from fastapi import FastAPI
from fastapi.middleware.cors import CORSMiddleware
from app.routes import chat
from app.database import engine, Base
from app.qdrant_client import init_qdrant_collection

app = FastAPI(title="RAG Chatbot API")

# CORS Configuration - Allow frontend to connect
app.add_middleware(
    CORSMiddleware,
    allow_origins=["*"],
    allow_credentials=True,
    allow_methods=["*"],
    allow_headers=["*"],
)

# Include routers
app.include_router(chat.router)

@app.on_event("startup")
async def startup_event():
    # Create database tables
    try:
        Base.metadata.create_all(bind=engine)
        print("✅ Database tables created successfully")
    except Exception as e:
        print(f"⚠️ Warning: Database initialization failed: {e}")
    
    # Initialize Qdrant collection
    try:
        init_qdrant_collection()
    except Exception as e:
        print(f"⚠️ Warning: Qdrant initialization failed: {e}")
        print("   The API will still work but RAG features may be limited")

@app.get("/")
async def root():
    return {"message": "RAG Chatbot API"}

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