import os
from functools import lru_cache
from supabase import create_client, Client

@lru_cache(maxsize=1)
def get_supabase() -> Client | None:
    url = os.getenv("SUPABASE_URL")
    key = os.getenv("SUPABASE_KEY")
    if not url or not key:
        return None
    return create_client(url, key)