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

package ec2

import (
	"context"
	"fmt"
	awsmiddleware "github.com/aws/aws-sdk-go-v2/aws/middleware"
	"github.com/aws/aws-sdk-go-v2/service/ec2/types"
	"github.com/aws/smithy-go/middleware"
	smithyhttp "github.com/aws/smithy-go/transport/http"
)

// Describes the specified instance types. By default, all instance types for the
// current Region are described. Alternatively, you can filter the results.
func (c *Client) DescribeInstanceTypes(ctx context.Context, params *DescribeInstanceTypesInput, optFns ...func(*Options)) (*DescribeInstanceTypesOutput, error) {
	if params == nil {
		params = &DescribeInstanceTypesInput{}
	}

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

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

type DescribeInstanceTypesInput struct {

	// Checks whether you have the required permissions for the action, without
	// actually making the request, and provides an error response. If you have the
	// required permissions, the error response is DryRunOperation . Otherwise, it is
	// UnauthorizedOperation .
	DryRun *bool

	// One or more filters. Filter names and values are case-sensitive.
	//
	//   - auto-recovery-supported - Indicates whether Amazon CloudWatch action based
	//   recovery is supported ( true | false ).
	//
	//   - bare-metal - Indicates whether it is a bare metal instance type ( true |
	//   false ).
	//
	//   - burstable-performance-supported - Indicates whether the instance type is a
	//   burstable performance T instance type ( true | false ).
	//
	//   - current-generation - Indicates whether this instance type is the latest
	//   generation instance type of an instance family ( true | false ).
	//
	//   - ebs-info.ebs-optimized-info.baseline-bandwidth-in-mbps - The baseline
	//   bandwidth performance for an EBS-optimized instance type, in Mbps.
	//
	//   - ebs-info.ebs-optimized-info.baseline-iops - The baseline input/output
	//   storage operations per second for an EBS-optimized instance type.
	//
	//   - ebs-info.ebs-optimized-info.baseline-throughput-in-mbps - The baseline
	//   throughput performance for an EBS-optimized instance type, in MB/s.
	//
	//   - ebs-info.ebs-optimized-info.maximum-bandwidth-in-mbps - The maximum
	//   bandwidth performance for an EBS-optimized instance type, in Mbps.
	//
	//   - ebs-info.ebs-optimized-info.maximum-iops - The maximum input/output storage
	//   operations per second for an EBS-optimized instance type.
	//
	//   - ebs-info.ebs-optimized-info.maximum-throughput-in-mbps - The maximum
	//   throughput performance for an EBS-optimized instance type, in MB/s.
	//
	//   - ebs-info.ebs-optimized-support - Indicates whether the instance type is
	//   EBS-optimized ( supported | unsupported | default ).
	//
	//   - ebs-info.encryption-support - Indicates whether EBS encryption is supported (
	//   supported | unsupported ).
	//
	//   - ebs-info.nvme-support - Indicates whether non-volatile memory express (NVMe)
	//   is supported for EBS volumes ( required | supported | unsupported ).
	//
	//   - free-tier-eligible - Indicates whether the instance type is eligible to use
	//   in the free tier ( true | false ).
	//
	//   - hibernation-supported - Indicates whether On-Demand hibernation is supported
	//   ( true | false ).
	//
	//   - hypervisor - The hypervisor ( nitro | xen ).
	//
	//   - instance-storage-info.disk.count - The number of local disks.
	//
	//   - instance-storage-info.disk.size-in-gb - The storage size of each instance
	//   storage disk, in GB.
	//
	//   - instance-storage-info.disk.type - The storage technology for the local
	//   instance storage disks ( hdd | ssd ).
	//
	//   - instance-storage-info.encryption-support - Indicates whether data is
	//   encrypted at rest ( required | supported | unsupported ).
	//
	//   - instance-storage-info.nvme-support - Indicates whether non-volatile memory
	//   express (NVMe) is supported for instance store ( required | supported |
	//   unsupported ).
	//
