login_driver?

gistfile1.rb

require 'time'

SHIFTS = [
  {id: 1, shiftStart: "2014-07-08 09:00:42 -0700", shiftEnd: "2014-07-08 18:00:42 -0700"},
  {id: 1, shiftStart: "2014-07-08 06:57:42 -0700", shiftEnd: "2014-07-08 08:57:42 -0700"},
  {id: 1, shiftStart: "2014-07-08 01:57:42 -0700", shiftEnd: "2014-07-08 05:57:42 -0700"},
  {id: 1, shiftStart: "2014-07-07 06:57:42 -0700", shiftEnd: "2014-07-07 12:57:42 -0700"},
  {id: 1, shiftStart: "2014-07-06 05:57:42 -0700", shiftEnd: "2014-07-06 11:57:42 -0700"}
]

def login_driver?
  active_shifts = active_shifts(SHIFTS)
  if twelve_hours?(active_shifts)
    puts "can't login driver...driving too long"
    return false
 else
    puts "login driver...not more than 12 hours"
    return true
 end
end

def twelve_hours?(shifts)
  total_time = 0
  shifts.each do |shift|
    total_time += (Time.parse(shift[:shiftEnd]) - Time.parse(shift[:shiftStart]))
  end
  puts "current total time: #{total_time / 60 / 60} hours"
  if total_time >= 43_200 # 12 hours
    return true
  else
    return false
  end
end

def active_shifts(shifts)
  last_active_shift = nil

  shifts.each_with_index do |shift, index|
    last_shift_end = Time.parse(shifts[index + 1][:shiftEnd])
    if (Time.parse(shift[:shiftStart]) - last_shift_end) >= 28_800 # 8 hours
      last_active_shift = index
      break
    end
  end
  shifts[0..last_active_shift]
end

login_driver?