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

package iam

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"
)

// Deletes the specified version from the specified managed policy. You cannot
// delete the default version from a policy using this operation. To delete the
// default version from a policy, use DeletePolicy . To find out which version of a
// policy is marked as the default version, use ListPolicyVersions . For
// information about versions for managed policies, see Versioning for managed
// policies (https://docs.aws.amazon.com/IAM/latest/UserGuide/policies-managed-versions.html)
// in the IAM User Guide.
func (c *Client) DeletePolicyVersion(ctx context.Context, params *DeletePolicyVersionInput, optFns ...func(*Options)) (*DeletePolicyVersionOutput, error) {
	if params == nil {
		params = &DeletePolicyVersionInput{}
	}

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

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

type DeletePolicyVersionInput struct {

	// The Amazon Resource Name (ARN) of the IAM policy from which you want to delete
	// a version. For more information about ARNs, see Amazon Resource Names (ARNs) (https://docs.aws.amazon.com/general/latest/gr/aws-arns-and-namespaces.html)
	// in the Amazon Web Services General Reference.
	//
	// This member is required.
	PolicyArn *string

	// The policy version to delete. This parameter allows (through its regex pattern (http://wikipedia.org/wiki/regex)
	// ) a string of characters that consists of the lowercase letter 'v' followed by
	// one or two digits, and optionally followed by a period '.' and a string of
	// letters and digits. For more information about managed policy versions, see
	// Versioning for managed policies (https://docs.aws.amazon.com/IAM/latest/UserGuide/policies-managed-versions.html)
	// in the IAM User Guide.
	//
	// This member is required.
	VersionId *string

	noSmithyDocumentSerde
}

type DeletePolicyVersionOutput struct {
	// Metadata pertaining to the operation's result.
	ResultMetadata middleware.Metadata

	noSmithyDocumentSerde
}

func (c *Client) addOperationDeletePolicyVersionMiddlewares(stack *middleware.Stack, options Options) (err error) {
	if err := stack.Serialize.Add(&setOperationInputMiddleware{}, middleware.After); err != nil {
		return err
	}
	err = stack.Serialize.Add(&awsAwsquery_serializeOpDeletePolicyVersion{}, middleware.After)
	if err != nil {
		return err
	}
	err = stack.Deserialize.Add(&awsAwsquery_deserializeOpDeletePolicyVersion{}, middleware.After)
	if err != nil {
		return err
	}
	if err := addProtocolFinalizerMiddlewares(stack, options, "DeletePolicyVersion"); 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 = addOpDeletePolicyVersionValidationMiddleware(stack); err != nil {
		return err
	}
	if err = stack.Initialize.Add(newServiceMetadataMiddleware_opDeletePolicyVersion(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_opDeletePolicyVersion(region string) *awsmiddleware.RegisterServiceMetadata {
	return &awsmiddleware.RegisterServiceMetadata{
		Region:        region,
		ServiceID:     ServiceID,
		OperationName: "DeletePolicyVersion",
	}
}
