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

package paymentcryptographydata

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

// Decrypts ciphertext data to plaintext using a symmetric (TDES, AES), asymmetric
// (RSA), or derived (DUKPT or EMV) encryption key scheme. For more information,
// see [Decrypt data]in the Amazon Web Services Payment Cryptography User Guide.
//
// You can use an encryption key generated within Amazon Web Services Payment
// Cryptography, or you can import your own encryption key by calling [ImportKey]. For this
// operation, the key must have KeyModesOfUse set to Decrypt . In asymmetric
// decryption, Amazon Web Services Payment Cryptography decrypts the ciphertext
// using the private component of the asymmetric encryption key pair. For data
// encryption outside of Amazon Web Services Payment Cryptography, you can export
// the public component of the asymmetric key pair by calling [GetPublicCertificate].
//
// For symmetric and DUKPT decryption, Amazon Web Services Payment Cryptography
// supports TDES and AES algorithms. For EMV decryption, Amazon Web Services
// Payment Cryptography supports TDES algorithms. For asymmetric decryption,
// Amazon Web Services Payment Cryptography supports RSA .
//
// When you use TDES or TDES DUKPT, the ciphertext data length must be a multiple
// of 8 bytes. For AES or AES DUKPT, the ciphertext data length must be a multiple
// of 16 bytes. For RSA, it sould be equal to the key size unless padding is
// enabled.
//
// For information about valid keys for this operation, see [Understanding key attributes] and [Key types for specific data operations] in the Amazon
// Web Services Payment Cryptography User Guide.
//
// Cross-account use: This operation can't be used across different Amazon Web
// Services accounts.
//
// Related operations:
//
// # EncryptData
//
// [GetPublicCertificate]
//
// [ImportKey]
//
// [GetPublicCertificate]: https://docs.aws.amazon.com/payment-cryptography/latest/APIReference/API_GetPublicKeyCertificate.html
// [ImportKey]: https://docs.aws.amazon.com/payment-cryptography/latest/APIReference/API_ImportKey.html
// [Key types for specific data operations]: https://docs.aws.amazon.com/payment-cryptography/latest/userguide/crypto-ops-validkeys-ops.html
// [Decrypt data]: https://docs.aws.amazon.com/payment-cryptography/latest/userguide/decrypt-data.html
// [Understanding key attributes]: https://docs.aws.amazon.com/payment-cryptography/latest/userguide/keys-validattributes.html
func (c *Client) DecryptData(ctx context.Context, params *DecryptDataInput, optFns ...func(*Options)) (*DecryptDataOutput, error) {
	if params == nil {
		params = &DecryptDataInput{}
	}

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

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

type DecryptDataInput struct {

	// The ciphertext to decrypt.
	//
	// This member is required.
	CipherText *string

	// The encryption key type and attributes for ciphertext decryption.
	//
	// This member is required.
	DecryptionAttributes types.EncryptionDecryptionAttributes

	// The keyARN of the encryption key that Amazon Web Services Payment Cryptography
	// uses for ciphertext decryption.
	//
	// When a WrappedKeyBlock is provided, this value will be the identifier to the
	// key wrapping key. Otherwise, it is the key identifier used to perform the
	// operation.
	//
	// This member is required.
	KeyIdentifier *string

	// The WrappedKeyBlock containing the encryption key for ciphertext decryption.
	WrappedKey *types.WrappedKey

	noSmithyDocumentSerde
}

type DecryptDataOutput struct {

	// The keyARN of the encryption key that Amazon Web Services Payment Cryptography
	// uses for ciphertext decryption.
	//
	// This member is required.
	KeyArn *string

	// The key check value (KCV) of the encryption key. The KCV is used to check if
	// all parties holding a given key have the same key or to detect that a key has
	// changed.
	//
	// Amazon Web Services Payment Cryptography computes the KCV according to the CMAC
	// specification.
	//
	// This member is required.
	KeyCheckValue *string

	// The decrypted plaintext data in hexBinary format.
	//
	// This member is required.
	PlainText *string

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

	noSmithyDocumentSerde
}

func (c *Client) addOperationDecryptDataMiddlewares(stack *middleware.Stack, options Options) (err error) {
	if err := stack.Serialize.Add(&setOperationInputMiddleware{}, middleware.After); err != nil {
		return err
	}
	err = stack.Serialize.Add(&awsRestjson1_serializeOpDecryptData{}, middleware.After)
	if err != nil {
		return err
	}
	err = stack.Deserialize.Add(&awsRestjson1_deserializeOpDecryptData{}, middleware.After)
	if err != nil {
		return err
	}
	if err := addProtocolFinalizerMiddlewares(stack, options, "DecryptData"); 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 = 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 = addOpDecryptDataValidationMiddleware(stack); err != nil {
		return err
	}
	if err = stack.Initialize.Add(newServiceMetadataMiddleware_opDecryptData(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
	}
	return nil
}

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