220 lines
6.8 KiB
Python
220 lines
6.8 KiB
Python
#
|
||
# Copyright (c) 2024–2025, Daily
|
||
#
|
||
# SPDX-License-Identifier: BSD 2-Clause License
|
||
#
|
||
|
||
"""simple_dialin.py.
|
||
|
||
Daily PSTN Dial-in Bot.
|
||
"""
|
||
|
||
import argparse
|
||
import asyncio
|
||
import json
|
||
import os
|
||
import sys
|
||
|
||
from dotenv import load_dotenv
|
||
from loguru import logger
|
||
|
||
from pipecat.audio.vad.silero import SileroVADAnalyzer
|
||
from pipecat.pipeline.pipeline import Pipeline
|
||
from pipecat.pipeline.runner import PipelineRunner
|
||
from pipecat.pipeline.task import PipelineParams, PipelineTask
|
||
from pipecat.processors.aggregators.openai_llm_context import OpenAILLMContext
|
||
from pipecat.services.cartesia.tts import CartesiaTTSService
|
||
from pipecat.services.openai.llm import OpenAILLMService
|
||
from pipecat.transports.services.daily import DailyDialinSettings, DailyParams, DailyTransport
|
||
|
||
# Setup logging
|
||
load_dotenv()
|
||
logger.remove(0)
|
||
logger.add(sys.stderr, level="DEBUG")
|
||
|
||
|
||
daily_api_key = os.getenv("DAILY_API_KEY", "")
|
||
daily_api_url = os.getenv("DAILY_API_URL", "https://api.daily.co/v1")
|
||
|
||
|
||
async def run_bot(
|
||
room_url: str,
|
||
token: str,
|
||
body: dict,
|
||
) -> None:
|
||
"""Run the voice bot with the given parameters.
|
||
|
||
Args:
|
||
room_url: The Daily room URL
|
||
token: The Daily room token
|
||
body: Body passed to the bot from the webhook
|
||
|
||
"""
|
||
# ------------ CONFIGURATION AND SETUP ------------
|
||
logger.info(f"Starting bot with room: {room_url}")
|
||
logger.info(f"Token: {token}")
|
||
logger.info(f"Body: {body}")
|
||
# Parse the body to get the dial-in settings
|
||
body_data = json.loads(body)
|
||
|
||
# Check if the body contains dial-in settings
|
||
logger.debug(f"Body data: {body_data}")
|
||
|
||
if not all([body_data.get("callId"), body_data.get("callDomain")]):
|
||
logger.error("Call ID and Call Domain are required in the body.")
|
||
return None
|
||
|
||
call_id = body_data.get("callId")
|
||
call_domain = body_data.get("callDomain")
|
||
logger.debug(f"Call ID: {call_id}")
|
||
logger.debug(f"Call Domain: {call_domain}")
|
||
|
||
if not call_id or not call_domain:
|
||
logger.error("Call ID and Call Domain are required for dial-in.")
|
||
sys.exit(1)
|
||
|
||
daily_dialin_settings = DailyDialinSettings(call_id=call_id, call_domain=call_domain)
|
||
logger.debug(f"Dial-in settings: {daily_dialin_settings}")
|
||
transport_params = DailyParams(
|
||
api_url=daily_api_url,
|
||
api_key=daily_api_key,
|
||
dialin_settings=daily_dialin_settings,
|
||
audio_in_enabled=True,
|
||
audio_out_enabled=True,
|
||
video_out_enabled=False,
|
||
vad_analyzer=SileroVADAnalyzer(),
|
||
transcription_enabled=True,
|
||
)
|
||
logger.debug("setup transport params")
|
||
|
||
# Initialize transport with Daily
|
||
transport = DailyTransport(
|
||
room_url,
|
||
token,
|
||
"Simple Dial-in Bot",
|
||
transport_params,
|
||
)
|
||
logger.debug("setup transport")
|
||
|
||
# Initialize TTS
|
||
tts = CartesiaTTSService(
|
||
api_key=os.getenv("CARTESIA_API_KEY", ""),
|
||
voice_id="b7d50908-b17c-442d-ad8d-810c63997ed9", # Use Helpful Woman voice by default
|
||
)
|
||
logger.debug("setup tts")
|
||
|
||
# ------------ LLM AND CONTEXT SETUP ------------
|
||
|
||
# Set up the system instruction for the LLM
|
||
|
||
# Initialize LLM
|
||
llm = OpenAILLMService(api_key=os.getenv("OPENAI_API_KEY"))
|
||
logger.debug("setup llm")
|
||
|
||
# Initialize LLM context with system prompt
|
||
messages = [
|
||
{
|
||
"role": "system",
|
||
"content": (
|
||
"You are a friendly phone assistant. Your responses will be read aloud, "
|
||
"so keep them concise and conversational. Avoid special characters or "
|
||
"formatting. Begin by greeting the caller and asking how you can help them today."
