AWSTemplateFormatVersion: 2010-09-09
Transform: AWS::Serverless-2016-10-31
Description: lambda-step-functions-sam

Globals:
  Function:
    Runtime: java11
    MemorySize: 512
    Timeout: 25

Resources:

  OrderEvent:
    Type: AWS::Serverless::Function
    Properties:
      FunctionName: OrderEvent
      Handler: com.example.event.OrderEvent::handleRequest
      CodeUri: target/sourceCode.zip
      Policies:
        - StepFunctionsExecutionPolicy:
            StateMachineName: !GetAtt StateMachine.Name
      Environment:
        Variables:
          StateMachineArn: !GetAtt StateMachine.Arn

  ProcessOrder:
    Type: AWS::Serverless::Function
    Properties:
      FunctionName: ProcessOrder
      Handler: com.example.order.ProcessOrder::handleRequest
      CodeUri: target/sourceCode.zip

  ProcessPayment:
    Type: AWS::Serverless::Function
    Properties:
      FunctionName: ProcessPayment
      Handler: com.example.payment.ProcessPayment::handleRequest
      CodeUri: target/sourceCode.zip

  ReserveInventory:
    Type: AWS::Serverless::Function
    Properties:
      FunctionName: ReserveInventory
      Handler: com.example.inventory.ReserveInventory::handleRequest
      CodeUri: target/sourceCode.zip

  CancelOrder:
    Type: AWS::Serverless::Function
    Properties:
      FunctionName: CancelOrder
      Handler: com.example.cancel.CancelOrder::handleRequest
      CodeUri: target/sourceCode.zip

  StateMachine:
    Type: AWS::Serverless::StateMachine
    Properties:
      DefinitionUri: sfn-definition.asl.json
      DefinitionSubstitutions:
        ProcessOrder: !GetAtt ProcessOrder.Arn
        ProcessPayment: !GetAtt ProcessPayment.Arn
        ReserveInventory: !GetAtt ReserveInventory.Arn
        CancelOrder: !GetAtt CancelOrder.Arn
      Name: ProcessOrder
      Policies:
        - Version: "2012-10-17"
          Statement:
            - Effect: Allow
              Action:
                - "cloudwatch:*"
                - "logs:*"
                - "lambda:InvokeFunction"
              Resource: "*"