# Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
# SPDX-License-Identifier: MIT-0

Comment: EventBridge event transaction data fraud detection workflow
StartAt: Get transaction prediction
States:
  Get transaction prediction:
    Type: Task
    Parameters:
      DetectorId: "${FraudDetectorID}"
      Entities:
        - EntityId: unknown
          EntityType: customer
      EventId.$: $.transaction_id
      EventTimestamp.$: $.transaction_timestamp
      EventTypeName: transaction_event
      EventVariables:
        customer_email.$: $.customer_email
        order_price.$: $.order_price
        product_category.$: $.product_category
        ip_address.$: $.ip_address
        card_bin.$: $.card_bin
    Resource: arn:aws:states:::aws-sdk:frauddetector:getEventPrediction
    ResultPath: $.detail.FraudDetectorOutput
    Next: Is transaction suspicious?
    InputPath: $.detail
  Is transaction suspicious?:
    Type: Choice
    Choices:
      - Not:
          Variable: $.detail.FraudDetectorOutput.RuleResults[0].Outcomes[0]
          StringMatches: approve
        Next: Publish suspicious transaction for review
    Default: Put enriched transaction to destination bus
  Publish suspicious transaction for review:
    Type: Task
    Resource: arn:aws:states:::sns:publish
    Parameters:
      TopicArn: "${FraudAlertsTopicArn}"
      Message:
        transaction_id.$: $.detail.transaction_id
        fraud_detection_outcome.$: $.detail.FraudDetectorOutput.RuleResults[0].Outcomes[0]
        fraud_detection_score.$: >-
          $.detail.FraudDetectorOutput.ModelScores[0].Scores.transaction_model_insightscore
    Next: Put enriched transaction to destination bus
  Put enriched transaction to destination bus:
    Type: Task
    Resource: arn:aws:states:::aws-sdk:eventbridge:putEvents
    Parameters:
      Entries:
        - Detail.$: $.detail
          DetailType.$: $.detail-type
          Source.$: $.source
          EventBusName: "${EnrichedDataEventBusName}"
    End: true