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

package dynamodb

import (
	"context"
	"errors"
	"fmt"
	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/dynamodb/types"
	internalEndpointDiscovery "github.com/aws/aws-sdk-go-v2/service/internal/endpoint-discovery"
	"github.com/aws/smithy-go/middleware"
	smithytime "github.com/aws/smithy-go/time"
	smithyhttp "github.com/aws/smithy-go/transport/http"
	smithywaiter "github.com/aws/smithy-go/waiter"
	"github.com/jmespath/go-jmespath"
	"time"
)

// Returns information about the table, including the current status of the table,
// when it was created, the primary key schema, and any indexes on the table. This
// operation only applies to Version 2019.11.21 (Current) (https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/globaltables.V2.html)
// of global tables. If you issue a DescribeTable request immediately after a
// CreateTable request, DynamoDB might return a ResourceNotFoundException . This is
// because DescribeTable uses an eventually consistent query, and the metadata for
// your table might not be available at that moment. Wait for a few seconds, and
// then try the DescribeTable request again.
func (c *Client) DescribeTable(ctx context.Context, params *DescribeTableInput, optFns ...func(*Options)) (*DescribeTableOutput, error) {
	if params == nil {
		params = &DescribeTableInput{}
	}

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

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

// Represents the input of a DescribeTable operation.
type DescribeTableInput struct {

	// The name of the table to describe.
	//
	// This member is required.
	TableName *string

	noSmithyDocumentSerde
}

// Represents the output of a DescribeTable operation.
type DescribeTableOutput struct {

	// The properties of the table.
	Table *types.TableDescription

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

	noSmithyDocumentSerde
}

func (c *Client) addOperationDescribeTableMiddlewares(stack *middleware.Stack, options Options) (err error) {
	err = stack.Serialize.Add(&awsAwsjson10_serializeOpDescribeTable{}, middleware.After)
	if err != nil {
		return err
	}
	err = stack.Deserialize.Add(&awsAwsjson10_deserializeOpDescribeTable{}, 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 = addOpDescribeTableDiscoverEndpointMiddleware(stack, options, c); err != nil {
		return err
	}
	if err = addOpDescribeTableValidationMiddleware(stack); err != nil {
		return err
	}
	if err = stack.Initialize.Add(newServiceMetadataMiddleware_opDescribeTable(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 = addValidateResponseChecksum(stack, options); err != nil {
		return err
	}
	if err = addAcceptEncodingGzip(stack, options); err != nil {
		return err
	}
	if err = addRequestResponseLogging(stack, options); err != nil {
		return err
	}
	return nil
}

func addOpDescribeTableDiscoverEndpointMiddleware(stack *middleware.Stack, o Options, c *Client) error {
	return stack.Serialize.Insert(&internalEndpointDiscovery.DiscoverEndpoint{
		Options: []func(*internalEndpointDiscovery.DiscoverEndpointOptions){
			func(opt *internalEndpointDiscovery.DiscoverEndpointOptions) {
				opt.DisableHTTPS = o.EndpointOptions.DisableHTTPS
				opt.Logger = o.Logger
			},
		},
		DiscoverOperation:            c.fetchOpDescribeTableDiscoverEndpoint,
		EndpointDiscoveryEnableState: o.EndpointDiscovery.EnableEndpointDiscovery,
		EndpointDiscoveryRequired:    false,
	}, "ResolveEndpoint", middleware.After)
}

func (c *Client) fetchOpDescribeTableDiscoverEndpoint(ctx context.Context, input interface{}, optFns ...func(*internalEndpointDiscovery.DiscoverEndpointOptions)) (internalEndpointDiscovery.WeightedAddress, error) {
	in, ok := input.(*DescribeTableInput)
	if !ok {
		return internalEndpointDiscovery.WeightedAddress{}, fmt.Errorf("unknown input type %T", input)
	}
	_ = in

	identifierMap := make(map[string]string, 0)

	key := fmt.Sprintf("DynamoDB.%v", identifierMap)

	if v, ok := c.endpointCache.Get(key); ok {
		return v, nil
	}

	discoveryOperationInput := &DescribeEndpointsInput{}

	opt := internalEndpointDiscovery.DiscoverEndpointOptions{}
	for _, fn := range optFns {
		fn(&opt)
	}

	go c.handleEndpointDiscoveryFromService(ctx, discoveryOperationInput, key, opt)
	return internalEndpointDiscovery.WeightedAddress{}, nil
}

