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Contents
module Hatchet
class Reaper
# Class for figuring out how old a given time is relative to another time
#
# Expects inputs as a DateTime instance
#
# Example:
#
# time_now = DateTime.parse("2020-07-28T14:40:00Z")
# age = AppAge.new(created_at: DateTIme.parse("2020-07-28T14:40:00Z"), time_now: time_now, ttl_minutes: 1)
# age.in_minutes => 0.0
# age.too_young_to_die? # => true
# age.can_delete? # => false
# age.sleep_for_ttl #=> 60
class AppAge
SECONDS_IN_A_DAY = 24 * 60 * 60
attr_reader :ttl_minutes
def initialize(created_at:, ttl_minutes:, time_now: DateTime.now.new_offset(0))
@seconds_ago = date_time_diff_in_seconds(time_now, created_at)
@ttl_minutes = ttl_minutes
@ttl_seconds = ttl_minutes * 60
end
def date_time_diff_in_seconds(now, whence)
(now - whence) * SECONDS_IN_A_DAY
end
def too_young_to_die?
!can_delete?
end
def can_delete?
@seconds_ago > @ttl_seconds
end
def sleep_for_ttl
return 0 if can_delete?
@ttl_seconds - @seconds_ago
end
def in_minutes
(@seconds_ago / 60.0).round(2)
end
end
end
end
Version data entries
17 entries across 17 versions & 1 rubygems