from fastapi import FastAPI
from fastapi.middleware.cors import CORSMiddleware
from dotenv import load_dotenv
from contextlib import asynccontextmanager

from app.api.v1_endpoints import router
from app.db.qdrant_client import init_qdrant
from app.observability import setup_observability

load_dotenv()
setup_observability()


@asynccontextmanager
async def lifespan(app: FastAPI):
    # Startup
    init_qdrant()
    yield
    # Shutdown (optional cleanup here)


app = FastAPI(
    title="Agentic Research Engine",
    version="2.0",
    lifespan=lifespan,
)

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

app.include_router(router, prefix="/api/v1")

@app.get("/")
async def root():
    return {
        "status": "online",
        "message": "AEIS Executive Researcher API is running. Access endpoints via /api/v1",
        "docs": "/docs"
    }