{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "title": "Delete Enrolment Command Schema",
  "description": "Schema for the DeleteEnrolment command that represents the intent to remove a participant's enrolment from a screening program",
  "type": "object",
  "required": [
    "enrolmentId",
    "participantId",
    "programId",
    "reason",
    "deletedBy",
    "deletedAt"
  ],
  "properties": {
    "enrolmentId": {
      "type": "string",
      "description": "Unique identifier for the enrolment to be deleted"
    },
    "participantId": {
      "type": "string",
      "description": "Unique identifier for the participant"
    },
    "programId": {
      "type": "string",
      "description": "Unique identifier for the screening program"
    },
    "reason": {
      "type": "string",
      "enum": [
        "DECEASED",
        "MOVED_ABROAD",
        "OPTED_OUT",
        "TRANSFERRED",
        "INELIGIBLE",
        "ADMINISTRATIVE",
        "OTHER"
      ],
      "description": "Reason for deleting the enrolment"
    },
    "deletedBy": {
      "type": "string",
      "description": "Identifier of the person deleting the enrolment"
    },
    "deletedAt": {
      "type": "string",
      "format": "date-time",
      "description": "ISO 8601 timestamp when the enrolment is being deleted"
    },
    "reasonDetails": {
      "type": "string",
      "description": "Detailed explanation of the deletion reason"
    },
    "activeEpisodes": {
      "type": "array",
      "items": {
        "type": "object",
        "required": ["episodeId", "status"],
        "properties": {
          "episodeId": {
            "type": "string",
            "description": "Identifier of the active episode"
          },
          "status": {
            "type": "string",
            "enum": ["IN_PROGRESS", "SCHEDULED", "PENDING"],
            "description": "Current status of the episode"
          }
        }
      },
      "description": "List of active episodes that need to be handled"
    },
    "futureAppointments": {
      "type": "array",
      "items": {
        "type": "object",
        "required": ["appointmentId", "date"],
        "properties": {
          "appointmentId": {
            "type": "string",
            "description": "Identifier of the future appointment"
          },
          "date": {
            "type": "string",
            "format": "date-time",
            "description": "Date of the future appointment"
          }
        }
      },
      "description": "List of future appointments that need to be cancelled"
    },
    "dataRetention": {
      "type": "object",
      "properties": {
        "retentionPeriod": {
          "type": "integer",
          "description": "Number of days to retain the data"
        },
        "anonymizeData": {
          "type": "boolean",
          "description": "Whether to anonymize the data before deletion"
        }
      },
      "description": "Data retention preferences"
    },
    "notifications": {
      "type": "object",
      "properties": {
        "notifyParticipant": {
          "type": "boolean",
          "description": "Whether to notify the participant"
        },
        "notifyGP": {
          "type": "boolean",
          "description": "Whether to notify the participant's GP"
        },
        "notificationMethod": {
          "type": "string",
          "enum": ["EMAIL", "SMS", "POST", "NONE"],
          "description": "Preferred notification method"
        }
      },
      "description": "Notification preferences for the deletion"
    },
    "auditTrail": {
      "type": "array",
      "items": {
        "type": "object",
        "required": ["timestamp", "action", "actor"],
        "properties": {
          "timestamp": {
            "type": "string",
            "format": "date-time",
            "description": "ISO 8601 timestamp of the action"
          },
          "action": {
            "type": "string",
            "description": "Description of the action taken"
          },
          "actor": {
            "type": "string",
            "description": "Identifier of who performed the action"
          }
        }
      },
      "description": "Audit trail of actions related to the deletion"
    },
    "notes": {
      "type": "string",
      "description": "Additional notes about the enrolment deletion"
    }
  }
}