import sounddevice as sd
import importlib
from os_environment import isMacOS

class DeviceManager():

  @classmethod
  def _isOutput(self, device):
    return device["max_output_channels"] > 0

  @classmethod
  def _getDevices(self):
    # To update the list of devices
    # Sadly this doesn't work on MacOS.
    if not isMacOS():
      sd._terminate()
      sd._initialize()
    devices = sd.query_devices()
    return devices

  @classmethod
  def getOutputs(self):
    outputs = filter(self._isOutput, self._getDevices())

    return outputs

  # TODO: Maybe some hotplug event triggers support for the players?