# collect MP3 files from stored blogs
task :default do
  blogs = Blog.all
  blogs.each do |blog|
    scrape = Hpricot(open(blog.url))
    scrape.search('//a[@href$=.mp3]').each do |link|

      @url = link.attributes['href'].scan(/http:\/\/(?:www\.)?([^\/]+?)(\/.*?\.mp3)/)

      host = @url[0]
      path = @url[1]
      request = "GET #{path} HTTP/1.0\r\n\r\n"
      socket = TCPSocket.open(host,80)
      socket.print(request)

      # find beginning of response body
      buffer = ""
      while !buffer.match("\r\n\r\n") do
        buffer += socket.read(1)
      end

      @id3_tags = socket.read(100) #read first 100 bytes of body

      Mp3Info.open(@id3_tags) do |mp3Info|
        @artist = mp3Info.tag.artist
        @title = mp3Info.tag.title

      end

      @mp3 = Mp3File.new(:url => link.attributes['href'], :file_name => link.attributes['href'].split('/').last, :band => @artist, :title => @title)
      @mp3.save
  	end
  end
end