uploader-bot/app/__main__.py

159 lines
5.0 KiB
Python

"""
Main application entry point for my-uploader-bot.
Handles startup, shutdown, and application lifecycle management.
"""
import asyncio
import signal
import sys
from pathlib import Path
from app.api import create_app
from app.core.config import get_settings
from app.core.database import init_database, close_database
from app.core.logging import get_logger, setup_logging
from app.core.background.ton_service import cleanup_ton_service
# Setup logging first
setup_logging()
logger = get_logger(__name__)
settings = get_settings()
class ApplicationManager:
"""Manages application lifecycle and graceful shutdown."""
def __init__(self):
self.app = None
self.shutdown_event = asyncio.Event()
self.tasks = []
async def startup(self):
"""Initialize application and all services."""
try:
await logger.ainfo("Starting my-uploader-bot application", version="2.0.0")
# Initialize database connections
await logger.ainfo("Initializing database connections")
await init_database()
# Create Sanic application
await logger.ainfo("Creating Sanic application")
self.app = await create_app()
# Setup signal handlers for graceful shutdown
self._setup_signal_handlers()
await logger.ainfo(
"Application startup completed",
host=settings.HOST,
port=settings.PORT,
debug=settings.DEBUG,
workers=settings.WORKERS
)
except Exception as e:
await logger.aerror("Application startup failed", error=str(e))
await self.shutdown()
sys.exit(1)
async def run(self):
"""Run the application server."""
try:
if not self.app:
await self.startup()
# Run the Sanic server
await logger.ainfo("Starting HTTP server")
server_config = {
"host": settings.HOST,
"port": settings.PORT,
"debug": settings.DEBUG,
"access_log": settings.DEBUG,
"auto_reload": settings.AUTO_RELOAD,
"workers": settings.WORKERS if not settings.DEBUG else 1,
}
# Start server
await self.app.create_server(**server_config, return_asyncio_server=True)
# Wait for shutdown signal
await self.shutdown_event.wait()
except KeyboardInterrupt:
await logger.ainfo("Received keyboard interrupt, shutting down")
except Exception as e:
await logger.aerror("Server error", error=str(e))
finally:
await self.shutdown()
async def shutdown(self):
"""Gracefully shutdown the application."""
await logger.ainfo("Initiating graceful shutdown")
try:
# Cancel all background tasks
for task in self.tasks:
if not task.done():
task.cancel()
try:
await task
except asyncio.CancelledError:
pass
# Cleanup services
await logger.ainfo("Cleaning up services")
# Cleanup TON service
await cleanup_ton_service()
# Close database connections
await close_database()
await logger.ainfo("Graceful shutdown completed")
except Exception as e:
await logger.aerror("Error during shutdown", error=str(e))
def _setup_signal_handlers(self):
"""Setup signal handlers for graceful shutdown."""
def signal_handler(signum, frame):
signal_name = signal.Signals(signum).name
logger.info(f"Received {signal_name}, initiating shutdown")
self.shutdown_event.set()
# Register signal handlers
signal.signal(signal.SIGINT, signal_handler)
signal.signal(signal.SIGTERM, signal_handler)
# Unix-specific signals
if hasattr(signal, 'SIGHUP'):
signal.signal(signal.SIGHUP, signal_handler)
async def main():
"""Main application entry point."""
app_manager = ApplicationManager()
try:
await app_manager.run()
except Exception as e:
logger.error(f"Application failed: {e}")
sys.exit(1)
if __name__ == "__main__":
# Ensure we're running from the correct directory
app_root = Path(__file__).parent.parent
if app_root.exists():
import os
os.chdir(app_root)
# Run the application
try:
asyncio.run(main())
except KeyboardInterrupt:
print("\nApplication interrupted by user")
sys.exit(0)
except Exception as e:
print(f"Failed to start application: {e}")
sys.exit(1)