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

package efs

import (
	"context"
	"fmt"
	awsmiddleware "github.com/aws/aws-sdk-go-v2/aws/middleware"
	"github.com/aws/aws-sdk-go-v2/service/efs/types"
	"github.com/aws/smithy-go/middleware"
	smithyhttp "github.com/aws/smithy-go/transport/http"
	"time"
)

// Creates a new, empty file system. The operation requires a creation token in
// the request that Amazon EFS uses to ensure idempotent creation (calling the
// operation with same creation token has no effect). If a file system does not
// currently exist that is owned by the caller's Amazon Web Services account with
// the specified creation token, this operation does the following:
//
//   - Creates a new, empty file system. The file system will have an Amazon EFS
//     assigned ID, and an initial lifecycle state creating .
//
//   - Returns with the description of the created file system.
//
// Otherwise, this operation returns a FileSystemAlreadyExists error with the ID
// of the existing file system.
//
// For basic use cases, you can use a randomly generated UUID for the creation
// token.
//
// The idempotent operation allows you to retry a CreateFileSystem call without
// risk of creating an extra file system. This can happen when an initial call
// fails in a way that leaves it uncertain whether or not a file system was
// actually created. An example might be that a transport level timeout occurred or
// your connection was reset. As long as you use the same creation token, if the
// initial call had succeeded in creating a file system, the client can learn of
// its existence from the FileSystemAlreadyExists error.
//
// For more information, see [Creating a file system] in the Amazon EFS User Guide.
//
// The CreateFileSystem call returns while the file system's lifecycle state is
// still creating . You can check the file system creation status by calling the DescribeFileSystems
// operation, which among other things returns the file system state.
//
// This operation accepts an optional PerformanceMode parameter that you choose
// for your file system. We recommend generalPurpose PerformanceMode for all file
// systems. The maxIO mode is a previous generation performance type that is
// designed for highly parallelized workloads that can tolerate higher latencies
// than the generalPurpose mode. MaxIO mode is not supported for One Zone file
// systems or file systems that use Elastic throughput.
//
// The PerformanceMode can't be changed after the file system has been created.
// For more information, see [Amazon EFS performance modes].
//
// You can set the throughput mode for the file system using the ThroughputMode
// parameter.
//
// After the file system is fully created, Amazon EFS sets its lifecycle state to
// available , at which point you can create one or more mount targets for the file
// system in your VPC. For more information, see CreateMountTarget. You mount your Amazon EFS file
// system on an EC2 instances in your VPC by using the mount target. For more
// information, see [Amazon EFS: How it Works].
//
// This operation requires permissions for the elasticfilesystem:CreateFileSystem
// action.
//
// File systems can be tagged on creation. If tags are specified in the creation
// action, IAM performs additional authorization on the
// elasticfilesystem:TagResource action to verify if users have permissions to
// create tags. Therefore, you must grant explicit permissions to use the
// elasticfilesystem:TagResource action. For more information, see [Granting permissions to tag resources during creation].
//
// [Creating a file system]: https://docs.aws.amazon.com/efs/latest/ug/creating-using-create-fs.html#creating-using-create-fs-part1
// [Amazon EFS: How it Works]: https://docs.aws.amazon.com/efs/latest/ug/how-it-works.html
// [Amazon EFS performance modes]: https://docs.aws.amazon.com/efs/latest/ug/performance.html#performancemodes.html
// [Granting permissions to tag resources during creation]: https://docs.aws.amazon.com/efs/latest/ug/using-tags-efs.html#supported-iam-actions-tagging.html
func (c *Client) CreateFileSystem(ctx context.Context, params *CreateFileSystemInput, optFns ...func(*Options)) (*CreateFileSystemOutput, error) {
	if params == nil {
		params = &CreateFileSystemInput{}
	}

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

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

type CreateFileSystemInput struct {

	// A string of up to 64 ASCII characters. Amazon EFS uses this to ensure
	// idempotent creation.
	//
	// This member is required.
	CreationToken *string

