defmodule VerkWeb.PageView do
  use VerkWeb.Web, :view

  def stats(queues_stats) do
    Enum.map queues_stats, fn queue_stats ->
      Map.put(queue_stats, :enqueued_counter, Verk.Queue.count!(queue_stats.queue))
      |> Map.merge(Verk.Stats.queue_total(queue_stats.queue))
    end
  end

  def total_processed do
    Verk.Stats.total.processed
  end

  def total_failed do
    Verk.Stats.total.failed
  end

  def retries_count do
    Verk.RetrySet.count!
  end

  def dead_count do
    Verk.DeadSet.count!
  end

  def uptime do
    import Timex.Duration
    {time, _} = :erlang.statistics(:wall_clock)
    duration = from_milliseconds(time)
    days     = to_days(duration, truncate: true)
    hours    = to_hours(duration, truncate: true)
    minutes  = to_minutes(duration, truncate: true)

    "#{days} days, #{hours} hours, #{minutes} minutes"
  end

  def process_count, do: :erlang.system_info(:process_count)
  def process_limit, do: :erlang.system_info(:process_limit)
end