defmodule GenServer.Proxy.Log do
  use File.Only.Logger
  use PersistConfig

  error :exit, {server, reason} do
    """
    \n'exit' caught...
    • Server:
      #{inspect(server, pretty: true)}
    • Reason:
      #{inspect(reason, pretty: true)}
    • App: #{Mix.Project.config()[:app]} / #{app()}
    • Library: #{@app} / #{Application.get_application(__MODULE__)}
    • Module: #{inspect(__MODULE__)}
    """
  end

  warn :remains_unregistered, {server, timeout, times, reason} do
    """
    \nServer remains unregistered...
    • Server:
      #{inspect(server, pretty: true)}
    • Waited: #{timeout} ms
    • Times: #{times}
    • Reason:
      #{inspect(reason, pretty: true)}
    • App: #{Mix.Project.config()[:app]} / #{app()}
    • Library: #{@app} / #{Application.get_application(__MODULE__)}
    • Module: #{inspect(__MODULE__)}
    """
  end

  info :still_unregistered, {server, timeout, times_left, reason} do
    """
    \nServer still unregistered...
    • Server:
      #{inspect(server, pretty: true)}
    • Waiting: #{timeout} ms
    • Times left: #{times_left}
    • Reason:
      #{inspect(reason, pretty: true)}
    • App: #{Mix.Project.config()[:app]} / #{app()}
    • Library: #{@app} / #{Application.get_application(__MODULE__)}
    • Module: #{inspect(__MODULE__)}
    """
  end

  info :now_registered, {server, timeout, times, reason, pid} do
    """
    \nServer now registered...
    • Server:
      #{inspect(server, pretty: true)}
    • Server PID: #{inspect(pid, pretty: true)}
    • Waited: #{timeout} ms
    • Times: #{times}
    • Reason:
      #{inspect(reason, pretty: true)}
    • App: #{Mix.Project.config()[:app]} / #{app()}
    • Library: #{@app} / #{Application.get_application(__MODULE__)}
    • Module: #{inspect(__MODULE__)}
    """
  end

  ## Private functions

  @spec app :: Application.app() | :undefined
  defp app do
    case :application.get_application() do
      {:ok, app} -> app
      :undefined -> :undefined
    end
  end
end