Only check if the gui is connected once (#96)

This commit changes the OCPQuery logic such that it only checks if the
gui is connected once, rather than on every skill response.

Furthermore if `playback_mode` is set to an option where the GUI is not
needed, then bypass the check entirely.

related to #92

ovos_plugin_common_play/ocp/search.py

@@ -54,6 +54,10 @@ def reset(self):
         self.searching = False
         self.search_start = 0
         self.query_timeouts = self.settings.get("min_timeout", 5)
+        if self.settings.get("playback_mode") in [PlaybackMode.FORCE_AUDIOSERVICE, PlaybackMode.AUDIO_ONLY]:
+            self.has_gui = False
+        else:
+            self.has_gui = is_gui_running() or is_gui_connected(self.bus)
 
     @property
     def settings(self) -> dict:
@@ -179,7 +183,6 @@ def handle_skill_response(self, message):
                         "enough!")
 
                 # populate search playlist
-                has_gui = is_gui_running() or is_gui_connected(self.bus)
                 results = message.data.get("results", [])
                 for idx, res in enumerate(results):
                     if self.media_type not in [MediaType.ADULT, MediaType.HENTAI]:
@@ -212,7 +215,7 @@ def handle_skill_response(self, message):
                         continue
 
                     # filter video results if GUI not connected
-                    if not has_gui:
+                    if not self.has_gui:
                         # force allowed stream types to be played audio only
                         if res.get("media_type", "") in self.cast2audio:
                             LOG.debug("unable to use GUI, "