// RFC 5545 (iCalendar) Recurrence Rule types
// Based on the iCalendar specification for RRULE

export type Frequency = 'SECONDLY' | 'MINUTELY' | 'HOURLY' | 'DAILY' | 'WEEKLY' | 'MONTHLY' | 'YEARLY'

export type Weekday = 'SU' | 'MO' | 'TU' | 'WE' | 'TH' | 'FR' | 'SA'

export interface RecurrenceRule {
  freq: Frequency
  until?: string // ISO 8601 date string
  count?: number
  interval?: number
  bySecond?: number[]
  byMinute?: number[]
  byHour?: number[]
  byDay?: string[]
  byMonthDay?: number[]
  byYearDay?: number[]
  byWeekNo?: number[]
  byMonth?: number[]
  bySetPos?: number[]
  wkst?: Weekday
}