Laundry Day Generator

laundry_day_generator.rb

require 'date'
require 'icalendar'

# Washday-ICS Generator
# /////////////////////////
# Author: Simon Huber
# Description: This script generates an ics file with a series of laundry_days.
# We are 5 parties and there are always 2 consecutive days, but not Sunday.

year = 2021
first_laundry_day_of_year = Date.new(year, 1, 8)
current_date = first_laundry_day_of_year

events = []
while current_date.year == year
  events.push(current_date)
  current_date += current_date.wday > 2 ? 12 : 11
end

cal = Icalendar::Calendar.new

events.each do |date|
  event = Icalendar::Event.new
  event.dtstart = Icalendar::Values::Date.new(date)
  event.dtend = Icalendar::Values::Date.new(date + 2)
  event.summary = 'Laundry day'
  event.transp = 'TRANSPARENT'
  cal.add_event(event)
end
File.open('laundry_days.ics', 'w') { |file| file.write(cal.to_ical) }