AWSTemplateFormatVersion: '2010-09-09'
Transform: 'AWS::Serverless-2016-10-31'
Description: An example application that translates text file contents.

Resources:
  TranslateFileFunction:
    Type: 'AWS::Serverless::Function'
    Properties:
      FunctionName: TranslateFile
      Handler: app.lambda_handler
      Runtime: python3.7
      CodeUri: src/translate_file
      Description: A Lambda function that translates text file contents.
      Timeout: 120
      Policies:
        - S3ReadPolicy:
            # Need to specify bucket name to avoid a circular dependency
            # More details: https://aws.amazon.com/blogs/infrastructure-and-automation/handling-circular-dependency-errors-in-aws-cloudformation/
            BucketName: !Sub "translate-file-bucket-${AWS::AccountId}"
        - Statement:
          - Sid: TranslateText
            Effect: Allow
            Action:
            - translate:TranslateText
            - comprehend:DetectDominantLanguage
            Resource: '*'
      Events:
        FileUploadedEvent:
          Type: S3
          Properties:
            Bucket: !Ref FileBucket
            Events: s3:ObjectCreated:*

  FileBucket:
    Type: AWS::S3::Bucket
    Properties:
      BucketName: !Sub "translate-file-bucket-${AWS::AccountId}"