	//   - instance-storage-info.total-size-in-gb - The total amount of storage
	//   available from all local instance storage, in GB.
	//
	//   - instance-storage-supported - Indicates whether the instance type has local
	//   instance storage ( true | false ).
	//
	//   - instance-type - The instance type (for example c5.2xlarge or c5*).
	//
	//   - memory-info.size-in-mib - The memory size.
	//
	//   - network-info.efa-info.maximum-efa-interfaces - The maximum number of Elastic
	//   Fabric Adapters (EFAs) per instance.
	//
	//   - network-info.efa-supported - Indicates whether the instance type supports
	//   Elastic Fabric Adapter (EFA) ( true | false ).
	//
	//   - network-info.ena-support - Indicates whether Elastic Network Adapter (ENA)
	//   is supported or required ( required | supported | unsupported ).
	//
	//   - network-info.encryption-in-transit-supported - Indicates whether the
	//   instance type automatically encrypts in-transit traffic between instances (
	//   true | false ).
	//
	//   - network-info.ipv4-addresses-per-interface - The maximum number of private
	//   IPv4 addresses per network interface.
	//
	//   - network-info.ipv6-addresses-per-interface - The maximum number of private
	//   IPv6 addresses per network interface.
	//
	//   - network-info.ipv6-supported - Indicates whether the instance type supports
	//   IPv6 ( true | false ).
	//
	//   - network-info.maximum-network-cards - The maximum number of network cards per
	//   instance.
	//
	//   - network-info.maximum-network-interfaces - The maximum number of network
	//   interfaces per instance.
	//
	//   - network-info.network-performance - The network performance (for example, "25
	//   Gigabit").
	//
	//   - nitro-enclaves-support - Indicates whether Nitro Enclaves is supported (
	//   supported | unsupported ).
	//
	//   - nitro-tpm-support - Indicates whether NitroTPM is supported ( supported |
	//   unsupported ).
	//
	//   - nitro-tpm-info.supported-versions - The supported NitroTPM version ( 2.0 ).
	//
	//   - processor-info.supported-architecture - The CPU architecture ( arm64 | i386
	//   | x86_64 ).
	//
	//   - processor-info.sustained-clock-speed-in-ghz - The CPU clock speed, in GHz.
	//
	//   - processor-info.supported-features - The supported CPU features ( amd-sev-snp
	//   ).
	//
	//   - supported-boot-mode - The boot mode ( legacy-bios | uefi ).
	//
	//   - supported-root-device-type - The root device type ( ebs | instance-store ).
	//
	//   - supported-usage-class - The usage class ( on-demand | spot | capacity-block
	//   ).
	//
	//   - supported-virtualization-type - The virtualization type ( hvm | paravirtual
	//   ).
	//
	//   - vcpu-info.default-cores - The default number of cores for the instance type.
	//
	//   - vcpu-info.default-threads-per-core - The default number of threads per core
	//   for the instance type.
	//
	//   - vcpu-info.default-vcpus - The default number of vCPUs for the instance type.
	//
	//   - vcpu-info.valid-cores - The number of cores that can be configured for the
	//   instance type.
	//
	//   - vcpu-info.valid-threads-per-core - The number of threads per core that can
	//   be configured for the instance type. For example, "1" or "1,2".
	Filters []types.Filter

	// The instance types.
	InstanceTypes []types.InstanceType

	// The maximum number of items to return for this request. To get the next page of
	// items, make another request with the token returned in the output. For more
	// information, see [Pagination].
	//
	// [Pagination]: https://docs.aws.amazon.com/AWSEC2/latest/APIReference/Query-Requests.html#api-pagination
	MaxResults *int32

	// The token returned from a previous paginated request. Pagination continues from
	// the end of the items returned by the previous request.
	NextToken *string

	noSmithyDocumentSerde
}

type DescribeInstanceTypesOutput struct {

	// The instance type.
	InstanceTypes []types.InstanceTypeInfo

	// The token to include in another request to get the next page of items. This
	// value is null when there are no more items to return.
	NextToken *string

