require 'fileutils'
require 'yaml'

module App42
  module Command
    module UserToken

      # make sure configuration root directory exist?
      # create new dir unless file.exist?
      def ensure_config_dir
        FileUtils.mkdir_p(config_path) unless File.exist? config_path
      end

      # Load yaml config file
      # make sure file contain api and secret key
      def check_key_file?
        info = YAML.load_file(key_path) if File.exist? key_path
        true unless info.nil? || info['api_key'].nil? || info['secret_key'].nil?
      end

      # Load yaml config file
      # read api and secret key
      def get_keys
        keys = YAML.load_file(key_path) if File.exist? key_path
        return nil, nil if keys.nil? || keys.empty?  
        return keys['api_key'], keys['secret_key'] unless keys.empty? || keys.nil? 
      end

      # expand key file path
      # And open in write mode and configure api and secret key
      def local_app42_key  api_key, secret_key
        key_file = File.expand_path(App42::KEYS_FILE)

        File.open(key_file, "w") { |f|
          f.puts "api_key:"
          f.puts "  #{api_key}"
          f.puts "secret_key:"
          f.puts "  #{secret_key}"
        }
      end

      # Extract key path
      # and remove from configuration file
      def remove_key_file
        FileUtils.rm_f(key_path)
      end

      # Expand key path
      def key_path
        File.expand_path(App42::KEYS_FILE)
      end

      # Extract app42pass config dir path
      # and remove from configuration file
      def config_path
        File.expand_path(App42::CONFIG_DIR)
      end

      # collect key path from constants
      # mkdir key file
      def ensure_key_file
        FileUtils.mkdir_p(key_path) unless File.exist? key_path
      end

    end
  end
end