// DescribeTableAPIClient is a client that implements the DescribeTable operation.
type DescribeTableAPIClient interface {
	DescribeTable(context.Context, *DescribeTableInput, ...func(*Options)) (*DescribeTableOutput, error)
}

var _ DescribeTableAPIClient = (*Client)(nil)

// TableExistsWaiterOptions are waiter options for TableExistsWaiter
type TableExistsWaiterOptions struct {

	// Set of options to modify how an operation is invoked. These apply to all
	// operations invoked for this client. Use functional options on operation call to
	// modify this list for per operation behavior.
	APIOptions []func(*middleware.Stack) error

	// MinDelay is the minimum amount of time to delay between retries. If unset,
	// TableExistsWaiter will use default minimum delay of 20 seconds. Note that
	// MinDelay must resolve to a value lesser than or equal to the MaxDelay.
	MinDelay time.Duration

	// MaxDelay is the maximum amount of time to delay between retries. If unset or
	// set to zero, TableExistsWaiter will use default max delay of 120 seconds. Note
	// that MaxDelay must resolve to value greater than or equal to the MinDelay.
	MaxDelay time.Duration

	// LogWaitAttempts is used to enable logging for waiter retry attempts
	LogWaitAttempts bool

	// Retryable is function that can be used to override the service defined
	// waiter-behavior based on operation output, or returned error. This function is
	// used by the waiter to decide if a state is retryable or a terminal state. By
	// default service-modeled logic will populate this option. This option can thus be
	// used to define a custom waiter state with fall-back to service-modeled waiter
	// state mutators.The function returns an error in case of a failure state. In case
	// of retry state, this function returns a bool value of true and nil error, while
	// in case of success it returns a bool value of false and nil error.
	Retryable func(context.Context, *DescribeTableInput, *DescribeTableOutput, error) (bool, error)
}

// TableExistsWaiter defines the waiters for TableExists
type TableExistsWaiter struct {
	client DescribeTableAPIClient

	options TableExistsWaiterOptions
}

// NewTableExistsWaiter constructs a TableExistsWaiter.
func NewTableExistsWaiter(client DescribeTableAPIClient, optFns ...func(*TableExistsWaiterOptions)) *TableExistsWaiter {
	options := TableExistsWaiterOptions{}
	options.MinDelay = 20 * time.Second
	options.MaxDelay = 120 * time.Second
	options.Retryable = tableExistsStateRetryable

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

// Wait calls the waiter function for TableExists waiter. The maxWaitDur is the
// maximum wait duration the waiter will wait. The maxWaitDur is required and must
// be greater than zero.
func (w *TableExistsWaiter) Wait(ctx context.Context, params *DescribeTableInput, maxWaitDur time.Duration, optFns ...func(*TableExistsWaiterOptions)) error {
	_, err := w.WaitForOutput(ctx, params, maxWaitDur, optFns...)
	return err
}

// WaitForOutput calls the waiter function for TableExists waiter and returns the
// output of the successful operation. The maxWaitDur is the maximum wait duration
// the waiter will wait. The maxWaitDur is required and must be greater than zero.
func (w *TableExistsWaiter) WaitForOutput(ctx context.Context, params *DescribeTableInput, maxWaitDur time.Duration, optFns ...func(*TableExistsWaiterOptions)) (*DescribeTableOutput, error) {
	if maxWaitDur <= 0 {
		return nil, fmt.Errorf("maximum wait time for waiter must be greater than zero")
	}

