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-rw-r--r--sublab_calendar.rb49
1 files changed, 49 insertions, 0 deletions
diff --git a/sublab_calendar.rb b/sublab_calendar.rb
new file mode 100644
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--- /dev/null
+++ b/sublab_calendar.rb
@@ -0,0 +1,49 @@
+require 'rubygems'
+require 'bundler/setup'
+
+require 'icalendar'
+require 'open-uri'
+require 'json'
+
+class SublabCalendar
+
+ URL = "https://sublab.org:5232/calendars/events"
+
+ Event = Struct.new(:summary, :start, :end) do
+ def to_json(*args)
+ to_h.to_json(*args)
+ end
+ end
+
+ attr_reader :calendar
+
+ def initialize(ical)
+ @calendar = Icalendar.parse(ical).first
+ end
+
+ def self.load(url=URL)
+ ical = open(url, {ssl_verify_mode: OpenSSL::SSL::VERIFY_NONE})
+ new(ical)
+ end
+
+ def events
+ calendar.events.map(&method(:readable))
+ end
+
+ def future
+ calendar.events.select {|ev| ev.dtstart >= DateTime.now}.map(&method(:readable))
+ end
+
+ def past
+ calendar.events.select {|ev| ev.dtstart < DateTime.now}.map(&method(:readable))
+ end
+
+ def next(count=1)
+ future.take(count)
+ end
+
+ def readable(event)
+ Event.new(event.summary, event.dtstart.to_s, event.dtend.to_s)
+ end
+
+end