import json
import os
import time

CONFIG_FILE = os.path.join(os.path.dirname(__file__), "config.json")

USERNAME = "your_username"  # 替换为你的学习通用户名
PASSWORD = "your_password"  # 替换为你的学习通密码
QR_LOGIN = False  # 设为 True 启用二维码登录（优先级高于账号密码）


def save_cookies(cookies_dict: dict):
    data = {
        "cookies": cookies_dict,
        "saved_at": int(time.time()),
    }
    with open(CONFIG_FILE, "w", encoding="utf-8") as f:
        json.dump(data, f, ensure_ascii=False, indent=2)


def load_cookies() -> dict | None:
    if not os.path.exists(CONFIG_FILE):
        return None
    try:
        with open(CONFIG_FILE, "r", encoding="utf-8") as f:
            data = json.load(f)
        return data.get("cookies")
    except (json.JSONDecodeError, IOError):
        return None


def clear_cookies():
    if os.path.exists(CONFIG_FILE):
        os.remove(CONFIG_FILE)