Files
OCR/backend/app/main.py
beabigegg da700721fa first
2025-11-12 22:53:17 +08:00

125 lines
2.9 KiB
Python

"""
Tool_OCR - FastAPI Application Entry Point
Main application setup with CORS, routes, and startup/shutdown events
"""
from fastapi import FastAPI
from fastapi.middleware.cors import CORSMiddleware
from contextlib import asynccontextmanager
import logging
import asyncio
from pathlib import Path
from app.core.config import settings
from app.services.background_tasks import task_manager
# Ensure log directory exists before configuring logging
Path(settings.log_file).parent.mkdir(parents=True, exist_ok=True)
# Configure logging
logging.basicConfig(
level=getattr(logging, settings.log_level),
format="%(asctime)s - %(name)s - %(levelname)s - %(message)s",
handlers=[
logging.FileHandler(settings.log_file),
logging.StreamHandler(),
],
)
logger = logging.getLogger(__name__)
@asynccontextmanager
async def lifespan(app: FastAPI):
"""Application lifespan events"""
# Startup
logger.info("Starting Tool_OCR application...")
# Ensure all directories exist
settings.ensure_directories()
logger.info("All directories created/verified")
# Start cleanup scheduler as background task
cleanup_task = asyncio.create_task(task_manager.start_cleanup_scheduler())
logger.info("Started cleanup scheduler for expired files")
# TODO: Initialize database connection pool
# TODO: Load PaddleOCR models
logger.info("Application startup complete")
yield
# Shutdown
logger.info("Shutting down Tool_OCR application...")
# Cancel cleanup task
cleanup_task.cancel()
try:
await cleanup_task
except asyncio.CancelledError:
logger.info("Cleanup scheduler stopped")
# TODO: Close database connections
# Create FastAPI application
app = FastAPI(
title="Tool_OCR",
description="OCR Batch Processing System with Structure Extraction",
version="0.1.0",
lifespan=lifespan,
)
# Configure CORS
app.add_middleware(
CORSMiddleware,
allow_origins=settings.cors_origins_list,
allow_credentials=True,
allow_methods=["*"],
allow_headers=["*"],
)
# Health check endpoint
@app.get("/health")
async def health_check():
"""Health check endpoint"""
return {
"status": "healthy",
"service": "Tool_OCR",
"version": "0.1.0",
}
# Root endpoint
@app.get("/")
async def root():
"""Root endpoint with API information"""
return {
"message": "Tool_OCR API",
"version": "0.1.0",
"docs_url": "/docs",
"health_check": "/health",
}
# Include API routers
from app.routers import auth, ocr, export, translation
app.include_router(auth.router)
app.include_router(ocr.router)
app.include_router(export.router)
app.include_router(translation.router) # RESERVED for Phase 5
if __name__ == "__main__":
import uvicorn
uvicorn.run(
"app.main:app",
host="0.0.0.0",
port=settings.backend_port,
reload=True,
log_level=settings.log_level.lower(),
)