import os
from contextlib import asynccontextmanager

from fastapi import FastAPI
from fastapi.middleware.cors import CORSMiddleware

from database import engine
from models import Base
from api.routes import router as api_router

@asynccontextmanager
async def lifespan(app: FastAPI):
    os.makedirs("data", exist_ok=True)
    async with engine.begin() as conn:
        await conn.run_sync(Base.metadata.create_all)
    yield
    await engine.dispose()

app = FastAPI(
    title="Log Analyzer Backend",
    description="CPU LLM powered firewall & proxy log analyzer.",
    version="1.0.0",
    lifespan=lifespan,
)

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

app.include_router(api_router)

@app.get("/health")
async def health():
    return {"status": "ok"}