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

	noSmithyDocumentSerde
}

func (c *Client) addOperationDescribeInstanceTypesMiddlewares(stack *middleware.Stack, options Options) (err error) {
	if err := stack.Serialize.Add(&setOperationInputMiddleware{}, middleware.After); err != nil {
		return err
	}
	err = stack.Serialize.Add(&awsEc2query_serializeOpDescribeInstanceTypes{}, middleware.After)
	if err != nil {
		return err
	}
	err = stack.Deserialize.Add(&awsEc2query_deserializeOpDescribeInstanceTypes{}, middleware.After)
	if err != nil {
		return err
	}
	if err := addProtocolFinalizerMiddlewares(stack, options, "DescribeInstanceTypes"); 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 = stack.Initialize.Add(newServiceMetadataMiddleware_opDescribeInstanceTypes(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 = 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
}

// DescribeInstanceTypesPaginatorOptions is the paginator options for
// DescribeInstanceTypes
type DescribeInstanceTypesPaginatorOptions struct {
	// The maximum number of items to return for this request. To get the next page of
	// items, make another request with the token returned in the output. For more
	// information, see [Pagination].
	//
	// [Pagination]: https://docs.aws.amazon.com/AWSEC2/latest/APIReference/Query-Requests.html#api-pagination
	Limit int32

	// Set to true if pagination should stop if the service returns a pagination token
	// that matches the most recent token provided to the service.
	StopOnDuplicateToken bool
}

// DescribeInstanceTypesPaginator is a paginator for DescribeInstanceTypes
type DescribeInstanceTypesPaginator struct {
	options   DescribeInstanceTypesPaginatorOptions
	client    DescribeInstanceTypesAPIClient
	params    *DescribeInstanceTypesInput
	nextToken *string
	firstPage bool
}

// NewDescribeInstanceTypesPaginator returns a new DescribeInstanceTypesPaginator
func NewDescribeInstanceTypesPaginator(client DescribeInstanceTypesAPIClient, params *DescribeInstanceTypesInput, optFns ...func(*DescribeInstanceTypesPaginatorOptions)) *DescribeInstanceTypesPaginator {
	if params == nil {
		params = &DescribeInstanceTypesInput{}
	}

	options := DescribeInstanceTypesPaginatorOptions{}
	if params.MaxResults != nil {
		options.Limit = *params.MaxResults
	}

	for _, fn := range optFns {
		fn(&options)
	}

	return &DescribeInstanceTypesPaginator{
		options:   options,
		client:    client,
		params:    params,
		firstPage: true,
		nextToken: params.NextToken,
	}
}

// HasMorePages returns a boolean indicating whether more pages are available
func (p *DescribeInstanceTypesPaginator) HasMorePages() bool {
	return p.firstPage || (p.nextToken != nil && len(*p.nextToken) != 0)
}

// NextPage retrieves the next DescribeInstanceTypes page.
func (p *DescribeInstanceTypesPaginator) NextPage(ctx context.Context, optFns ...func(*Options)) (*DescribeInstanceTypesOutput, error) {
	if !p.HasMorePages() {
		return nil, fmt.Errorf("no more pages available")
	}

	params := *p.params
	params.NextToken = p.nextToken

	var limit *int32
	if p.options.Limit > 0 {
		limit = &p.options.Limit
	}
	params.MaxResults = limit

	optFns = append([]func(*Options){
		addIsPaginatorUserAgent,
	}, optFns...)
	result, err := p.client.DescribeInstanceTypes(ctx, &params, optFns...)
	if err != nil {
		return nil, err
	}
	p.firstPage = false

	prevToken := p.nextToken
	p.nextToken = result.NextToken

	if p.options.StopOnDuplicateToken &&
		prevToken != nil &&
		p.nextToken != nil &&
		*prevToken == *p.nextToken {
		p.nextToken = nil
	}

	return result, nil
}

// DescribeInstanceTypesAPIClient is a client that implements the
// DescribeInstanceTypes operation.
type DescribeInstanceTypesAPIClient interface {
	DescribeInstanceTypes(context.Context, *DescribeInstanceTypesInput, ...func(*Options)) (*DescribeInstanceTypesOutput, error)
}

var _ DescribeInstanceTypesAPIClient = (*Client)(nil)

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