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

package s3

import (
	"bytes"
	"context"
	"encoding/xml"
	"fmt"
	"github.com/aws/aws-sdk-go-v2/aws/signer/v4"
	s3cust "github.com/aws/aws-sdk-go-v2/service/s3/internal/customizations"
	"github.com/aws/aws-sdk-go-v2/service/s3/types"
	smithy "github.com/aws/smithy-go"
	smithyxml "github.com/aws/smithy-go/encoding/xml"
	smithyio "github.com/aws/smithy-go/io"
	"github.com/aws/smithy-go/middleware"
	"github.com/aws/smithy-go/ptr"
	smithyhttp "github.com/aws/smithy-go/transport/http"
	"io"
)

// Using the GetBucketLocation operation is no longer a best practice. To return
// the Region that a bucket resides in, we recommend that you use the [HeadBucket]operation
// instead. For backward compatibility, Amazon S3 continues to support the
// GetBucketLocation operation.
//
// Returns the Region the bucket resides in. You set the bucket's Region using the
// LocationConstraint request parameter in a CreateBucket request. For more
// information, see [CreateBucket].
//
// In a bucket's home Region, calls to the GetBucketLocation operation are
// governed by the bucket's policy. In other Regions, the bucket policy doesn't
// apply, which means that cross-account access won't be authorized. However, calls
// to the HeadBucket operation always return the bucket’s location through an HTTP
// response header, whether access to the bucket is authorized or not. Therefore,
// we recommend using the HeadBucket operation for bucket Region discovery and to
// avoid using the GetBucketLocation operation.
//
// When you use this API operation with an access point, provide the alias of the
// access point in place of the bucket name.
//
// When you use this API operation with an Object Lambda access point, provide the
// alias of the Object Lambda access point in place of the bucket name. If the
// Object Lambda access point alias in a request is not valid, the error code
// InvalidAccessPointAliasError is returned. For more information about
// InvalidAccessPointAliasError , see [List of Error Codes].
//
// This operation is not supported for directory buckets.
//
// The following operations are related to GetBucketLocation :
//
// [GetObject]
//
// [CreateBucket]
//
// You must URL encode any signed header values that contain spaces. For example,
// if your header value is my file.txt , containing two spaces after my , you must
// URL encode this value to my%20%20file.txt .
//
// [List of Error Codes]: https://docs.aws.amazon.com/AmazonS3/latest/API/ErrorResponses.html#ErrorCodeList
// [CreateBucket]: https://docs.aws.amazon.com/AmazonS3/latest/API/API_CreateBucket.html
// [GetObject]: https://docs.aws.amazon.com/AmazonS3/latest/API/API_GetObject.html
// [HeadBucket]: https://docs.aws.amazon.com/AmazonS3/latest/API/API_HeadBucket.html
func (c *Client) GetBucketLocation(ctx context.Context, params *GetBucketLocationInput, optFns ...func(*Options)) (*GetBucketLocationOutput, error) {
	if params == nil {
		params = &GetBucketLocationInput{}
	}

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

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

type GetBucketLocationInput struct {

	// The name of the bucket for which to get the location.
	//
	// When you use this API operation with an access point, provide the alias of the
	// access point in place of the bucket name.
	//
	// When you use this API operation with an Object Lambda access point, provide the
	// alias of the Object Lambda access point in place of the bucket name. If the
	// Object Lambda access point alias in a request is not valid, the error code
	// InvalidAccessPointAliasError is returned. For more information about
	// InvalidAccessPointAliasError , see [List of Error Codes].
	//
	// [List of Error Codes]: https://docs.aws.amazon.com/AmazonS3/latest/API/ErrorResponses.html#ErrorCodeList
	//
	// This member is required.
	Bucket *string

	// The account ID of the expected bucket owner. If the account ID that you provide
	// does not match the actual owner of the bucket, the request fails with the HTTP
	// status code 403 Forbidden (access denied).
	ExpectedBucketOwner *string

	noSmithyDocumentSerde
}

func (in *GetBucketLocationInput) bindEndpointParams(p *EndpointParameters) {

	p.Bucket = in.Bucket
	p.UseS3ExpressControlEndpoint = ptr.Bool(true)
}

type GetBucketLocationOutput struct {

	// Specifies the Region where the bucket resides. For a list of all the Amazon S3
	// supported location constraints by Region, see [Regions and Endpoints].
	//
	// Buckets in Region us-east-1 have a LocationConstraint of null . Buckets with a
	// LocationConstraint of EU reside in eu-west-1 .
	//
	// [Regions and Endpoints]: https://docs.aws.amazon.com/general/latest/gr/rande.html#s3_region
	LocationConstraint types.BucketLocationConstraint

