "firewall_policy", url.QueryEscape(req.GetFirewallPolicy())))

	headers := buildHeaders(ctx, c.xGoogMetadata, md, metadata.Pairs("Content-Type", "application/json"))
	opts = append((*c.CallOptions).GetRule[0:len((*c.CallOptions).GetRule):len((*c.CallOptions).GetRule)], opts...)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	resp := &computepb.FirewallPolicyRule{}
	e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		if settings.Path != "" {
			baseUrl.Path = settings.Path
		}
		httpReq, err := http.NewRequest("GET", baseUrl.String(), nil)
		if err != nil {
			return err
		}
		httpReq = httpReq.WithContext(ctx)
		httpReq.Header = headers

		httpRsp, err := c.httpClient.Do(httpReq)
		if err != nil {
			return err
		}
		defer httpRsp.Body.Close()

		if err = googleapi.CheckResponse(httpRsp); err != nil {
			return err
		}

		buf, err := ioutil.ReadAll(httpRsp.Body)
		if err != nil {
			return err
		}

		if err := unm.Unmarshal(buf, resp); err != nil {
			return maybeUnknownEnum(err)
		}

		return nil
	}, opts...)
	if e != nil {
		return nil, e
	}
	return resp, nil
}

// Insert creates a new policy in the specified project using the data included in the request.
func (c *firewallPoliciesRESTClient) Insert(ctx context.Context, req *computepb.InsertFirewallPolicyRequest, opts ...gax.CallOption) (*Operation, error) {
	m := protojson.MarshalOptions{AllowPartial: true}
	body := req.GetFirewallPolicyResource()
	jsonReq, err := m.Marshal(body)
	if err != nil {
		return nil, err
	}

	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
		return nil, err
	}
	baseUrl.Path += fmt.Sprintf("/compute/v1/locations/global/firewallPolicies")

	params := url.Values{}
	params.Add("parentId", fmt.Sprintf("%v", req.GetParentId()))
	if req != nil && req.RequestId != nil {
		params.Add("requestId", fmt.Sprintf("%v", req.GetRequestId()))
	}

	baseUrl.RawQuery = params.Encode()

	// Build HTTP headers from client and context metadata.
	headers := buildHeaders(ctx, c.xGoogMetadata, metadata.Pairs("Content-Type", "application/json"))
	opts = append((*c.CallOptions).Insert[0:len((*c.CallOptions).Insert):len((*c.CallOptions).Insert)], opts...)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	resp := &computepb.Operation{}
	e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		if settings.Path != "" {
			baseUrl.Path = settings.Path
		}
		httpReq, err := http.NewRequest("POST", baseUrl.String(), bytes.NewReader(jsonReq))
		if err != nil {
			return err
		}
		httpReq = httpReq.WithContext(ctx)
		httpReq.Header = headers

		httpRsp, err := c.httpClient.Do(httpReq)
		if err != nil {
			return err
		}
		defer httpRsp.Body.Close()

		if err = googleapi.CheckResponse(httpRsp); err != nil {
			return err
		}

		buf, err := ioutil.ReadAll(httpRsp.Body)
		if err != nil {
			return err
		}

		if err := unm.Unmarshal(buf, resp); err != nil {
			return maybeUnknownEnum(err)
		}

		return nil
	}, opts...)
	if e != nil {
		return nil, e
	}
	op := &Operation{
		&globalOrganizationOperationsHandle{
			c:     c.operationClient,
			proto: resp,
		},
	}
	return op, nil
}

// List lists all the policies that have been configured for the specified folder or organization.
func (c *firewallPoliciesRESTClient) List(ctx context.Context, req *computepb.ListFirewallPoliciesRequest, opts ...gax.CallOption) *FirewallPolicyIterator {
	it := &FirewallPolicyIterator{}
	req = proto.Clone(req).(*computepb.ListFirewallPoliciesRequest)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	it.InternalFetch = func(pageSize int, pageToken string) ([]*computepb.FirewallPolicy, string, error) {
		resp := &computepb.FirewallPolicyList{}
		if pageToken != "" {
			req.PageToken = proto.String(pageToken)
		}
		if pageSize > math.MaxInt32 {
			req.MaxResults = proto.Uint32(math.MaxInt32)
		} else if pageSize != 0 {
			req.MaxResults = proto.Uint32(uint32(pageSize))
		}
		baseUrl, err := url.Parse(c.endpoint)
		if err != nil {
			return nil, "", err
		}
		baseUrl.Path += fmt.Sprintf("/compute/v1/locations/global/firewallPolicies")

