From 4fa7a080068ca30c6f15d7c9286eaf507930d04c Mon Sep 17 00:00:00 2001
From: Fabio Manganiello <blacklight86@gmail.com>
Date: Sat, 13 Jan 2018 02:52:06 +0100
Subject: [PATCH] Added mpd backend

---
 platypush/backend/music/__init__.py       |  0
 platypush/backend/music/mpd/__init__.py   | 61 +++++++++++++++++++++++
 platypush/message/event/music/__init__.py | 32 ++++++++++++
 platypush/plugins/music/mpd/__init__.py   |  4 ++
 4 files changed, 97 insertions(+)
 create mode 100644 platypush/backend/music/__init__.py
 create mode 100644 platypush/backend/music/mpd/__init__.py
 create mode 100644 platypush/message/event/music/__init__.py

diff --git a/platypush/backend/music/__init__.py b/platypush/backend/music/__init__.py
new file mode 100644
index 000000000..e69de29bb
diff --git a/platypush/backend/music/mpd/__init__.py b/platypush/backend/music/mpd/__init__.py
new file mode 100644
index 000000000..8b3b9632b
--- /dev/null
+++ b/platypush/backend/music/mpd/__init__.py
@@ -0,0 +1,61 @@
+import logging
+import re
+import time
+
+from platypush.backend import Backend
+from platypush.context import get_plugin
+from platypush.message.event.music import \
+    MusicPlayEvent, MusicPauseEvent, MusicStopEvent, NewPlayingTrackEvent
+
+
+class MusicMpdBackend(Backend):
+    def __init__(self, server='localhost', port=6600, poll_seconds=3, **kwargs):
+        super().__init__(**kwargs)
+
+        self.server = server
+        self.port = port
+        self.poll_seconds = poll_seconds
+
+
+    def send_message(self, msg):
+        pass
+
+
+    def run(self):
+        super().run()
+
+        plugin = get_plugin('music.mpd')
+        last_state = None
+        last_track = None
+
+        while not self.should_stop():
+            status = plugin.status().output
+            state = status['state'].lower()
+            track = plugin.currentsong().output
+
+            if state != last_state:
+                if state == 'stop':
+                    self.bus.post(MusicStopEvent(status=status, track=track))
+                elif state == 'pause':
+                    self.bus.post(MusicPauseEvent(status=status, track=track))
+                elif state == 'play':
+                    self.bus.post(MusicPlayEvent(status=status, track=track))
+
+            if 'title' in track and ('artist' not in track
+                                        or not track['artist']
+                                        or re.search('^tunein:', track_info['file'])):
+                m = re.match('^\s*(.+?)\s+-\s+(.*)\s*$', track['title'])
+                if m and m.group(1) and m.group(2):
+                    track['artist'] = m.group(1)
+                    track['title'] = m.group(2)
+
+            if state == 'play' and track != last_track:
+                self.bus.post(NewPlayingTrackEvent(status=status, track=track))
+
+            last_state = state
+            last_track = track
+            time.sleep(self.poll_seconds)
+
+
+# vim:sw=4:ts=4:et:
+
diff --git a/platypush/message/event/music/__init__.py b/platypush/message/event/music/__init__.py
new file mode 100644
index 000000000..0f95746fd
--- /dev/null
+++ b/platypush/message/event/music/__init__.py
@@ -0,0 +1,32 @@
+from platypush.message.event import Event
+
+
+class MusicEvent(Event):
+    """ Base class for music events """
+
+    def __init__(self, status, track, *args, **kwargs):
+        super().__init__(*args, status=status, track=track, **kwargs)
+
+
+class MusicPlayEvent(MusicEvent):
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+
+
+class MusicStopEvent(MusicEvent):
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+
+
+class MusicPauseEvent(MusicEvent):
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+
+
+class NewPlayingTrackEvent(MusicEvent):
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+
+
+# vim:sw=4:ts=4:et:
+
diff --git a/platypush/plugins/music/mpd/__init__.py b/platypush/plugins/music/mpd/__init__.py
index b0f4c8221..7298607a5 100644
--- a/platypush/plugins/music/mpd/__init__.py
+++ b/platypush/plugins/music/mpd/__init__.py
@@ -83,5 +83,9 @@ class MusicMpdPlugin(MusicPlugin):
     def status(self):
         return Response(output=self.client.status())
 
+    def currentsong(self):
+        return Response(output=self.client.currentsong())
+
+
 # vim:sw=4:ts=4:et: