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

package elasticache

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

// Creates a Redis (cluster mode disabled) or a Redis (cluster mode enabled)
// replication group. This API can be used to create a standalone regional
// replication group or a secondary replication group associated with a Global
// datastore. A Redis (cluster mode disabled) replication group is a collection of
// clusters, where one of the clusters is a read/write primary and the others are
// read-only replicas. Writes to the primary are asynchronously propagated to the
// replicas. A Redis cluster-mode enabled cluster is comprised of from 1 to 90
// shards (API/CLI: node groups). Each shard has a primary node and up to 5
// read-only replica nodes. The configuration can range from 90 shards and 0
// replicas to 15 shards and 5 replicas, which is the maximum number or replicas
// allowed. The node or shard limit can be increased to a maximum of 500 per
// cluster if the Redis engine version is 5.0.6 or higher. For example, you can
// choose to configure a 500 node cluster that ranges between 83 shards (one
// primary and 5 replicas per shard) and 500 shards (single primary and no
// replicas). Make sure there are enough available IP addresses to accommodate the
// increase. Common pitfalls include the subnets in the subnet group have too small
// a CIDR range or the subnets are shared and heavily used by other clusters. For
// more information, see Creating a Subnet Group (https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/SubnetGroups.Creating.html)
// . For versions below 5.0.6, the limit is 250 per cluster. To request a limit
// increase, see Amazon Service Limits (https://docs.aws.amazon.com/general/latest/gr/aws_service_limits.html)
// and choose the limit type Nodes per cluster per instance type. When a Redis
// (cluster mode disabled) replication group has been successfully created, you can
// add one or more read replicas to it, up to a total of 5 read replicas. If you
// need to increase or decrease the number of node groups (console: shards), you
// can avail yourself of ElastiCache for Redis' scaling. For more information, see
// Scaling ElastiCache for Redis Clusters (https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/Scaling.html)
// in the ElastiCache User Guide. This operation is valid for Redis only.
func (c *Client) CreateReplicationGroup(ctx context.Context, params *CreateReplicationGroupInput, optFns ...func(*Options)) (*CreateReplicationGroupOutput, error) {
	if params == nil {
		params = &CreateReplicationGroupInput{}
	}

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

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

// Represents the input of a CreateReplicationGroup operation.
type CreateReplicationGroupInput struct {

	// A user-created description for the replication group.
	//
	// This member is required.
	ReplicationGroupDescription *string

	// The replication group identifier. This parameter is stored as a lowercase
	// string. Constraints:
	//   - A name must contain from 1 to 40 alphanumeric characters or hyphens.
	//   - The first character must be a letter.
	//   - A name cannot end with a hyphen or contain two consecutive hyphens.
	//
	// This member is required.
	ReplicationGroupId *string

	// A flag that enables encryption at rest when set to true . You cannot modify the
	// value of AtRestEncryptionEnabled after the replication group is created. To
	// enable encryption at rest on a replication group you must set
	// AtRestEncryptionEnabled to true when you create the replication group.
	// Required: Only available when creating a replication group in an Amazon VPC
	// using redis version 3.2.6 , 4.x or later. Default: false
	AtRestEncryptionEnabled *bool

	// Reserved parameter. The password used to access a password protected server.
	// AuthToken can be specified only on replication groups where
	// TransitEncryptionEnabled is true . For HIPAA compliance, you must specify
	// TransitEncryptionEnabled as true , an AuthToken , and a CacheSubnetGroup .
	// Password constraints:
	//   - Must be only printable ASCII characters.
	//   - Must be at least 16 characters and no more than 128 characters in length.
	//   - The only permitted printable special characters are !, &, #, $, ^, <, >,
	//   and -. Other printable special characters cannot be used in the AUTH token.
	// For more information, see AUTH password (http://redis.io/commands/AUTH) at
	// http://redis.io/commands/AUTH.
	AuthToken *string

	//  If you are running Redis engine version 6.0 or later, set this parameter to
	// yes if you want to opt-in to the next auto minor version upgrade campaign. This
	// parameter is disabled for previous versions.
	AutoMinorVersionUpgrade *bool

