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

package iam

import (
	"context"
	awsmiddleware "github.com/aws/aws-sdk-go-v2/aws/middleware"
	"github.com/aws/aws-sdk-go-v2/aws/signer/v4"
	"github.com/aws/smithy-go/middleware"
	smithyhttp "github.com/aws/smithy-go/transport/http"
)

// Attaches the specified managed policy to the specified IAM role. When you
// attach a managed policy to a role, the managed policy becomes part of the role's
// permission (access) policy. You cannot use a managed policy as the role's trust
// policy. The role's trust policy is created at the same time as the role, using
// CreateRole (https://docs.aws.amazon.com/IAM/latest/APIReference/API_CreateRole.html)
// . You can update a role's trust policy using UpdateAssumerolePolicy (https://docs.aws.amazon.com/IAM/latest/APIReference/API_UpdateAssumeRolePolicy.html)
// . Use this operation to attach a managed policy to a role. To embed an inline
// policy in a role, use PutRolePolicy (https://docs.aws.amazon.com/IAM/latest/APIReference/API_PutRolePolicy.html)
// . For more information about policies, see Managed policies and inline policies (https://docs.aws.amazon.com/IAM/latest/UserGuide/policies-managed-vs-inline.html)
// in the IAM User Guide. As a best practice, you can validate your IAM policies.
// To learn more, see Validating IAM policies (https://docs.aws.amazon.com/IAM/latest/UserGuide/access_policies_policy-validator.html)
// in the IAM User Guide.
func (c *Client) AttachRolePolicy(ctx context.Context, params *AttachRolePolicyInput, optFns ...func(*Options)) (*AttachRolePolicyOutput, error) {
	if params == nil {
		params = &AttachRolePolicyInput{}
	}

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

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

type AttachRolePolicyInput struct {

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

	noSmithyDocumentSerde
}

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

	noSmithyDocumentSerde
}

func (c *Client) addOperationAttachRolePolicyMiddlewares(stack *middleware.Stack, options Options) (err error) {
	err = stack.Serialize.Add(&awsAwsquery_serializeOpAttachRolePolicy{}, middleware.After)
	if err != nil {
		return err
	}
	err = stack.Deserialize.Add(&awsAwsquery_deserializeOpAttachRolePolicy{}, middleware.After)
	if err != nil {
		return err
	}
	if err = addSetLoggerMiddleware(stack, options); err != nil {
		return err
	}
	if err = awsmiddleware.AddClientRequestIDMiddleware(stack); err != nil {
		return err
	}
	if err = smithyhttp.AddComputeContentLengthMiddleware(stack); err != nil {
		return err
	}
	if err = addResolveEndpointMiddleware(stack, options); err != nil {
		return err
	}
	if err = v4.AddComputePayloadSHA256Middleware(stack); err != nil {
		return err
	}
	if err = addRetryMiddlewares(stack, options); err != nil {
		return err
	}
	if err = addHTTPSignerV4Middleware(stack, options); err != nil {
		return err
	}
	if err = awsmiddleware.AddRawResponseToMetadata(stack); err != nil {
		return err
	}
	if err = awsmiddleware.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 = addOpAttachRolePolicyValidationMiddleware(stack); err != nil {
		return err
	}
	if err = stack.Initialize.Add(newServiceMetadataMiddleware_opAttachRolePolicy(options.Region), middleware.Before); err != nil {
		return err
	}
	if err = awsmiddleware.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
	}
	return nil
}

func newServiceMetadataMiddleware_opAttachRolePolicy(region string) *awsmiddleware.RegisterServiceMetadata {
	return &awsmiddleware.RegisterServiceMetadata{
		Region:        region,
		ServiceID:     ServiceID,
		SigningName:   "iam",
		OperationName: "AttachRolePolicy",
	}
}