git.r.bdr.sh - rbdr/lyricli.rb/blob - lib/lyricli/lyrics_engine.rb

   1 module Lyricli
   2
   3   # This class gets the lyrics according to a given artist and song name.
   4   class LyricsEngine
   5
   6     include Util
   7
   8     # Starts a new instance of LyricsEngine
   9     #
  10     # @param [String] artist the artist
  11     # @param [String] song the song to look for
  12     def initialize(artist, song)
  13       @provider = URI("http://lyrics.wikia.com/api.php?artist=#{sanitize_param artist}&song=#{sanitize_param song}&fmt=realjson")
  14     end
  15
  16     # Asks Lyrics Wiki for the lyrics, also cleans up the output a little.
  17     #
  18     # @return [String] the lyrics
  19     def get_lyrics
  20       begin
  21         response = Net::HTTP.get(@provider)
  22         response = MultiJson.decode(response)
  23
  24         doc = Nokogiri::HTML(open(response['url']))
  25         node = doc.search(".lyricbox").first
  26       rescue
  27         raise Exceptions::LyricsNotFoundError
  28       end
  29
  30       node.search(".rtMatcher").each do |n|
  31         n.remove
  32       end
  33
  34       node.search("script").each do |n|
  35         n.remove
  36       end
  37
  38       node.search("br").each do |br|
  39         br.replace "\n"
  40       end
  41
  42       node.inner_text.gsub(/\s+$/, "")
  43     end
  44   end
  45 end