		params := url.Values{}
		if req != nil && req.Filter != nil {
			params.Add("filter", fmt.Sprintf("%v", req.GetFilter()))
		}
		if req != nil && req.MaxResults != nil {
			params.Add("maxResults", fmt.Sprintf("%v", req.GetMaxResults()))
		}
		if req != nil && req.OrderBy != nil {
			params.Add("orderBy", fmt.Sprintf("%v", req.GetOrderBy()))
		}
		if req != nil && req.PageToken != nil {
			params.Add("pageToken", fmt.Sprintf("%v", req.GetPageToken()))
		}
		if req != nil && req.ParentId != nil {
			params.Add("parentId", fmt.Sprintf("%v", req.GetParentId()))
		}
		if req != nil && req.ReturnPartialSuccess != nil {
			params.Add("returnPartialSuccess", fmt.Sprintf("%v", req.GetReturnPartialSuccess()))
		}

		baseUrl.RawQuery = params.Encode()

		// Build HTTP headers from client and context metadata.
		headers := buildHeaders(ctx, c.xGoogMetadata, metadata.Pairs("Content-Type", "application/json"))
		e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
			if settings.Path != "" {
				baseUrl.Path = settings.Path
			}
			httpReq, err := http.NewRequest("GET", baseUrl.String(), nil)
			if err != nil {
				return err
			}
			httpReq.Header = headers

			httpRsp, err := c.httpClient.Do(httpReq)
			if err != nil {
				return err
			}
			defer httpRsp.Body.Close()

			if err = googleapi.CheckResponse(httpRsp); err != nil {
				return err
			}

			buf, err := ioutil.ReadAll(httpRsp.Body)
			if err != nil {
				return err
			}

			if err := unm.Unmarshal(buf, resp); err != nil {
				return maybeUnknownEnum(err)
			}

			return nil
		}, opts...)
		if e != nil {
			return nil, "", e
		}
		it.Response = resp
		return resp.GetItems(), resp.GetNextPageToken(), nil
	}

	fetch := func(pageSize int, pageToken string) (string, error) {
		items, nextPageToken, err := it.InternalFetch(pageSize, pageToken)
		if err != nil {
			return "", err
		}
		it.items = append(it.items, items...)
		return nextPageToken, nil
	}

	it.pageInfo, it.nextFunc = iterator.NewPageInfo(fetch, it.bufLen, it.takeBuf)
	it.pageInfo.MaxSize = int(req.GetMaxResults())
	it.pageInfo.Token = req.GetPageToken()

	return it
}

// ListAssociations lists associations of a specified target, i.e., organization or folder.
func (c *firewallPoliciesRESTClient) ListAssociations(ctx context.Context, req *computepb.ListAssociationsFirewallPolicyRequest, opts ...gax.CallOption) (*computepb.FirewallPoliciesListAssociationsResponse, error) {
	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
		return nil, err
	}
	baseUrl.Path += fmt.Sprintf("/compute/v1/locations/global/firewallPolicies/listAssociations")

	params := url.Values{}
	if req != nil && req.TargetResource != nil {
		params.Add("targetResource", fmt.Sprintf("%v", req.GetTargetResource()))
	}

	baseUrl.RawQuery = params.Encode()

	// Build HTTP headers from client and context metadata.
	headers := buildHeaders(ctx, c.xGoogMetadata, metadata.Pairs("Content-Type", "application/json"))
	opts = append((*c.CallOptions).ListAssociations[0:len((*c.CallOptions).ListAssociations):len((*c.CallOptions).ListAssociations)], opts...)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	resp := &computepb.FirewallPoliciesListAssociationsResponse{}
	e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		if settings.Path != "" {
			baseUrl.Path = settings.Path
		}
		httpReq, err := http.NewRequest("GET", baseUrl.String(), nil)
		if err != nil {
			return err
		}
		httpReq = httpReq.WithContext(ctx)
		httpReq.Header = headers

		httpRsp, err := c.httpClient.Do(httpReq)
		if err != nil {
			return err
		}
		defer httpRsp.Body.Close()

