initial commit, can toggle play-pause in mpc

mpd_controller/mpc.py

@@ -0,0 +1,46 @@
+#!/usr/bin/env python3
+# https://python-mpd2.readthedocs.io/en/latest
+
+import sys
+from mpd import MPDClient
+from time import sleep
+
+
+def fade(way, current_vol, client):
+    """ gracefull fading """
+    if way == 'out':
+        steps = int(current_vol / 2)
+        amount = -2
+    elif way == 'in':
+        steps = 50
+        amount = +2
+    for i in range(steps):
+        client.volume(amount)
+        sleep(0.03)
+
+
+def mpc_toggle():
+    """ toggles play status """
+    client = MPDClient()
+    client.connect("localhost", 6600)
+    client_status = client.status()
+    # switch
+    current_vol = int(client_status['volume'])
+    if client_status['state'] == 'play':
+        fade('out', current_vol, client)
+        client.pause()
+    elif client_status['state'] == 'pause':
+        client.setvol(0)
+        client.play()
+        fade('in', current_vol, client)
+
+
+def main():
+    """ main parser for args """
+    mpc_command = sys.argv[1]
+    if mpc_command == 'toggle':
+        mpc_toggle()
+
+
+if __name__ == '__main__':
+    main()