---
AWSTemplateFormatVersion: "2010-09-09"
Description: This is the CloudFormation Template that creates reources for KinesisVideoRekognitionLambdaExample. 
Parameters:
  LambdaFunctionBucket:
    Type: String
    Description: S3 bucket that holds the Lambda Function which parses inference output. E.g., "yourS3BucketName"
  LambdaFunctionKey:
    Type: String
    Description: S3 key of the Lambda Function which parses inference output. E.g., "yours3path/amazon-kinesis-video-streams-parser-library-1.0.10-shaded.jar"
  KVSStreamName:
    Type: String
    Description: Input KVS Stream Name created in https://docs.aws.amazon.com/rekognition/latest/dg/recognize-faces-in-a-video-stream.html
  KDSStreamArn:
    Type: String
    Description: KDS StreamArn, created in https://docs.aws.amazon.com/rekognition/latest/dg/recognize-faces-in-a-video-stream.html
Resources:
  LambdaRole:
    Type: "AWS::IAM::Role"
    Properties:
      AssumeRolePolicyDocument:
        Version: "2012-10-17"
        Statement:
          - Effect: Allow
            Principal:
              Service: 
                - "lambda.amazonaws.com"
            Action:
              - "sts:AssumeRole"
      Path: "/"
      Policies:
        -
          PolicyName: "LambdaPolicy"
          PolicyDocument:
            Version: "2012-10-17"
            Statement:
              -
                Sid: "ParserLibRekognitionLambdaExamplePolicy"
                Effect: "Allow"
                Action:
                  - "dynamodb:*"
                  - "logs:CreateLogGroup"
                  - "logs:CreateLogStream"
                  - "logs:PutLogEvents"
                  - "kinesis:Get*"
                  - "kinesis:List*"
                  - "kinesis:Describe*"
                  - "kinesisvideo:*"
                  - "s3:*"
                Resource:
                  - "*"
  LambdaFunctionProcessingRekognitionResult:
    Type: "AWS::Lambda::Function"
    Properties:
      Handler: "com.amazonaws.kinesisvideo.parser.examples.lambda.KinesisVideoRekognitionLambdaExample::handleRequest"
      Role: !GetAtt LambdaRole.Arn
      Code: 
        S3Bucket: {"Fn::Sub": "${LambdaFunctionBucket}"}
        S3Key: {"Fn::Sub": "${LambdaFunctionKey}"}
      Runtime: "java8"
      Environment:
        Variables:
          DISPLAY: localhost:0.0
          JAVA_TOOL_OPTIONS: {"Fn::Sub": "-Djava.awt.headless=true -DKVSStreamName=${KVSStreamName} -Dlog4j.debug"}
      Timeout: "300"
      MemorySize: "3008"
      ReservedConcurrentExecutions: 1
  LambdaTrigger:
    Type: "AWS::Lambda::EventSourceMapping"
    Properties:
      BatchSize: 100
      Enabled: True
      EventSourceArn: {"Fn::Sub": "${KDSStreamArn}"}
      FunctionName: !Ref LambdaFunctionProcessingRekognitionResult
      StartingPosition: "LATEST"