forked from potsda.mn/mobilizon
84 lines
2.3 KiB
Elixir
84 lines
2.3 KiB
Elixir
defmodule Mobilizon.Service.Statistics do
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@moduledoc """
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A module that provides cached statistics
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"""
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alias Mobilizon.{Actors, Discussions, Events, Users}
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alias Mobilizon.Events.Categories
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alias Mobilizon.Federation.ActivityPub.Relay
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@spec get_cached_value(String.t()) :: any() | nil
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def get_cached_value(key) do
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case Cachex.fetch(:statistics, key, fn key ->
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case create_cache(key) do
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value when not is_nil(value) -> {:commit, value}
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err -> {:ignore, err}
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end
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end) do
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{status, value} when status in [:ok, :commit] -> value
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_err -> nil
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end
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end
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defp create_cache(:local_users) do
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Users.count_users()
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end
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defp create_cache(:local_events) do
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Events.count_local_events()
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end
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defp create_cache(:confirmed_participations_to_local_events) do
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Events.count_confirmed_participants_for_local_events()
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end
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defp create_cache(:local_comments) do
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Discussions.count_local_comments_under_events()
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end
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defp create_cache(:local_groups) do
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Actors.count_local_groups()
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end
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defp create_cache(:federation_events) do
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Events.count_events()
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end
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defp create_cache(:federation_comments) do
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Discussions.count_comments_under_events()
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end
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defp create_cache(:federation_groups) do
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Actors.count_groups()
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end
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defp create_cache(:instance_followers) do
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relay_actor = Relay.get_actor()
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Actors.count_followers_for_actor(relay_actor)
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end
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defp create_cache(:instance_followings) do
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relay_actor = Relay.get_actor()
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Actors.count_followings_for_actor(relay_actor)
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end
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@spec category_statistics :: list({String.t(), non_neg_integer()})
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def category_statistics do
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case Cachex.fetch(:statistics, :categories, fn ->
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allowed_categories =
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Categories.list()
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|> Enum.map(fn %{id: category} -> category |> Atom.to_string() |> String.upcase() end)
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statistics =
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Events.category_statistics()
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|> Enum.filter(fn {category, _} -> category in allowed_categories end)
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|> Enum.map(fn {category, number} -> %{key: category, number: number} end)
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{:commit, statistics}
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end) do
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{status, value} when status in [:ok, :commit] -> value
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_err -> nil
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end
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end
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end
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