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

package cloudformation

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

// Creates stack instances for the specified accounts, within the specified Amazon
// Web Services Regions. A stack instance refers to a stack in a specific account
// and Region. You must specify at least one value for either Accounts or
// DeploymentTargets, and you must specify at least one value for Regions.
func (c *Client) CreateStackInstances(ctx context.Context, params *CreateStackInstancesInput, optFns ...func(*Options)) (*CreateStackInstancesOutput, error) {
	if params == nil {
		params = &CreateStackInstancesInput{}
	}

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

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

type CreateStackInstancesInput struct {

	// The names of one or more Amazon Web Services Regions where you want to create
	// stack instances using the specified Amazon Web Services accounts.
	//
	// This member is required.
	Regions []string

	// The name or unique ID of the stack set that you want to create stack instances
	// from.
	//
	// This member is required.
	StackSetName *string

	// [Self-managed permissions] The names of one or more Amazon Web Services accounts
	// that you want to create stack instances in the specified Region(s) for. You can
	// specify Accounts or DeploymentTargets, but not both.
	Accounts []string

	// [Service-managed permissions] Specifies whether you are acting as an account
	// administrator in the organization's management account or as a delegated
	// administrator in a member account. By default, SELF is specified. Use SELF for
	// stack sets with self-managed permissions.
	//
	// * If you are signed in to the
	// management account, specify SELF.
	//
	// * If you are signed in to a delegated
	// administrator account, specify DELEGATED_ADMIN. Your Amazon Web Services account
	// must be registered as a delegated administrator in the management account. For
	// more information, see Register a delegated administrator
	// (https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/stacksets-orgs-delegated-admin.html)
	// in the CloudFormation User Guide.
	CallAs types.CallAs

	// [Service-managed permissions] The Organizations accounts for which to create
	// stack instances in the specified Amazon Web Services Regions. You can specify
	// Accounts or DeploymentTargets, but not both.
	DeploymentTargets *types.DeploymentTargets

	// The unique identifier for this stack set operation. The operation ID also
	// functions as an idempotency token, to ensure that CloudFormation performs the
	// stack set operation only once, even if you retry the request multiple times. You
	// might retry stack set operation requests to ensure that CloudFormation
	// successfully received them. If you don't specify an operation ID, the SDK
	// generates one automatically. Repeating this stack set operation with a new
	// operation ID retries all stack instances whose status is OUTDATED.
	OperationId *string

	// Preferences for how CloudFormation performs this stack set operation.
	OperationPreferences *types.StackSetOperationPreferences

	// A list of stack set parameters whose values you want to override in the selected
	// stack instances. Any overridden parameter values will be applied to all stack
	// instances in the specified accounts and Amazon Web Services Regions. When
	// specifying parameters and their values, be aware of how CloudFormation sets
	// parameter values during stack instance operations:
	//
	// * To override the current
	// value for a parameter, include the parameter and specify its value.
	//
	// * To leave
	// an overridden parameter set to its present value, include the parameter and
	// specify UsePreviousValue as true. (You can't specify both a value and set
	// UsePreviousValue to true.)
	//
	// * To set an overridden parameter back to the value
	// specified in the stack set, specify a parameter list but don't include the
	// parameter in the list.
	//
	// * To leave all parameters set to their present values,
	// don't specify this property at all.
	//
	// During stack set updates, any parameter
	// values overridden for a stack instance aren't updated, but retain their
	// overridden value. You can only override the parameter values that are specified
	// in the stack set; to add or delete a parameter itself, use UpdateStackSet
	// (https://docs.aws.amazon.com/AWSCloudFormation/latest/APIReference/API_UpdateStackSet.html)
	// to update the stack set template.
	ParameterOverrides []types.Parameter

	noSmithyDocumentSerde
}

type CreateStackInstancesOutput struct {

	// The unique identifier for this stack set operation.
	OperationId *string

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

	noSmithyDocumentSerde
}

func (c *Client) addOperationCreateStackInstancesMiddlewares(stack *middleware.Stack, options Options) (err error) {
	err = stack.Serialize.Add(&awsAwsquery_serializeOpCreateStackInstances{}, middleware.After)
	if err != nil {
		return err
	}
	err = stack.Deserialize.Add(&awsAwsquery_deserializeOpCreateStackInstances{}, 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 = addIdempotencyToken_opCreateStackInstancesMiddleware(stack, options); err != nil {
		return err
	}
	if err = addOpCreateStackInstancesValidationMiddleware(stack); err != nil {
		return err
	}
	if err = stack.Initialize.Add(newServiceMetadataMiddleware_opCreateStackInstances(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
}

type idempotencyToken_initializeOpCreateStackInstances struct {
	tokenProvider IdempotencyTokenProvider
}

func (*idempotencyToken_initializeOpCreateStackInstances) ID() string {
	return "OperationIdempotencyTokenAutoFill"
}

func (m *idempotencyToken_initializeOpCreateStackInstances) HandleInitialize(ctx context.Context, in middleware.InitializeInput, next middleware.InitializeHandler) (
	out middleware.InitializeOutput, metadata middleware.Metadata, err error,
) {
	if m.tokenProvider == nil {
		return next.HandleInitialize(ctx, in)
	}

	input, ok := in.Parameters.(*CreateStackInstancesInput)
	if !ok {
		return out, metadata, fmt.Errorf("expected middleware input to be of type *CreateStackInstancesInput ")
	}

	if input.OperationId == nil {
		t, err := m.tokenProvider.GetIdempotencyToken()
		if err != nil {
			return out, metadata, err
		}
		input.OperationId = &t
	}
	return next.HandleInitialize(ctx, in)
}
func addIdempotencyToken_opCreateStackInstancesMiddleware(stack *middleware.Stack, cfg Options) error {
	return stack.Initialize.Add(&idempotencyToken_initializeOpCreateStackInstances{tokenProvider: cfg.IdempotencyTokenProvider}, middleware.Before)
}

func newServiceMetadataMiddleware_opCreateStackInstances(region string) *awsmiddleware.RegisterServiceMetadata {
	return &awsmiddleware.RegisterServiceMetadata{
		Region:        region,
		ServiceID:     ServiceID,
		SigningName:   "cloudformation",
		OperationName: "CreateStackInstances",
	}
}
