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+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2022 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Mix.Tasks.Pleroma.RefreshCounterCache do
+ @shortdoc "Refreshes counter cache"
+
+ use Mix.Task
+
+ alias Pleroma.Activity
+ alias Pleroma.CounterCache
+ alias Pleroma.Repo
+
+ require Logger
+ import Ecto.Query
+
+ def run([]) do
+ Mix.Pleroma.start_pleroma()
+
+ instances =
+ Activity
+ |> distinct([a], true)
+ |> select([a], fragment("split_part(?, '/', 3)", a.actor))
+ |> Repo.all()
+
+ instances
+ |> Enum.with_index(1)
+ |> Enum.each(fn {instance, i} ->
+ counters = instance_counters(instance)
+ CounterCache.set(instance, counters)
+
+ Mix.Pleroma.shell_info(
+ "[#{i}/#{length(instances)}] Setting #{instance} counters: #{inspect(counters)}"
+ )
+ end)
+
+ Mix.Pleroma.shell_info("Done")
+ end
+
+ defp instance_counters(instance) do
+ counters = %{"public" => 0, "unlisted" => 0, "private" => 0, "direct" => 0}
+
+ Activity
+ |> where([a], fragment("(? ->> 'type'::text) = 'Create'", a.data))
+ |> where([a], fragment("split_part(?, '/', 3) = ?", a.actor, ^instance))
+ |> select(
+ [a],
+ {fragment(
+ "activity_visibility(?, ?, ?)",
+ a.actor,
+ a.recipients,
+ a.data
+ ), count(a.id)}
+ )
+ |> group_by(
+ [a],
+ fragment(
+ "activity_visibility(?, ?, ?)",
+ a.actor,
+ a.recipients,
+ a.data
+ )
+ )
+ |> Repo.all(timeout: :timer.minutes(30))
+ |> Enum.reduce(counters, fn {visibility, count}, acc ->
+ Map.put(acc, visibility, count)
+ end)
+ end
+end