		if err = googleapi.CheckResponse(httpRsp); err != nil {
			return err
		}

		buf, err := ioutil.ReadAll(httpRsp.Body)
		if err != nil {
			return err
		}

		if err := unm.Unmarshal(buf, resp); err != nil {
			return maybeUnknownEnum(err)
		}

		return nil
	}, opts...)
	if e != nil {
		return nil, e
	}
	return resp, nil
}

// Move moves the specified firewall policy.
func (c *firewallPoliciesRESTClient) Move(ctx context.Context, req *computepb.MoveFirewallPolicyRequest, opts ...gax.CallOption) (*Operation, error) {
	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
		return nil, err
	}
	baseUrl.Path += fmt.Sprintf("/compute/v1/locations/global/firewallPolicies/%v/move", req.GetFirewallPolicy())

	params := url.Values{}
	params.Add("parentId", fmt.Sprintf("%v", req.GetParentId()))
	if req != nil && req.RequestId != nil {
		params.Add("requestId", fmt.Sprintf("%v", req.GetRequestId()))
	}

	baseUrl.RawQuery = params.Encode()

	// Build HTTP headers from client and context metadata.
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "firewall_policy", url.QueryEscape(req.GetFirewallPolicy())))

	headers := buildHeaders(ctx, c.xGoogMetadata, md, metadata.Pairs("Content-Type", "application/json"))
	opts = append((*c.CallOptions).Move[0:len((*c.CallOptions).Move):len((*c.CallOptions).Move)], opts...)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	resp := &computepb.Operation{}
	e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		if settings.Path != "" {
			baseUrl.Path = settings.Path
		}
		httpReq, err := http.NewRequest("POST", baseUrl.String(), nil)
		if err != nil {
			return err
		}
		httpReq = httpReq.WithContext(ctx)
		httpReq.Header = headers

		httpRsp, err := c.httpClient.Do(httpReq)
		if err != nil {
			return err
		}
		defer httpRsp.Body.Close()

		if err = googleapi.CheckResponse(httpRsp); err != nil {
			return err
		}

		buf, err := ioutil.ReadAll(httpRsp.Body)
		if err != nil {
			return err
		}

		if err := unm.Unmarshal(buf, resp); err != nil {
			return maybeUnknownEnum(err)
		}

		return nil
	}, opts...)
	if e != nil {
		return nil, e
	}
	op := &Operation{
		&globalOrganizationOperationsHandle{
			c:     c.operationClient,
			proto: resp,
		},
	}
	return op, nil
}

// Patch patches the specified policy with the data included in the request.
func (c *firewallPoliciesRESTClient) Patch(ctx context.Context, req *computepb.PatchFirewallPolicyRequest, opts ...gax.CallOption) (*Operation, error) {
	m := protojson.MarshalOptions{AllowPartial: true}
	body := req.GetFirewallPolicyResource()
	jsonReq, err := m.Marshal(body)
	if err != nil {
		return nil, err
	}

	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
		return nil, err
	}
	baseUrl.Path += fmt.Sprintf("/compute/v1/locations/global/firewallPolicies/%v", req.GetFirewallPolicy())

	params := url.Values{}
	if req != nil && req.RequestId != nil {
		params.Add("requestId", fmt.Sprintf("%v", req.GetRequestId()))
	}

	baseUrl.RawQuery = params.Encode()

	// Build HTTP headers from client and context metadata.
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "firewall_policy", url.QueryEscape(req.GetFirewallPolicy())))

	headers := buildHeaders(ctx, c.xGoogMetadata, md, metadata.Pairs("Content-Type", "application/json"))
	opts = append((*c.CallOptions).Patch[0:len((*c.CallOptions).Patch):len((*c.CallOptions).Patch)], opts...)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	resp := &computepb.Operation{}
	e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		if settings.Path != "" {
			baseUrl.Path = settings.Path
		}
		httpReq, err := http.NewRequest("PATCH", baseUrl.String(), bytes.NewReader(jsonReq))
		if err != nil {
			return err
		}
		httpReq = httpReq.WithContext(ctx)
		httpReq.Header = headers

		httpRsp, err := c.httpClient.Do(httpReq)
		if err != nil {
			return err
		}
		defer httpRsp.Body.Close()

		if err = googleapi.CheckResponse(httpRsp); err != nil {
			return err
		}

		buf, err := ioutil.ReadAll(httpRsp.Body)
		if err != nil {
			return err
		}

		if err := unm.Unmarshal(buf, resp); err != nil {
			return maybeUnknownEnum(err)
		}

		return nil
	}, opts...)
	if e != nil {
		return nil, e
	}
	op := &Operation{
		&globalOrganizationOperationsHandle{
			c:     c.operationClient,
			proto: resp,
		},
	}
	return op, nil
}

