Merge pull request #16 from Jenkyrados/master

queue entire albums; fixes #7, thanks @Jenkyrados 

This also appears to work for YouTube mixes, which, oh my gosh, that can get kind of crazy. So maybe it would be good to enhance this support later to start playing as each file comes down, rather than waiting for the entire thing. But I'm happy with this as a start.

fediplay/queue.py

@@ -21,10 +21,10 @@ class Queue(object):
     def add(self, url):
         '''Fetches the url and adds the resulting audio to the play queue.'''
 
-        filename = Getter().get(url)
+        filenames = Getter().get(url)
 
         with self.lock:
-            self.queue.append(filename)
+            self.queue.extend(filenames)
             if not self.playing:
                 self._play(self.queue.pop(0), self._play_finished)
 
@@ -54,11 +54,11 @@ class Getter(object):
     # pylint: disable=too-few-public-methods
 
     def __init__(self):
-        self.filename = None
+        self.filenames = []
 
     def _progress_hook(self, progress):
-        if progress['status'] == 'finished':
-            self.filename = progress['filename']
+        if progress['status'] == 'downloading' and progress['filename'] not in self.filenames:
+            self.filenames.append(progress['filename'])
 
     def get(self, url):
         '''Fetches music from the given url.'''
@@ -71,7 +71,7 @@ class Getter(object):
         with YoutubeDL(options) as downloader:
             downloader.download([url])
 
-        return self.filename
+        return self.filenames
 
 def build_play_command(filename):
     '''Builds a play command for the given filename.'''