defmodule Mix.Tasks.Eise.Down do
  @moduledoc """
  Handles all uninstallations
  """

  use Mix.Task

  alias Eisegesis.Output
  import Eisegesis.Executor

  @passengers ["dotfiles", "repos", "yarn", "homebrew", "asdf", "shell"]

  def run(args \\ []) do
    start_section("GOODBYE FROM EISEGESIS!")

    args
    |> parse_args()
    |> get_path_for()
    |> Toml.decode_file!()
    |> Task.async_stream(&each_module/1)
    |> Enum.into([])
  end

  defp parse_args(args) do
    {[{_, dir}], _} =
      OptionParser.parse!(args, strict: [setup_path: :string], aliases: [sp: :setup_path])

    dir
  end

  defp each_module({module, opts}) when module in @passengers do
    module =
      ["elixir", "eisegesis", "passenger", module]
      |> Enum.map(&String.capitalize/1)
      |> Enum.join(".")
      |> String.to_atom()

    apply(module, :down, [opts])
  end

  defp each_module(_),
    do: Output.error("There's a error on your `setup.toml` file", "unable to parse `setup.toml`")
end