mirror of
https://github.com/netz39/www.netz39.de.git
synced 2025-05-24 05:27:54 +02:00
96 lines
3.2 KiB
Ruby
96 lines
3.2 KiB
Ruby
require 'icalendar'
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require 'redcarpet'
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require 'redcarpet/render_strip'
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module Jekyll
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class IcsGenerator < Generator
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safe true
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priority :low
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def generate(site)
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events = site.collections['events'].docs
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default_organizer = "Netz39 Team <kontakt@netz39.de>"
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default_location = "Netz39 e.V., Leibnizstraße 32, 39104 Magdeburg"
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default_duration = Rational(4, 24)
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cal = Icalendar::Calendar.new
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# Define Europe/Berlin timezone with standard rules (incl. DST)
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cal.timezone do |t|
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t.tzid = "Europe/Berlin"
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# Daylight Saving Time (DST) adjustments (if applicable)
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t.daylight do |d|
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d.tzoffsetfrom = "-0100"
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d.tzoffsetto = "-0200"
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d.dtstart = "19700329T020000"
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d.tzname = "CEST"
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end
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# Standard Time definition
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t.standard do |s|
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s.tzoffsetfrom = "-0200"
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s.tzoffsetto = "-0100"
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s.dtstart = "19701025T030000"
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s.tzname = "CET"
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end
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end
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events.each do |event|
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title = event.data['title']
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start_date = event.data.dig('event', 'start') || event.data['event_date']
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end_date = event.data.dig('event', 'end') || event.data['event_date'] || start_date + default_duration
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organizer = event.data.dig('event', 'organizer') || default_organizer
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location = event.data.dig('event', 'location') || default_location
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rrule = event.data.dig('event', 'rrule')
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# Skip events older than 365 days
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next if start_date.to_date < (Date.today - 365)
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# Remove image URLs from description
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content = event.content
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content.gsub!(/\!\[.*?\]\((.*?)\)/, '')
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# Render Markdown content to plain text
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markdown_parser = Redcarpet::Markdown.new(Redcarpet::Render::StripDown)
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description = markdown_parser.render(content) + "\nMehr Infos unter #{site.config['url']}#{event.url}"
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# Create new event and set its properties
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ical_event = Icalendar::Event.new
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if start_date > end_date
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raise StandardError.new "#{File.basename(event.path)}: Start date must not be greater than end date"
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end
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if start_date < end_date
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ical_event.dtstart = Icalendar::Values::DateTime.new(start_date, 'tzid' => 'Europe/Berlin')
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ical_event.dtend = Icalendar::Values::DateTime.new(end_date, 'tzid' => 'Europe/Berlin')
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else
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ical_event.dtstart = Icalendar::Values::Date.new(start_date)
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ical_event.dtend = Icalendar::Values::Date.new(end_date)
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end
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if rrule
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ical_event.rrule = rrule
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end
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ical_event.summary = title
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ical_event.description = description
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ical_event.organizer = organizer
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ical_event.location = location
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cal.add_event(ical_event)
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end
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site.pages << IcalPage.new(site, site.source, 'feed/eo-events', "events.ics", cal)
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puts "Generated events.ics page from #{events.length} events"
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end
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end
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class IcalPage < Page
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def initialize(site, base, dir, name, calendar)
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@site = site
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@base = base
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@dir = dir
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@name = name
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self.process(name)
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self.content = calendar.to_ical
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self.data = {
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'layout' => nil
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}
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end
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end
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end
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