import * as cdk from 'aws-cdk-lib';
import * as s3 from 'aws-cdk-lib/aws-s3';
import * as s3n from 'aws-cdk-lib/aws-s3-notifications';
import * as lambda from 'aws-cdk-lib/aws-lambda';
import {Bucket, EventType, IBucket} from 'aws-cdk-lib/aws-s3';




export class S3EventNotificationsStack extends cdk.Stack {
  constructor(scope: cdk.App, id: string, props?: cdk.StackProps) {
    super(scope, id, props);

  

    // Create an S3 bucket
    const bucketa = new s3.Bucket(this, 'MyBucket', {
      bucketName: 'test-event-notifications1',
      autoDeleteObjects: true, // This will automatically delete the objects when the bucket is deleted
      removalPolicy: cdk.RemovalPolicy.DESTROY, // This will delete the bucket when the stack is deleted
    });


    const bucket = Bucket.fromBucketName(
      this,
      'notifications-ravsaran',
      bucketa.bucketName,
    );

    console.log("print value : " + (bucket instanceof Bucket));
    // Create a Lambda function to handle the S3 event notifications
    const lambdaFunction = new lambda.Function(this, 'MyLambdaFunction', {
      runtime: lambda.Runtime.NODEJS_LATEST,
      handler: 'index.handler',
      code: lambda.Code.fromInline(`
        exports.handler = async (event) => {
          console.log('S3 event:', event);
          // Add your custom logic to handle the S3 event
          return { statusCode: 200 };
        };
      `),
      environment: {
        BUCKET_NAME: bucket.bucketName,
      },
    });

    // Grant the Lambda function permissions to access the S3 bucket
    bucket.grantReadWrite(lambdaFunction);



    /*
    *  Step 1: Deploy the stack by adding two event notifications.
    *  Step 2: Remove one of the event notifications, then redeploy the stack to reproduce the issue.
    */
    bucket.addEventNotification(s3.EventType.OBJECT_CREATED, new s3n.LambdaDestination(lambdaFunction), { prefix: 'TEST/' });
    bucket.addEventNotification(s3.EventType.OBJECT_CREATED, new s3n.LambdaDestination(lambdaFunction), { prefix: 'TEST_CDD/' });

  }
}

const app = new cdk.App();
new S3EventNotificationsStack(app, 'S3EventNotificationsStack');

app.synth();