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

package route53

import (
	"context"
	"github.com/aws/aws-sdk-go-v2/service/route53/types"
	"github.com/aws/smithy-go/middleware"
	smithyhttp "github.com/aws/smithy-go/transport/http"
)

// Updates an existing health check. Note that some values can't be updated.
//
// For more information about updating health checks, see [Creating, Updating, and Deleting Health Checks] in the Amazon Route 53
// Developer Guide.
//
// [Creating, Updating, and Deleting Health Checks]: https://docs.aws.amazon.com/Route53/latest/DeveloperGuide/health-checks-creating-deleting.html
func (c *Client) UpdateHealthCheck(ctx context.Context, params *UpdateHealthCheckInput, optFns ...func(*Options)) (*UpdateHealthCheckOutput, error) {
	if params == nil {
		params = &UpdateHealthCheckInput{}
	}

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

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

// A complex type that contains information about a request to update a health
// check.
type UpdateHealthCheckInput struct {

	// The ID for the health check for which you want detailed information. When you
	// created the health check, CreateHealthCheck returned the ID in the response, in
	// the HealthCheckId element.
	//
	// This member is required.
	HealthCheckId *string

	// A complex type that identifies the CloudWatch alarm that you want Amazon Route
	// 53 health checkers to use to determine whether the specified health check is
	// healthy.
	AlarmIdentifier *types.AlarmIdentifier

	// A complex type that contains one ChildHealthCheck element for each health check
	// that you want to associate with a CALCULATED health check.
	ChildHealthChecks []string

	// Stops Route 53 from performing health checks. When you disable a health check,
	// here's what happens:
	//
	//   - Health checks that check the health of endpoints: Route 53 stops submitting
	//   requests to your application, server, or other resource.
	//
	//   - Calculated health checks: Route 53 stops aggregating the status of the
	//   referenced health checks.
	//
	//   - Health checks that monitor CloudWatch alarms: Route 53 stops monitoring the
	//   corresponding CloudWatch metrics.
	//
	// After you disable a health check, Route 53 considers the status of the health
	// check to always be healthy. If you configured DNS failover, Route 53 continues
	// to route traffic to the corresponding resources. Additionally, in disabled
	// state, you can also invert the status of the health check to route traffic
	// differently. For more information, see [Inverted].
	//
	// Charges for a health check still apply when the health check is disabled. For
	// more information, see [Amazon Route 53 Pricing].
	//
	// [Inverted]: https://docs.aws.amazon.com/Route53/latest/APIReference/API_UpdateHealthCheck.html#Route53-UpdateHealthCheck-request-Inverted
	// [Amazon Route 53 Pricing]: http://aws.amazon.com/route53/pricing/
	Disabled *bool

	// Specify whether you want Amazon Route 53 to send the value of
	// FullyQualifiedDomainName to the endpoint in the client_hello message during TLS
	// negotiation. This allows the endpoint to respond to HTTPS health check requests
	// with the applicable SSL/TLS certificate.
	//
	// Some endpoints require that HTTPS requests include the host name in the
	// client_hello message. If you don't enable SNI, the status of the health check
	// will be SSL alert handshake_failure . A health check can also have that status
	// for other reasons. If SNI is enabled and you're still getting the error, check
	// the SSL/TLS configuration on your endpoint and confirm that your certificate is
	// valid.
	//
	// The SSL/TLS certificate on your endpoint includes a domain name in the Common
	// Name field and possibly several more in the Subject Alternative Names field.
	// One of the domain names in the certificate should match the value that you
	// specify for FullyQualifiedDomainName . If the endpoint responds to the
	// client_hello message with a certificate that does not include the domain name
	// that you specified in FullyQualifiedDomainName , a health checker will retry the
	// handshake. In the second attempt, the health checker will omit
	// FullyQualifiedDomainName from the client_hello message.
	EnableSNI *bool

