// 获取积分余额
module.exports = {
  main: async (event) => {
    let { data = {}, userInfo, util } = event;
    let { db, _ } = util;
	//默认积分500
	let amount = 500;

    const res = await db.collection('jjx-user-points').doc(userInfo.uid).get();

    if (res.data.length === 0) {
      // 新用户，自动赠送 500 积分
      await db.collection('jjx-user-points').add({
        _id: userInfo.uid,
        balance: amount,
        total_earned: amount,
        total_spent: 0,
        gift: amount,
        update_time: new Date()
      });

      await db.collection('jjx-points-log').add({
        user_id: userInfo.uid,
        type: 'earn',
        amount: amount,
        balance_after: amount,
        reason: '新用户注册赠送',
        biz_type: 'gift',
        _add_time: new Date()
      });

      return { code: 0, msg: 'ok', data: { balance: amount, total_earned: amount, total_spent: 0, gift: amount } };
    }

    return { code: 0, msg: 'ok', data: res.data[0] };
  }
};