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

	if options.MaxDelay <= 0 {
		options.MaxDelay = 120 * time.Second
	}

	if options.MinDelay > options.MaxDelay {
		return nil, fmt.Errorf("minimum waiter delay %v must be lesser than or equal to maximum waiter delay of %v.", options.MinDelay, options.MaxDelay)
	}

	ctx, cancelFn := context.WithTimeout(ctx, maxWaitDur)
	defer cancelFn()

	logger := smithywaiter.Logger{}
	remainingTime := maxWaitDur

	var attempt int64
	for {

		attempt++
		apiOptions := options.APIOptions
		start := time.Now()

		if options.LogWaitAttempts {
			logger.Attempt = attempt
			apiOptions = append([]func(*middleware.Stack) error{}, options.APIOptions...)
			apiOptions = append(apiOptions, logger.AddLogger)
		}

		out, err := w.client.DescribeTable(ctx, params, func(o *Options) {
			o.APIOptions = append(o.APIOptions, apiOptions...)
		})

		retryable, err := options.Retryable(ctx, params, out, err)
		if err != nil {
			return nil, err
		}
		if !retryable {
			return out, nil
		}

		remainingTime -= time.Since(start)
		if remainingTime < options.MinDelay || remainingTime <= 0 {
			break
		}

		// compute exponential backoff between waiter retries
		delay, err := smithywaiter.ComputeDelay(
			attempt, options.MinDelay, options.MaxDelay, remainingTime,
		)
		if err != nil {
			return nil, fmt.Errorf("error computing waiter delay, %w", err)
		}

		remainingTime -= delay
		// sleep for the delay amount before invoking a request
		if err := smithytime.SleepWithContext(ctx, delay); err != nil {
			return nil, fmt.Errorf("request cancelled while waiting, %w", err)
		}
	}
	return nil, fmt.Errorf("exceeded max wait time for TableExists waiter")
}

func tableExistsStateRetryable(ctx context.Context, input *DescribeTableInput, output *DescribeTableOutput, err error) (bool, error) {

	if err == nil {
		pathValue, err := jmespath.Search("Table.TableStatus", output)
		if err != nil {
			return false, fmt.Errorf("error evaluating waiter state: %w", err)
		}

		expectedValue := "ACTIVE"
		value, ok := pathValue.(types.TableStatus)
		if !ok {
			return false, fmt.Errorf("waiter comparator expected types.TableStatus value, got %T", pathValue)
		}

		if string(value) == expectedValue {
			return false, nil
		}
	}

	if err != nil {
		var errorType *types.ResourceNotFoundException
		if errors.As(err, &errorType) {
			return true, nil
		}
	}

	return true, nil
}

// TableNotExistsWaiterOptions are waiter options for TableNotExistsWaiter
type TableNotExistsWaiterOptions struct {

	// Set of options to modify how an operation is invoked. These apply to all
	// operations invoked for this client. Use functional options on operation call to
	// modify this list for per operation behavior.
	APIOptions []func(*middleware.Stack) error

	// MinDelay is the minimum amount of time to delay between retries. If unset,
	// TableNotExistsWaiter will use default minimum delay of 20 seconds. Note that
	// MinDelay must resolve to a value lesser than or equal to the MaxDelay.
	MinDelay time.Duration

	// MaxDelay is the maximum amount of time to delay between retries. If unset or
	// set to zero, TableNotExistsWaiter will use default max delay of 120 seconds.
	// Note that MaxDelay must resolve to value greater than or equal to the MinDelay.
	MaxDelay time.Duration

	// LogWaitAttempts is used to enable logging for waiter retry attempts
	LogWaitAttempts bool

	// Retryable is function that can be used to override the service defined
	// waiter-behavior based on operation output, or returned error. This function is
	// used by the waiter to decide if a state is retryable or a terminal state. By
	// default service-modeled logic will populate this option. This option can thus be
	// used to define a custom waiter state with fall-back to service-modeled waiter
	// state mutators.The function returns an error in case of a failure state. In case
	// of retry state, this function returns a bool value of true and nil error, while
	// in case of success it returns a bool value of false and nil error.
	Retryable func(context.Context, *DescribeTableInput, *DescribeTableOutput, error) (bool, error)
}

