vegantech/sims

class PrimeCache
  extend FlagsHelper
  extend ActionView::Helpers::AssetTagHelper
  extend ActionView::Helpers::UrlHelper
  extend ActionView::Helpers::TagHelper
  extend ActionView::Helpers::TextHelper

  def self.config
    ApplicationController.new.instance_variable_get("@_config")
  end

  def self.flags
    pids = `ps wx |grep -v grep |grep 'runner' |grep 'PrimeCache'| grep -v 'nice' |cut -f 1 -d' '`
    if pids.split("\n").size > 1
      puts "Script already running"
      exit 0
    end

    ctrl = ApplicationController.new
    hit=0
    miss=0
    last_ran_key= ctrl.fragment_cache_key("prime_cache_last_ran")
    last_ran = ctrl.read_fragment(last_ran_key) || 10.years.ago
    this_run = Time.now.to_s

    Student.select("students.id,students.updated_at").with_comments_count.with_pending_consultations_count.where(
      ["students.updated_at > ?",last_ran.to_time]).find_in_batches do |batch|
      ActiveRecord::Associations::Preloader.new(batch,[{flags: :user},{ignore_flags: :user},{custom_flags: :user}, {:interventions=>[:user, :intervention_definition]}]).run
      batch.each do |student|
        key = ctrl.fragment_cache_key  ["status_display",student]
        if Rails.cache.exist?(key)
          hit+=1
        else
          miss+=1
          Rails.cache.write key, ctrl.view_context.status_display(student)
        end
      end
    end
    ctrl.write_fragment(last_ran_key,this_run)

    puts "hits: #{hit}   misses:#{miss}"

  end

end