	// Specifies whether a read-only replica is automatically promoted to read/write
	// primary if the existing primary fails. AutomaticFailoverEnabled must be enabled
	// for Redis (cluster mode enabled) replication groups. Default: false
	AutomaticFailoverEnabled *bool

	// The compute and memory capacity of the nodes in the node group (shard). The
	// following node types are supported by ElastiCache. Generally speaking, the
	// current generation types provide more memory and computational power at lower
	// cost when compared to their equivalent previous generation counterparts.
	//   - General purpose:
	//   - Current generation: M7g node types: cache.m7g.large , cache.m7g.xlarge ,
	//   cache.m7g.2xlarge , cache.m7g.4xlarge , cache.m7g.8xlarge , cache.m7g.12xlarge
	//   , cache.m7g.16xlarge For region availability, see Supported Node Types (https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/CacheNodes.SupportedTypes.html#CacheNodes.SupportedTypesByRegion)
	//   M6g node types (available only for Redis engine version 5.0.6 onward and for
	//   Memcached engine version 1.5.16 onward): cache.m6g.large , cache.m6g.xlarge ,
	//   cache.m6g.2xlarge , cache.m6g.4xlarge , cache.m6g.8xlarge , cache.m6g.12xlarge
	//   , cache.m6g.16xlarge M5 node types: cache.m5.large , cache.m5.xlarge ,
	//   cache.m5.2xlarge , cache.m5.4xlarge , cache.m5.12xlarge , cache.m5.24xlarge M4
	//   node types: cache.m4.large , cache.m4.xlarge , cache.m4.2xlarge ,
	//   cache.m4.4xlarge , cache.m4.10xlarge T4g node types (available only for Redis
	//   engine version 5.0.6 onward and Memcached engine version 1.5.16 onward):
	//   cache.t4g.micro , cache.t4g.small , cache.t4g.medium T3 node types:
	//   cache.t3.micro , cache.t3.small , cache.t3.medium T2 node types:
	//   cache.t2.micro , cache.t2.small , cache.t2.medium
	//   - Previous generation: (not recommended. Existing clusters are still
	//   supported but creation of new clusters is not supported for these types.) T1
	//   node types: cache.t1.micro M1 node types: cache.m1.small , cache.m1.medium ,
	//   cache.m1.large , cache.m1.xlarge M3 node types: cache.m3.medium ,
	//   cache.m3.large , cache.m3.xlarge , cache.m3.2xlarge
	//   - Compute optimized:
	//   - Previous generation: (not recommended. Existing clusters are still
	//   supported but creation of new clusters is not supported for these types.) C1
	//   node types: cache.c1.xlarge
	//   - Memory optimized:
	//   - Current generation: R7g node types: cache.r7g.large , cache.r7g.xlarge ,
	//   cache.r7g.2xlarge , cache.r7g.4xlarge , cache.r7g.8xlarge , cache.r7g.12xlarge
	//   , cache.r7g.16xlarge For region availability, see Supported Node Types (https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/CacheNodes.SupportedTypes.html#CacheNodes.SupportedTypesByRegion)
	//   R6g node types (available only for Redis engine version 5.0.6 onward and for
	//   Memcached engine version 1.5.16 onward): cache.r6g.large , cache.r6g.xlarge ,
	//   cache.r6g.2xlarge , cache.r6g.4xlarge , cache.r6g.8xlarge , cache.r6g.12xlarge
	//   , cache.r6g.16xlarge R5 node types: cache.r5.large , cache.r5.xlarge ,
	//   cache.r5.2xlarge , cache.r5.4xlarge , cache.r5.12xlarge , cache.r5.24xlarge R4
	//   node types: cache.r4.large , cache.r4.xlarge , cache.r4.2xlarge ,
	//   cache.r4.4xlarge , cache.r4.8xlarge , cache.r4.16xlarge
	//   - Previous generation: (not recommended. Existing clusters are still
	//   supported but creation of new clusters is not supported for these types.) M2
	//   node types: cache.m2.xlarge , cache.m2.2xlarge , cache.m2.4xlarge R3 node
	//   types: cache.r3.large , cache.r3.xlarge , cache.r3.2xlarge ,
	//
	// cache.r3.4xlarge , cache.r3.8xlarge
	// Additional node type info
	//   - All current generation instance types are created in Amazon VPC by default.
	//   - Redis append-only files (AOF) are not supported for T1 or T2 instances.
	//   - Redis Multi-AZ with automatic failover is not supported on T1 instances.
	//   - Redis configuration variables appendonly and appendfsync are not supported
	//   on Redis version 2.8.22 and later.
	CacheNodeType *string

