import { S3ClientResolvedConfig, ServiceInputTypes, ServiceOutputTypes } from "../S3Client";
import { GetBucketNotificationConfigurationRequest, NotificationConfiguration } from "../models/models_0";
import {
  deserializeAws_restXmlGetBucketNotificationConfigurationCommand,
  serializeAws_restXmlGetBucketNotificationConfigurationCommand,
} from "../protocols/Aws_restXml";
import { getBucketEndpointPlugin } from "@aws-sdk/middleware-bucket-endpoint";
import { getSerdePlugin } from "@aws-sdk/middleware-serde";
import { HttpRequest as __HttpRequest, HttpResponse as __HttpResponse } from "@aws-sdk/protocol-http";
import { Command as $Command } from "@aws-sdk/smithy-client";
import {
  FinalizeHandlerArguments,
  Handler,
  HandlerExecutionContext,
  MiddlewareStack,
  HttpHandlerOptions as __HttpHandlerOptions,
  MetadataBearer as __MetadataBearer,
  SerdeContext as __SerdeContext,
} from "@aws-sdk/types";

export type GetBucketNotificationConfigurationCommandInput = GetBucketNotificationConfigurationRequest;
export type GetBucketNotificationConfigurationCommandOutput = NotificationConfiguration & __MetadataBearer;

/**
 * <p>Returns the notification configuration of a bucket.</p>
 *          <p>If notifications are not enabled on the bucket, the operation returns an empty
 *             <code>NotificationConfiguration</code> element.</p>
 *
 *          <p>By default, you must be the bucket owner to read the notification configuration of a
 *          bucket. However, the bucket owner can use a bucket policy to grant permission to other
 *          users to read this configuration with the <code>s3:GetBucketNotification</code>
 *          permission.</p>
 *
 *          <p>For more information about setting and reading the notification configuration on a
 *          bucket, see <a href="https://docs.aws.amazon.com/AmazonS3/latest/dev/NotificationHowTo.html">Setting Up Notification of
 *             Bucket Events</a>. For more information about bucket policies, see <a href="https://docs.aws.amazon.com/AmazonS3/latest/dev/using-iam-policies.html">Using Bucket Policies</a>.</p>
 *
 *          <p>The following operation is related to <code>GetBucketNotification</code>:</p>
 *          <ul>
 *             <li>
 *                <p>
 *                   <a href="https://docs.aws.amazon.com/AmazonS3/latest/API/API_PutBucketNotification.html">PutBucketNotification</a>
 *                </p>
 *             </li>
 *          </ul>
 */
export class GetBucketNotificationConfigurationCommand extends $Command<
  GetBucketNotificationConfigurationCommandInput,
  GetBucketNotificationConfigurationCommandOutput,
  S3ClientResolvedConfig
> {
  // Start section: command_properties
  // End section: command_properties

  constructor(readonly input: GetBucketNotificationConfigurationCommandInput) {
    // Start section: command_constructor
    super();
    // End section: command_constructor
  }

  /**
   * @internal
   */
  resolveMiddleware(
    clientStack: MiddlewareStack<ServiceInputTypes, ServiceOutputTypes>,
    configuration: S3ClientResolvedConfig,
    options?: __HttpHandlerOptions
  ): Handler<GetBucketNotificationConfigurationCommandInput, GetBucketNotificationConfigurationCommandOutput> {
    this.middlewareStack.use(getSerdePlugin(configuration, this.serialize, this.deserialize));
    this.middlewareStack.use(getBucketEndpointPlugin(configuration));

    const stack = clientStack.concat(this.middlewareStack);

    const { logger } = configuration;
    const clientName = "S3Client";
    const commandName = "GetBucketNotificationConfigurationCommand";
    const handlerExecutionContext: HandlerExecutionContext = {
      logger,
      clientName,
      commandName,
      inputFilterSensitiveLog: GetBucketNotificationConfigurationRequest.filterSensitiveLog,
      outputFilterSensitiveLog: NotificationConfiguration.filterSensitiveLog,
    };
    const { requestHandler } = configuration;
    return stack.resolve(
      (request: FinalizeHandlerArguments<any>) =>
        requestHandler.handle(request.request as __HttpRequest, options || {}),
      handlerExecutionContext
    );
  }

  private serialize(
    input: GetBucketNotificationConfigurationCommandInput,
    context: __SerdeContext
  ): Promise<__HttpRequest> {
    return serializeAws_restXmlGetBucketNotificationConfigurationCommand(input, context);
  }

  private deserialize(
    output: __HttpResponse,
    context: __SerdeContext
  ): Promise<GetBucketNotificationConfigurationCommandOutput> {
    return deserializeAws_restXmlGetBucketNotificationConfigurationCommand(output, context);
  }

  // Start section: command_body_extra
  // End section: command_body_extra
}