AWSTemplateFormatVersion: '2010-09-09'
Transform: AWS::Serverless-2016-10-31
Description: docrepo-converters

Resources:
  # EventBridge rules 
  EventRulePDF: 
    Type: AWS::Events::Rule
    Properties: 
      Description: "docrepo-converters-pdf"
      State: "ENABLED"
      EventPattern: 
        source: 
          - "docRepo.s3"
        detail-type:
          - PutObject
        detail: 
          type: 
            - "pdf"
      Targets: 
        - Arn: 
            Fn::GetAtt: 
              - "ProcessPDFFunction"
              - "Arn"
          Id: "PDF"            

  EventRuleDOCX: 
    Type: AWS::Events::Rule
    Properties: 
      Description: "docrepo-converters-docx"
      State: "ENABLED"
      EventPattern: 
        source: 
          - "docRepo.s3"
        detail-type:
          - PutObject
        detail: 
          type: 
            - "docx"
      Targets: 
        - Arn: 
            Fn::GetAtt: 
              - "ProcessDOCXFunction"
              - "Arn"
          Id: "DOCX"    

  # EventBridge permissions to invoke Lambda functions
  PermissionForEventsToInvokeLambdaPDF: 
    Type: AWS::Lambda::Permission
    Properties: 
      FunctionName: 
        Ref: "ProcessPDFFunction"
      Action: "lambda:InvokeFunction"
      Principal: "events.amazonaws.com"
      SourceArn: 
        Fn::GetAtt: 
          - "EventRulePDF"
          - "Arn"

  PermissionForEventsToInvokeLambdaDOCX: 
    Type: AWS::Lambda::Permission
    Properties: 
      FunctionName: 
        Ref: "ProcessDOCXFunction"
      Action: "lambda:InvokeFunction"
      Principal: "events.amazonaws.com"
      SourceArn: 
        Fn::GetAtt: 
          - "EventRuleDOCX"
          - "Arn"          

  # Lambda functions
  ProcessPDFFunction:
    Type: AWS::Serverless::Function 
    Properties:
      CodeUri: processPDF/
      Handler: app.handler
      Runtime: nodejs12.x
      Timeout: 15
      MemorySize: 512
      Policies:
        - !Sub 'arn:aws:iam::${AWS::AccountId}:policy/docrepo-s3-read-policy'
        - Statement:
          - Effect: Allow
            Resource: '*'
            Action:
              - events:PutEvents           

  ProcessDOCXFunction:
    Type: AWS::Serverless::Function 
    Properties:
      CodeUri: processDOCX/
      Handler: app.handler
      Runtime: nodejs12.x
      Timeout: 15
      MemorySize: 512
      Policies:
        - !Sub 'arn:aws:iam::${AWS::AccountId}:policy/docrepo-s3-read-policy'
        - Statement:
          - Effect: Allow
            Resource: '*'
            Action:
              - events:PutEvents