100 lines
3.4 KiB
Ruby
100 lines
3.4 KiB
Ruby
module JamRuby
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class CalendarManager < BaseManager
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DATE_FORMAT="%Y%m%dT%H%M%SZ"
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def initialize(options={})
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super(options)
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@log = Logging.logger[self]
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end
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def cancel_ics_event(music_session, user)
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Calendar.where(
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user_id: user.id,
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target_uid: music_session.id,
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name: music_session.description)
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.first_or_create(
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description: music_session.description,
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start_at: music_session.scheduled_start,
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end_at: music_session.scheduled_start+music_session.safe_scheduled_duration,
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trigger_delete: true)
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end
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# @return event (as ICS string) for a given music session
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def ics_event_from_music_session(music_session, delete=false)
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# Determine properties of calendar event and create:
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uid = "#{music_session.id}@JamKazam"
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text = "JamKazam Session #{music_session.description}"
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rrule = nil
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start_at = music_session.scheduled_start
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stop_at = music_session.scheduled_start+music_session.safe_scheduled_duration
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if !delete && music_session.recurring_mode==MusicSession::RECURRING_WEEKLY
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rrule = "FREQ=WEEKLY;INTERVAL=1"
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end
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create_ics_event(uid, text, text, start_at, stop_at, delete, rrule)
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end
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# @return event (as ICS string) for a given music session
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def ics_event_from_calendar(calendar)
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# Determine properties of calendar event and create:
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rrule = nil
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if !calendar.trigger_delete && calendar.recurring_mode==MusicSession::RECURRING_WEEKLY
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rrule = "FREQ=WEEKLY;INTERVAL=1"
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end
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create_ics_event(
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calendar.target_uid,
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"JamKazam Session #{calendar.name}",
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calendar.description,
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calendar.start_at,
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calendar.end_at,
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calendar.trigger_delete,
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rrule
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)
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end
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# @return calendar (as ICS string) for specified user
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# Includes all RSVPed sessions, as well as any calendar
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# entries for the given user:
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def create_ics_feed(user)
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ics_events = ""
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MusicSession.scheduled_rsvp(user, true).each do |music_session|
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ics_events << "\r\n" if(ics_events.length != 0)
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ics_events << ics_event_from_music_session(music_session)
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end
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user.calendars.each do |user|
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ics_events << "\r\n" if(ics_events.length != 0)
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ics_events << ics_event_from_calendar(user)
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end
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create_ics_cal(ics_events)
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end
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# @return event (as ICS string) for given arguments
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def create_ics_event(uuid, name, description, start_at, end_at, delete=false, rrule=nil, sequence=nil)
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uuid ||= UUID.timestamp_create
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event = "BEGIN:VEVENT\r\n"
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event << "UID:#{uuid}\r\n"
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event << "DTSTAMP:#{Time.now.utc().strftime(DATE_FORMAT)}\r\n"
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event << "DTSTART:#{start_at.utc().strftime(DATE_FORMAT)}\r\n"
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event << "DTEND:#{end_at.utc().strftime(DATE_FORMAT)}\r\n"
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event << "SUMMARY:#{name}\r\n"
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event << "DESCRIPTION:#{description}\r\n"
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if delete
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event << "METHOD:CANCEL\r\n"
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event << "STATUS:CANCELLED\r\n"
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end
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if rrule
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event << "RRULE:#{rrule}\r\n"
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end
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event << "SEQUENCE:#{sequence}\r\n" if sequence
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event << "END:VEVENT"
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end
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# @return calendar (as ICS string) for specified events
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def create_ics_cal(ics_events)
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"BEGIN:VCALENDAR\r\nVERSION:2.0\r\nPRODID:JamKazam\r\n#{ics_events}\r\nEND:VCALENDAR"
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end
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end # class
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end # module |