Class: DateRangeRollout::Rollout

Inherits:
Object
  • Object
show all
Defined in:
lib/date_range_rollout/rollout.rb

Instance Method Summary collapse

Constructor Details

#initialize(start_duration, start_date, end_duration, end_date) ⇒ Rollout

Returns a new instance of Rollout.



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# File 'lib/date_range_rollout/rollout.rb', line 7

def initialize(start_duration, start_date, end_duration, end_date)
  if start_date > end_date
    raise DateRangeError, "Start date should be before end date"
  end

  @start_duration = start_duration
  @start_date = start_date
  @end_duration = end_duration
  @end_date = end_date
end

Instance Method Details

#get ⇒ Object 



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# File 'lib/date_range_rollout/rollout.rb', line 18

def get
  now = Time.now

  if now <= @start_date
    return @start_duration.to_f
  end

  if now >= @end_date
    return @end_duration.to_f
  end

  offset = now.to_f - @start_date.to_f
  pct = offset / (@end_date.to_f - @start_date.to_f)

  pct * (@end_duration - @start_duration) + @start_duration
end