class RedisStore
  include Singleton

  @store = Redis.new

  class << self

    def store_activity(a)
      @store.sadd("activities", {tkey => a}.to_json)
      @store.pop("activities") if @store.scard("activities") == 11
    end

    def get_activities
      vals = []
      @store.smembers("activities").map!{|x|
        x = JSON.parse(x)
        vals << (x[x.keys.first])
      }
      return vals
    end

    def get(k)
      r = @store.get(k)
      r.nil? ? [] : JSON.parse(r)
    end

    def tkey
      t = Time.now
      t.year.to_s <<
      t.month.to_s <<
      t.day.to_s <<
      t.hour.to_s <<
      t.min.to_s <<
      t.sec.to_s <<
      t.usec.to_s
    end
  end
end