AWSTemplateFormatVersion: '2010-09-09'
Transform: 'AWS::Serverless-2016-10-31'

Description: SAM app that uses Rekognition APIs to detect text in S3 Objects and stores labels in DynamoDB.

Resources:
  DetectTextInImage:
    Type: 'AWS::Serverless::Function'
    Properties:
      Handler: src/app.lambda_handler
      Runtime: python3.6
      CodeUri: .
      Description: Uses Rekognition APIs to detect text in S3 Objects and stores the text and labels in DynamoDB.
      MemorySize: 512
      Timeout: 30
      Environment:
        Variables:
          TABLE_NAME:
            Ref: ResultsTable
      Policies:
        - Version: '2012-10-17'
          Statement:
            - Effect: Allow
              Action:
                - 's3:GetObject'
              Resource: 'arn:aws:s3:::*'
            - Effect: Allow
              Action:
                - 'rekognition:DetectText'
                - 'rekognition:DetectLabels'
              Resource: '*'
            - Effect: Allow
              Action:
                - 'dynamodb:GetItem'
                - 'dynamodb:PutItem'
                - 'dynamodb:Scan'
                - 'dynamodb:UpdateItem'
              Resource:
                'Fn::Join':
                  - ''
                  - - 'arn:aws:dynamodb:'
                    - Ref: 'AWS::Region'
                    - ':'
                    - Ref: 'AWS::AccountId'
                    - ':table/'
                    - Ref: ResultsTable
      Events:
        BucketEvent1:
          Type: S3
          Properties:
            Bucket:
              Ref: SourceImageBucket
            Events:
              - 's3:ObjectCreated:*'
  
  SourceImageBucket:
    Type: 'AWS::S3::Bucket'

  ResultsTable:
    Type: AWS::Serverless::SimpleTable