defmodule Jacob do
  @moduledoc false

  @doc """
  Return Jacob's version.
  """
  def version do
    unquote(Mix.Project.config()[:version])
  end

  @doc """
  Return the current console name.
  Raise when not set.
  """
  def console_name do
    case Application.get_env(:jacob, :console_name, nil) do
      nil -> raise Jacob.Errors.RequiredConfigValueMissing, config_key: :console_name
      console_name -> console_name |> to_string()
    end
  end

  @doc """
  Return the generated escript name.
  Raise when not set.
  """
  def escript_name do
    case Application.get_env(:jacob, :escript_name, nil) do
      nil -> raise Jacob.Errors.RequiredConfigValueMissing, config_key: :escript_name
      escript_name -> escript_name |> to_string()
    end
  end

  @doc """
  Return a list of application that defines Jacob commands.
  """
  def command_sources do
    [unquote(Mix.Project.config()[:app])] ++ Application.get_env(:jacob, :command_sources, [])
  end
end