gpt_chat_bot/app/main.py

86 lines
2.6 KiB
Python

import asyncio
import sys
from fastapi import FastAPI
from fastapi.responses import UJSONResponse
from loguru import logger
from app.core.bot import BotApplication, BotQueue
from app.routers import api_router
from settings.config import Settings, get_settings
logger.remove()
logger.add(
sink=sys.stdout,
colorize=True,
level='DEBUG',
format="<cyan>{time:DD.MM.YYYY HH:mm:ss}</cyan> | <level>{level}</level> | <magenta>{message}</magenta>",
)
class Application:
def __init__(self, settings: Settings, bot_app: BotApplication) -> None:
self.app = FastAPI(
title='Health check bot',
description='Bot which check all services are working',
version='0.0.3',
docs_url=f'{settings.WEBHOOK_PATH}/docs',
redoc_url=f'{settings.WEBHOOK_PATH}/redocs',
openapi_url=f'{settings.WEBHOOK_PATH}/api/openapi.json',
default_response_class=UJSONResponse,
)
self.app.state.settings = settings
self.app.state.queue = BotQueue(bot_app=bot_app.application)
self.bot_app = bot_app
self.settings = settings
self.app.include_router(api_router)
self.configure_hooks()
@property
def fastapi_app(self) -> FastAPI:
return self.app
def configure_hooks(self) -> None:
if self.bot_app.start_with_webhook:
self.app.add_event_handler("startup", self.bot_app.polling)
else:
self.app.add_event_handler("startup", self._on_start_up)
self.app.add_event_handler("shutdown", self._on_shutdown)
async def _on_start_up(self) -> None:
await self.bot_app.set_webhook()
loop = asyncio.get_event_loop()
loop.create_task(self.app.state.queue.get_updates_from_queue())
async def _on_shutdown(self) -> None:
await asyncio.gather(self.bot_app.delete_webhook(), self.bot_app.shutdown())
def create_app(settings: Settings | None = None) -> FastAPI:
settings = settings or get_settings()
bot_app = BotApplication(settings=settings, start_with_webhook=settings.START_WITH_WEBHOOK)
return Application(settings=settings, bot_app=bot_app).fastapi_app
def main() -> None:
import uvicorn
app = create_app()
"""Entrypoint of the application."""
uvicorn.run(
"app.main:create_app",
workers=app.state.settings.WORKERS_COUNT,
host=app.state.settings.APP_HOST,
port=app.state.settings.APP_PORT,
# reload=app.state.settings.RELOAD, # noqa: E800 remove reload for debug
factory=True,
)
if __name__ == '__main__':
main()