	// The number of consecutive health checks that an endpoint must pass or fail for
	// Amazon Route 53 to change the current status of the endpoint from unhealthy to
	// healthy or vice versa. For more information, see [How Amazon Route 53 Determines Whether an Endpoint Is Healthy]in the Amazon Route 53
	// Developer Guide.
	//
	// Otherwise, if you don't specify a value for FailureThreshold , the default value
	// is three health checks.
	//
	// [How Amazon Route 53 Determines Whether an Endpoint Is Healthy]: https://docs.aws.amazon.com/Route53/latest/DeveloperGuide/dns-failover-determining-health-of-endpoints.html
	FailureThreshold *int32

	// Amazon Route 53 behavior depends on whether you specify a value for IPAddress .
	//
	// If a health check already has a value for IPAddress , you can change the value.
	// However, you can't update an existing health check to add or remove the value of
	// IPAddress .
	//
	// If you specify a value for IPAddress :
	//
	// Route 53 sends health check requests to the specified IPv4 or IPv6 address and
	// passes the value of FullyQualifiedDomainName in the Host header for all health
	// checks except TCP health checks. This is typically the fully qualified DNS name
	// of the endpoint on which you want Route 53 to perform health checks.
	//
	// When Route 53 checks the health of an endpoint, here is how it constructs the
	// Host header:
	//
	//   - If you specify a value of 80 for Port and HTTP or HTTP_STR_MATCH for Type ,
	//   Route 53 passes the value of FullyQualifiedDomainName to the endpoint in the
	//   Host header.
	//
	//   - If you specify a value of 443 for Port and HTTPS or HTTPS_STR_MATCH for Type
	//   , Route 53 passes the value of FullyQualifiedDomainName to the endpoint in the
	//   Host header.
	//
	//   - If you specify another value for Port and any value except TCP for Type ,
	//   Route 53 passes FullyQualifiedDomainName : Port to the endpoint in the Host
	//   header.
	//
	// If you don't specify a value for FullyQualifiedDomainName , Route 53 substitutes
	// the value of IPAddress in the Host header in each of the above cases.
	//
	// If you don't specify a value for IPAddress :
	//
	// If you don't specify a value for IPAddress , Route 53 sends a DNS request to the
	// domain that you specify in FullyQualifiedDomainName at the interval you specify
	// in RequestInterval . Using an IPv4 address that is returned by DNS, Route 53
	// then checks the health of the endpoint.
	//
	// If you don't specify a value for IPAddress , you can’t update the health check
	// to remove the FullyQualifiedDomainName ; if you don’t specify a value for
	// IPAddress on creation, a FullyQualifiedDomainName is required.
	//
	// If you don't specify a value for IPAddress , Route 53 uses only IPv4 to send
	// health checks to the endpoint. If there's no resource record set with a type of
	// A for the name that you specify for FullyQualifiedDomainName , the health check
	// fails with a "DNS resolution failed" error.
	//
	// If you want to check the health of weighted, latency, or failover resource
	// record sets and you choose to specify the endpoint only by
	// FullyQualifiedDomainName , we recommend that you create a separate health check
	// for each endpoint. For example, create a health check for each HTTP server that
	// is serving content for www.example.com. For the value of
	// FullyQualifiedDomainName , specify the domain name of the server (such as
	// us-east-2-www.example.com ), not the name of the resource record sets
	// (www.example.com).
	//
	// In this configuration, if the value of FullyQualifiedDomainName matches the
	// name of the resource record sets and you then associate the health check with
	// those resource record sets, health check results will be unpredictable.
	//
	// In addition, if the value of Type is HTTP , HTTPS , HTTP_STR_MATCH , or
	// HTTPS_STR_MATCH , Route 53 passes the value of FullyQualifiedDomainName in the
	// Host header, as it does when you specify a value for IPAddress . If the value of
	// Type is TCP , Route 53 doesn't pass a Host header.
	FullyQualifiedDomainName *string

	// A sequential counter that Amazon Route 53 sets to 1 when you create a health
	// check and increments by 1 each time you update settings for the health check.
	//
	// We recommend that you use GetHealthCheck or ListHealthChecks to get the current
	// value of HealthCheckVersion for the health check that you want to update, and
	// that you include that value in your UpdateHealthCheck request. This prevents
	// Route 53 from overwriting an intervening update:
	//
	//   - If the value in the UpdateHealthCheck request matches the value of
	//   HealthCheckVersion in the health check, Route 53 updates the health check with
	//   the new settings.
	//
	//   - If the value of HealthCheckVersion in the health check is greater, the
	//   health check was changed after you got the version number. Route 53 does not
	//   update the health check, and it returns a HealthCheckVersionMismatch error.
	HealthCheckVersion *int64