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

	noSmithyDocumentSerde
}

func (c *Client) addOperationGetBucketLocationMiddlewares(stack *middleware.Stack, options Options) (err error) {
	err = stack.Serialize.Add(&awsRestxml_serializeOpGetBucketLocation{}, middleware.After)
	if err != nil {
		return err
	}
	err = stack.Deserialize.Add(&awsRestxml_deserializeOpGetBucketLocation{}, middleware.After)
	if err != nil {
		return err
	}

	if err = addResolveEndpointMiddleware(stack, options); err != nil {
		return err
	}
	if err = addComputePayloadSHA256(stack); err != nil {
		return err
	}
	if err = addRecordResponseTiming(stack, options); err != nil {
		return err
	}
	if err = swapDeserializerHelper(stack); err != nil {
		return err
	}
	if err = addPutBucketContextMiddleware(stack); err != nil {
		return err
	}
	if err = addIsExpressUserAgent(stack); err != nil {
		return err
	}
	if err = addCredentialSource(stack, options); err != nil {
		return err
	}
	if err = addOpGetBucketLocationValidationMiddleware(stack); err != nil {
		return err
	}
	if err = addMetadataRetrieverMiddleware(stack); err != nil {
		return err
	}
	if err = addGetBucketLocationUpdateEndpoint(stack, options); err != nil {
		return err
	}
	if err = addResponseErrorMiddleware(stack); err != nil {
		return err
	}
	if err = v4.AddContentSHA256HeaderMiddleware(stack); err != nil {
		return err
	}
	if err = disableAcceptEncodingGzip(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 = addSerializeImmutableHostnameBucketMiddleware(stack, options); err != nil {
		return err
	}
	if err = addInterceptors(stack, options); err != nil {
		return err
	}
	return nil
}

type awsRestxml_deserializeOpGetBucketLocation_custom struct {
}

func (*awsRestxml_deserializeOpGetBucketLocation_custom) ID() string {
	return "OperationDeserializer"
}

func (m *awsRestxml_deserializeOpGetBucketLocation_custom) HandleDeserialize(ctx context.Context, in middleware.DeserializeInput, next middleware.DeserializeHandler) (
	out middleware.DeserializeOutput, metadata middleware.Metadata, err error,
) {
	out, metadata, err = next.HandleDeserialize(ctx, in)
	if err != nil {
		return out, metadata, err
	}

	response, ok := out.RawResponse.(*smithyhttp.Response)
	if !ok {
		return out, metadata, &smithy.DeserializationError{Err: fmt.Errorf("unknown transport type %T", out.RawResponse)}
	}

	if response.StatusCode < 200 || response.StatusCode >= 300 {
		return out, metadata, awsRestxml_deserializeOpErrorGetBucketLocation(response, &metadata)
	}
	output := &GetBucketLocationOutput{}
	out.Result = output

	var buff [1024]byte
	ringBuffer := smithyio.NewRingBuffer(buff[:])
	body := io.TeeReader(response.Body, ringBuffer)
	rootDecoder := xml.NewDecoder(body)
	decoder := smithyxml.WrapNodeDecoder(rootDecoder, xml.StartElement{})
	err = awsRestxml_deserializeOpDocumentGetBucketLocationOutput(&output, decoder)
	if err == io.EOF {
		err = nil
	}
	if err != nil {
		var snapshot bytes.Buffer
		io.Copy(&snapshot, ringBuffer)
		return out, metadata, &smithy.DeserializationError{
			Err:      fmt.Errorf("failed to decode response body, %w", err),
			Snapshot: snapshot.Bytes(),
		}
	}

	return out, metadata, err
}

// Helper to swap in a custom deserializer
func swapDeserializerHelper(stack *middleware.Stack) error {
	_, err := stack.Deserialize.Swap("OperationDeserializer", &awsRestxml_deserializeOpGetBucketLocation_custom{})
	if err != nil {
		return err
	}
	return nil
}

func (v *GetBucketLocationInput) bucket() (string, bool) {
	if v.Bucket == nil {
		return "", false
	}
	return *v.Bucket, true
}

// getGetBucketLocationBucketMember returns a pointer to string denoting a
// provided bucket member valueand a boolean indicating if the input has a modeled
// bucket name,
func getGetBucketLocationBucketMember(input interface{}) (*string, bool) {
	in := input.(*GetBucketLocationInput)
	if in.Bucket == nil {
		return nil, false
	}
	return in.Bucket, true
}
func addGetBucketLocationUpdateEndpoint(stack *middleware.Stack, options Options) error {
	return s3cust.UpdateEndpoint(stack, s3cust.UpdateEndpointOptions{
		Accessor: s3cust.UpdateEndpointParameterAccessor{
			GetBucketFromInput: getGetBucketLocationBucketMember,
		},
		UsePathStyle:                   options.UsePathStyle,
		UseAccelerate:                  options.UseAccelerate,
		SupportsAccelerate:             true,
		TargetS3ObjectLambda:           false,
		EndpointResolver:               options.EndpointResolver,
		EndpointResolverOptions:        options.EndpointOptions,
		UseARNRegion:                   options.UseARNRegion,
		DisableMultiRegionAccessPoints: options.DisableMultiRegionAccessPoints,
	})
}
