49 lines
1.3 KiB
JavaScript
49 lines
1.3 KiB
JavaScript
// 云函数 login — 登录 + 首次建用户，返回 hasDog 决定跳建档/首页
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// 契约见 docs/03-云函数设计.md §1
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const cloud = require('wx-server-sdk');
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cloud.init({ env: cloud.DYNAMIC_CURRENT_ENV });
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const db = cloud.database();
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exports.main = async (event, context) => {
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const { OPENID } = cloud.getWXContext(); // 可信用户标识
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const usersCol = db.collection('users');
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const dogsCol = db.collection('dogs');
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// 1. 查用户，不存在则建档
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let userInfo;
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const userRes = await usersCol.where({ _openid: OPENID }).limit(1).get();
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if (userRes.data.length === 0) {
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const now = Date.now();
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const doc = {
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_openid: OPENID,
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nickname: '铲屎官',
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avatar: '',
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walkCount: 0,
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joinedAt: now,
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createdAt: now,
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};
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const addRes = await usersCol.add({ data: doc });
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userInfo = { _id: addRes._id, ...doc };
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} else {
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userInfo = userRes.data[0];
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}
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// 2. 是否已有狗狗 → 决定前端跳建档(0b)还是首页(1)
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const countRes = await dogsCol.where({ _openid: OPENID }).count();
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const hasDog = countRes.total > 0;
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return {
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ok: true,
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data: {
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userInfo: {
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openid: OPENID,
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nickname: userInfo.nickname,
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avatar: userInfo.avatar,
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walkCount: userInfo.walkCount,
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joinedAt: userInfo.joinedAt,
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},
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hasDog,
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},
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};
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};
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