	// The number of child health checks that are associated with a CALCULATED health
	// that Amazon Route 53 must consider healthy for the CALCULATED health check to
	// be considered healthy. To specify the child health checks that you want to
	// associate with a CALCULATED health check, use the ChildHealthChecks and
	// ChildHealthCheck elements.
	//
	// Note the following:
	//
	//   - If you specify a number greater than the number of child health checks,
	//   Route 53 always considers this health check to be unhealthy.
	//
	//   - If you specify 0 , Route 53 always considers this health check to be healthy.
	HealthThreshold *int32

	// The IPv4 or IPv6 IP address for the endpoint that you want Amazon Route 53 to
	// perform health checks on. If you don't specify a value for IPAddress , Route 53
	// sends a DNS request to resolve the domain name that you specify in
	// FullyQualifiedDomainName at the interval that you specify in RequestInterval .
	// Using an IP address that is returned by DNS, Route 53 then checks the health of
	// the endpoint.
	//
	// Use one of the following formats for the value of IPAddress :
	//
	//   - IPv4 address: four values between 0 and 255, separated by periods (.), for
	//   example, 192.0.2.44 .
	//
	//   - IPv6 address: eight groups of four hexadecimal values, separated by colons
	//   (:), for example, 2001:0db8:85a3:0000:0000:abcd:0001:2345 . You can also
	//   shorten IPv6 addresses as described in RFC 5952, for example,
	//   2001:db8:85a3::abcd:1:2345 .
	//
	// If the endpoint is an EC2 instance, we recommend that you create an Elastic IP
	// address, associate it with your EC2 instance, and specify the Elastic IP address
	// for IPAddress . This ensures that the IP address of your instance never changes.
	// For more information, see the applicable documentation:
	//
	//   - Linux: [Elastic IP Addresses (EIP)]in the Amazon EC2 User Guide for Linux Instances
	//
	//   - Windows: [Elastic IP Addresses (EIP)]in the Amazon EC2 User Guide for Windows Instances
	//
	// If a health check already has a value for IPAddress , you can change the value.
	// However, you can't update an existing health check to add or remove the value of
	// IPAddress .
	//
	// For more information, see [FullyQualifiedDomainName].
	//
	// Constraints: Route 53 can't check the health of endpoints for which the IP
	// address is in local, private, non-routable, or multicast ranges. For more
	// information about IP addresses for which you can't create health checks, see the
	// following documents:
	//
	// [RFC 5735, Special Use IPv4 Addresses]
	//
	// [RFC 6598, IANA-Reserved IPv4 Prefix for Shared Address Space]
	//
	// [RFC 5156, Special-Use IPv6 Addresses]
	//
	// [RFC 5735, Special Use IPv4 Addresses]: https://tools.ietf.org/html/rfc5735
	// [FullyQualifiedDomainName]: https://docs.aws.amazon.com/Route53/latest/APIReference/API_UpdateHealthCheck.html#Route53-UpdateHealthCheck-request-FullyQualifiedDomainName
	// [Elastic IP Addresses (EIP)]: https://docs.aws.amazon.com/AWSEC2/latest/WindowsGuide/elastic-ip-addresses-eip.html
	// [RFC 6598, IANA-Reserved IPv4 Prefix for Shared Address Space]: https://tools.ietf.org/html/rfc6598
	// [RFC 5156, Special-Use IPv6 Addresses]: https://tools.ietf.org/html/rfc5156
	IPAddress *string

	// When CloudWatch has insufficient data about the metric to determine the alarm
	// state, the status that you want Amazon Route 53 to assign to the health check:
	//
	//   - Healthy : Route 53 considers the health check to be healthy.
	//
	//   - Unhealthy : Route 53 considers the health check to be unhealthy.
	//
	//   - LastKnownStatus : By default, Route 53 uses the status of the health check
	//   from the last time CloudWatch had sufficient data to determine the alarm state.
	//   For new health checks that have no last known status, the status for the health
	//   check is healthy.
	InsufficientDataHealthStatus types.InsufficientDataHealthStatus

