module TimeWindow

call(window, time = now) click to toggle source

Retrieve the formatted date time window. The `time` param defaults to the current time. Returns a `Time` object.

Accept units are: s (second), m (minute), h (hour).

TimeWindow.call("5m")
#=> 2018-12-10 05:40:00 -0800

# File lib/time_window.rb, line 32
def self.call(window, time = now)
  _, window, unit = *window.match(/\A(\d+)(.)\z/)

  window = Integer(window)
  unit = ALIASES.fetch(unit) { raise InvalidUnit, "#{unit.inspect} is not a valid unit" }

  hour, minute, second = public_send("process_#{unit}_window", time, window)

  Time.new(time.year, time.month, time.day, hour, minute, second)
end

now() click to toggle source

# File lib/time_window.rb, line 19
def self.now
  now_proc.call
end

process_hour_window(time, window) click to toggle source

# File lib/time_window.rb, line 59
def self.process_hour_window(time, window)
  raise InvalidWindow, "#{window.inspect} must be covered by 1..23" unless (1..23).cover?(window)

  hour = time.hour - (time.hour % window)

  [hour, 0, 0]
end

process_minute_window(time, window) click to toggle source

# File lib/time_window.rb, line 51
def self.process_minute_window(time, window)
  raise InvalidWindow, "#{window.inspect} must be covered by 1..59" unless (1..59).cover?(window)

  minute = time.min - (time.min % window)

  [time.hour, minute, 0]
end

process_second_window(time, window) click to toggle source

# File lib/time_window.rb, line 43
def self.process_second_window(time, window)
  raise InvalidWindow, "#{window.inspect} must be covered by 1..59" unless (1..59).cover?(window)

  second = time.sec - (time.sec % window)

  [time.hour, time.min, second]
end

Constants

Attributes

Public Class Methods