// TableNotExistsWaiter defines the waiters for TableNotExists
type TableNotExistsWaiter struct {
	client DescribeTableAPIClient

	options TableNotExistsWaiterOptions
}

// NewTableNotExistsWaiter constructs a TableNotExistsWaiter.
func NewTableNotExistsWaiter(client DescribeTableAPIClient, optFns ...func(*TableNotExistsWaiterOptions)) *TableNotExistsWaiter {
	options := TableNotExistsWaiterOptions{}
	options.MinDelay = 20 * time.Second
	options.MaxDelay = 120 * time.Second
	options.Retryable = tableNotExistsStateRetryable

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

// Wait calls the waiter function for TableNotExists waiter. The maxWaitDur is the
// maximum wait duration the waiter will wait. The maxWaitDur is required and must
// be greater than zero.
func (w *TableNotExistsWaiter) Wait(ctx context.Context, params *DescribeTableInput, maxWaitDur time.Duration, optFns ...func(*TableNotExistsWaiterOptions)) error {
	_, err := w.WaitForOutput(ctx, params, maxWaitDur, optFns...)
	return err
}

// WaitForOutput calls the waiter function for TableNotExists waiter and returns
// the output of the successful operation. The maxWaitDur is the maximum wait
// duration the waiter will wait. The maxWaitDur is required and must be greater
// than zero.
func (w *TableNotExistsWaiter) WaitForOutput(ctx context.Context, params *DescribeTableInput, maxWaitDur time.Duration, optFns ...func(*TableNotExistsWaiterOptions)) (*DescribeTableOutput, error) {
	if maxWaitDur <= 0 {
		return nil, fmt.Errorf("maximum wait time for waiter must be greater than zero")
	}

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

	if options.MaxDelay <= 0 {
		options.MaxDelay = 120 * time.Second
	}

	if options.MinDelay > options.MaxDelay {
		return nil, fmt.Errorf("minimum waiter delay %v must be lesser than or equal to maximum waiter delay of %v.", options.MinDelay, options.MaxDelay)
	}

	ctx, cancelFn := context.WithTimeout(ctx, maxWaitDur)
	defer cancelFn()

	logger := smithywaiter.Logger{}
	remainingTime := maxWaitDur

	var attempt int64
	for {

		attempt++
		apiOptions := options.APIOptions
		start := time.Now()

		if options.LogWaitAttempts {
			logger.Attempt = attempt
			apiOptions = append([]func(*middleware.Stack) error{}, options.APIOptions...)
			apiOptions = append(apiOptions, logger.AddLogger)
		}

		out, err := w.client.DescribeTable(ctx, params, func(o *Options) {
			o.APIOptions = append(o.APIOptions, apiOptions...)
		})

		retryable, err := options.Retryable(ctx, params, out, err)
		if err != nil {
			return nil, err
		}
		if !retryable {
			return out, nil
		}

		remainingTime -= time.Since(start)
		if remainingTime < options.MinDelay || remainingTime <= 0 {
			break
		}

		// compute exponential backoff between waiter retries
		delay, err := smithywaiter.ComputeDelay(
			attempt, options.MinDelay, options.MaxDelay, remainingTime,
		)
		if err != nil {
			return nil, fmt.Errorf("error computing waiter delay, %w", err)
		}

		remainingTime -= delay
		// sleep for the delay amount before invoking a request
		if err := smithytime.SleepWithContext(ctx, delay); err != nil {
			return nil, fmt.Errorf("request cancelled while waiting, %w", err)
		}
	}
	return nil, fmt.Errorf("exceeded max wait time for TableNotExists waiter")
}

func tableNotExistsStateRetryable(ctx context.Context, input *DescribeTableInput, output *DescribeTableOutput, err error) (bool, error) {

	if err != nil {
		var errorType *types.ResourceNotFoundException
		if errors.As(err, &errorType) {
			return false, nil
		}
	}

	return true, nil
}

func newServiceMetadataMiddleware_opDescribeTable(region string) *awsmiddleware.RegisterServiceMetadata {
	return &awsmiddleware.RegisterServiceMetadata{
		Region:        region,
		ServiceID:     ServiceID,
		SigningName:   "dynamodb",
		OperationName: "DescribeTable",
	}
}