Class: Synchrograph

Inherits:
Object
  • Object
show all
Defined in:
lib/synchrograph.rb

Overview

Glues together the API Client, the GCalendar and the ICalendar to create the right requests, in the right order and submit them

Instance Method Summary collapse

Constructor Details

#initialize(api_client) ⇒ Synchrograph

Returns a new instance of Synchrograph.



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# File 'lib/synchrograph.rb', line 11

def initialize(api_client)
  @client = api_client
end

Instance Method Details

#synchronise(gcalendar, icalendar) ⇒ Object 



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# File 'lib/synchrograph.rb', line 16

def synchronise(gcalendar, icalendar)

  ical_events = icalendar.first.events.find_all {|ie| ie.recurrence_id.nil?}
  gcal_events = gcalendar.events

  response_body = ""

  #Insert or update
  ical_events.each do |ie|
    ge = gcal_events.find {|ge| ge['id'] == ie.google_calendar_id}

    gcalendar.add_request_for_gcal_event_and_ical_event ge, ie
    
  end

  (gcal_events.find_all {|ge| ge['recurring_event_id'].nil? and not ical_events.map {|ie| ie.google_calendar_id}.include?(ge['id'])}).each do |ge|
    gcalendar.add_request_for_gcal_event_and_ical_event ge, nil
  end

  response_body << gcalendar.execute_requests.body

  #Now deal with recurrence exceptions
  ical_events = icalendar.first.events.find_all {|ie| not ie.recurrence_id.nil?}

  ical_events.group_by {|ie| ie.google_calendar_id}.each_pair do |ge_id, re_e|
    gcal_instances = gcalendar.instances_for_event_id ge_id

    re_e.each do |ie|
      instance = gcal_instances.find {|i| i.start.date_time == ie.recurrence_id}
      next if instance.nil?

      ie.update_from_parent_component!

      ie.google_calendar_id = instance.id
      gcalendar.add_request_for_gcal_event_and_ical_event(instance, ie)
    end
  end

  er = gcalendar.execute_requests
  response_body << er.body if er

  return response_body
end