```ruby
require 'ruby_jawbone/file_readers/base'

module RubyJawbone
  module FileReaders
    class Jawbone < Base
      #
    end
  end
end
```

Make a start on parsing the Jawbone data file and figuring out what each value represents (some of the column names are pretty cryptic).
user
```ruby
require 'ruby_jawbone/file_readers/base'
require 'csv'

module RubyJawbone
  module FileReaders
    class Jawbone < Base
      attr_reader :file

      def initialize(file)
        @file = file
      end

      def parse_file
        {:activity => [], :sleep => []}.tap do |results|
          CSV.foreach(file, :headers => :first_row) do |row|
            date = Date.strptime(row[0], "%Y%m%d")

            results[:activity] << {
              :date => date,
              :steps => row[12].to_i, # Total steps taken.
              :distance => row[8].to_i, # Total distance travelled (in meters).
              :time_active => row[6].to_i, # Total active time (in seconds).
              :time_inactive => row[9].to_i, # Total inactive time (in seconds).
              :longest_time_active => row[10].to_i, # Longest time active (in seconds).
              :longest_time_inactive => row[11].to_i, # Longest time idle (in seconds).
              :calories_burned_through_activity => row[7].to_i, # Number of calories burned directly from activity.
              :total_calories_burned => row[13].to_i # Total number of calories burned (including BMR [Basal Metabolic Rate]).
            }

            results[:sleep] << {
              :date => date,

              # TODO (these three): Seconds to/from midnight. If negative, subtract from midnight. If positive, add to midnight.
              :s_bedtime => row[20], # Time entered sleep mode.
              :s_asleep_time => row[16], # Time fell asleep.
              :s_awake_time => row[18], # Final time woken up.

              :total_time_asleep => row[23].to_i, # Total time asleep during sleep period (in seconds).
              :time_in_light_sleep => row[24].to_i, # Time in light sleep during sleep period (in seconds).
              :time_in_deep_sleep => row[22].to_i, # Time in deep sleep during sleep period (in seconds).
              :time_awake => row[17].to_i, # Time awake during sleep period (in seconds).
              :times_awake => row[19].to_i # Times woken up during sleep period.
            }
          end
        end
      end
    end
  end
end
```
assistant