	// Specify whether you want Amazon Route 53 to invert the status of a health
	// check, for example, to consider a health check unhealthy when it otherwise would
	// be considered healthy.
	Inverted *bool

	// The port on the endpoint that you want Amazon Route 53 to perform health checks
	// on.
	//
	// Don't specify a value for Port when you specify a value for Type of
	// CLOUDWATCH_METRIC or CALCULATED .
	Port *int32

	// A complex type that contains one Region element for each region that you want
	// Amazon Route 53 health checkers to check the specified endpoint from.
	Regions []types.HealthCheckRegion

	// A complex type that contains one ResettableElementName element for each element
	// that you want to reset to the default value. Valid values for
	// ResettableElementName include the following:
	//
	//   - ChildHealthChecks : Amazon Route 53 resets [ChildHealthChecks]to null.
	//
	//   - FullyQualifiedDomainName : Route 53 resets [FullyQualifiedDomainName]. to null.
	//
	//   - Regions : Route 53 resets the [Regions]list to the default set of regions.
	//
	//   - ResourcePath : Route 53 resets [ResourcePath]to null.
	//
	// [ResourcePath]: https://docs.aws.amazon.com/Route53/latest/APIReference/API_HealthCheckConfig.html#Route53-Type-HealthCheckConfig-ResourcePath
	// [ChildHealthChecks]: https://docs.aws.amazon.com/Route53/latest/APIReference/API_HealthCheckConfig.html#Route53-Type-HealthCheckConfig-ChildHealthChecks
	// [FullyQualifiedDomainName]: https://docs.aws.amazon.com/Route53/latest/APIReference/API_UpdateHealthCheck.html#Route53-UpdateHealthCheck-request-FullyQualifiedDomainName
	// [Regions]: https://docs.aws.amazon.com/Route53/latest/APIReference/API_HealthCheckConfig.html#Route53-Type-HealthCheckConfig-Regions
	ResetElements []types.ResettableElementName

	// The path that you want Amazon Route 53 to request when performing health
	// checks. The path can be any value for which your endpoint will return an HTTP
	// status code of 2xx or 3xx when the endpoint is healthy, for example the file
	// /docs/route53-health-check.html. You can also include query string parameters,
	// for example, /welcome.html?language=jp&login=y .
	//
	// Specify this value only if you want to change it.
	ResourcePath *string

	// If the value of Type is HTTP_STR_MATCH or HTTPS_STR_MATCH , the string that you
	// want Amazon Route 53 to search for in the response body from the specified
	// resource. If the string appears in the response body, Route 53 considers the
	// resource healthy. (You can't change the value of Type when you update a health
	// check.)
	SearchString *string

	noSmithyDocumentSerde
}

// A complex type that contains the response to the UpdateHealthCheck request.
type UpdateHealthCheckOutput struct {

	// A complex type that contains the response to an UpdateHealthCheck request.
	//
	// This member is required.
	HealthCheck *types.HealthCheck

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

	noSmithyDocumentSerde
}

func (c *Client) addOperationUpdateHealthCheckMiddlewares(stack *middleware.Stack, options Options) (err error) {
	err = stack.Serialize.Add(&awsRestxml_serializeOpUpdateHealthCheck{}, middleware.After)
	if err != nil {
		return err
	}
	err = stack.Deserialize.Add(&awsRestxml_deserializeOpUpdateHealthCheck{}, middleware.After)
	if err != nil {
		return err
	}

	if err = addlegacyEndpointContextSetter(stack, options); 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 = addRecordResponseTiming(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 = addCredentialSource(stack, options); err != nil {
		return err
	}
	if err = addOpUpdateHealthCheckValidationMiddleware(stack); err != nil {
		return err
	}
	if err = stack.Initialize.Add(newServiceMetadataMiddleware(options.Region, "UpdateHealthCheck"), middleware.Before); 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 = addInterceptors(stack, options); err != nil {
		return err
	}
	return nil
}
