AWSTemplateFormatVersion: '2010-09-09'
Outputs:
  S3Bucket:
    Description: The S3 Bucket where the files are stored
    Value:
      Ref: S3FileStorage
  SNSTopic:
    Description: The SNS topic your Lambda is publishing to
    Value:
      Ref: SNSTopic
Transform: AWS::Serverless-2016-10-31
Resources:
  LambdaPublisher:
    Type: AWS::Serverless::Function
    Properties:
      Environment:
        Variables:
          TOPIC_ARN:
            Ref: SNSTopic
      Handler: index.handler
      Policies:
      - Statement:
        - Action:
          - sns:ListSubscriptionsByTopic
          - sns:CreateTopic
          - sns:SetTopicAttributes
          - sns:Subscribe
          - sns:Publish
          Resource:
            Fn::Sub:
            - arn:${AWS::Partition}:sns:${AWS::Region}:${AWS::AccountId}:${topicName}*
            - topicName:
                Fn::GetAtt:
                - SNSTopic
                - TopicName
          Effect: Allow
      CodeUri:
        Bucket: <%REPO_BUCKET%>
        Key: 28da0e39-14e9-40e1-9c63-936d252ce64f
      Runtime: nodejs10.x
      Events:
        S3BucketEvent:
          Type: S3
          Properties:
            Bucket:
              Ref: S3FileStorage
            Events: s3:ObjectCreated:*
  S3FileStorage:
    Type: AWS::S3::Bucket
    Properties:
      NotificationConfiguration:
        LambdaConfigurations:
        - Function:
            Fn::GetAtt:
            - LambdaPublisher
            - Arn
          Event: s3:ObjectCreated:*
    DependsOn:
    - LambdaPublisherS3BucketEventPermission
  SNSTopic:
    Type: AWS::SNS::Topic