{
  "name": "Appointment",
  "fields": [
    { "name": "userId", "required": true },
    { "name": "employeeId", "required": true },
    { "name": "serviceId", "required": true },
    { "name": "dayScheduleId" },
    { "name": "time", "required": true },
    { "name": "status", "default": "pending" },
    { "name": "notes" },
    { "name": "paymentId" }
  ],
  "methods": [
    {
      "name": "confirm",
      "params": [],
      "body": "this.status = 'confirmed';"
    },
    {
      "name": "cancel",
      "params": [],
      "body": "this.status = 'cancelled';"
    },
    {
      "name": "complete",
      "params": [],
      "body": "this.status = 'completed';"
    }
  ]
}