AWSTemplateFormatVersion: "2010-09-09"
Transform: AWS::Serverless-2016-10-31

Globals:
  Function:
    MemorySize: 128
    Timeout: 5
    Runtime: nodejs14.x
    Architectures:
      - x86_64
    Tracing: Active
    Environment:
      Variables:
        TABLE: !Ref Table

Resources:
  GetProductFunction:
    Type: AWS::Serverless::Function
    Properties:
      CodeUri: src/functions/get-product
      Handler: get-product.handler
      Events:
        Api:
          Type: Api
          Properties:
            Path: /product/{id}
            Method: GET
      Policies:
        - Version: "2012-10-17"
          Statement:
            - Effect: Allow
              Action: dynamodb:GetItem
              Resource: !GetAtt Table.Arn

  GetProductsFunction:
    Type: AWS::Serverless::Function
    Properties:
      CodeUri: src/functions/get-products
      Handler: get-products.handler
      Events:
        Api:
          Type: Api
          Properties:
            Path: /product
            Method: GET
      Policies:
        - Version: "2012-10-17"
          Statement:
            - Effect: Allow
              Action: dynamodb:Scan
              Resource: !GetAtt Table.Arn

  DeleteProductFunction:
    Type: AWS::Serverless::Function
    Properties:
      CodeUri: src/functions/delete-product
      Handler: delete-product.handler
      Events:
        Api:
          Type: Api
          Properties:
            Path: /product/{id}
            Method: DELETE
      Policies:
        - Version: "2012-10-17"
          Statement:
            - Effect: Allow
              Action: dynamodb:DeleteItem
              Resource: !GetAtt Table.Arn

  PutProductFunction:
    Type: AWS::Serverless::Function
    Properties:
      CodeUri: src/functions/put-product
      Handler: put-product.handler
      Events:
        Api:
          Type: Api
          Properties:
            Path: /product
            Method: PUT
      Policies:
        - Version: "2012-10-17"
          Statement:
            - Effect: Allow
              Action: dynamodb:PutItem
              Resource: !GetAtt Table.Arn

  Table:
    Type: AWS::DynamoDB::Table
    Properties:
      AttributeDefinitions:
        - AttributeName: id
          AttributeType: S
      BillingMode: PAY_PER_REQUEST
      KeySchema:
        - AttributeName: id
          KeyType: HASH

  # EventBus:
  #   Type: AWS::Events::EventBus
  #   Properties:
  #     Name: serverless-demo-event-bus

  # EventRule: 
  #   Type: AWS::Events::Rule
  #   Properties: 
  #     Description: "Serverless demo event rule"
  #     EventBusName: "serverless-demo-event-bus"
  #     EventPattern: 
  #       source: 
  #         - "serverless.demo"
  #       detail: 
  #         state: 
  #           - "ProductCreationRequested"
  #     State: "ENABLED"
  #     Targets: 
  #       - 
  #         Arn: 
  #           Fn::GetAtt: 
  #             - "PutProductFunction"
  #             - "Arn"
  #         Id: "CreateProductServiceTarget"

  # PermissionForEventsToInvokeLambda: 
  #   Type: AWS::Lambda::Permission
  #   Properties: 
  #     FunctionName: 
  #       Ref: "PutProductFunction"
  #     Action: "lambda:InvokeFunction"
  #     Principal: "events.amazonaws.com"
  #     SourceArn: 
  #       Fn::GetAtt: 
  #         - "EventRule"
  #         - "Arn"