{
  "name": "Certification",
  "type": "object",
  "properties": {
    "employee_id": {
      "type": "string",
      "description": "Staff member ID"
    },
    "employee_name": {
      "type": "string",
      "description": "Staff member name"
    },
    "vendor_id": {
      "type": "string",
      "description": "Vendor ID who owns this employee"
    },
    "vendor_name": {
      "type": "string",
      "description": "Vendor name"
    },
    "certification_type": {
      "type": "string",
      "enum": [
        "Background Check",
        "RBS",
        "Food Handler"
      ],
      "description": "Type of certification - all 3 are required for every employee"
    },
    "status": {
      "type": "string",
      "enum": [
        "current",
        "expiring_soon",
        "expired",
        "pending"
      ],
      "default": "pending",
      "description": "Current status of certification"
    },
    "issue_date": {
      "type": "string",
      "format": "date",
      "description": "Date certification was issued"
    },
    "expiry_date": {
      "type": "string",
      "format": "date",
      "description": "Date certification expires"
    },
    "issuer": {
      "type": "string",
      "description": "Name of issuing authority"
    },
    "certificate_number": {
      "type": "string",
      "description": "Certificate number or ID"
    },
    "document_url": {
      "type": "string",
      "description": "URL to uploaded certificate document"
    },
    "days_until_expiry": {
      "type": "number",
      "description": "Auto-calculated days until expiry"
    },
    "alert_sent_30_days": {
      "type": "boolean",
      "default": false,
      "description": "Has 30-day expiry alert been sent"
    },
    "last_alert_date": {
      "type": "string",
      "format": "date-time",
      "description": "When last alert was sent"
    },
    "notes": {
      "type": "string",
      "description": "Additional notes about this certification"
    }
  },
  "required": [
    "employee_id",
    "employee_name",
    "certification_type",
    "expiry_date"
  ]
}