// PatchRule patches a rule of the specified priority.
func (c *firewallPoliciesRESTClient) PatchRule(ctx context.Context, req *computepb.PatchRuleFirewallPolicyRequest, opts ...gax.CallOption) (*Operation, error) {
	m := protojson.MarshalOptions{AllowPartial: true}
	body := req.GetFirewallPolicyRuleResource()
	jsonReq, err := m.Marshal(body)
	if err != nil {
		return nil, err
	}

	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
		return nil, err
	}
	baseUrl.Path += fmt.Sprintf("/compute/v1/locations/global/firewallPolicies/%v/patchRule", req.GetFirewallPolicy())

	params := url.Values{}
	if req != nil && req.Priority != nil {
		params.Add("priority", fmt.Sprintf("%v", req.GetPriority()))
	}
	if req != nil && req.RequestId != nil {
		params.Add("requestId", fmt.Sprintf("%v", req.GetRequestId()))
	}

	baseUrl.RawQuery = params.Encode()

	// Build HTTP headers from client and context metadata.
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "firewall_policy", url.QueryEscape(req.GetFirewallPolicy())))

	headers := buildHeaders(ctx, c.xGoogMetadata, md, metadata.Pairs("Content-Type", "application/json"))
	opts = append((*c.CallOptions).PatchRule[0:len((*c.CallOptions).PatchRule):len((*c.CallOptions).PatchRule)], opts...)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	resp := &computepb.Operation{}
	e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		if settings.Path != "" {
			baseUrl.Path = settings.Path
		}
		httpReq, err := http.NewRequest("POST", baseUrl.String(), bytes.NewReader(jsonReq))
		if err != nil {
			return err
		}
		httpReq = httpReq.WithContext(ctx)
		httpReq.Header = headers

		httpRsp, err := c.httpClient.Do(httpReq)
		if err != nil {
			return err
		}
		defer httpRsp.Body.Close()

		if err = googleapi.CheckResponse(httpRsp); err != nil {
			return err
		}

		buf, err := ioutil.ReadAll(httpRsp.Body)
		if err != nil {
			return err
		}

		if err := unm.Unmarshal(buf, resp); err != nil {
			return maybeUnknownEnum(err)
		}

		return nil
	}, opts...)
	if e != nil {
		return nil, e
	}
	op := &Operation{
		&globalOrganizationOperationsHandle{
			c:     c.operationClient,
			proto: resp,
		},
	}
	return op, nil
}

// RemoveAssociation removes an association for the specified firewall policy.
func (c *firewallPoliciesRESTClient) RemoveAssociation(ctx context.Context, req *computepb.RemoveAssociationFirewallPolicyRequest, opts ...gax.CallOption) (*Operation, error) {
	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
		return nil, err
	}
	baseUrl.Path += fmt.Sprintf("/compute/v1/locations/global/firewallPolicies/%v/removeAssociation", req.GetFirewallPolicy())

	params := url.Values{}
	if req != nil && req.Name != nil {
		params.Add("name", fmt.Sprintf("%v", req.GetName()))
	}
	if req != nil && req.RequestId != nil {
		params.Add("requestId", fmt.Sprintf("%v", req.GetRequestId()))
	}

	baseUrl.RawQuery = params.Encode()

	// Build HTTP headers from client and context metadata.
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "firewall_policy", url.QueryEscape(req.GetFirewallPolicy())))

	headers := buildHeaders(ctx, c.xGoogMetadata, md, metadata.Pairs("Content-Type", "application/json"))
	opts = append((*c.CallOptions).RemoveAssociation[0:len((*c.CallOptions).RemoveAssociation):len((*c.CallOptions).RemoveAssociation)], opts...)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	resp := &computepb.Operation{}
	e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		if settings.Path != "" {
			baseUrl.Path = settings.Path
		}
		httpReq, err := http.NewRequest("POST", baseUrl.String(), nil)
		if err != nil {
			return err
		}
		httpReq = httpReq.WithContext(ctx)
		httpReq.Header = headers

