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

package emr

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/emr/types"
	"github.com/aws/smithy-go/middleware"
	smithyhttp "github.com/aws/smithy-go/transport/http"
)

// ModifyInstanceGroups modifies the number of nodes and configuration settings of
// an instance group. The input parameters include the new target instance count
// for the group and the instance group ID. The call will either succeed or fail
// atomically.
func (c *Client) ModifyInstanceGroups(ctx context.Context, params *ModifyInstanceGroupsInput, optFns ...func(*Options)) (*ModifyInstanceGroupsOutput, error) {
	if params == nil {
		params = &ModifyInstanceGroupsInput{}
	}

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

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

// Change the size of some instance groups.
type ModifyInstanceGroupsInput struct {

	// The ID of the cluster to which the instance group belongs.
	ClusterId *string

	// Instance groups to change.
	InstanceGroups []types.InstanceGroupModifyConfig

	noSmithyDocumentSerde
}

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

	noSmithyDocumentSerde
}

func (c *Client) addOperationModifyInstanceGroupsMiddlewares(stack *middleware.Stack, options Options) (err error) {
	err = stack.Serialize.Add(&awsAwsjson11_serializeOpModifyInstanceGroups{}, middleware.After)
	if err != nil {
		return err
	}
	err = stack.Deserialize.Add(&awsAwsjson11_deserializeOpModifyInstanceGroups{}, 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); err != nil {
		return err
	}
	if err = smithyhttp.AddErrorCloseResponseBodyMiddleware(stack); err != nil {
		return err
	}
	if err = smithyhttp.AddCloseResponseBodyMiddleware(stack); err != nil {
		return err
	}
	if err = addOpModifyInstanceGroupsValidationMiddleware(stack); err != nil {
		return err
	}
	if err = stack.Initialize.Add(newServiceMetadataMiddleware_opModifyInstanceGroups(options.Region), 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
	}
	return nil
}

func newServiceMetadataMiddleware_opModifyInstanceGroups(region string) *awsmiddleware.RegisterServiceMetadata {
	return &awsmiddleware.RegisterServiceMetadata{
		Region:        region,
		ServiceID:     ServiceID,
		SigningName:   "elasticmapreduce",
		OperationName: "ModifyInstanceGroups",
	}
}
