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

package elasticloadbalancingv2

import (
	"context"
	"fmt"
	awsmiddleware "github.com/aws/aws-sdk-go-v2/aws/middleware"
	"github.com/aws/aws-sdk-go-v2/service/elasticloadbalancingv2/types"
	"github.com/aws/smithy-go/middleware"
	smithyhttp "github.com/aws/smithy-go/transport/http"
)

// Creates an Application Load Balancer, Network Load Balancer, or Gateway Load
// Balancer.
//
// For more information, see the following:
//
// [Application Load Balancers]
//
// [Network Load Balancers]
//
// [Gateway Load Balancers]
//
// This operation is idempotent, which means that it completes at most one time.
// If you attempt to create multiple load balancers with the same settings, each
// call succeeds.
//
// [Gateway Load Balancers]: https://docs.aws.amazon.com/elasticloadbalancing/latest/gateway/gateway-load-balancers.html
// [Network Load Balancers]: https://docs.aws.amazon.com/elasticloadbalancing/latest/network/network-load-balancers.html
// [Application Load Balancers]: https://docs.aws.amazon.com/elasticloadbalancing/latest/application/application-load-balancers.html
func (c *Client) CreateLoadBalancer(ctx context.Context, params *CreateLoadBalancerInput, optFns ...func(*Options)) (*CreateLoadBalancerOutput, error) {
	if params == nil {
		params = &CreateLoadBalancerInput{}
	}

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

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

type CreateLoadBalancerInput struct {

	// The name of the load balancer.
	//
	// This name must be unique per region per account, can have a maximum of 32
	// characters, must contain only alphanumeric characters or hyphens, must not begin
	// or end with a hyphen, and must not begin with "internal-".
	//
	// This member is required.
	Name *string

	// [Application Load Balancers on Outposts] The ID of the customer-owned address
	// pool (CoIP pool).
	CustomerOwnedIpv4Pool *string

	// Note: Internal load balancers must use the ipv4 IP address type.
	//
	// [Application Load Balancers] The IP address type. The possible values are ipv4
	// (for only IPv4 addresses), dualstack (for IPv4 and IPv6 addresses), and
	// dualstack-without-public-ipv4 (for IPv6 only public addresses, with private IPv4
	// and IPv6 addresses).
	//
	// [Network Load Balancers] The IP address type. The possible values are ipv4 (for
	// only IPv4 addresses) and dualstack (for IPv4 and IPv6 addresses). You can’t
	// specify dualstack for a load balancer with a UDP or TCP_UDP listener.
	//
	// [Gateway Load Balancers] The IP address type. The possible values are ipv4 (for
	// only IPv4 addresses) and dualstack (for IPv4 and IPv6 addresses).
	IpAddressType types.IpAddressType

	// The nodes of an Internet-facing load balancer have public IP addresses. The DNS
	// name of an Internet-facing load balancer is publicly resolvable to the public IP
	// addresses of the nodes. Therefore, Internet-facing load balancers can route
	// requests from clients over the internet.
	//
	// The nodes of an internal load balancer have only private IP addresses. The DNS
	// name of an internal load balancer is publicly resolvable to the private IP
	// addresses of the nodes. Therefore, internal load balancers can route requests
	// only from clients with access to the VPC for the load balancer.
	//
	// The default is an Internet-facing load balancer.
	//
	// You cannot specify a scheme for a Gateway Load Balancer.
	Scheme types.LoadBalancerSchemeEnum

	// [Application Load Balancers and Network Load Balancers] The IDs of the security
	// groups for the load balancer.
	SecurityGroups []string

	// The IDs of the subnets. You can specify only one subnet per Availability Zone.
	// You must specify either subnets or subnet mappings, but not both.
	//
	// [Application Load Balancers] You must specify subnets from at least two
	// Availability Zones. You cannot specify Elastic IP addresses for your subnets.
	//
	// [Application Load Balancers on Outposts] You must specify one Outpost subnet.
	//
	// [Application Load Balancers on Local Zones] You can specify subnets from one or
	// more Local Zones.
	//
	// [Network Load Balancers] You can specify subnets from one or more Availability
	// Zones. You can specify one Elastic IP address per subnet if you need static IP
	// addresses for your internet-facing load balancer. For internal load balancers,
	// you can specify one private IP address per subnet from the IPv4 range of the
	// subnet. For internet-facing load balancer, you can specify one IPv6 address per
	// subnet.
	//
	// [Gateway Load Balancers] You can specify subnets from one or more Availability
	// Zones. You cannot specify Elastic IP addresses for your subnets.
	SubnetMappings []types.SubnetMapping

	// The IDs of the subnets. You can specify only one subnet per Availability Zone.
	// You must specify either subnets or subnet mappings, but not both. To specify an
	// Elastic IP address, specify subnet mappings instead of subnets.
	//
	// [Application Load Balancers] You must specify subnets from at least two
	// Availability Zones.
	//
	// [Application Load Balancers on Outposts] You must specify one Outpost subnet.
	//
	// [Application Load Balancers on Local Zones] You can specify subnets from one or
	// more Local Zones.
	//
	// [Network Load Balancers] You can specify subnets from one or more Availability
	// Zones.
	//
	// [Gateway Load Balancers] You can specify subnets from one or more Availability
	// Zones.
	Subnets []string

	// The tags to assign to the load balancer.
	Tags []types.Tag

	// The type of load balancer. The default is application .
	Type types.LoadBalancerTypeEnum

	noSmithyDocumentSerde
}

type CreateLoadBalancerOutput struct {

	// Information about the load balancer.
	LoadBalancers []types.LoadBalancer

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

	noSmithyDocumentSerde
}

func (c *Client) addOperationCreateLoadBalancerMiddlewares(stack *middleware.Stack, options Options) (err error) {
	if err := stack.Serialize.Add(&setOperationInputMiddleware{}, middleware.After); err != nil {
		return err
	}
	err = stack.Serialize.Add(&awsAwsquery_serializeOpCreateLoadBalancer{}, middleware.After)
	if err != nil {
		return err
	}
	err = stack.Deserialize.Add(&awsAwsquery_deserializeOpCreateLoadBalancer{}, middleware.After)
	if err != nil {
		return err
	}
	if err := addProtocolFinalizerMiddlewares(stack, options, "CreateLoadBalancer"); 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 = 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 = addOpCreateLoadBalancerValidationMiddleware(stack); err != nil {
		return err
	}
	if err = stack.Initialize.Add(newServiceMetadataMiddleware_opCreateLoadBalancer(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
	}
	return nil
}

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