from fastapi import FastAPI
from fastapi.middleware.cors import CORSMiddleware
from contextlib import asynccontextmanager
import asyncio

from backend.core.database import connect_to_mongo, close_mongo_connection
from backend.core.config import settings
from backend.worker.scheduler import run_scheduler
from backend.worker.telegram_bot import run_bot, send_sys_log 

# Import all routers
from backend.api.auth_routes import router as auth_router
from backend.api.hf_routes import router as hf_router
from backend.api.cron_routes import router as cron_router
from backend.api.admin_routes import router as admin_router

@asynccontextmanager
async def lifespan(app: FastAPI):
    # Startup: Connect to DB, start background worker AND Telethon Bot
    await connect_to_mongo()
    asyncio.create_task(run_scheduler())
    asyncio.create_task(run_bot()) 
    yield
    # Shutdown
    await send_sys_log("🛑 **System Shutting Down / Restarting.**")
    await close_mongo_connection()

app = FastAPI(
    title=settings.PROJECT_NAME,
    description="SaaS PWA for managing Hugging Face Spaces and Cron Jobs",
    version="1.0.0",
    lifespan=lifespan
)

# Configure CORS
app.add_middleware(
    CORSMiddleware,
    allow_origins=["*"], 
    allow_credentials=True,
    allow_methods=["*"],
    allow_headers=["*"],
)

@app.get("/")
async def root():
    return {"message": "Welcome to HF Cron Manager Pro API"}

# Include all routers
app.include_router(auth_router)
app.include_router(hf_router)
app.include_router(cron_router)
app.include_router(admin_router)