defmodule Pleroma.Stats do import Ecto.Query alias Pleroma.{User, Repo} def start_link do agent = Agent.start_link(fn -> {[], %{}} end, name: __MODULE__) spawn(fn -> schedule_update() end) agent end def get_stats do Agent.get(__MODULE__, fn {_, stats} -> stats end) end def get_peers do Agent.get(__MODULE__, fn {peers, _} -> peers end) end def schedule_update do spawn(fn -> # 1 hour Process.sleep(1000 * 60 * 60 * 1) schedule_update() end) update_stats() end def update_stats do peers = from( u in Pleroma.User, select: fragment("distinct ?->'host'", u.info), where: u.local != ^true ) |> Repo.all() domain_count = Enum.count(peers) status_query = from(u in User.local_user_query(), select: fragment("sum((?->>'note_count')::int)", u.info)) status_count = Repo.one(status_query) user_count = Repo.aggregate(User.local_user_query(), :count, :id) Agent.update(__MODULE__, fn _ -> {peers, %{domain_count: domain_count, status_count: status_count, user_count: user_count}} end) end end