AWSTemplateFormatVersion: '2010-09-09'
Transform: 'AWS::Serverless-2016-10-31'
Description: Sends notifications from S3 to SQS when an object is created

Parameters:
  SourceBucketName:
    Type: String

Resources:
  ## S3 bucket
  SourceBucket:
    Type: 'AWS::S3::Bucket'
    DependsOn:
      - QueuePolicy
    Properties:
      BucketName: !Ref SourceBucketName
      NotificationConfiguration:
        QueueConfigurations:
          - Event: 's3:ObjectCreated:*'
            Queue: !GetAtt StandardQueue.Arn

  QueuePolicy:
    Type: 'AWS::SQS::QueuePolicy'
    Properties:
      PolicyDocument:
        Version: 2012-10-17
        Statement:
          - Effect: Allow
            Principal: 
              Service: "s3.amazonaws.com"
            Action:
              - 'SQS:SendMessage'
            Resource: !GetAtt StandardQueue.Arn
            Condition:
              ArnLike:
                aws:SourceArn: !Join ["",['arn:aws:s3:::',!Ref SourceBucketName]]
              StringEquals:
                aws:SourceAccount: !Ref AWS::AccountId
      Queues:
        - !Ref StandardQueue

  StandardQueue:
    Type: AWS::SQS::Queue