v0.0.4

cloudfunctions/login/index.js

@@ -0,0 +1,59 @@
+const cloud = require('wx-server-sdk')
+
+cloud.init({ env: cloud.DYNAMIC_CURRENT_ENV })
+const db = cloud.database()
+
+// Generate a unique handle from openid
+function makeHandle(openid) {
+  const suffix = openid.slice(-6).toLowerCase()
+  return `@user_${suffix}`
+}
+
+// Default avatar pool to randomise new user avatars
+const AVATAR_KEYS = [
+  'gradient-avatar-1', 'gradient-avatar-2', 'gradient-avatar-3',
+  'gradient-avatar-4', 'gradient-avatar-5', 'gradient-avatar-6'
+]
+
+exports.main = async event => {
+  const { OPENID } = cloud.getWXContext()
+  if (!OPENID) throw new Error('no openid in wx context')
+
+  const now = Date.now()
+  const existed = await db.collection('users').where({ openid: OPENID }).limit(1).get()
+
+  if (existed.data.length) {
+    const user = existed.data[0]
+    await db.collection('users').doc(user._id).update({
+      data: { lastLoginAt: now }
+    })
+    return {
+      openid: OPENID,
+      user: { ...user, lastLoginAt: now },
+      isNew: false
+    }
+  }
+
+  // New user — create with sensible defaults
+  const avatarKey = AVATAR_KEYS[Math.floor(Math.random() * AVATAR_KEYS.length)]
+  const user = {
+    openid: OPENID,
+    nickname: event.userInfo?.nickname || '宠物达人',
+    handle: makeHandle(OPENID),
+    avatarKey,
+    avatarUrl: '',
+    profileCompleted: false,
+    location: '',
+    yearsWithPets: 0,
+    level: 1,
+    bio: '',
+    verified: false,
+    stats: { posts: 0, following: 0, followers: 0, favorites: 0 },
+    preferences: { notifications: true, nearbyVisible: true },
+    createdAt: now,
+    lastLoginAt: now
+  }
+
+  const result = await db.collection('users').add({ data: user })
+  return { openid: OPENID, user: { _id: result._id, ...user }, isNew: true }
+}