defmodule FastCi.Versionless do
  @moduledoc """
  Module associated with functions which should work with multiple version of elixir. This is a
  centralized location where `apply/3` is called for multiple versions of ExUnit and such.
  """

  @doc """
  Get the `time` variable. This is generally called moments before tests are ran.
  """
  def ensure_ex_unit_modules_loaded() do
    cond do
      Kernel.function_exported?(ExUnit.Server, :modules_loaded, 1) ->
        apply(ExUnit.Server, :modules_loaded, [false])

      Kernel.function_exported?(ExUnit.Server, :modules_loaded, 0) ->
        apply(ExUnit.Server, :modules_loaded, [])
    end
  end

  @doc """
  Enqueue the module into the ExUnit.Server for execution
  """
  def enqueue_module({module, type}) do
    cond do
      Kernel.function_exported?(ExUnit.Server, :add_module, 2) ->
        apply(ExUnit.Server, :add_module, [module, {type == "async", false}])

      Kernel.function_exported?(ExUnit.Server, :add_sync_module, 1) and type == "sync" ->
        apply(ExUnit.Server, :add_sync_module, [module])

      Kernel.function_exported?(ExUnit.Server, :add_async_module, 1) and type == "async" ->
        apply(ExUnit.Server, :add_async_module, [module])
    end
  end
end