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

package applicationdiscoveryservice

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

// Retrieve status of one or more export tasks. You can retrieve the status of up
// to 100 export tasks.
func (c *Client) DescribeExportTasks(ctx context.Context, params *DescribeExportTasksInput, optFns ...func(*Options)) (*DescribeExportTasksOutput, error) {
	if params == nil {
		params = &DescribeExportTasksInput{}
	}

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

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

type DescribeExportTasksInput struct {

	// One or more unique identifiers used to query the status of an export request.
	ExportIds []string

	// One or more filters.
	//
	//   - AgentId - ID of the agent whose collected data will be exported
	Filters []types.ExportFilter

	// The maximum number of volume results returned by DescribeExportTasks in
	// paginated output. When this parameter is used, DescribeExportTasks only returns
	// maxResults results in a single page along with a nextToken response element.
	MaxResults int32

	// The nextToken value returned from a previous paginated DescribeExportTasks
	// request where maxResults was used and the results exceeded the value of that
	// parameter. Pagination continues from the end of the previous results that
	// returned the nextToken value. This value is null when there are no more results
	// to return.
	NextToken *string

	noSmithyDocumentSerde
}

type DescribeExportTasksOutput struct {

	// Contains one or more sets of export request details. When the status of a
	// request is SUCCEEDED , the response includes a URL for an Amazon S3 bucket where
	// you can view the data in a CSV file.
	ExportsInfo []types.ExportInfo

	// The nextToken value to include in a future DescribeExportTasks request. When
	// the results of a DescribeExportTasks request exceed maxResults , this value can
	// be used to retrieve the next page of results. This value is null when there are
	// no more results to return.
	NextToken *string

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

	noSmithyDocumentSerde
}

func (c *Client) addOperationDescribeExportTasksMiddlewares(stack *middleware.Stack, options Options) (err error) {
	if err := stack.Serialize.Add(&setOperationInputMiddleware{}, middleware.After); err != nil {
		return err
	}
	err = stack.Serialize.Add(&awsAwsjson11_serializeOpDescribeExportTasks{}, middleware.After)
	if err != nil {
		return err
	}
	err = stack.Deserialize.Add(&awsAwsjson11_deserializeOpDescribeExportTasks{}, middleware.After)
	if err != nil {
		return err
	}
	if err := addProtocolFinalizerMiddlewares(stack, options, "DescribeExportTasks"); 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 = addOpDescribeExportTasksValidationMiddleware(stack); err != nil {
		return err
	}
	if err = stack.Initialize.Add(newServiceMetadataMiddleware_opDescribeExportTasks(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
}

// DescribeExportTasksPaginatorOptions is the paginator options for
// DescribeExportTasks
type DescribeExportTasksPaginatorOptions struct {
	// The maximum number of volume results returned by DescribeExportTasks in
	// paginated output. When this parameter is used, DescribeExportTasks only returns
	// maxResults results in a single page along with a nextToken response element.
	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
}

// DescribeExportTasksPaginator is a paginator for DescribeExportTasks
type DescribeExportTasksPaginator struct {
	options   DescribeExportTasksPaginatorOptions
	client    DescribeExportTasksAPIClient
	params    *DescribeExportTasksInput
	nextToken *string
	firstPage bool
}

// NewDescribeExportTasksPaginator returns a new DescribeExportTasksPaginator
func NewDescribeExportTasksPaginator(client DescribeExportTasksAPIClient, params *DescribeExportTasksInput, optFns ...func(*DescribeExportTasksPaginatorOptions)) *DescribeExportTasksPaginator {
	if params == nil {
		params = &DescribeExportTasksInput{}
	}

	options := DescribeExportTasksPaginatorOptions{}
	if params.MaxResults != 0 {
		options.Limit = params.MaxResults
	}

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

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

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

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

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

	params.MaxResults = p.options.Limit

	optFns = append([]func(*Options){
		addIsPaginatorUserAgent,
	}, optFns...)
	result, err := p.client.DescribeExportTasks(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
}

// DescribeExportTasksAPIClient is a client that implements the
// DescribeExportTasks operation.
type DescribeExportTasksAPIClient interface {
	DescribeExportTasks(context.Context, *DescribeExportTasksInput, ...func(*Options)) (*DescribeExportTasksOutput, error)
}

var _ DescribeExportTasksAPIClient = (*Client)(nil)

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