defmodule Parrhesia.TestSupport.Runtime do
  @moduledoc false

  alias Parrhesia.PostgresRepos

  def ensure_started! do
    if healthy?() do
      :ok
    else
      restart!()
    end
  end

  defp healthy? do
    Enum.all?(required_processes(), &is_pid(Process.whereis(&1)))
  end

  defp restart! do
    case Application.stop(:parrhesia) do
      :ok -> :ok
      {:error, {:not_started, :parrhesia}} -> :ok
      {:error, {:not_started, _app}} -> :ok
    end

    {:ok, _apps} = Application.ensure_all_started(:parrhesia)
    :ok
  end

  defp required_processes do
    [
      Parrhesia.Supervisor,
      Parrhesia.ConnectionStats,
      Parrhesia.Config,
      Parrhesia.Subscriptions.Supervisor,
      Parrhesia.API.Stream.Supervisor,
      Parrhesia.Web.Endpoint
    ] ++ PostgresRepos.started_repos()
  end
end