	// The name of the parameter group to associate with this replication group. If
	// this argument is omitted, the default cache parameter group for the specified
	// engine is used. If you are running Redis version 3.2.4 or later, only one node
	// group (shard), and want to use a default parameter group, we recommend that you
	// specify the parameter group by name.
	//   - To create a Redis (cluster mode disabled) replication group, use
	//   CacheParameterGroupName=default.redis3.2 .
	//   - To create a Redis (cluster mode enabled) replication group, use
	//   CacheParameterGroupName=default.redis3.2.cluster.on .
	CacheParameterGroupName *string

	// A list of cache security group names to associate with this replication group.
	CacheSecurityGroupNames []string

	// The name of the cache subnet group to be used for the replication group. If
	// you're going to launch your cluster in an Amazon VPC, you need to create a
	// subnet group before you start creating a cluster. For more information, see
	// Subnets and Subnet Groups (https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/SubnetGroups.html)
	// .
	CacheSubnetGroupName *string

	// Enabled or Disabled. To modify cluster mode from Disabled to Enabled, you must
	// first set the cluster mode to Compatible. Compatible mode allows your Redis
	// clients to connect using both cluster mode enabled and cluster mode disabled.
	// After you migrate all Redis clients to use cluster mode enabled, you can then
	// complete cluster mode configuration and set the cluster mode to Enabled.
	ClusterMode types.ClusterMode

	// Enables data tiering. Data tiering is only supported for replication groups
	// using the r6gd node type. This parameter must be set to true when using r6gd
	// nodes. For more information, see Data tiering (https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/data-tiering.html)
	// .
	DataTieringEnabled *bool

	// The name of the cache engine to be used for the clusters in this replication
	// group. The value must be set to Redis .
	Engine *string

	// The version number of the cache engine to be used for the clusters in this
	// replication group. To view the supported cache engine versions, use the
	// DescribeCacheEngineVersions operation. Important: You can upgrade to a newer
	// engine version (see Selecting a Cache Engine and Version (https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/SelectEngine.html#VersionManagement)
	// ) in the ElastiCache User Guide, but you cannot downgrade to an earlier engine
	// version. If you want to use an earlier engine version, you must delete the
	// existing cluster or replication group and create it anew with the earlier engine
	// version.
	EngineVersion *string

	// The name of the Global datastore
	GlobalReplicationGroupId *string

	// The network type you choose when creating a replication group, either ipv4 |
	// ipv6 . IPv6 is supported for workloads using Redis engine version 6.2 onward or
	// Memcached engine version 1.6.6 on all instances built on the Nitro system (http://aws.amazon.com/ec2/nitro/)
	// .
	IpDiscovery types.IpDiscovery

	// The ID of the KMS key used to encrypt the disk in the cluster.
	KmsKeyId *string

	// Specifies the destination, format and type of the logs.
	LogDeliveryConfigurations []types.LogDeliveryConfigurationRequest

	// A flag indicating if you have Multi-AZ enabled to enhance fault tolerance. For
	// more information, see Minimizing Downtime: Multi-AZ (http://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/AutoFailover.html)
	// .
	MultiAZEnabled *bool

	// Must be either ipv4 | ipv6 | dual_stack . IPv6 is supported for workloads using
	// Redis engine version 6.2 onward or Memcached engine version 1.6.6 on all
	// instances built on the Nitro system (http://aws.amazon.com/ec2/nitro/) .
	NetworkType types.NetworkType

