curfew_computation.rb

curfew_computation.rb

# returns value in decimal hours (e.g. 23.5 = 11:30pm)
def self.compute_curfew(user, verbose = false)
    targetHoursSleep = 7.5
    targetMinutesSleep = targetHoursSleep * 60

    minutesSleptType = ObservationType.find_by!(name: "minutes_slept_jawbone")
    curfewType = ObservationType.find_by!(name: "curfew")

    lastSleepObservation = DailyObservation.retrieve(minutesSleptType, { beforeDate: Date.today, user: user }).last

    recentMinutesSlept = DailyObservation.recentValue(minutesSleptType, { includeToday: false, user: user } )
    recentHoursSlept = recentMinutesSlept / 60.0
    deficitMinutesSleep = targetMinutesSleep - recentMinutesSlept

    recentCurfewHours = DailyObservation.recentValue(curfewType, { includeToday: false, user: user } )
    newCurfewHours = recentCurfewHours - (deficitMinutesSleep / 60.0)

  if (verbose)
    puts """
last:          #{TimeUtils.minutes_to_display(lastSleepObservation[:obs_value])} (on #{lastSleepObservation[:obs_date]})
recent sleep:  #{TimeUtils.hours_to_display(recentHoursSlept, false)}
target sleep:  #{TimeUtils.hours_to_display(targetHoursSleep, false)}
recent curfew: #{TimeUtils.hours_to_display(recentCurfewHours, true)}
new curfew:    #{TimeUtils.hours_to_display(newCurfewHours, true)}
"""
  end

  newCurfewHours
end