|
||
),
|
||
},
|
||
]
|
||
|
||
# Setup the conversational context
|
||
context = OpenAILLMContext(messages)
|
||
logger.debug("setup context")
|
||
context_aggregator = llm.create_context_aggregator(context)
|
||
logger.debug("setup context aggregator")
|
||
|
||
# ------------ PIPELINE SETUP ------------
|
||
|
||
# Build the pipeline
|
||
pipeline = Pipeline(
|
||
[
|
||
transport.input(), # Transport user input
|
||
context_aggregator.user(), # User responses
|
||
llm, # LLM
|
||
tts, # TTS
|
||
transport.output(), # Transport bot output
|
||
context_aggregator.assistant(), # Assistant spoken responses
|
||
]
|
||
)
|
||
logger.debug("setup pipeline")
|
||
|
||
# Create pipeline task
|
||
task = PipelineTask(
|
||
pipeline,
|
||
params=PipelineParams(
|
||
enable_metrics=True,
|
||
enable_usage_metrics=True,
|
||
),
|
||
)
|
||
logger.debug("setup task")
|
||
|
||
# ------------ EVENT HANDLERS ------------
|
||
|
||
@transport.event_handler("on_first_participant_joined")
|
||
async def on_first_participant_joined(transport, participant):
|
||
logger.debug(f"First participant joined: {participant['id']}")
|
||
await transport.capture_participant_transcription(participant["id"])
|
||
await task.queue_frames([context_aggregator.user().get_context_frame()])
|
||
|
||
@transport.event_handler("on_participant_left")
|
||
async def on_participant_left(transport, participant, reason):
|
||
logger.debug(f"Participant left: {participant}, reason: {reason}")
|
||
await task.cancel()
|
||
|
||
@transport.event_handler("on_dialin_ready")
|
||
async def on_dialin_ready(transport, cdata):
|
||
logger.debug(f"Dial-in ready: {cdata}")
|
||
|
||
@transport.event_handler("on_dialin_connected")
|
||
async def on_dialin_connected(transport, data):
|
||
logger.debug(f"Dial-in connected: {data}")
|
||
|
||
@transport.event_handler("on_dialin_stopped")
|
||
async def on_dialin_stopped(transport, data):
|
||
logger.debug(f"Dial-in stopped: {data}")
|
||
|
||
@transport.event_handler("on_dialin_error")
|
||
async def on_dialin_error(transport, data):
|
||
logger.error(f"Dial-in error: {data}")
|
||
# If there is an error, the bot should leave the call
|
||
# This may be also handled in on_participant_left with
|
||
# await task.cancel()
|
||
|
||
@transport.event_handler("on_dialin_warning")
|
||
async def on_dialin_warning(transport, data):
|
||
logger.warning(f"Dial-in warning: {data}")
|
||
|
||
# Run the pipeline
|
||
runner = PipelineRunner()
|
||
await runner.run(task)
|
||
|
||
|
||
async def main():
|
||
"""Parse command line arguments and run the bot."""
|
||
parser = argparse.ArgumentParser(description="Simple Dial-in Bot")
|
||
parser.add_argument("-u", "--url", type=str, help="Daily room URL")
|
||
parser.add_argument("-t", "--token", type=str, help="Daily room token")
|
||
parser.add_argument("-b", "--body", type=str, help="JSON configuration string")
|
||
|
||
args = parser.parse_args()
|
||
|
||
logger.debug(f"url: {args.url}")
|
||
logger.debug(f"token: {args.token}")
|
||
logger.debug(f"body: {args.body}")
|
||
if not all([args.url, args.token, args.body]):
|
||
logger.error("All arguments (-u, -t, -b) are required")
|
||
parser.print_help()
|
||
sys.exit(1)
|
||
|
||
await run_bot(args.url, args.token, args.body)
|
||
|
||
|
||
if __name__ == "__main__":
|
||
asyncio.run(main())
|