Module: Physical_activity_recorder

Defined in:
lib/physical-activity-recorder.rb,
lib/physical-activity-recorder/version.rb

Constant Summary collapse

VERSION = 
'0.0.3'

Class Method Summary collapse

Class Method Details

.add_to_records(new_record, records) ⇒ void

This method returns an undefined value.

Add record.

Parameters:

  • ({String => (Fixnum, Fixnum, String)})
  • ({String => (Fixnum, Fixnum, String)}) 


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# File 'lib/physical-activity-recorder.rb', line 67

def add_to_records(new_record, records)
  activity_time = new_record.keys[0]
  if records.key?(activity_time)
    old = records[activity_time]
    new = (0..2).map do |i|
      old[i] + new_record[activity_time][i]
    end
    records[activity_time] = new
  # do not add empty records
  elsif new_record[activity_time].first(2).reduce(:+) == 0
    records
  else
    records[activity_time] = new_record[activity_time]
  end
end

.plan(current_time = Time.now, current_soft_end = Time.now, current_hard_end = Time.now, moderate_minutes = 0, vigorous_minutes = 0) ⇒ {Symbol => Time}

Plan physical activity

Parameters:

  • (Time)
  • (Time)
  • (Time)
  • (Fixnum)
  • (Fixnum)

Returns:

  • ({Symbol => Time}) 


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# File 'lib/physical-activity-recorder.rb', line 112

def plan(current_time=Time.now, current_soft_end=Time.now, current_hard_end=Time.now, moderate_minutes=0, vigorous_minutes=0)
  # Activity should be done for at least 10 minutes at a time.
  if moderate_minutes + vigorous_minutes < 10
    hard_end = current_hard_end
    soft_end = current_soft_end
  else
    # With vigorous activities, you get similar health benefits in half the time it takes you with moderate ones.
    increment_time = moderate_minutes + vigorous_minutes * 2
    # United States Department of Agriculture recommends at least 2 hours and 30 minutes each week
    # of aerobic physical activity at a moderate level.
    # 2 hours and 30 minutes is 150 (2 * 60 + 30) minutes per week,
    # and we set the hard end based on 168 (24 * 7) minutes per week, i.e. 1 minute for 1 hour.
    # I chose 168 for implement simplicity.
    hard_end = current_hard_end + increment_time.hours

    # United States Department of Agriculture suggests
    # 5 or more hours activity per week can provide even more health benefits.
    # 5 hours is  300 (5 * 60) minutes per week,
    # and we set the soft end based on 336 (24 * 7 * 2) minutes per week, i.e. 2 minutes for 1 hour.
    # Again, I chose 336 for  implement simplicity.
    soft_end = current_soft_end + (increment_time / 2).to_i.hours
  end

  # soft end and hard end should not exceed 7 days (1 week).
  result = {soft: soft_end, hard: hard_end}
  result.each do |k, v|
    result[k] = if (v  - current_time).abs < 7.days
          v
        elsif v > current_time
          current_time + 7.days
        else
          current_time - 7.days
        end
  end
  result
end

.record(activity_time = Time.now, moderate_minutes = 0, vigorous_minutes = 0, activity_notes = '') ⇒ {String => (Fixnum, Fixnum, String)}

Record physical activity.

Parameters:

  • (Time)
  • (Fixnum)
  • (Fixnum)
  • (String)

Returns:

  • ({String => (Fixnum, Fixnum, String)}) 


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# File 'lib/physical-activity-recorder.rb', line 37

def record(activity_time=Time.now, moderate_minutes=0, vigorous_minutes=0, activity_notes='')
  {activity_time.strftime('%F') => [moderate_minutes, vigorous_minutes, activity_notes]}
end