AWSTemplateFormatVersion : '2010-09-09'
Transform: AWS::Serverless-2016-10-31
Description: A hello world application that creates multiple resources used for inteting remote invoke command.

Resources:
  HelloWorldServerlessFunction:
    Type: AWS::Serverless::Function
    Properties:
      Handler: main.default_handler
      Runtime: python3.9
      CodeUri: ./lambda-fns
      Timeout: 5

  EchoEventFunction:
    Type: AWS::Serverless::Function
    Properties:
      Handler: main.echo_event
      Runtime: python3.9
      CodeUri: ./lambda-fns
      Timeout: 5

  EchoClientContextData:
    Type: AWS::Serverless::Function
    Properties:
      Handler: main.echo_client_context_data
      Runtime: python3.9
      CodeUri: ./lambda-fns
      Timeout: 5

  EchoCustomEnvVarFunction:
    Type: AWS::Serverless::Function
    Properties:
      Handler: main.custom_env_var_echo_handler
      Runtime: python3.9
      CodeUri: ./lambda-fns
      Environment:
        Variables:
          CustomEnvVar: "MyOtherVar"
      Timeout: 5

  WriteToStderrFunction:
    Type: AWS::Serverless::Function
    Properties:
      Handler: main.write_to_stderr
      Runtime: python3.9
      CodeUri: ./lambda-fns
      Timeout: 5

  RaiseExceptionFunction:
    Type: AWS::Serverless::Function
    Properties:
      Handler: main.raise_exception
      Runtime: python3.9
      CodeUri: ./lambda-fns
      Timeout: 5
  
  StateMachineExecutionFails:
    Type: AWS::Serverless::StateMachine
    Properties:
      DefinitionUri: ./state-machines/execution-fails-state-machine-definition.asl.json

  StockPriceGuideStateMachine:
    Type: AWS::Serverless::StateMachine
    Properties:
      DefinitionUri: ./state-machines/stock-trader-state-machine-definition.asl.json
      DefinitionSubstitutions:
        StockActionRecommenderFunction: !GetAtt StockActionRecommenderFunction.Arn
        StockSellerFunctionArn: !GetAtt StockSellerFunction.Arn
        StockBuyerFunctionArn: !GetAtt StockBuyerFunction.Arn
      Policies: # Find out more about SAM policy templates: https://docs.aws.amazon.com/serverless-application-model/latest/developerguide/serverless-policy-templates.html
        - LambdaInvokePolicy:
            FunctionName: !Ref StockActionRecommenderFunction
        - LambdaInvokePolicy:
            FunctionName: !Ref StockSellerFunction
        - LambdaInvokePolicy:
            FunctionName: !Ref StockBuyerFunction
  
  StockActionRecommenderFunction:
    Type: AWS::Serverless::Function # More info about Function Resource: https://docs.aws.amazon.com/serverless-application-model/latest/developerguide/sam-resource-function.html
    Properties:
      CodeUri: lambda-fns/
      Handler: main.stock_transaction_recommender
      Runtime: python3.9

  StockSellerFunction:
    Type: AWS::Serverless::Function
    Properties:
      CodeUri: lambda-fns/
      Handler: main.stock_seller
      Runtime: python3.9

  StockBuyerFunction:
    Type: AWS::Serverless::Function
    Properties:
      CodeUri: lambda-fns/
      Handler: main.stock_buyer
      Runtime: python3.9