AWSTemplateFormatVersion: '2010-09-09'
Transform: AWS::Serverless-2016-10-31
Description: Chromakey and compositing service

Parameters:
  UploadBucketName:
    Type: String
  ProcessingBucketName:
    Type: String
  FinalBucketName:
    Type: String

Resources:
  ## S3 bucket
  UploadBucket:
    Type: AWS::S3::Bucket
    Properties:
      BucketName: !Ref UploadBucketName
  ProcessingBucket:
    Type: AWS::S3::Bucket
    Properties:
      BucketName: !Ref ProcessingBucketName
  FinalBucket:
    Type: AWS::S3::Bucket
    Properties:
      BucketName: !Ref FinalBucketName

  ## Lambda function - Chromakey processing
  ChromakeyFunction:
    Type: AWS::Serverless::Function 
    Properties:
      CodeUri: chromakeyCode/
      Handler: chromakey.lambda_handler
      Runtime: python3.6
      MemorySize: 4096
      Layers:
        - !Sub 'arn:aws:lambda:${AWS::Region}:678705476278:layer:Chromakey:1'
      Policies:
        - S3ReadPolicy:
            BucketName: !Ref UploadBucketName
        - S3CrudPolicy:
            BucketName: !Ref ProcessingBucketName
      Environment:
        Variables:
          OUTPUT_BUCKET_NAME: !Ref ProcessingBucketName
          HSV_LOWER: '[36, 100, 100]'
          HSV_UPPER: '[75 ,255, 255]'
      Events:
        FileUpload:
          Type: S3
          Properties:
            Bucket: !Ref UploadBucket
            Events: s3:ObjectCreated:*
            Filter: 
              S3Key:
                Rules:
                  - Name: suffix
                    Value: '.jpg'            

  ## Lambda function - Compositing
  CompositingFunction:
    Type: AWS::Serverless::Function 
    Properties:
      CodeUri: compositeCode/
      Handler: app.handler
      Runtime: nodejs12.x
      MemorySize: 2048
      Policies:
        - S3ReadPolicy:
            BucketName: !Ref ProcessingBucketName
        - S3CrudPolicy:
            BucketName: !Ref FinalBucketName
      Environment:
        Variables:
          OUTPUT_BUCKET_NAME: !Ref FinalBucketName            
      Events:
        FileUpload:
          Type: S3
          Properties:
            Bucket: !Ref ProcessingBucket
            Events: s3:ObjectCreated:*
            Filter: 
              S3Key:
                Rules:
                  - Name: suffix
                    Value: '.png'