66 lines
2.2 KiB
JavaScript
66 lines
2.2 KiB
JavaScript
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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const _ = db.command
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const MEDIA_TONES = ['pet-1', 'pet-2', 'pet-3']
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const PET_TONES = { dog: 'gold', cat: 'purple', other: 'green' }
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exports.main = async event => {
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const { OPENID } = cloud.getWXContext()
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const now = Date.now()
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const content = String(event.content || '').trim()
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if (!content) throw new Error('content is required')
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// Get author info first (required for snapshot)
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const userRes = await db.collection('users').where({ openid: OPENID }).limit(1).get()
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if (!userRes.data.length) throw new Error('user not found')
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const user = userRes.data[0]
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// Get pet snapshot if petId provided
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let petSnapshot = null
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if (event.petId) {
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try {
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const petRes = await db.collection('pets').doc(event.petId).get()
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if (petRes.data) {
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const p = petRes.data
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petSnapshot = { name: p.name, breed: p.breed, tone: PET_TONES[p.species] || 'green' }
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}
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} catch (_) {}
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}
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// Derive mediaTone from media count so similar posts look varied
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const mediaCount = Array.isArray(event.media) ? event.media.length : 0
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const mediaTone = event.mediaTone || MEDIA_TONES[(mediaCount + now) % 3]
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const post = {
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authorOpenid: OPENID,
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authorId: user._id,
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authorSnapshot: { name: user.nickname, avatarKey: user.avatarKey, avatarUrl: user.avatarUrl || '' },
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petId: event.petId || '',
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petSnapshot,
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content: content.slice(0, 2000),
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topics: Array.isArray(event.topics) ? event.topics : [],
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media: Array.isArray(event.media) ? event.media : [],
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mediaTone,
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sticker: event.sticker || null,
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locationText: event.locationText || '',
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location: (typeof event.latitude === 'number' && typeof event.longitude === 'number')
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? { latitude: event.latitude, longitude: event.longitude }
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: null,
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visibility: event.visibility || 'public',
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counts: { likes: 0, comments: 0, shares: 0 },
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createdAt: now,
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updatedAt: now
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}
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const result = await db.collection('posts').add({ data: post })
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await db.collection('users').doc(user._id).update({
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data: { 'stats.posts': _.inc(1) }
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})
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return { postId: result._id }
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}
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