	// A list of node group (shard) configuration options. Each node group (shard)
	// configuration has the following members: PrimaryAvailabilityZone ,
	// ReplicaAvailabilityZones , ReplicaCount , and Slots . If you're creating a Redis
	// (cluster mode disabled) or a Redis (cluster mode enabled) replication group, you
	// can use this parameter to individually configure each node group (shard), or you
	// can omit this parameter. However, it is required when seeding a Redis (cluster
	// mode enabled) cluster from a S3 rdb file. You must configure each node group
	// (shard) using this parameter because you must specify the slots for each node
	// group.
	NodeGroupConfiguration []types.NodeGroupConfiguration

	// The Amazon Resource Name (ARN) of the Amazon Simple Notification Service (SNS)
	// topic to which notifications are sent. The Amazon SNS topic owner must be the
	// same as the cluster owner.
	NotificationTopicArn *string

	// The number of clusters this replication group initially has. This parameter is
	// not used if there is more than one node group (shard). You should use
	// ReplicasPerNodeGroup instead. If AutomaticFailoverEnabled is true , the value of
	// this parameter must be at least 2. If AutomaticFailoverEnabled is false you can
	// omit this parameter (it will default to 1), or you can explicitly set it to a
	// value between 2 and 6. The maximum permitted value for NumCacheClusters is 6 (1
	// primary plus 5 replicas).
	NumCacheClusters *int32

	// An optional parameter that specifies the number of node groups (shards) for
	// this Redis (cluster mode enabled) replication group. For Redis (cluster mode
	// disabled) either omit this parameter or set it to 1. Default: 1
	NumNodeGroups *int32

	// The port number on which each member of the replication group accepts
	// connections.
	Port *int32

	// A list of EC2 Availability Zones in which the replication group's clusters are
	// created. The order of the Availability Zones in the list is the order in which
	// clusters are allocated. The primary cluster is created in the first AZ in the
	// list. This parameter is not used if there is more than one node group (shard).
	// You should use NodeGroupConfiguration instead. If you are creating your
	// replication group in an Amazon VPC (recommended), you can only locate clusters
	// in Availability Zones associated with the subnets in the selected subnet group.
	// The number of Availability Zones listed must equal the value of NumCacheClusters
	// . Default: system chosen Availability Zones.
	PreferredCacheClusterAZs []string

	// Specifies the weekly time range during which maintenance on the cluster is
	// performed. It is specified as a range in the format ddd:hh24:mi-ddd:hh24:mi (24H
	// Clock UTC). The minimum maintenance window is a 60 minute period. Valid values
	// for ddd are: Specifies the weekly time range during which maintenance on the
	// cluster is performed. It is specified as a range in the format
	// ddd:hh24:mi-ddd:hh24:mi (24H Clock UTC). The minimum maintenance window is a 60
	// minute period. Valid values for ddd are:
	//   - sun
	//   - mon
	//   - tue
	//   - wed
	//   - thu
	//   - fri
	//   - sat
	// Example: sun:23:00-mon:01:30
	PreferredMaintenanceWindow *string

	// The identifier of the cluster that serves as the primary for this replication
	// group. This cluster must already exist and have a status of available . This
	// parameter is not required if NumCacheClusters , NumNodeGroups , or
	// ReplicasPerNodeGroup is specified.
	PrimaryClusterId *string

	// An optional parameter that specifies the number of replica nodes in each node
	// group (shard). Valid values are 0 to 5.
	ReplicasPerNodeGroup *int32

	// One or more Amazon VPC security groups associated with this replication group.
	// Use this parameter only when you are creating a replication group in an Amazon
	// Virtual Private Cloud (Amazon VPC).
	SecurityGroupIds []string

	// The name of the snapshot used to create a replication group. Available for
	// Redis only.
	ServerlessCacheSnapshotName *string

	// A list of Amazon Resource Names (ARN) that uniquely identify the Redis RDB
	// snapshot files stored in Amazon S3. The snapshot files are used to populate the
	// new replication group. The Amazon S3 object name in the ARN cannot contain any
	// commas. The new replication group will have the number of node groups (console:
	// shards) specified by the parameter NumNodeGroups or the number of node groups
	// configured by NodeGroupConfiguration regardless of the number of ARNs specified
	// here. Example of an Amazon S3 ARN: arn:aws:s3:::my_bucket/snapshot1.rdb
	SnapshotArns []string

