AWSTemplateFormatVersion: '2010-09-09'
Transform: AWS::Serverless-2016-10-31
Description: >
  step-function-dynamodb-integration-pattern

Resources:
###########################################
# S3 Bucket to store images              #
###########################################
  imagebucket:
    Type: 'AWS::S3::Bucket'
    Properties:
      BucketName: !Sub data-workflow-pattern-${AWS::AccountId}-${AWS::Region} # uses account number and region to ensure we provide a unique bucket name
##############################################
# DynamoDB table to store our image metadata #
##############################################
  ImageTable:
    Type: AWS::DynamoDB::Table
    Properties: 
      TableName: images-data-workflow-pattern-sl
      BillingMode: PAY_PER_REQUEST
      AttributeDefinitions: 
        - AttributeName: id
          AttributeType: S
      KeySchema: 
        - AttributeName: id
          KeyType: HASH

##########################################################################
#  Step function state machine                                           #
##########################################################################
  ProcessImageDataPatternStateMachine:
    Type: AWS::Serverless::StateMachine 
    Properties:
      Type: STANDARD
      DefinitionUri: statemachine/statemachine.asl.json
      Policies:
        - AmazonRekognitionReadOnlyAccess
        - AmazonS3ReadOnlyAccess
        - DynamoDBWritePolicy:
            TableName: !Ref ImageTable


Outputs:
  ActivityStateMachineArn:
    Description: "Activity State machine ARN"
    Value: !Ref ProcessImageDataPatternStateMachine
  DynamoDbTable:
    Description: "Name of DynamoDB Table"
    Value: !Ref ImageTable
  ImageS3Bucket: 
    Description: "S3 Bucket for Images"
    Value: !Ref imagebucket