python service http refactor start

audio-service/src/windows_audio.py

@@ -7,6 +7,12 @@ from pycaw.pycaw import AudioUtilities, IAudioEndpointVolume
 import json
 
 class WindowsAudioManager:
+    _instance = None
+
+    def __new__(cls, *args, **kwargs):
+        if cls._instance is None:
+            cls._instance = super().__new__(cls)
+        return cls._instance
     def __init__(self):
         """
         Initialize Windows audio device and volume management.
@@ -42,8 +48,27 @@ class WindowsAudioManager:
                 } 
                 for dev in self.devices if dev['max_output_channels'] > 0
             ]
-    
+    def get_default_device(self, kind='input'):
+        """
+        Get the default audio device.
+        
+        :param kind: 'input' or 'output'
+        :return: Default audio device information
+        """
+        if kind == 'input':
+            dev = self.devices[self.default_input]
+            return [
+                {
+                    'index': dev['index'], 
+                    'name': dev['name'], 
+                    'max_input_channels': dev['max_input_channels'],
+                    'default_samplerate': dev['default_samplerate']
+                } 
+            ]
+        
     def set_default_input_device(self, device_index):
+        if(device_index is None):
+            return self.get_current_input_device_sample_rate()
         """
         Set the default input audio device.