AWSTemplateFormatVersion: '2010-09-09'
Transform: AWS::Serverless-2016-10-31
Description: >
  serverless-statemachine

  Sample Template for serverless-statemachine.
  
Globals:
  Function:
    Timeout: 900

Resources:
  ServerlessStatemachineTable:
    Type: AWS::DynamoDB::Table
    Properties: 
      AttributeDefinitions: 
        - AttributeName: id
          AttributeType: S
      KeySchema: 
        - AttributeName: id
          KeyType: HASH
      BillingMode:
        PAY_PER_REQUEST
      SSESpecification:
        SSEEnabled: true
      PointInTimeRecoverySpecification:
        PointInTimeRecoveryEnabled: true

  ServerlessStatemachineDeadLetterQueue:
    Type: AWS::SQS::Queue
    Properties:
      VisibilityTimeout: 900
      KmsMasterKeyId: alias/aws/sqs

  ServerlessStatemachineQueue:
    Type: AWS::SQS::Queue
    Properties:
      VisibilityTimeout: 900
      KmsMasterKeyId: alias/aws/sqs
      RedrivePolicy:
        deadLetterTargetArn: !GetAtt ServerlessStatemachineDeadLetterQueue.Arn
        maxReceiveCount: 1

  ApiAddFunction:
    Type: AWS::Serverless::Function
    Properties:
      CodeUri: api-add/
      Handler: index.handler
      Runtime: nodejs12.x
      Policies:
      - AmazonSQSFullAccess
      - AmazonDynamoDBFullAccess
      Environment:
        Variables:
          TABLE_NAME: !Ref ServerlessStatemachineTable
          QUEUE_URL: !Ref ServerlessStatemachineQueue

  ApiGetFunction:
    Type: AWS::Serverless::Function
    Properties:
      CodeUri: api-get/
      Handler: index.handler
      Runtime: nodejs12.x
      Policies:
      - AmazonDynamoDBReadOnlyAccess
      Environment:
        Variables:
          TABLE_NAME: !Ref ServerlessStatemachineTable
          QUEUE_URL: !Ref ServerlessStatemachineQueue

  ApiListFunction:
    Type: AWS::Serverless::Function
    Properties:
      CodeUri: api-list/
      Handler: index.handler
      Runtime: nodejs12.x
      Policies:
      - AmazonDynamoDBReadOnlyAccess
      Environment:
        Variables:
          TABLE_NAME: !Ref ServerlessStatemachineTable
          QUEUE_URL: !Ref ServerlessStatemachineQueue

  ApiDeleteFunction:
    Type: AWS::Serverless::Function
    Properties:
      CodeUri: api-remove/
      Handler: index.handler
      Runtime: nodejs12.x
      Policies:
      - AmazonDynamoDBFullAccess
      Environment:
        Variables:
          TABLE_NAME: !Ref ServerlessStatemachineTable
          QUEUE_URL: !Ref ServerlessStatemachineQueue

  WorkerFunction:
    Type: AWS::Serverless::Function
    Properties:
      CodeUri: worker/
      Handler: index.handler
      Runtime: nodejs12.x
      Policies:
      - AmazonSQSFullAccess
      - AWSLambdaFullAccess
      - AmazonDynamoDBFullAccess
      Environment:
        Variables:
          TABLE_NAME: !Ref ServerlessStatemachineTable
          QUEUE_URL: !Ref ServerlessStatemachineQueue
      Events:
        SQSTriggerEvent:
          Type: SQS
          Properties:
            Queue: !GetAtt ServerlessStatemachineQueue.Arn
            BatchSize: 1

Outputs:
  ApiAddFunction:
    Description: "ARN of the ApiAddFunction."
    Value: !GetAtt ApiAddFunction.Arn
  ApiGetFunction:
    Description: "ARN of the ApiGetFunction."
    Value: !GetAtt ApiGetFunction.Arn
  ApiListFunction:
    Description: "ARN of the ApiListFunction."
    Value: !GetAtt ApiListFunction.Arn
  ApiDeleteFunction:
    Description: "ARN of the ApiDeleteFunction."
    Value: !GetAtt ApiDeleteFunction.Arn