Fix Kodi specific services registry and add descriptions (#7551)

* Fix Kodi specific services, add descriptions, add more handled exceptions

 - Fixes issue #7528
 - Add descriptions for Kodi specific services in services.yaml.
 - Error handling in Kodi API errors.
 - Make compatible the existent specific service `media_player.kodi_set_shuffle` with the general `media_player.shuffle_set` service (both use the same method but with different named parameter, I think the Kodi specific service should be eliminated, since it is not)

* fix line too long

* removed new services (for another PR); removed `kodi_set_shuffle` service

* requested changes

 - Removed `kodi_set_shuffle` service.
 - Optional `media_name` and `artist_name` parameters. `media_name` defaults to 'ALL'.
 - Guard clause to check if the services are already registered.

homeassistant/components/media_player/kodi.py

@@ -9,16 +9,18 @@ from functools import wraps
 import logging
 import urllib
 import re
+import os
 
 import aiohttp
 import voluptuous as vol
 
+from homeassistant.config import load_yaml_config_file
 from homeassistant.components.media_player import (
     SUPPORT_NEXT_TRACK, SUPPORT_PAUSE, SUPPORT_PREVIOUS_TRACK, SUPPORT_SEEK,
     SUPPORT_PLAY_MEDIA, SUPPORT_VOLUME_MUTE, SUPPORT_VOLUME_SET, SUPPORT_STOP,
-    SUPPORT_TURN_OFF, SUPPORT_PLAY, SUPPORT_VOLUME_STEP, MediaPlayerDevice,
+    SUPPORT_TURN_OFF, SUPPORT_PLAY, SUPPORT_VOLUME_STEP, SUPPORT_SHUFFLE_SET,
-    PLATFORM_SCHEMA, MEDIA_TYPE_MUSIC, MEDIA_TYPE_TVSHOW, MEDIA_TYPE_VIDEO,
+    MediaPlayerDevice, PLATFORM_SCHEMA, MEDIA_TYPE_MUSIC, MEDIA_TYPE_TVSHOW,
-    MEDIA_TYPE_PLAYLIST, MEDIA_PLAYER_SCHEMA, DOMAIN)
+    MEDIA_TYPE_VIDEO, MEDIA_TYPE_PLAYLIST, MEDIA_PLAYER_SCHEMA, DOMAIN)
 from homeassistant.const import (
     STATE_IDLE, STATE_OFF, STATE_PAUSED, STATE_PLAYING, CONF_HOST, CONF_NAME,
     CONF_PORT, CONF_SSL, CONF_PROXY_SSL, CONF_USERNAME, CONF_PASSWORD,
@@ -61,8 +63,9 @@ MEDIA_TYPES = {
 }
 
 SUPPORT_KODI = SUPPORT_PAUSE | SUPPORT_VOLUME_SET | SUPPORT_VOLUME_MUTE | \
-    SUPPORT_PREVIOUS_TRACK | SUPPORT_NEXT_TRACK | SUPPORT_SEEK | \
+               SUPPORT_PREVIOUS_TRACK | SUPPORT_NEXT_TRACK | SUPPORT_SEEK | \
-    SUPPORT_PLAY_MEDIA | SUPPORT_STOP | SUPPORT_PLAY | SUPPORT_VOLUME_STEP
+               SUPPORT_PLAY_MEDIA | SUPPORT_STOP | SUPPORT_SHUFFLE_SET | \
+               SUPPORT_PLAY | SUPPORT_VOLUME_STEP
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_HOST): cv.string,
@@ -78,17 +81,14 @@ PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
 })
 
 SERVICE_ADD_MEDIA = 'kodi_add_to_playlist'
-SERVICE_SET_SHUFFLE = 'kodi_set_shuffle'
+
+DATA_KODI = 'kodi'
 
 ATTR_MEDIA_TYPE = 'media_type'
 ATTR_MEDIA_NAME = 'media_name'
 ATTR_MEDIA_ARTIST_NAME = 'artist_name'
 ATTR_MEDIA_ID = 'media_id'
 
