# encoding: UTF-8

require 'highline/import'
require 'multi_json'

require_relative '../cli/terminal'
require_relative '../helpers'

module GoodData
  module Command
    class Auth
      class << self
        # Get path of .gooddata config
        def credentials_file
          "#{GoodData::Helpers.home_directory}/.gooddata"
        end

        # Ask for credentials
        def ask_for_credentials
          puts 'Enter your GoodData credentials.'
          user = GoodData::CLI.terminal.ask('Email')
          password = GoodData::CLI.terminal.ask('Password') { |q| q.echo = 'x' }
          auth_token = GoodData::CLI.terminal.ask('Authorization Token')

          { :username => user, :password => password, :auth_token => auth_token }
        end

        # Read credentials
        def read_credentials(credentials_file_path = credentials_file)
          if File.exist?(credentials_file_path)
            config = File.read(credentials_file_path)
            MultiJson.load(config, :symbolize_keys => true)
          else
            {}
          end
        end

        # Writes credentials
        def write_credentials(credentials, credentials_file_path = credentials_file)
          File.open(credentials_file_path, 'w', 0600) do |f|
            f.puts MultiJson.encode(credentials, :pretty => true)
          end
          credentials
        end

        # Ask for credentials and store them
        def store(credentials_file_path = credentials_file)
          credentials = ask_for_credentials

          ovewrite = if File.exist?(credentials_file_path)
                       GoodData::CLI.terminal.ask('Overwrite existing stored credentials (y/n)')
                     else
                       'y'
                     end

          if ovewrite == 'y'
            write_credentials(credentials, credentials_file_path)
          else
            puts 'Aborting...'
          end
        end

        # Delete stored credentials
        def unstore(credentials_file_path = credentials_file)
          FileUtils.rm_f(credentials_file_path)
        end
      end
    end
  end
end