		httpRsp, err := c.httpClient.Do(httpReq)
		if err != nil {
			return err
		}
		defer httpRsp.Body.Close()

		if err = googleapi.CheckResponse(httpRsp); err != nil {
			return err
		}

		buf, err := ioutil.ReadAll(httpRsp.Body)
		if err != nil {
			return err
		}

		if err := unm.Unmarshal(buf, resp); err != nil {
			return maybeUnknownEnum(err)
		}

		return nil
	}, opts...)
	if e != nil {
		return nil, e
	}
	op := &Operation{
		&globalOrganizationOperationsHandle{
			c:     c.operationClient,
			proto: resp,
		},
	}
	return op, nil
}

// RemoveRule deletes a rule of the specified priority.
func (c *firewallPoliciesRESTClient) RemoveRule(ctx context.Context, req *computepb.RemoveRuleFirewallPolicyRequest, opts ...gax.CallOption) (*Operation, error) {
	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
		return nil, err
	}
	baseUrl.Path += fmt.Sprintf("/compute/v1/locations/global/firewallPolicies/%v/removeRule", req.GetFirewallPolicy())

	params := url.Values{}
	if req != nil && req.Priority != nil {
		params.Add("priority", fmt.Sprintf("%v", req.GetPriority()))
	}
	if req != nil && req.RequestId != nil {
		params.Add("requestId", fmt.Sprintf("%v", req.GetRequestId()))
	}

	baseUrl.RawQuery = params.Encode()

	// Build HTTP headers from client and context metadata.
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "firewall_policy", url.QueryEscape(req.GetFirewallPolicy())))

	headers := buildHeaders(ctx, c.xGoogMetadata, md, metadata.Pairs("Content-Type", "application/json"))
	opts = append((*c.CallOptions).RemoveRule[0:len((*c.CallOptions).RemoveRule):len((*c.CallOptions).RemoveRule)], opts...)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	resp := &computepb.Operation{}
	e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		if settings.Path != "" {
			baseUrl.Path = settings.Path
		}
		httpReq, err := http.NewRequest("POST", baseUrl.String(), nil)
		if err != nil {
			return err
		}
		httpReq = httpReq.WithContext(ctx)
		httpReq.Header = headers

		httpRsp, err := c.httpClient.Do(httpReq)
		if err != nil {
			return err
		}
		defer httpRsp.Body.Close()

		if err = googleapi.CheckResponse(httpRsp); err != nil {
			return err
		}

		buf, err := ioutil.ReadAll(httpRsp.Body)
		if err != nil {
			return err
		}

		if err := unm.Unmarshal(buf, resp); err != nil {
			return maybeUnknownEnum(err)
		}

		return nil
	}, opts...)
	if e != nil {
		return nil, e
	}
	op := &Operation{
		&globalOrganizationOperationsHandle{
			c:     c.operationClient,
			proto: resp,
		},
	}
	return op, nil
}

// SetIamPolicy sets the access control policy on the specified resource. Replaces any existing policy.
func (c *firewallPoliciesRESTClient) SetIamPolicy(ctx context.Context, req *computepb.SetIamPolicyFirewallPolicyRequest, opts ...gax.CallOption) (*computepb.Policy, error) {
	m := protojson.MarshalOptions{AllowPartial: true}
	body := req.GetGlobalOrganizationSetPolicyRequestResource()
	jsonReq, err := m.Marshal(body)
	if err != nil {
		return nil, err
	}

	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
		return nil, err
	}
	baseUrl.Path += fmt.Sprintf("/compute/v1/locations/global/firewallPolicies/%v/setIamPolicy", req.GetResource())

	// Build HTTP headers from client and context metadata.
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "resource", url.QueryEscape(req.GetResource())))

	headers := buildHeaders(ctx, c.xGoogMetadata, md, metadata.Pairs("Content-Type", "application/json"))
	opts = append((*c.CallOptions).SetIamPolicy[0:len((*c.CallOptions).SetIamPolicy):len((*c.CallOptions).SetIamPolicy)], opts...)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	resp := &computepb.Policy{}
	e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		if settings.Path != "" {
			baseUrl.Path = settings.Path
		}
		httpReq, err := http.NewRequest("POST", baseUrl.String(), bytes.NewReader(jsonReq))
		if err != nil {
			return err
		}
		httpReq = httpReq.WithContext(ctx)
		httpReq.Header = headers

