// Code generated by smithy-go-codegen DO NOT EDIT.

package ec2

import (
	"context"
	"fmt"
	awsmiddleware "github.com/aws/aws-sdk-go-v2/aws/middleware"
	"github.com/aws/aws-sdk-go-v2/service/ec2/types"
	"github.com/aws/smithy-go/middleware"
	smithyhttp "github.com/aws/smithy-go/transport/http"
)

// Modifies the specified Client VPN endpoint. Modifying the DNS server resets
// existing client connections.
func (c *Client) ModifyClientVpnEndpoint(ctx context.Context, params *ModifyClientVpnEndpointInput, optFns ...func(*Options)) (*ModifyClientVpnEndpointOutput, error) {
	if params == nil {
		params = &ModifyClientVpnEndpointInput{}
	}

	result, metadata, err := c.invokeOperation(ctx, "ModifyClientVpnEndpoint", params, optFns, c.addOperationModifyClientVpnEndpointMiddlewares)
	if err != nil {
		return nil, err
	}

	out := result.(*ModifyClientVpnEndpointOutput)
	out.ResultMetadata = metadata
	return out, nil
}

type ModifyClientVpnEndpointInput struct {

	// The ID of the Client VPN endpoint to modify.
	//
	// This member is required.
	ClientVpnEndpointId *string

	// The options for managing connection authorization for new client connections.
	ClientConnectOptions *types.ClientConnectOptions

	// Options for enabling a customizable text banner that will be displayed on
	// Amazon Web Services provided clients when a VPN session is established.
	ClientLoginBannerOptions *types.ClientLoginBannerOptions

	// Client route enforcement is a feature of the Client VPN service that helps
	// enforce administrator defined routes on devices connected through the VPN. T his
	// feature helps improve your security posture by ensuring that network traffic
	// originating from a connected client is not inadvertently sent outside the VPN
	// tunnel.
	//
	// Client route enforcement works by monitoring the route table of a connected
	// device for routing policy changes to the VPN connection. If the feature detects
	// any VPN routing policy modifications, it will automatically force an update to
	// the route table, reverting it back to the expected route configurations.
	ClientRouteEnforcementOptions *types.ClientRouteEnforcementOptions

	// Information about the client connection logging options.
	//
	// If you enable client connection logging, data about client connections is sent
	// to a Cloudwatch Logs log stream. The following information is logged:
	//
	//   - Client connection requests
	//
	//   - Client connection results (successful and unsuccessful)
	//
	//   - Reasons for unsuccessful client connection requests
	//
	//   - Client connection termination time
	ConnectionLogOptions *types.ConnectionLogOptions

	// A brief description of the Client VPN endpoint.
	Description *string

	// Indicates whether the client VPN session is disconnected after the maximum
	// timeout specified in sessionTimeoutHours is reached. If true , users are
	// prompted to reconnect client VPN. If false , client VPN attempts to reconnect
	// automatically. The default value is true .
	DisconnectOnSessionTimeout *bool

	// Information about the DNS servers to be used by Client VPN connections. A
	// Client VPN endpoint can have up to two DNS servers.
	DnsServers *types.DnsServersOptionsModifyStructure

	// Checks whether you have the required permissions for the action, without
	// actually making the request, and provides an error response. If you have the
	// required permissions, the error response is DryRunOperation . Otherwise, it is
	// UnauthorizedOperation .
	DryRun *bool

	// The IDs of one or more security groups to apply to the target network.
	SecurityGroupIds []string

	// Specify whether to enable the self-service portal for the Client VPN endpoint.
	SelfServicePortal types.SelfServicePortal

	// The ARN of the server certificate to be used. The server certificate must be
	// provisioned in Certificate Manager (ACM).
	ServerCertificateArn *string

	// The maximum VPN session duration time in hours.
	//
	// Valid values: 8 | 10 | 12 | 24
	//
	// Default value: 24
	SessionTimeoutHours *int32

	// Indicates whether the VPN is split-tunnel.
	//
	// For information about split-tunnel VPN endpoints, see [Split-tunnel Client VPN endpoint] in the Client VPN
	// Administrator Guide.
	//
	// [Split-tunnel Client VPN endpoint]: https://docs.aws.amazon.com/vpn/latest/clientvpn-admin/split-tunnel-vpn.html
	SplitTunnel *bool

