48 lines
1.3 KiB
JavaScript
48 lines
1.3 KiB
JavaScript
//扣积分（合同审查用）
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module.exports = {
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main: async (event) => {
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let { data = {}, userInfo, util } = event;
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let { db, _ } = util;
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const { amount, reason, biz_type, biz_id } = data;
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if (!amount || amount <= 0) {
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return { code: -1, msg: '扣减数量无效' };
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}
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// 查余额
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const userRes = await db.collection('jjx-user-points').doc(userInfo.uid).get();
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if (!userRes.data.length) {
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return { code: -1, msg: '积分账户不存在，请先获取积分' };
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}
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const currentBalance = userRes.data[0].balance;
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if (currentBalance < amount) {
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return { code: -1, msg: '积分不足', data: { balance: currentBalance, needed: amount } };
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}
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const newBalance = currentBalance - amount;
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// 扣减余额
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await db.collection('jjx-user-points').doc(userInfo.uid).update({
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balance: newBalance,
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total_spent: _.inc(amount),
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update_time: new Date()
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});
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// 记录流水
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await db.collection('jjx-points-log').add({
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user_id: userInfo.uid,
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type: 'spend',
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amount: -amount,
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balance_after: newBalance,
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reason: reason || '积分消耗',
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biz_type: biz_type || 'other',
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biz_id: biz_id || '',
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_add_time: new Date()
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});
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return { code: 0, msg: 'ok', data: { balance: newBalance } };
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}
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};
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