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 20

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

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

    component.find_components('VEVENT').each do |vevent|
      next if vevent.find_property('RECURRENCE-ID') # 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