Module: GracefulRounding

Included in:
Time
Defined in:
lib/graceful_rounding.rb,
lib/graceful_rounding/version.rb

Constant Summary collapse

VERSION = 
"0.0.1"

Instance Method Summary collapse

Instance Method Details

#graceful_rounding ⇒ Object

takes a Time object and rounds the minutes within a grace period (+/- 7 min of the quarter hour) returns a new time object

Raises:

  • (ArgumentError) 


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# File 'lib/graceful_rounding.rb', line 7

def graceful_rounding
  raise ArgumentError, 'Argument is not Time class' unless self.is_a? Time 
  
  @time = self
  mins = @time.min

  if mins == 00
    return @time
  elsif (1..7).cover?(mins)
    return @time -= (mins*60)
  elsif (8..14).cover?(mins)
    return @time += (15 - mins)*60
  elsif mins == 15
    return @time
  elsif (16..22).cover?(mins)
    return @time -= (mins - 15)*60
  elsif (23..29).cover?(mins)
    return @time += (30 - mins)*60
  elsif mins == 30
    return @time
  elsif (31..37).cover?(mins)
    return @time -= (mins - 30)*60
  elsif (38..44).cover?(mins)
    return @time += (45 - mins)*60
  elsif mins == 45
    return @time
  elsif (46..52).cover?(mins)
    return @time -= (mins - 45)*60
  elsif (53..59).cover?(mins)
    return @time += (60 - mins)*60
  else
    raise 'value of Time.min is not between 00..59'
  end
  
end