		httpRsp, err := c.httpClient.Do(httpReq)
		if err != nil {
			return err
		}
		defer httpRsp.Body.Close()

		if err = googleapi.CheckResponse(httpRsp); err != nil {
			return err
		}

		buf, err := ioutil.ReadAll(httpRsp.Body)
		if err != nil {
			return err
		}

		if err := unm.Unmarshal(buf, resp); err != nil {
			return maybeUnknownEnum(err)
		}

		return nil
	}, opts...)
	if e != nil {
		return nil, e
	}
	return resp, nil
}

// TestIamPermissions returns permissions that a caller has on the specified resource.
func (c *firewallPoliciesRESTClient) TestIamPermissions(ctx context.Context, req *computepb.TestIamPermissionsFirewallPolicyRequest, opts ...gax.CallOption) (*computepb.TestPermissionsResponse, error) {
	m := protojson.MarshalOptions{AllowPartial: true}
	body := req.GetTestPermissionsRequestResource()
	jsonReq, err := m.Marshal(body)
	if err != nil {
		return nil, err
	}

	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
		return nil, err
	}
	baseUrl.Path += fmt.Sprintf("/compute/v1/locations/global/firewallPolicies/%v/testIamPermissions", req.GetResource())

	// Build HTTP headers from client and context metadata.
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "resource", url.QueryEscape(req.GetResource())))

	headers := buildHeaders(ctx, c.xGoogMetadata, md, metadata.Pairs("Content-Type", "application/json"))
	opts = append((*c.CallOptions).TestIamPermissions[0:len((*c.CallOptions).TestIamPermissions):len((*c.CallOptions).TestIamPermissions)], opts...)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	resp := &computepb.TestPermissionsResponse{}
	e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		if settings.Path != "" {
			baseUrl.Path = settings.Path
		}
		httpReq, err := http.NewRequest("POST", baseUrl.String(), bytes.NewReader(jsonReq))
		if err != nil {
			return err
		}
		httpReq = httpReq.WithContext(ctx)
		httpReq.Header = headers

		httpRsp, err := c.httpClient.Do(httpReq)
		if err != nil {
			return err
		}
		defer httpRsp.Body.Close()

		if err = googleapi.CheckResponse(httpRsp); err != nil {
			return err
		}

		buf, err := ioutil.ReadAll(httpRsp.Body)
		if err != nil {
			return err
		}

		if err := unm.Unmarshal(buf, resp); err != nil {
			return maybeUnknownEnum(err)
		}

		return nil
	}, opts...)
	if e != nil {
		return nil, e
	}
	return resp, nil
}

// FirewallPolicyIterator manages a stream of *computepb.FirewallPolicy.
type FirewallPolicyIterator struct {
	items    []*computepb.FirewallPolicy
	pageInfo *iterator.PageInfo
	nextFunc func() error

	// Response is the raw response for the current page.
	// It must be cast to the RPC response type.
	// Calling Next() or InternalFetch() updates this value.
	Response interface{}

	// InternalFetch is for use by the Google Cloud Libraries only.
	// It is not part of the stable interface of this package.
	//
	// InternalFetch returns results from a single call to the underlying RPC.
	// The number of results is no greater than pageSize.
	// If there are no more results, nextPageToken is empty and err is nil.
	InternalFetch func(pageSize int, pageToken string) (results []*computepb.FirewallPolicy, nextPageToken string, err error)
}

// PageInfo supports pagination. See the google.golang.org/api/iterator package for details.
func (it *FirewallPolicyIterator) PageInfo() *iterator.PageInfo {
	return it.pageInfo
}

// Next returns the next result. Its second return value is iterator.Done if there are no more
// results. Once Next returns Done, all subsequent calls will return Done.
func (it *FirewallPolicyIterator) Next() (*computepb.FirewallPolicy, error) {
	var item *computepb.FirewallPolicy
	if err := it.nextFunc(); err != nil {
		return item, err
	}
	item = it.items[0]
	it.items = it.items[1:]
	return item, nil
}

func (it *FirewallPolicyIterator) bufLen() int {
	return len(it.items)
}

func (it *FirewallPolicyIterator) takeBuf() interface{} {
	b := it.items
	it.items = nil
	return b
}