	// The Transit Gateway configuration for the Client VPN endpoint. This option is
	// currently not supported.
	TransitGatewayConfiguration *types.TransitGatewayConfigurationInputStructure

	// The ID of the VPC to associate with the Client VPN endpoint.
	VpcId *string

	// The port number to assign to the Client VPN endpoint for TCP and UDP traffic.
	//
	// Valid Values: 443 | 1194
	//
	// Default Value: 443
	VpnPort *int32

	noSmithyDocumentSerde
}

type ModifyClientVpnEndpointOutput struct {

	// Returns true if the request succeeds; otherwise, it returns an error.
	Return *bool

	// Metadata pertaining to the operation's result.
	ResultMetadata middleware.Metadata

	noSmithyDocumentSerde
}

func (c *Client) addOperationModifyClientVpnEndpointMiddlewares(stack *middleware.Stack, options Options) (err error) {
	if err := stack.Serialize.Add(&setOperationInputMiddleware{}, middleware.After); err != nil {
		return err
	}
	err = stack.Serialize.Add(&awsEc2query_serializeOpModifyClientVpnEndpoint{}, middleware.After)
	if err != nil {
		return err
	}
	err = stack.Deserialize.Add(&awsEc2query_deserializeOpModifyClientVpnEndpoint{}, middleware.After)
	if err != nil {
		return err
	}
	if err := addProtocolFinalizerMiddlewares(stack, options, "ModifyClientVpnEndpoint"); err != nil {
		return fmt.Errorf("add protocol finalizers: %v", err)
	}

	if err = addlegacyEndpointContextSetter(stack, options); err != nil {
		return err
	}
	if err = addSetLoggerMiddleware(stack, options); err != nil {
		return err
	}
	if err = addClientRequestID(stack); err != nil {
		return err
	}
	if err = addComputeContentLength(stack); err != nil {
		return err
	}
	if err = addResolveEndpointMiddleware(stack, options); err != nil {
		return err
	}
	if err = addComputePayloadSHA256(stack); err != nil {
		return err
	}
	if err = addRetry(stack, options, c); err != nil {
		return err
	}
	if err = addRawResponseToMetadata(stack); err != nil {
		return err
	}
	if err = addRecordResponseTiming(stack); err != nil {
		return err
	}
	if err = addSpanRetryLoop(stack, options); err != nil {
		return err
	}
	if err = addClientUserAgent(stack, options); err != nil {
		return err
	}
	if err = smithyhttp.AddErrorCloseResponseBodyMiddleware(stack); err != nil {
		return err
	}
	if err = smithyhttp.AddCloseResponseBodyMiddleware(stack); err != nil {
		return err
	}
	if err = addSetLegacyContextSigningOptionsMiddleware(stack); err != nil {
		return err
	}
	if err = addUserAgentRetryMode(stack, options); err != nil {
		return err
	}
	if err = addCredentialSource(stack, options); err != nil {
		return err
	}
	if err = addOpModifyClientVpnEndpointValidationMiddleware(stack); err != nil {
		return err
	}
	if err = stack.Initialize.Add(newServiceMetadataMiddleware_opModifyClientVpnEndpoint(options.Region), middleware.Before); err != nil {
		return err
	}
	if err = addRecursionDetection(stack); err != nil {
		return err
	}
	if err = addRequestIDRetrieverMiddleware(stack); err != nil {
		return err
	}
	if err = addResponseErrorMiddleware(stack); err != nil {
		return err
	}
	if err = addRequestResponseLogging(stack, options); err != nil {
		return err
	}
	if err = addDisableHTTPSMiddleware(stack, options); err != nil {
		return err
	}
	if err = addInterceptBeforeRetryLoop(stack, options); err != nil {
		return err
	}
	if err = addInterceptAttempt(stack, options); err != nil {
		return err
	}
	if err = addInterceptors(stack, options); err != nil {
		return err
	}
	return nil
}

func newServiceMetadataMiddleware_opModifyClientVpnEndpoint(region string) *awsmiddleware.RegisterServiceMetadata {
	return &awsmiddleware.RegisterServiceMetadata{
		Region:        region,
		ServiceID:     ServiceID,
		OperationName: "ModifyClientVpnEndpoint",
	}
}