AWSTemplateFormatVersion: '2010-09-09'
Description: (AWS Heidi) Storage stack to create dynamodb table
Parameters:
  secondaryRegion:
    Type: String
    Description: Optional Enter name of secondary region, leave black if its single region deployment
  isPrimaryRegion:
    Type: String
    Description: Is this a primary region (Y/N)

Resources:
  EventHealthDDBTable:
    Condition: isPrimaryRegion
    Type: AWS::DynamoDB::GlobalTable
    Properties:
      TableName: !Sub "EventHealthDDBTable-${AWS::AccountId}"
      AttributeDefinitions:
        - AttributeName: eventArn
          AttributeType: S
      KeySchema:
        - AttributeName: eventArn
          KeyType: HASH
      BillingMode: PAY_PER_REQUEST
      StreamSpecification:
        StreamViewType: NEW_IMAGE
      Replicas: 
        - Region: !Sub "${AWS::Region}"
        - !If
          - secondaryRegion
          - Region: !Ref secondaryRegion
          - !Ref "AWS::NoValue"

Outputs:
  EventHealthDDBTable:
    Value: !Sub "EventHealthDDBTable-${AWS::AccountId}"
    Export:
      Name: EventHealthDDBTable
  EventHealthDDBTableArn:
    Value: !Sub arn:aws:dynamodb:${AWS::Region}:${AWS::AccountId}:table/EventHealthDDBTable-${AWS::AccountId}
    Export:
      Name:  EventHealthDDBTableArn

Conditions:
  isPrimaryRegion: !Equals [!Ref isPrimaryRegion, "Y"]
  secondaryRegion: !Not [!Equals [!Ref secondaryRegion, ""]]