defmodule Mix.Tasks.Spec.Autosync do
  use Mix.Task
  @shortdoc "Convenience wrapper around spec.sync with SPEC_HANDOFF_DIR"
  @moduledoc """
  Usage:
    mix spec.autosync --id <req>

  Resolves peer as SPEC_HANDOFF_DIR/<id>
  """

  @impl true
  def run(argv) do
    {opts, _, _} = OptionParser.parse(argv, switches: [id: :string])
    id = Keyword.get(opts, :id) || Mix.raise("Missing --id")

    base =
      System.get_env("SPEC_HANDOFF_DIR") ||
        Mix.raise("Set SPEC_HANDOFF_DIR or pass --peer to spec.sync")

    peer = Path.join(base, id)
    Mix.Task.run("spec.sync", ["--id", id, "--peer", peer])
  end
end