	// For One Zone file systems, specify the Amazon Web Services Availability Zone in
	// which to create the file system. Use the format us-east-1a to specify the
	// Availability Zone. For more information about One Zone file systems, see [EFS file system types]in the
	// Amazon EFS User Guide.
	//
	// One Zone file systems are not available in all Availability Zones in Amazon Web
	// Services Regions where Amazon EFS is available.
	//
	// [EFS file system types]: https://docs.aws.amazon.com/efs/latest/ug/availability-durability.html#file-system-type
	AvailabilityZoneName *string

	// Specifies whether automatic backups are enabled on the file system that you are
	// creating. Set the value to true to enable automatic backups. If you are
	// creating a One Zone file system, automatic backups are enabled by default. For
	// more information, see [Automatic backups]in the Amazon EFS User Guide.
	//
	// Default is false . However, if you specify an AvailabilityZoneName , the default
	// is true .
	//
	// Backup is not available in all Amazon Web Services Regions where Amazon EFS is
	// available.
	//
	// [Automatic backups]: https://docs.aws.amazon.com/efs/latest/ug/awsbackup.html#automatic-backups
	Backup *bool

	// A Boolean value that, if true, creates an encrypted file system. When creating
	// an encrypted file system, you have the option of specifying an existing Key
	// Management Service key (KMS key). If you don't specify a KMS key, then the
	// default KMS key for Amazon EFS, /aws/elasticfilesystem , is used to protect the
	// encrypted file system.
	Encrypted *bool

	// The ID of the KMS key that you want to use to protect the encrypted file
	// system. This parameter is required only if you want to use a non-default KMS
	// key. If this parameter is not specified, the default KMS key for Amazon EFS is
	// used. You can specify a KMS key ID using the following formats:
	//
	//   - Key ID - A unique identifier of the key, for example
	//   1234abcd-12ab-34cd-56ef-1234567890ab .
	//
	//   - ARN - An Amazon Resource Name (ARN) for the key, for example
	//   arn:aws:kms:us-west-2:111122223333:key/1234abcd-12ab-34cd-56ef-1234567890ab .
	//
	//   - Key alias - A previously created display name for a key, for example
	//   alias/projectKey1 .
	//
	//   - Key alias ARN - An ARN for a key alias, for example
	//   arn:aws:kms:us-west-2:444455556666:alias/projectKey1 .
	//
	// If you use KmsKeyId , you must set the CreateFileSystemRequest$Encrypted parameter to true.
	//
	// EFS accepts only symmetric KMS keys. You cannot use asymmetric KMS keys with
	// Amazon EFS file systems.
	KmsKeyId *string

	// The performance mode of the file system. We recommend generalPurpose
	// performance mode for all file systems. File systems using the maxIO performance
	// mode can scale to higher levels of aggregate throughput and operations per
	// second with a tradeoff of slightly higher latencies for most file operations.
	// The performance mode can't be changed after the file system has been created.
	// The maxIO mode is not supported on One Zone file systems.
	//
	// Due to the higher per-operation latencies with Max I/O, we recommend using
	// General Purpose performance mode for all file systems.
	//
	// Default is generalPurpose .
	PerformanceMode types.PerformanceMode

	// The throughput, measured in mebibytes per second (MiBps), that you want to
	// provision for a file system that you're creating. Required if ThroughputMode is
	// set to provisioned . Valid values are 1-3414 MiBps, with the upper limit
	// depending on Region. To increase this limit, contact Amazon Web ServicesSupport.
	// For more information, see [Amazon EFS quotas that you can increase]in the Amazon EFS User Guide.
	//
	// [Amazon EFS quotas that you can increase]: https://docs.aws.amazon.com/efs/latest/ug/limits.html#soft-limits
	ProvisionedThroughputInMibps *float64

	// Use to create one or more tags associated with the file system. Each tag is a
	// user-defined key-value pair. Name your file system on creation by including a
	// "Key":"Name","Value":"{value}" key-value pair. Each key must be unique. For more
	// information, see [Tagging Amazon Web Services resources]in the Amazon Web Services General Reference Guide.
	//
	// [Tagging Amazon Web Services resources]: https://docs.aws.amazon.com/general/latest/gr/aws_tagging.html
	Tags []types.Tag

