{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://rig.works/schemas/rig.calendar.recurrence.schema.json",
  "title": "rig.calendar.recurrence",
  "type": "object",
  "additionalProperties": false,
  "properties": {
    "frequency": {
      "type": "string",
      "enum": [
        "daily",
        "weekly",
        "monthly",
        "yearly"
      ]
    },
    "interval": {
      "type": "integer",
      "minimum": 1
    },
    "count": {
      "type": "integer",
      "minimum": 1
    },
    "untilDate": {
      "type": "string",
      "pattern": "^[0-9]{4}-[0-9]{2}-[0-9]{2}$",
      "description": "ISO 8601 calendar date."
    },
    "byWeekday": {
      "type": "array",
      "items": {
        "type": "boolean"
      },
      "minItems": 7,
      "maxItems": 7
    }
  },
  "required": [
    "frequency"
  ]
}