	// The name of a snapshot from which to restore data into the new replication
	// group. The snapshot status changes to restoring while the new replication group
	// is being created.
	SnapshotName *string

	// The number of days for which ElastiCache retains automatic snapshots before
	// deleting them. For example, if you set SnapshotRetentionLimit to 5, a snapshot
	// that was taken today is retained for 5 days before being deleted. Default: 0
	// (i.e., automatic backups are disabled for this cluster).
	SnapshotRetentionLimit *int32

	// The daily time range (in UTC) during which ElastiCache begins taking a daily
	// snapshot of your node group (shard). Example: 05:00-09:00 If you do not specify
	// this parameter, ElastiCache automatically chooses an appropriate time range.
	SnapshotWindow *string

	// A list of tags to be added to this resource. Tags are comma-separated key,value
	// pairs (e.g. Key= myKey , Value= myKeyValue . You can include multiple tags as
	// shown following: Key= myKey , Value= myKeyValue Key= mySecondKey , Value=
	// mySecondKeyValue . Tags on replication groups will be replicated to all nodes.
	Tags []types.Tag

	// A flag that enables in-transit encryption when set to true . This parameter is
	// valid only if the Engine parameter is redis , the EngineVersion parameter is
	// 3.2.6 , 4.x or later, and the cluster is being created in an Amazon VPC. If you
	// enable in-transit encryption, you must also specify a value for CacheSubnetGroup
	// . Required: Only available when creating a replication group in an Amazon VPC
	// using redis version 3.2.6 , 4.x or later. Default: false For HIPAA compliance,
	// you must specify TransitEncryptionEnabled as true , an AuthToken , and a
	// CacheSubnetGroup .
	TransitEncryptionEnabled *bool

	// A setting that allows you to migrate your clients to use in-transit encryption,
	// with no downtime. When setting TransitEncryptionEnabled to true , you can set
	// your TransitEncryptionMode to preferred in the same request, to allow both
	// encrypted and unencrypted connections at the same time. Once you migrate all
	// your Redis clients to use encrypted connections you can modify the value to
	// required to allow encrypted connections only. Setting TransitEncryptionMode to
	// required is a two-step process that requires you to first set the
	// TransitEncryptionMode to preferred , after that you can set
	// TransitEncryptionMode to required . This process will not trigger the
	// replacement of the replication group.
	TransitEncryptionMode types.TransitEncryptionMode

	// The user group to associate with the replication group.
	UserGroupIds []string

	noSmithyDocumentSerde
}

type CreateReplicationGroupOutput struct {

	// Contains all of the attributes of a specific Redis replication group.
	ReplicationGroup *types.ReplicationGroup

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

	noSmithyDocumentSerde
}

func (c *Client) addOperationCreateReplicationGroupMiddlewares(stack *middleware.Stack, options Options) (err error) {
	if err := stack.Serialize.Add(&setOperationInputMiddleware{}, middleware.After); err != nil {
		return err
	}
	err = stack.Serialize.Add(&awsAwsquery_serializeOpCreateReplicationGroup{}, middleware.After)
	if err != nil {
		return err
	}
	err = stack.Deserialize.Add(&awsAwsquery_deserializeOpCreateReplicationGroup{}, middleware.After)
	if err != nil {
		return err
	}
	if err := addProtocolFinalizerMiddlewares(stack, options, "CreateReplicationGroup"); 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 = 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 = 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 = addSetLegacyContextSigningOptionsMiddleware(stack); err != nil {
		return err
	}
	if err = addOpCreateReplicationGroupValidationMiddleware(stack); err != nil {
		return err
	}
	if err = stack.Initialize.Add(newServiceMetadataMiddleware_opCreateReplicationGroup(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
	}
	if err = addDisableHTTPSMiddleware(stack, options); err != nil {
		return err
	}
	return nil
}

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