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

package iam

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

// Attaches the specified managed policy to the specified user.
//
// You use this operation to attach a managed policy to a user. To embed an inline
// policy in a user, use [PutUserPolicy]PutUserPolicy .
//
// As a best practice, you can validate your IAM policies. To learn more, see [Validating IAM policies] in
// the IAM User Guide.
//
// For more information about policies, see [Managed policies and inline policies] in the IAM User Guide.
//
// [Validating IAM policies]: https://docs.aws.amazon.com/IAM/latest/UserGuide/access_policies_policy-validator.html
// [PutUserPolicy]: https://docs.aws.amazon.com/IAM/latest/APIReference/API_PutUserPolicy.html
// [Managed policies and inline policies]: https://docs.aws.amazon.com/IAM/latest/UserGuide/policies-managed-vs-inline.html
func (c *Client) AttachUserPolicy(ctx context.Context, params *AttachUserPolicyInput, optFns ...func(*Options)) (*AttachUserPolicyOutput, error) {
	if params == nil {
		params = &AttachUserPolicyInput{}
	}

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

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

type AttachUserPolicyInput struct {

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

	// The name (friendly name, not ARN) of the IAM user to attach the policy to.
	//
	// This parameter allows (through its [regex pattern]) a string of characters consisting of upper
	// and lowercase alphanumeric characters with no spaces. You can also include any
	// of the following characters: _+=,.@-
	//
	// [regex pattern]: http://wikipedia.org/wiki/regex
	//
	// This member is required.
	UserName *string

	noSmithyDocumentSerde
}

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

	noSmithyDocumentSerde
}

func (c *Client) addOperationAttachUserPolicyMiddlewares(stack *middleware.Stack, options Options) (err error) {
	err = stack.Serialize.Add(&awsAwsquery_serializeOpAttachUserPolicy{}, middleware.After)
	if err != nil {
		return err
	}
	err = stack.Deserialize.Add(&awsAwsquery_deserializeOpAttachUserPolicy{}, 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 = addOpAttachUserPolicyValidationMiddleware(stack); err != nil {
		return err
	}
	if err = stack.Initialize.Add(newServiceMetadataMiddleware(options.Region, "AttachUserPolicy"), 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
}