"""Plivo transport factory.""" from fastapi import WebSocket from pipecat.transports.websocket.fastapi import ( FastAPIWebsocketParams, FastAPIWebsocketTransport, ) from api.services.pipecat.audio_config import AudioConfig from api.services.pipecat.audio_mixer import build_audio_out_mixer from api.services.pipecat.transport_params import realtime_param_overrides from api.services.telephony.factory import load_credentials_for_transport from .serializers import PlivoFrameSerializer async def create_transport( websocket: WebSocket, workflow_run_id: int, audio_config: AudioConfig, organization_id: int, *, ambient_noise_config: dict | None = None, telephony_configuration_id: int | None = None, is_realtime: bool = False, stream_id: str, call_id: str, ): """Create a transport for Plivo connections.""" config = await load_credentials_for_transport( organization_id, telephony_configuration_id, expected_provider="plivo" ) auth_id = config.get("auth_id") auth_token = config.get("auth_token") if not auth_id or not auth_token: raise ValueError( f"Incomplete Plivo configuration for organization {organization_id}" ) serializer = PlivoFrameSerializer( stream_id=stream_id, call_id=call_id, auth_id=auth_id, auth_token=auth_token, params=PlivoFrameSerializer.InputParams( plivo_sample_rate=8000, sample_rate=audio_config.pipeline_sample_rate, ), ) mixer = await build_audio_out_mixer( audio_config.transport_out_sample_rate, ambient_noise_config ) return FastAPIWebsocketTransport( websocket=websocket, params=FastAPIWebsocketParams( audio_in_enabled=True, audio_out_enabled=True, audio_in_sample_rate=audio_config.transport_in_sample_rate, audio_out_sample_rate=audio_config.transport_out_sample_rate, audio_out_mixer=mixer, serializer=serializer, **realtime_param_overrides(is_realtime), ), )