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

package elasticloadbalancingv2

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/aws-sdk-go-v2/service/elasticloadbalancingv2/types"
	"github.com/aws/smithy-go/middleware"
	smithyhttp "github.com/aws/smithy-go/transport/http"
)

// Describes the specified rules or the rules for the specified listener. You must
// specify either a listener or one or more rules.
func (c *Client) DescribeRules(ctx context.Context, params *DescribeRulesInput, optFns ...func(*Options)) (*DescribeRulesOutput, error) {
	if params == nil {
		params = &DescribeRulesInput{}
	}

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

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

type DescribeRulesInput struct {

	// The Amazon Resource Name (ARN) of the listener.
	ListenerArn *string

	// The marker for the next set of results. (You received this marker from a
	// previous call.)
	Marker *string

	// The maximum number of results to return with this call.
	PageSize *int32

	// The Amazon Resource Names (ARN) of the rules.
	RuleArns []string

	noSmithyDocumentSerde
}

type DescribeRulesOutput struct {

	// If there are additional results, this is the marker for the next set of
	// results. Otherwise, this is null.
	NextMarker *string

	// Information about the rules.
	Rules []types.Rule

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

	noSmithyDocumentSerde
}

func (c *Client) addOperationDescribeRulesMiddlewares(stack *middleware.Stack, options Options) (err error) {
	err = stack.Serialize.Add(&awsAwsquery_serializeOpDescribeRules{}, middleware.After)
	if err != nil {
		return err
	}
	err = stack.Deserialize.Add(&awsAwsquery_deserializeOpDescribeRules{}, 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 = stack.Initialize.Add(newServiceMetadataMiddleware_opDescribeRules(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_opDescribeRules(region string) *awsmiddleware.RegisterServiceMetadata {
	return &awsmiddleware.RegisterServiceMetadata{
		Region:        region,
		ServiceID:     ServiceID,
		SigningName:   "elasticloadbalancing",
		OperationName: "DescribeRules",
	}
}