// 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"
)

// Gets usage information about a Capacity Reservation. If the Capacity
// Reservation is shared, it shows usage information for the Capacity Reservation
// owner and each Amazon Web Services account that is currently using the shared
// capacity. If the Capacity Reservation is not shared, it shows only the Capacity
// Reservation owner's usage.
func (c *Client) GetCapacityReservationUsage(ctx context.Context, params *GetCapacityReservationUsageInput, optFns ...func(*Options)) (*GetCapacityReservationUsageOutput, error) {
	if params == nil {
		params = &GetCapacityReservationUsageInput{}
	}

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

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

type GetCapacityReservationUsageInput struct {

	// The ID of the Capacity Reservation.
	//
	// This member is required.
	CapacityReservationId *string

	// 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

	// 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 to use to retrieve the next page of results.
	NextToken *string

	noSmithyDocumentSerde
}

type GetCapacityReservationUsageOutput struct {

	// The remaining capacity. Indicates the number of instances that can be launched
	// in the Capacity Reservation.
	AvailableInstanceCount *int32

	// The ID of the Capacity Reservation.
	CapacityReservationId *string

	// The type of instance for which the Capacity Reservation reserves capacity.
	InstanceType *string

	// Information about the Capacity Reservation usage.
	InstanceUsages []types.InstanceUsage

	// The token to use to retrieve the next page of results. This value is null when
	// there are no more results to return.
	NextToken *string

	// The current state of the Capacity Reservation. A Capacity Reservation can be in
	// one of the following states:
	//
	//   - active - The capacity is available for use.
	//
	//   - expired - The Capacity Reservation expired automatically at the date and
	//   time specified in your reservation request. The reserved capacity is no longer
	//   available for your use.
	//
	//   - cancelled - The Capacity Reservation was canceled. The reserved capacity is
	//   no longer available for your use.
	//
	//   - pending - The Capacity Reservation request was successful but the capacity
	//   provisioning is still pending.
	//
	//   - failed - The Capacity Reservation request has failed. A request can fail due
	//   to request parameters that are not valid, capacity constraints, or instance
	//   limit constraints. You can view a failed request for 60 minutes.
	//
	//   - scheduled - (Future-dated Capacity Reservations only) The future-dated
	//   Capacity Reservation request was approved and the Capacity Reservation is
	//   scheduled for delivery on the requested start date.
	//
	//   - assessing - (Future-dated Capacity Reservations only) Amazon EC2 is
	//   assessing your request for a future-dated Capacity Reservation.
	//
	//   - delayed - (Future-dated Capacity Reservations only) Amazon EC2 encountered a
	//   delay in provisioning the requested future-dated Capacity Reservation. Amazon
	//   EC2 is unable to deliver the requested capacity by the requested start date and
	//   time.
	//
	//   - unsupported - (Future-dated Capacity Reservations only) Amazon EC2 can't
	//   support the future-dated Capacity Reservation request due to capacity
	//   constraints. You can view unsupported requests for 30 days. The Capacity
	//   Reservation will not be delivered.
	State types.CapacityReservationState

	// The number of instances for which the Capacity Reservation reserves capacity.
	TotalInstanceCount *int32

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

	noSmithyDocumentSerde
}

func (c *Client) addOperationGetCapacityReservationUsageMiddlewares(stack *middleware.Stack, options Options) (err error) {
	if err := stack.Serialize.Add(&setOperationInputMiddleware{}, middleware.After); err != nil {
		return err
	}
	err = stack.Serialize.Add(&awsEc2query_serializeOpGetCapacityReservationUsage{}, middleware.After)
	if err != nil {
		return err
	}
	err = stack.Deserialize.Add(&awsEc2query_deserializeOpGetCapacityReservationUsage{}, middleware.After)
	if err != nil {
		return err
	}
	if err := addProtocolFinalizerMiddlewares(stack, options, "GetCapacityReservationUsage"); 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 = addOpGetCapacityReservationUsageValidationMiddleware(stack); err != nil {
		return err
	}
	if err = stack.Initialize.Add(newServiceMetadataMiddleware_opGetCapacityReservationUsage(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
}

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