class TimeCalculator

# File lib/time_calculator.rb, line 2
def self.calculate(started_at)
  time_diff = (Time.now - started_at)
              minute_diff = (time_diff / 1.minute)
              hour_diff = (time_diff / 1.hour)
              day_diff = (time_diff / 1.day)
              month_diff = (time_diff / 1.month)
              year_diff = (time_diff / 1.year)

              minute = minute_diff.round
              hour = hour_diff.round
              day = day_diff.round
              month = month_diff.round
              year = year_diff.round
              if year_diff >= 1
                      time = "#{year} years ago."
              elsif month_diff >= 1
                      time = "#{month} months ago."
              elsif day_diff >= 1
                      time = "#{day} days ago."
              elsif hour_diff >= 1
                      time = "#{hour} hours ago."
              elsif minute_diff >= 1
                      time = "#{minute} minutes ago."
              else
                      time = "#{t 'just_now'}"
              end
              return time
end