Module: Protocol::Caldav::Ical::FreeBusy

Defined in:
lib/protocol/caldav/ical/freebusy.rb

Class Method Summary collapse

Class Method Details

.generate(items, range_start:, range_end:) ⇒ String

Generate a VCALENDAR containing VFREEBUSY from a list of calendar items.

Parameters:

  • items (Array) —

    items with .body method returning iCal strings

  • range_start (Time) —

    query range start

  • range_end (Time) —

    query range end

Returns:

  • (String) —

    serialized VCALENDAR with VFREEBUSY



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# File 'lib/protocol/caldav/ical/freebusy.rb', line 17

def generate(items, range_start:, range_end:)
  busy_periods = []
  free_periods = []

  items.each do |item|
    component = Parser.parse(item.body)
    unless component
      next
    end

    component.find_components('VEVENT').each do |vevent|
      if vevent.find_property('RECURRENCE-ID')
        next
      end # skip overrides in this pass

      status = vevent.find_property('STATUS')&.value&.strip&.upcase
      transp = vevent.find_property('TRANSP')&.value&.strip&.upcase

      is_free = status == 'CANCELLED' || transp == 'TRANSPARENT'

      rrule = vevent.find_property('RRULE')
      if rrule
        collect_recurring_periods(
          vevent,
          rrule,
          range_start,
          range_end,
          is_free,
          busy_periods,
          free_periods,
        )
      else
        collect_single_period(
          vevent,
          range_start,
          range_end,
          is_free,
          busy_periods,
          free_periods,
        )
      end
    end
  end

  serialize_freebusy(
    busy_periods,
    free_periods,
    range_start,
    range_end,
  )
end