pull nowplaying from lastfm, post to masto

nowplaying.py

@@ -1,6 +1,35 @@
-from ananas import PineappleBot, interval
+from pylast import LastFMNetwork
+from ananas import PineappleBot, ConfigurationError, interval
 
 class NowplayingBot(PineappleBot):
-    @interval(60)
+    def init(self):
+        self.last_posted_track = None
+
+    def start(self):
+        for k in ['lastfm_api_key', 'lastfm_api_secret', 'lastfm_username', 'lastfm_password_hash']:
+            if k not in self.config:
+                raise ConfigurationError(f"NowplayingBot requires a '{k}'")
+
+        self.lastfm = LastFMNetwork(api_key=self.config.lastfm_api_key, api_secret=self.config.lastfm_api_secret,
+                                    username=self.config.lastfm_username,
+                                    password_hash=self.config.lastfm_password_hash)
+
+        # kick off the post task instantly (for dev, TODO: remove)
+        self.post_np()
+
+    @interval(10)
     def post_np(self):
-        pass
+        # grab the track from the last.fm api
+        currently_playing = self.lastfm.get_user(self.config.lastfm_username).get_now_playing()
+
+        # don't repost if we've already posted about this track
+        if currently_playing.__hash__() == self.last_posted_track:
+            return
+        else:
+            self.last_posted_track = currently_playing.__hash__()
+
+        post = '''\
+#np #nowplaying {artist} - {track}'''.format(artist=currently_playing.get_artist().get_name(properly_capitalized=True),
+                                              track=currently_playing.get_title())
+
+        self.mastodon.toot(post)