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

package appstream

import (
	"context"
	awsmiddleware "github.com/aws/aws-sdk-go-v2/aws/middleware"
	"github.com/aws/aws-sdk-go-v2/aws/signer/v4"
	"github.com/aws/aws-sdk-go-v2/service/appstream/types"
	"github.com/aws/smithy-go/middleware"
	smithyhttp "github.com/aws/smithy-go/transport/http"
)

// Retrieves a list that describes one or more specified users in the user pool.
func (c *Client) DescribeUsers(ctx context.Context, params *DescribeUsersInput, optFns ...func(*Options)) (*DescribeUsersOutput, error) {
	if params == nil {
		params = &DescribeUsersInput{}
	}

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

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

type DescribeUsersInput struct {

	// The authentication type for the users in the user pool to describe. You must
	// specify USERPOOL.
	//
	// This member is required.
	AuthenticationType types.AuthenticationType

	// The maximum size of each page of results.
	MaxResults *int32

	// The pagination token to use to retrieve the next page of results for this
	// operation. If this value is null, it retrieves the first page.
	NextToken *string

	noSmithyDocumentSerde
}

type DescribeUsersOutput struct {

	// The pagination token to use to retrieve the next page of results for this
	// operation. If there are no more pages, this value is null.
	NextToken *string

	// Information about users in the user pool.
	Users []types.User

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

	noSmithyDocumentSerde
}

func (c *Client) addOperationDescribeUsersMiddlewares(stack *middleware.Stack, options Options) (err error) {
	err = stack.Serialize.Add(&awsAwsjson11_serializeOpDescribeUsers{}, middleware.After)
	if err != nil {
		return err
	}
	err = stack.Deserialize.Add(&awsAwsjson11_deserializeOpDescribeUsers{}, middleware.After)
	if err != nil {
		return err
	}
	if err = addSetLoggerMiddleware(stack, options); err != nil {
		return err
	}
	if err = awsmiddleware.AddClientRequestIDMiddleware(stack); err != nil {
		return err
	}
	if err = smithyhttp.AddComputeContentLengthMiddleware(stack); err != nil {
		return err
	}
	if err = addResolveEndpointMiddleware(stack, options); err != nil {
		return err
	}
	if err = v4.AddComputePayloadSHA256Middleware(stack); err != nil {
		return err
	}
	if err = addRetryMiddlewares(stack, options); err != nil {
		return err
	}
	if err = addHTTPSignerV4Middleware(stack, options); err != nil {
		return err
	}
	if err = awsmiddleware.AddRawResponseToMetadata(stack); err != nil {
		return err
	}
	if err = awsmiddleware.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 = addOpDescribeUsersValidationMiddleware(stack); err != nil {
		return err
	}
	if err = stack.Initialize.Add(newServiceMetadataMiddleware_opDescribeUsers(options.Region), middleware.Before); err != nil {
		return err
	}
	if err = awsmiddleware.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
	}
	return nil
}

func newServiceMetadataMiddleware_opDescribeUsers(region string) *awsmiddleware.RegisterServiceMetadata {
	return &awsmiddleware.RegisterServiceMetadata{
		Region:        region,
		ServiceID:     ServiceID,
		SigningName:   "appstream",
		OperationName: "DescribeUsers",
	}
}