{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "#/components/schemas/Availability",
  "title": "Availability",
  "type": "object",
  "description": "A time window defining when a schedule or item is available.",
  "properties": {
    "day_of_week": {
      "type": "string",
      "description": "The day of the week this availability applies to.",
      "enum": [
        "MONDAY",
        "TUESDAY",
        "WEDNESDAY",
        "THURSDAY",
        "FRIDAY",
        "SATURDAY",
        "SUNDAY"
      ]
    },
    "start_time": {
      "type": "string",
      "description": "The start time in HH:mm format.",
      "pattern": "^\\d{2}:\\d{2}$"
    },
    "end_time": {
      "type": "string",
      "description": "The end time in HH:mm format.",
      "pattern": "^\\d{2}:\\d{2}$"
    }
  }
}