Record the geolocation record via IFTTT

kintai.rb

#!/usr/bin/env ruby

require 'time'
require 'json'

unless ARGV.length == 1
  puts "Usage: ruby kintai.rb [input file]"
  exit 1
end

lines =
  File.new(ARGV.first).
  readlines.
  map(&:strip).
  reject(&:empty?).
  map { |v| JSON.parse(v) }.
  map { |v|
    at = Time.strptime(v['at'], "%B %d, %Y at %I:%M%p")
    OpenStruct.new({
      'entered?': v['action'] == 'entered',
      'exited?': v['action'] == 'exited',
      at: at,
      date: at.to_date
    })
  }.
  group_by(&:date).
  reduce({}) { |acc, (date, list)|
    acc.merge({
      date.strftime('%Y/%m/%d') => {
        entered: list.select(&:entered?).sort_by(&:at).first.at.strftime('%H:%M'),
        exited: list.select(&:exited?).sort_by(&:at).last.at.strftime('%H:%M')
      }
    })
  }

puts lines.to_json