<?php

namespace AsyncAws\S3\Input;

use AsyncAws\Core\Exception\InvalidArgument;
use AsyncAws\Core\Input;
use AsyncAws\Core\Request;
use AsyncAws\Core\Stream\StreamFactory;

final class HeadBucketRequest extends Input
{
    /**
     * The bucket name.
     *
     * When using this action with an access point, you must direct requests to the access point hostname. The access point
     * hostname takes the form *AccessPointName*-*AccountId*.s3-accesspoint.*Region*.amazonaws.com. When using this action
     * with an access point through the Amazon Web Services SDKs, you provide the access point ARN in place of the bucket
     * name. For more information about access point ARNs, see Using access points [^1] in the *Amazon S3 User Guide*.
     *
     * When you use this action 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 [^2].
     *
     * When you use this action with Amazon S3 on Outposts, you must direct requests to the S3 on Outposts hostname. The S3
     * on Outposts hostname takes the form `*AccessPointName*-*AccountId*.*outpostID*.s3-outposts.*Region*.amazonaws.com`.
     * When you use this action with S3 on Outposts through the Amazon Web Services SDKs, you provide the Outposts access
     * point ARN in place of the bucket name. For more information about S3 on Outposts ARNs, see What is S3 on Outposts
     * [^3] in the *Amazon S3 User Guide*.
     *
     * [^1]: https://docs.aws.amazon.com/AmazonS3/latest/userguide/using-access-points.html
     * [^2]: https://docs.aws.amazon.com/AmazonS3/latest/API/ErrorResponses.html#ErrorCodeList
     * [^3]: https://docs.aws.amazon.com/AmazonS3/latest/userguide/S3onOutposts.html
     *
     * @required
     *
     * @var string|null
     */
    private $bucket;

    /**
     * The account ID of the expected bucket owner. If the bucket is owned by a different account, the request fails with
     * the HTTP status code `403 Forbidden` (access denied).
     *
     * @var string|null
     */
    private $expectedBucketOwner;

    /**
     * @param array{
     *   Bucket?: string,
     *   ExpectedBucketOwner?: string,
     *
     *   @region?: string,
     * } $input
     */
    public function __construct(array $input = [])
    {
        $this->bucket = $input['Bucket'] ?? null;
        $this->expectedBucketOwner = $input['ExpectedBucketOwner'] ?? null;
        parent::__construct($input);
    }

    public static function create($input): self
    {
        return $input instanceof self ? $input : new self($input);
    }

    public function getBucket(): ?string
    {
        return $this->bucket;
    }

    public function getExpectedBucketOwner(): ?string
    {
        return $this->expectedBucketOwner;
    }

    /**
     * @internal
     */
    public function request(): Request
    {
        // Prepare headers
        $headers = ['content-type' => 'application/xml'];
        if (null !== $this->expectedBucketOwner) {
            $headers['x-amz-expected-bucket-owner'] = $this->expectedBucketOwner;
        }

        // Prepare query
        $query = [];

        // Prepare URI
        $uri = [];
        if (null === $v = $this->bucket) {
            throw new InvalidArgument(sprintf('Missing parameter "Bucket" for "%s". The value cannot be null.', __CLASS__));
        }
        $uri['Bucket'] = $v;
        $uriString = '/' . rawurlencode($uri['Bucket']);

        // Prepare Body
        $body = '';

        // Return the Request
        return new Request('HEAD', $uriString, $query, $headers, StreamFactory::create($body));
    }

    public function setBucket(?string $value): self
    {
        $this->bucket = $value;

        return $this;
    }

    public function setExpectedBucketOwner(?string $value): self
    {
        $this->expectedBucketOwner = $value;

        return $this;
    }
}
