Files
Pawer/cloudfunctions/userPosts/index.js
2026-06-18 15:38:28 +08:00

91 lines
2.8 KiB
JavaScript

const cloud = require('wx-server-sdk')
cloud.init({ env: cloud.DYNAMIC_CURRENT_ENV })
const db = cloud.database()
const _ = db.command
async function safeGet(collection, where, limit = 200) {
try {
return await db.collection(collection).where(where).limit(limit).get()
} catch (e) {
return { data: [] }
}
}
function formatTimeText(ts) {
const diff = Date.now() - ts
const mins = Math.floor(diff / 60000)
if (mins < 1) return '刚刚'
if (mins < 60) return `${mins} 分钟前`
const hours = Math.floor(mins / 60)
if (hours < 24) return `${hours} 小时前`
const days = Math.floor(hours / 24)
if (days === 1) return '昨天'
if (days < 7) return `${days} 天前`
const d = new Date(ts)
return `${d.getMonth() + 1}${d.getDate()}`
}
// List a user's own posts. Defaults to the caller; pass authorId to view
// another user (only public posts are returned for others).
exports.main = async event => {
const { OPENID } = cloud.getWXContext()
if (!OPENID) throw new Error('no openid in wx context')
let authorOpenid = OPENID
let viewingSelf = true
if (event.authorId) {
const u = await db.collection('users').doc(event.authorId).get().catch(() => null)
if (!u || !u.data) return { list: [] }
authorOpenid = u.data.openid
viewingSelf = authorOpenid === OPENID
}
const where = { authorOpenid }
if (!viewingSelf) where.visibility = 'public'
const res = await db.collection('posts')
.where(where)
.orderBy('createdAt', 'desc')
.limit(50)
.get()
if (!res.data.length) return { list: [] }
const postIds = res.data.map(p => p._id)
const [likedRes, favRes] = await Promise.all([
safeGet('postLikes', { openid: OPENID, postId: _.in(postIds) }),
safeGet('postFavorites', { openid: OPENID, postId: _.in(postIds) })
])
const likedSet = new Set(likedRes.data.map(l => l.postId))
const favSet = new Set(favRes.data.map(f => f.postId))
const list = res.data.map(post => ({
_id: post._id,
author: {
id: post.authorId || '',
name: post.authorSnapshot?.name || '用户',
avatarKey: post.authorSnapshot?.avatarKey || 'gradient-avatar-1'
},
pet: post.petSnapshot || { name: '', breed: '' },
body: post.content || '',
topics: post.topics || [],
media: Array.isArray(post.media)
? post.media.map(m => (typeof m === 'string' ? m : m && (m.url || m.fileId))).filter(Boolean)
: [],
mediaTone: post.mediaTone || 'pet-1',
sticker: post.sticker || undefined,
locationText: post.locationText || '',
timeText: formatTimeText(post.createdAt || Date.now()),
counts: {
likes: post.counts?.likes || 0,
comments: post.counts?.comments || 0,
favorites: post.counts?.favorites || 0
},
likedByMe: likedSet.has(post._id),
favoritedByMe: favSet.has(post._id)
}))
return { list }
}