	// Specifies the throughput mode for the file system. The mode can be bursting ,
	// provisioned , or elastic . If you set ThroughputMode to provisioned , you must
	// also set a value for ProvisionedThroughputInMibps . After you create the file
	// system, you can decrease your file system's Provisioned throughput or change
	// between the throughput modes, with certain time restrictions. For more
	// information, see [Specifying throughput with provisioned mode]in the Amazon EFS User Guide.
	//
	// Default is bursting .
	//
	// [Specifying throughput with provisioned mode]: https://docs.aws.amazon.com/efs/latest/ug/performance.html#provisioned-throughput
	ThroughputMode types.ThroughputMode

	noSmithyDocumentSerde
}

// A description of the file system.
type CreateFileSystemOutput struct {

	// The time that the file system was created, in seconds (since
	// 1970-01-01T00:00:00Z).
	//
	// This member is required.
	CreationTime *time.Time

	// The opaque string specified in the request.
	//
	// This member is required.
	CreationToken *string

	// The ID of the file system, assigned by Amazon EFS.
	//
	// This member is required.
	FileSystemId *string

	// The lifecycle phase of the file system.
	//
	// This member is required.
	LifeCycleState types.LifeCycleState

	// The current number of mount targets that the file system has. For more
	// information, see CreateMountTarget.
	//
	// This member is required.
	NumberOfMountTargets int32

	// The Amazon Web Services account that created the file system.
	//
	// This member is required.
	OwnerId *string

	// The performance mode of the file system.
	//
	// This member is required.
	PerformanceMode types.PerformanceMode

	// The latest known metered size (in bytes) of data stored in the file system, in
	// its Value field, and the time at which that size was determined in its Timestamp
	// field. The Timestamp value is the integer number of seconds since
	// 1970-01-01T00:00:00Z. The SizeInBytes value doesn't represent the size of a
	// consistent snapshot of the file system, but it is eventually consistent when
	// there are no writes to the file system. That is, SizeInBytes represents actual
	// size only if the file system is not modified for a period longer than a couple
	// of hours. Otherwise, the value is not the exact size that the file system was at
	// any point in time.
	//
	// This member is required.
	SizeInBytes *types.FileSystemSize

	// The tags associated with the file system, presented as an array of Tag objects.
	//
	// This member is required.
	Tags []types.Tag

	// The unique and consistent identifier of the Availability Zone in which the file
	// system is located, and is valid only for One Zone file systems. For example,
	// use1-az1 is an Availability Zone ID for the us-east-1 Amazon Web Services
	// Region, and it has the same location in every Amazon Web Services account.
	AvailabilityZoneId *string

	// Describes the Amazon Web Services Availability Zone in which the file system is
	// located, and is valid only for One Zone file systems. For more information, see [Using EFS storage classes]
	// in the Amazon EFS User Guide.
	//
	// [Using EFS storage classes]: https://docs.aws.amazon.com/efs/latest/ug/storage-classes.html
	AvailabilityZoneName *string

	// A Boolean value that, if true, indicates that the file system is encrypted.
	Encrypted *bool

	// The Amazon Resource Name (ARN) for the EFS file system, in the format
	// arn:aws:elasticfilesystem:region:account-id:file-system/file-system-id .
	// Example with sample data:
	// arn:aws:elasticfilesystem:us-west-2:1111333322228888:file-system/fs-01234567
	FileSystemArn *string

	// Describes the protection on the file system.
	FileSystemProtection *types.FileSystemProtectionDescription

	// The ID of an KMS key used to protect the encrypted file system.
	KmsKeyId *string

	// You can add tags to a file system, including a Name tag. For more information,
	// see CreateFileSystem. If the file system has a Name tag, Amazon EFS returns the value in this
	// field.
	Name *string

	// The amount of provisioned throughput, measured in MiBps, for the file system.
	// Valid for file systems using ThroughputMode set to provisioned .
	ProvisionedThroughputInMibps *float64

	// Displays the file system's throughput mode. For more information, see [Throughput modes] in the
	// Amazon EFS User Guide.
	//
	// [Throughput modes]: https://docs.aws.amazon.com/efs/latest/ug/performance.html#throughput-modes
	ThroughputMode types.ThroughputMode

