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

package cognitoidentityprovider

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

// Given a user pool ID, returns the signing certificate for SAML 2.0 federation.
//
// Issued certificates are valid for 10 years from the date of issue. Amazon
// Cognito issues and assigns a new signing certificate annually. This renewal
// process returns a new value in the response to GetSigningCertificate , but
// doesn't invalidate the original certificate.
//
// For more information, see [Signing SAML requests].
//
// Amazon Cognito evaluates Identity and Access Management (IAM) policies in
// requests for this API operation. For this operation, you must use IAM
// credentials to authorize requests, and you must grant yourself the corresponding
// IAM permission in a policy.
//
// # Learn more
//
// [Signing Amazon Web Services API Requests]
//
// [Using the Amazon Cognito user pools API and user pool endpoints]
//
// [Using the Amazon Cognito user pools API and user pool endpoints]: https://docs.aws.amazon.com/cognito/latest/developerguide/user-pools-API-operations.html
// [Signing SAML requests]: https://docs.aws.amazon.com/cognito/latest/developerguide/cognito-user-pools-SAML-signing-encryption.html#cognito-user-pools-SAML-signing
// [Signing Amazon Web Services API Requests]: https://docs.aws.amazon.com/IAM/latest/UserGuide/reference_aws-signing.html
func (c *Client) GetSigningCertificate(ctx context.Context, params *GetSigningCertificateInput, optFns ...func(*Options)) (*GetSigningCertificateOutput, error) {
	if params == nil {
		params = &GetSigningCertificateInput{}
	}

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

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

// Request to get a signing certificate from Amazon Cognito.
type GetSigningCertificateInput struct {

	// The ID of the user pool where you want to view the signing certificate.
	//
	// This member is required.
	UserPoolId *string

	noSmithyDocumentSerde
}

// Response from Amazon Cognito for a signing certificate request.
type GetSigningCertificateOutput struct {

	// The x.509 certificate that signs SAML 2.0 authentication requests for your user
	// pool.
	Certificate *string

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

	noSmithyDocumentSerde
}

func (c *Client) addOperationGetSigningCertificateMiddlewares(stack *middleware.Stack, options Options) (err error) {
	if err := stack.Serialize.Add(&setOperationInputMiddleware{}, middleware.After); err != nil {
		return err
	}
	err = stack.Serialize.Add(&awsAwsjson11_serializeOpGetSigningCertificate{}, middleware.After)
	if err != nil {
		return err
	}
	err = stack.Deserialize.Add(&awsAwsjson11_deserializeOpGetSigningCertificate{}, middleware.After)
	if err != nil {
		return err
	}
	if err := addProtocolFinalizerMiddlewares(stack, options, "GetSigningCertificate"); 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); 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 = addTimeOffsetBuild(stack, c); err != nil {
		return err
	}
	if err = addUserAgentRetryMode(stack, options); err != nil {
		return err
	}
	if err = addCredentialSource(stack, options); err != nil {
		return err
	}
	if err = addOpGetSigningCertificateValidationMiddleware(stack); err != nil {
		return err
	}
	if err = stack.Initialize.Add(newServiceMetadataMiddleware_opGetSigningCertificate(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_opGetSigningCertificate(region string) *awsmiddleware.RegisterServiceMetadata {
	return &awsmiddleware.RegisterServiceMetadata{
		Region:        region,
		ServiceID:     ServiceID,
		OperationName: "GetSigningCertificate",
	}
}
