module Cardio
  # Utilities that may need to be run even when mods are not loaded.
  module Utils
    def tr key, args={}
      kaller = args.delete(:caller) || caller
      args[:scope] ||= Card::Set.scope kaller
      ::I18n.t key, args
    end

    def seed_test_db
      system "env RAILS_ENV=test bundle exec rake db:fixtures:load"
    end

    # deletes tmp directory within files directory
    # It's here because it gets called as part of cache clearing, which sometimes gets
    # called in a context where card mods are not loaded.
    # Why does cache clearing need to do this??
    def delete_tmp_files! id=nil
      raise "no files directory" unless files_dir
      delete_tmp_files id
    rescue StandardError
      Rails.logger.info "failed to remove tmp files"
    end

    private

    def delete_tmp_files id=nil
      dir = [files_dir, "tmp", id.to_s].compact.join "/"
      FileUtils.rm_rf dir, secure: true
    end

    def files_dir
      @files_dir ||= Cardio.paths["files"].existent.first
    end
  end
end