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

package storagegateway

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

// Returns information about the upload buffer of a gateway. This operation is
// supported for the stored volume, cached volume, and tape gateway types.
//
// The response includes disk IDs that are configured as upload buffer space, and
// it includes the amount of upload buffer space allocated and used.
func (c *Client) DescribeUploadBuffer(ctx context.Context, params *DescribeUploadBufferInput, optFns ...func(*Options)) (*DescribeUploadBufferOutput, error) {
	if params == nil {
		params = &DescribeUploadBufferInput{}
	}

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

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

type DescribeUploadBufferInput struct {

	// The Amazon Resource Name (ARN) of the gateway. Use the ListGateways operation to return a
	// list of gateways for your account and Amazon Web Services Region.
	//
	// This member is required.
	GatewayARN *string

	noSmithyDocumentSerde
}

type DescribeUploadBufferOutput struct {

	// An array of the gateway's local disk IDs that are configured as working
	// storage. Each local disk ID is specified as a string (minimum length of 1 and
	// maximum length of 300). If no local disks are configured as working storage,
	// then the DiskIds array is empty.
	DiskIds []string

	// The Amazon Resource Name (ARN) of the gateway. Use the ListGateways operation to return a
	// list of gateways for your account and Amazon Web Services Region.
	GatewayARN *string

	// The total number of bytes allocated in the gateway's as upload buffer.
	UploadBufferAllocatedInBytes int64

	// The total number of bytes being used in the gateway's upload buffer.
	UploadBufferUsedInBytes int64

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

	noSmithyDocumentSerde
}

func (c *Client) addOperationDescribeUploadBufferMiddlewares(stack *middleware.Stack, options Options) (err error) {
	if err := stack.Serialize.Add(&setOperationInputMiddleware{}, middleware.After); err != nil {
		return err
	}
	err = stack.Serialize.Add(&awsAwsjson11_serializeOpDescribeUploadBuffer{}, middleware.After)
	if err != nil {
		return err
	}
	err = stack.Deserialize.Add(&awsAwsjson11_deserializeOpDescribeUploadBuffer{}, middleware.After)
	if err != nil {
		return err
	}
	if err := addProtocolFinalizerMiddlewares(stack, options, "DescribeUploadBuffer"); 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 = addOpDescribeUploadBufferValidationMiddleware(stack); err != nil {
		return err
	}
	if err = stack.Initialize.Add(newServiceMetadataMiddleware_opDescribeUploadBuffer(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_opDescribeUploadBuffer(region string) *awsmiddleware.RegisterServiceMetadata {
	return &awsmiddleware.RegisterServiceMetadata{
		Region:        region,
		ServiceID:     ServiceID,
		OperationName: "DescribeUploadBuffer",
	}
}
