import os
import secrets


class Config:
    ADMIN_USERNAME = os.getenv("ADMIN_USERNAME")
    ADMIN_PASSWORD = os.getenv("ADMIN_PASSWORD")
    
    SECRET_KEY = os.getenv("SECRET_KEY")
    if not SECRET_KEY:
        secret_file = os.path.join(os.path.dirname(__file__), ".secret_key")
        if os.path.exists(secret_file):
            try:
                with open(secret_file, "r") as f:
                    SECRET_KEY = f.read().strip()
            except Exception:
                SECRET_KEY = "fallback-secret-key-please-change"
        else:
            SECRET_KEY = secrets.token_hex(32)
            try:
                with open(secret_file, "w") as f:
                    f.write(SECRET_KEY)
            except Exception:
                pass