Class: Ektoplayer::Trackloader

Inherits:
Object
  • Object
show all
Defined in:
lib/ektoplayer/trackloader.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(database) ⇒ Trackloader

Returns a new instance of Trackloader.



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# File 'lib/ektoplayer/trackloader.rb', line 18

def initialize(database)
   @downloads = []
   @database = database
end

Instance Attribute Details

#downloads ⇒ Object (readonly)

Returns the value of attribute downloads.



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# File 'lib/ektoplayer/trackloader.rb', line 16

def downloads
  @downloads
end

Instance Method Details

#download_album(url) ⇒ Object 



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# File 'lib/ektoplayer/trackloader.rb', line 36

def download_album(url)
   track_info = get_track_infos(url)
   return if File.exists? track_info['album_path']

   archive_file = File.join(Config[:download_dir], track_info['archive_filename'])
   return if File.exists? archive_file

   archive_url = Application.archive_url(track_info['archive_url'])
   Application.log(self, 'starting download:', archive_url)
   dl = DownloadThread.new(archive_url, archive_file)

   if Config[:auto_extract_to_archive_dir]
      dl.events.on(:completed) do 
         begin
            extract_dir = track_info['album_path']
            FileUtils::mkdir_p(extract_dir)
            Common::extract_zip(archive_file, extract_dir)
            FileUtils::rm(archive_file) if Config[:delete_after_extraction]
         rescue
            Application.log(self, "extraction of '#{archive_file}' to '#{extract_dir}' failed:", $!)
         end
      end
   end

   dl.events.on(:failed) do |reason|
      Application.log(self, dl.filename, dl.url, reason)
      FileUtils::rm(dl.filename) rescue nil
   end

   @downloads << dl.start!
rescue
   Application.log(self, $!)
end

#get_track_file(url, reload: false, http_okay: false) ⇒ Object 



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# File 'lib/ektoplayer/trackloader.rb', line 70

def get_track_file(url, reload: false, http_okay: false)
   begin
      track_info = get_track_infos(url)
      album_files = Dir.glob(File.join(track_info['album_path'], '*.mp3'))
      track_file = album_files.sort[track_info['number']]
      return track_file if track_file
   rescue
      Application.log(self, 'could not load track from archive_dir:', $!)
   end

   real_url   = Application.track_url(url)
   url_obj    = URI.parse(real_url)
   basename   = File.basename(url_obj.path)
   cache_file = File.join(Config[:cache_dir], basename)
   temp_file  = File.join(Config[:temp_dir], '~ekto-' + basename)

   (File.delete(cache_file) rescue nil) if reload
   (File.delete(temp_file)  rescue nil) if reload

   return cache_file if File.file?(cache_file)
   return temp_file  if File.file?(temp_file)
   return real_url   if http_okay

   Application.log(self, 'starting download:', real_url)
   dl = DownloadThread.new(real_url, temp_file)

   if Config[:use_cache]
      dl.events.on(:completed) do 
         FileUtils::mv(temp_file, cache_file) rescue (
            Application.log(self, 'mv failed', temp_file, cache_file, $!)
         )
      end
   end

   dl.events.on(:failed) do |reason|
      Application.log(self, dl.filename, dl.url, reason)
      FileUtils::rm(dl.filename) rescue nil
   end

   @downloads << dl.start!

   return temp_file
rescue
   Application.log(self, $!)
end

#get_track_infos(url) ⇒ Object 



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# File 'lib/ektoplayer/trackloader.rb', line 23

def get_track_infos(url)
   r = @database.select(filters: [{tag: :url, operator: :==, value: url}])[0]

   r.update(
      @database.get_archives(url).select {|_|_['archive_type'] == 'MP3'}[0]
   )

   r['archive_filename'] = URI.unescape(r['archive_url'])
   r['archive_basename'] = File.basename(r['archive_filename'], '.zip')
   r['album_path'] = File.join(Config[:archive_dir], r['archive_basename'])
   r
end