app/lib/activity_tracker.rb

   1 # frozen_string_literal: true
   2
   3 class ActivityTracker
   4   EXPIRE_AFTER = 90.days.seconds
   5
   6   class << self
   7     def increment(prefix)
   8       key = [prefix, current_week].join(':')
   9
  10       redis.incrby(key, 1)
  11       redis.expire(key, EXPIRE_AFTER)
  12     end
  13
  14     def record(prefix, value)
  15       key = [prefix, current_week].join(':')
  16
  17       redis.pfadd(key, value)
  18       redis.expire(key, EXPIRE_AFTER)
  19     end
  20
  21     private
  22
  23     def redis
  24       Redis.current
  25     end
  26
  27     def current_week
  28       Time.zone.today.cweek
  29     end
  30   end
  31 end