gistfile1.rb

module Translator
  extend self

  URL = "top secret"
  PARTS_OF_SPEECH = %w(noun verb adjective article pronoun conjunction preposition)

  def fetch(word)
    formatted (JSON (with_encoding_for (translated (URI.escape word))))
  end

  private

  delegate :get, to: RestClient

  def translated(word)
    puts "#{URL}#{word}"
    get URL + word
  end

  def with_encoding_for(raw_data)
    raw_data.encode 'utf-8', 'koi8-r'
  end

  # data = JSON((Translator.send :translated, 'dog').force_encoding('windows-1251').encode('utf-8'))

  def formatted(data)
    if phrase?(data)
      collect_phrase(data)
    else
      translation = find_parts_of_speech(data) << find_sentence(data)
      translation.map { |word| word.mb_chars.downcase.to_s }
        .uniq
        .delete_if { |word| word.empty? }.join(', ')
    end
  end

  def find_parts_of_speech(data, types = PARTS_OF_SPEECH)
    translation = []
    types.each do |type|
      found = dictionary(data).find do |hash|
        hash['pos'] == type
      end
      translation << (found || {}).fetch('terms', '')[0...5]
    end
    translation.flatten
  end

  def find_sentence(data)
    data.fetch('sentences').first['trans']
  end

  def dictionary(data)
    data.fetch 'dict', []
  end

  def collect_phrase(data)
    data.fetch('sentences', []).map{|hash| hash['trans']}.join
  end

  def phrase?(data)
    dictionary(data).empty?
  end
end