Metadata:
   License: Apache-2.0
Description:
  "This template generates a TerraformLaunchLambda. The TerraformLaunchLambda is used to append
  send commands to the fulfillment hub account. Terraform wrapper templates should use this Lambda
  function's ARN for their custom resource's ServiceToken property. (fdp-1paht0f76)"


Parameters:
  FulfillmentHubAccountId:
    Type: String
    Description: The 12 digit ID of the fulfillment hub account containing the
                 TerraformWrapperServer that will be used to apply Terraform configurations.
    AllowedPattern: "^[0-9]{12}$"
  LambdaJarBucket:
    Type: String
    Default: ""
    Description: (Optional) The name of the S3 bucket containing the code for the terraform command
                 handler lambda function that sends commands to the TerraformWrapperServer. Defaults
                 to the S3 location of the reference implementation provided by Service Catalog.
  LambdaJarKey:
    Type: String
    Default: ""
    Description: (Optional) The key of the S3 object containing the code for the terraform command
                 handler lambda function that sends commands to the TerraformWrapperServer. Defaults
                 to the S3 location of the reference implementation provided by Service Catalog.
  FulfillmentRegion:
    Type: String
    Default: 'us-east-1'
    Description: (Optional) The region containing the terraform fulfillment server. Defaults to `us-east-1` of
                 the reference implementation provided by Service Catalog.

Conditions:
  UseDefaultJar: !And
    - !Equals [!Ref LambdaJarBucket, ""]
    - !Equals [!Ref LambdaJarKey, ""]

Resources:
  TerraformLaunchLambda:
    Type: AWS::Lambda::Function
    Properties:
      Code:
        S3Bucket: !If
          - UseDefaultJar
          - !Sub "scterraform-${FulfillmentHubAccountId}"
          - !Ref LambdaJarBucket
        S3Key: !If
          - UseDefaultJar
          - !Sub "TerraformCustomResourceHandler/bin/aws-servicecatalog-terraform-wrapper.jar"
          - !Ref LambdaJarKey
      Environment:
        Variables:
          HUB_SNS_TOPIC_ARN: !Sub arn:aws:sns:${FulfillmentRegion}:${FulfillmentHubAccountId}:terraform-commands-topic
      FunctionName: TerraformLaunchHandler
      Handler: com.amazon.servicecatalog.terraform.customresource.TerraformLaunchRequestHandler
      MemorySize: 512
      ReservedConcurrentExecutions: 50
      Role: !Sub arn:aws:iam::${AWS::AccountId}:role/TerraformLaunchLambdaRole
      Runtime: java8
      Timeout: 300