{
  "QueryLanguage": "JSONata",
  "StartAt": "RequestApproval",
  "States": {
    "RequestApproval": {
      "Type": "Task",
      "Resource": "arn:aws:states:::sqs:sendMessage.waitForTaskToken",
      "Arguments": {
        "QueueUrl": "https://sqs.us-east-1.amazonaws.com/123456789012/ApprovalQueue",
        "MessageBody": "{% $string({'taskToken': $states.context.Task.Token, 'orderId': $states.input.orderId, 'approver': $states.input.primaryApprover}) %}"
      },
      "TimeoutSeconds": 86400,
      "Assign": {
        "orderId": "{% $states.input.orderId %}",
        "approvalResult": "{% $states.result %}"
      },
      "Catch": [
        {
          "ErrorEquals": [
            "States.Timeout"
          ],
          "Assign": {
            "orderId": "{% $states.input.orderId %}",
            "managerApprover": "{% $states.input.managerApprover %}",
            "escalationReason": "Primary approver did not respond within 24 hours"
          },
          "Next": "EscalateToManager"
        },
        {
          "ErrorEquals": [
            "States.ALL"
          ],
          "Assign": {
            "approvalError": "{% $states.errorOutput %}"
          },
          "Next": "ApprovalFailed"
        }
      ],
      "Next": "EvaluateApproval"
    },
    "EscalateToManager": {
      "Type": "Task",
      "Resource": "arn:aws:states:::sns:publish",
      "Arguments": {
        "TopicArn": "arn:aws:sns:us-east-1:123456789012:EscalationNotifications",
        "Subject": "Approval Escalation",
        "Message": "{% 'Order ' & $orderId & ' requires manager approval. ' & $escalationReason %}"
      },
      "Next": "WaitForManagerApproval"
    },
    "WaitForManagerApproval": {
      "Type": "Task",
      "Resource": "arn:aws:states:::sqs:sendMessage.waitForTaskToken",
      "Arguments": {
        "QueueUrl": "https://sqs.us-east-1.amazonaws.com/123456789012/ApprovalQueue",
        "MessageBody": "{% $string({'taskToken': $states.context.Task.Token, 'orderId': $orderId, 'approver': $managerApprover, 'escalated': true}) %}"
      },
      "TimeoutSeconds": 43200,
      "Assign": {
        "approvalResult": "{% $states.result %}"
      },
      "Catch": [
        {
          "ErrorEquals": [
            "States.Timeout"
          ],
          "Assign": {
            "approvalResult": {
              "decision": "rejected",
              "reason": "No response from manager within 12 hours; auto-rejected"
            }
          },
          "Next": "EvaluateApproval"
        },
        {
          "ErrorEquals": [
            "States.ALL"
          ],
          "Assign": {
            "approvalError": "{% $states.errorOutput %}"
          },
          "Next": "ApprovalFailed"
        }
      ],
      "Next": "EvaluateApproval"
    },
    "EvaluateApproval": {
      "Type": "Choice",
      "Choices": [
        {
          "Condition": "{% $approvalResult.decision = 'approved' %}",
          "Next": "ProcessApprovedOrder"
        }
      ],
      "Default": "OrderRejected"
    },
    "ProcessApprovedOrder": {
      "Type": "Succeed"
    },
    "OrderRejected": {
      "Type": "Fail",
      "Error": "OrderRejected",
      "Cause": "{% $exists($approvalResult.reason) ? $approvalResult.reason : 'Approval denied' %}"
    },
    "ApprovalFailed": {
      "Type": "Fail",
      "Error": "ApprovalFailed",
      "Cause": "{% $exists($approvalError.Cause) ? $approvalError.Cause : 'Approval process encountered an error' %}"
    }
  }
}