-MEDIA_PLAYER_SET_SHUFFLE_SCHEMA = MEDIA_PLAYER_SCHEMA.extend({
-    vol.Required('shuffle_on'): cv.boolean,
-})
-
 MEDIA_PLAYER_ADD_MEDIA_SCHEMA = MEDIA_PLAYER_SCHEMA.extend({
     vol.Required(ATTR_MEDIA_TYPE): cv.string,
     vol.Optional(ATTR_MEDIA_ID): cv.string,
@@ -100,15 +100,14 @@ SERVICE_TO_METHOD = {
     SERVICE_ADD_MEDIA: {
         'method': 'async_add_media_to_playlist',
         'schema': MEDIA_PLAYER_ADD_MEDIA_SCHEMA},
-    SERVICE_SET_SHUFFLE: {
-        'method': 'async_set_shuffle',
-        'schema': MEDIA_PLAYER_SET_SHUFFLE_SCHEMA},
 }
 
 
 @asyncio.coroutine
 def async_setup_platform(hass, config, async_add_devices, discovery_info=None):
     """Set up the Kodi platform."""
+    if DATA_KODI not in hass.data:
+        hass.data[DATA_KODI] = []
     host = config.get(CONF_HOST)
     port = config.get(CONF_PORT)
     tcp_port = config.get(CONF_TCP_PORT)
@@ -130,6 +129,7 @@ def async_setup_platform(hass, config, async_add_devices, discovery_info=None):
         password=config.get(CONF_PASSWORD),
         turn_off_action=config.get(CONF_TURN_OFF_ACTION), websocket=websocket)
 
+    hass.data[DATA_KODI].append(entity)
     async_add_devices([entity], update_before_add=True)
 
     @asyncio.coroutine
@@ -141,23 +141,37 @@ def async_setup_platform(hass, config, async_add_devices, discovery_info=None):
 
         params = {key: value for key, value in service.data.items()
                   if key != 'entity_id'}
-
+        entity_ids = service.data.get('entity_id')
-        yield from getattr(entity, method['method'])(**params)
+        if entity_ids:
+            target_players = [player for player in hass.data[DATA_KODI]
+                              if player.entity_id in entity_ids]
+        else:
+            target_players = hass.data[DATA_KODI]
 
         update_tasks = []
-        if entity.should_poll:
+        for player in target_players:
-            update_coro = entity.async_update_ha_state(True)
+            yield from getattr(player, method['method'])(**params)
-            update_tasks.append(update_coro)
+
+        for player in target_players:
+            if player.should_poll:
+                update_coro = player.async_update_ha_state(True)
+                update_tasks.append(update_coro)
 
         if update_tasks:
             yield from asyncio.wait(update_tasks, loop=hass.loop)
 
+    if hass.services.has_service(DOMAIN, SERVICE_ADD_MEDIA):
+        return
+
+    descriptions = yield from hass.loop.run_in_executor(
+        None, load_yaml_config_file, os.path.join(
+            os.path.dirname(__file__), 'services.yaml'))
+
     for service in SERVICE_TO_METHOD:
-        schema = SERVICE_TO_METHOD[service].get(
+        schema = SERVICE_TO_METHOD[service]['schema']
-            'schema', MEDIA_PLAYER_SCHEMA)
         hass.services.async_register(
             DOMAIN, service, async_service_handler,
-            description=None, schema=schema)
+            description=descriptions.get(service), schema=schema)
 
 
 def cmd(func):
@@ -657,16 +671,16 @@ class KodiDevice(MediaPlayerDevice):
                 {"item": {"file": str(media_id)}})
 
     @asyncio.coroutine
-    def async_set_shuffle(self, shuffle_on):
+    def async_set_shuffle(self, shuffle):
         """Set shuffle mode, for the first player."""
         if len(self._players) < 1:
             raise RuntimeError("Error: No active player.")
         yield from self.server.Player.SetShuffle(
-            {"playerid": self._players[0]['playerid'], "shuffle": shuffle_on})
+            {"playerid": self._players[0]['playerid'], "shuffle": shuffle})
 
     @asyncio.coroutine
     def async_add_media_to_playlist(
-            self, media_type, media_id=None, media_name='', artist_name=''):
+            self, media_type, media_id=None, media_name='ALL', artist_name=''):
         """Add a media to default playlist (i.e. playlistid=0).
 
