# encoding: UTF-8
require 'fileutils'

class Boxafe::Encfs

  def initialize options = {}
    @options = options
  end

  def command
    # TODO: use shellwords for binary, test escaping
    [ encfs_config, @options[:encfs], Shellwords.escape(@options[:root]), Shellwords.escape(@options[:mount]), extpass, '--', volname ].compact.join ' '
  end

  private

  def volname
    %/-ovolname=#{Shellwords.escape @options[:volume]}/
  end

  def extpass
    if @options[:keychain]
      %*--extpass="security 2>&1 >/dev/null find-generic-password -gl '#{@options[:keychain]}' |grep password|cut -d \\\\\\" -f 2"*
    else
      nil
    end
  end

  def encfs_config
    @options[:encfs_config] ? %/ENCFS6_CONFIG=#{Shellwords.escape File.expand_path(@options[:encfs_config])}/ : nil
  end
end