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

package rekognition

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

// Deletes the specified UserID within the collection. Faces that are associated
// with the UserID are disassociated from the UserID before deleting the specified
// UserID. If the specified Collection or UserID is already deleted or not found,
// a ResourceNotFoundException will be thrown. If the action is successful with a
// 200 response, an empty HTTP body is returned.
func (c *Client) DeleteUser(ctx context.Context, params *DeleteUserInput, optFns ...func(*Options)) (*DeleteUserOutput, error) {
	if params == nil {
		params = &DeleteUserInput{}
	}

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

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

type DeleteUserInput struct {

	// The ID of an existing collection from which the UserID needs to be deleted.
	//
	// This member is required.
	CollectionId *string

	// ID for the UserID to be deleted.
	//
	// This member is required.
	UserId *string

	// Idempotent token used to identify the request to DeleteUser . If you use the
	// same token with multiple DeleteUser requests, the same response is returned.
	// Use ClientRequestToken to prevent the same request from being processed more
	// than once.
	ClientRequestToken *string

	noSmithyDocumentSerde
}

type DeleteUserOutput struct {
	// Metadata pertaining to the operation's result.
	ResultMetadata middleware.Metadata

	noSmithyDocumentSerde
}

func (c *Client) addOperationDeleteUserMiddlewares(stack *middleware.Stack, options Options) (err error) {
	err = stack.Serialize.Add(&awsAwsjson11_serializeOpDeleteUser{}, middleware.After)
	if err != nil {
		return err
	}
	err = stack.Deserialize.Add(&awsAwsjson11_deserializeOpDeleteUser{}, 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 = addIdempotencyToken_opDeleteUserMiddleware(stack, options); err != nil {
		return err
	}
	if err = addOpDeleteUserValidationMiddleware(stack); err != nil {
		return err
	}
	if err = stack.Initialize.Add(newServiceMetadataMiddleware_opDeleteUser(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
}

type idempotencyToken_initializeOpDeleteUser struct {
	tokenProvider IdempotencyTokenProvider
}

func (*idempotencyToken_initializeOpDeleteUser) ID() string {
	return "OperationIdempotencyTokenAutoFill"
}

func (m *idempotencyToken_initializeOpDeleteUser) HandleInitialize(ctx context.Context, in middleware.InitializeInput, next middleware.InitializeHandler) (
	out middleware.InitializeOutput, metadata middleware.Metadata, err error,
) {
	if m.tokenProvider == nil {
		return next.HandleInitialize(ctx, in)
	}

	input, ok := in.Parameters.(*DeleteUserInput)
	if !ok {
		return out, metadata, fmt.Errorf("expected middleware input to be of type *DeleteUserInput ")
	}

	if input.ClientRequestToken == nil {
		t, err := m.tokenProvider.GetIdempotencyToken()
		if err != nil {
			return out, metadata, err
		}
		input.ClientRequestToken = &t
	}
	return next.HandleInitialize(ctx, in)
}
func addIdempotencyToken_opDeleteUserMiddleware(stack *middleware.Stack, cfg Options) error {
	return stack.Initialize.Add(&idempotencyToken_initializeOpDeleteUser{tokenProvider: cfg.IdempotencyTokenProvider}, middleware.Before)
}

func newServiceMetadataMiddleware_opDeleteUser(region string) *awsmiddleware.RegisterServiceMetadata {
	return &awsmiddleware.RegisterServiceMetadata{
		Region:        region,
		ServiceID:     ServiceID,
		SigningName:   "rekognition",
		OperationName: "DeleteUser",
	}
}