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

	noSmithyDocumentSerde
}

func (c *Client) addOperationCreateFileSystemMiddlewares(stack *middleware.Stack, options Options) (err error) {
	if err := stack.Serialize.Add(&setOperationInputMiddleware{}, middleware.After); err != nil {
		return err
	}
	err = stack.Serialize.Add(&awsRestjson1_serializeOpCreateFileSystem{}, middleware.After)
	if err != nil {
		return err
	}
	err = stack.Deserialize.Add(&awsRestjson1_deserializeOpCreateFileSystem{}, middleware.After)
	if err != nil {
		return err
	}
	if err := addProtocolFinalizerMiddlewares(stack, options, "CreateFileSystem"); err != nil {
		return fmt.Errorf("add protocol finalizers: %v", err)
	}

	if err = addlegacyEndpointContextSetter(stack, options); err != nil {
		return err
	}
	if err = addSetLoggerMiddleware(stack, options); err != nil {
		return err
	}
	if err = addClientRequestID(stack); 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 = addRetry(stack, options); err != nil {
		return err
	}
	if err = addRawResponseToMetadata(stack); err != nil {
		return err
	}
	if err = addRecordResponseTiming(stack); err != nil {
		return err
	}
	if err = addSpanRetryLoop(stack, options); 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 = addSetLegacyContextSigningOptionsMiddleware(stack); err != nil {
		return err
	}
	if err = addTimeOffsetBuild(stack, c); err != nil {
		return err
	}
	if err = addUserAgentRetryMode(stack, options); err != nil {
		return err
	}
	if err = addCredentialSource(stack, options); err != nil {
		return err
	}
	if err = addIdempotencyToken_opCreateFileSystemMiddleware(stack, options); err != nil {
		return err
	}
	if err = addOpCreateFileSystemValidationMiddleware(stack); err != nil {
		return err
	}
	if err = stack.Initialize.Add(newServiceMetadataMiddleware_opCreateFileSystem(options.Region), middleware.Before); err != nil {
		return err
	}
	if err = 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
	}
	if err = addDisableHTTPSMiddleware(stack, options); err != nil {
		return err
	}
	if err = addInterceptBeforeRetryLoop(stack, options); err != nil {
		return err
	}
	if err = addInterceptAttempt(stack, options); err != nil {
		return err
	}
	if err = addInterceptExecution(stack, options); err != nil {
		return err
	}
	if err = addInterceptBeforeSerialization(stack, options); err != nil {
		return err
	}
	if err = addInterceptAfterSerialization(stack, options); err != nil {
		return err
	}
	if err = addInterceptBeforeSigning(stack, options); err != nil {
		return err
	}
	if err = addInterceptAfterSigning(stack, options); err != nil {
		return err
	}
	if err = addInterceptTransmit(stack, options); err != nil {
		return err
	}
	if err = addInterceptBeforeDeserialization(stack, options); err != nil {
		return err
	}
	if err = addInterceptAfterDeserialization(stack, options); err != nil {
		return err
	}
	if err = addSpanInitializeStart(stack); err != nil {
		return err
	}
	if err = addSpanInitializeEnd(stack); err != nil {
		return err
	}
	if err = addSpanBuildRequestStart(stack); err != nil {
		return err
	}
	if err = addSpanBuildRequestEnd(stack); err != nil {
		return err
	}
	return nil
}

type idempotencyToken_initializeOpCreateFileSystem struct {
	tokenProvider IdempotencyTokenProvider
}

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

func (m *idempotencyToken_initializeOpCreateFileSystem) 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.(*CreateFileSystemInput)
	if !ok {
		return out, metadata, fmt.Errorf("expected middleware input to be of type *CreateFileSystemInput ")
	}

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

func newServiceMetadataMiddleware_opCreateFileSystem(region string) *awsmiddleware.RegisterServiceMetadata {
	return &awsmiddleware.RegisterServiceMetadata{
		Region:        region,
		ServiceID:     ServiceID,
		OperationName: "CreateFileSystem",
	}
}