         First the media type must be selected, then
@@ -675,13 +689,14 @@ class KodiDevice(MediaPlayerDevice):
         All the albums of an artist can be added with
         media_name="ALL"
         """
+        import jsonrpc_base
+        params = {"playlistid": 0}
         if media_type == "SONG":
             if media_id is None:
                 media_id = yield from self.async_find_song(
                     media_name, artist_name)
-
+            if media_id:
-            yield from self.server.Playlist.Add(
+                params["item"] = {"songid": int(media_id)}
-                {"playlistid": 0, "item": {"songid": int(media_id)}})
 
         elif media_type == "ALBUM":
             if media_id is None:
@@ -691,12 +706,22 @@ class KodiDevice(MediaPlayerDevice):
 
                 media_id = yield from self.async_find_album(
                     media_name, artist_name)
+            if media_id:
+                params["item"] = {"albumid": int(media_id)}
 
-            yield from self.server.Playlist.Add(
-                {"playlistid": 0, "item": {"albumid": int(media_id)}})
         else:
             raise RuntimeError("Unrecognized media type.")
 
+        if media_id is not None:
+            try:
+                yield from self.server.Playlist.Add(params)
+            except jsonrpc_base.jsonrpc.ProtocolError as exc:
+                result = exc.args[2]['error']
+                _LOGGER.error('Run API method %s.Playlist.Add(%s) error: %s',
+                              self.entity_id, media_type, result)
+        else:
+            _LOGGER.warning('No media detected for Playlist.Add')
+
     @asyncio.coroutine
     def async_add_all_albums(self, artist_name):
         """Add all albums of an artist to default playlist (i.e. playlistid=0).
@@ -734,9 +759,13 @@ class KodiDevice(MediaPlayerDevice):
     def async_find_artist(self, artist_name):
         """Find artist by name."""
         artists = yield from self.async_get_artists()
-        out = self._find(
+        try:
-            artist_name, [a['artist'] for a in artists['artists']])
+            out = self._find(
-        return artists['artists'][out[0][0]]['artistid']
+                artist_name, [a['artist'] for a in artists['artists']])
+            return artists['artists'][out[0][0]]['artistid']
+        except KeyError:
+            _LOGGER.warning('No artists were found: %s', artist_name)
+            return None
 
     @asyncio.coroutine
     def async_get_songs(self, artist_id=None):
@@ -769,8 +798,14 @@ class KodiDevice(MediaPlayerDevice):
             artist_id = yield from self.async_find_artist(artist_name)
 
         albums = yield from self.async_get_albums(artist_id)
-        out = self._find(album_name, [a['label'] for a in albums['albums']])
+        try:
-        return albums['albums'][out[0][0]]['albumid']
+            out = self._find(
+                album_name, [a['label'] for a in albums['albums']])
+            return albums['albums'][out[0][0]]['albumid']
+        except KeyError:
+            _LOGGER.warning('No albums were found with artist: %s, album: %s',
+                            artist_name, album_name)
+            return None
 
     @staticmethod
     def _find(key_word, words):

homeassistant/components/media_player/services.yaml

@@ -269,3 +269,23 @@ soundtouch_remove_zone_slave:
     slaves:
       description: Name of slaves entities to remove from the existing zone
       example: 'media_player.soundtouch_bedroom'
+
+kodi_add_to_playlist:
+  description: Add music to the default playlist (i.e. playlistid=0).
+
+  fields:
+    entity_id:
+      description: Name(s) of the Kodi entities where to add the media.
+      example: 'media_player.living_room_kodi'
+    media_type:
+      description: Media type identifier. It must be one of SONG or ALBUM.
+      example: ALBUM
+    media_id:
+      description: Unique Id of the media entry to add (`songid` or albumid`). If not defined, `media_name` and `artist_name` are needed to search the Kodi music library.
+      example: 123456
+    media_name:
+      description: Optional media name for filtering media. Can be 'ALL' when `media_type` is 'ALBUM' and `artist_name` is specified, to add all songs from one artist.
+      example: 'Highway to Hell'
+    artist_name:
+      description: Optional artist name for filtering media.
+      example: 'AC/DC'