import os

class Config:
    # Read values from environment variables or use defaults
    UPLOAD_FOLDER = os.environ.get("UPLOAD_FOLDER", "/tmp/uploads")
    HOST = os.environ.get("HOST", "127.0.0.1")
    PORT = int(os.environ.get("PORT", 5000))
    DEBUG = os.environ.get("DEBUG", "False").lower() in ("true", "1")

# Ensure upload directory exists
if not os.path.exists(Config.UPLOAD_FOLDER):
    os.makedirs(Config.UPLOAD_FOLDER)