Class: TimePup::TimeParser

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

Constant Summary collapse

MATCHERS = 
{
  twelve_hour_with_period: /\d{1,4}[a|p]m/i,
  twenty_four_hour_with_minutes: /[0-2]{,1}\d[0-5]\d/,
  twenty_four_hour_without_minutes: /\d\d{,1}/,
}
AM_PM = 
/[a|p]m/i

Class Method Summary collapse

Class Method Details

.match_key_words(time) ⇒ Object 



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# File 'lib/time_pup/time_parser.rb', line 32

def match_key_words(time)
  MATCHERS.keys.inject([]) { |result, m| result << time.scan(MATCHERS[m]) }.flatten
end

.parse(parsable, zone = 'UTC') ⇒ Object 



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# File 'lib/time_pup/time_parser.rb', line 11

def parse(parsable, zone = 'UTC')
  matches = match_key_words(parsable)
  if matches.empty?
    return nil
  else
    time_part = matches.first
    case time_part.length
    when 1..2
      time_part = time_part + ':00'
    when 3..4
      unless time_part.match(AM_PM)
        time_part = time_part.insert(-3,':')
      end
    when 5..6
      time_part = time_part.insert(-5,':')
    end

    return set_time_in_future(time_part, zone)
  end
end

.set_time_in_future(time_part, zone) ⇒ Object 



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# File 'lib/time_pup/time_parser.rb', line 36

def set_time_in_future(time_part, zone)
  time = DateTime.parse(time_part)
  time_for_today = DateTime.now.to_time.in_time_zone(ActiveSupport::TimeZone[zone])
  time_for_today = time_for_today.change(hour: time.hour, min: time.min).utc
  if time_for_today < DateTime.now.to_time.utc
    time_for_today + 1.day
  else
    time_for_today
  end
end