修复云端数据一致性问题

cloudfunctions/leaderboard/data.js

@@ -0,0 +1,19 @@
+const crypto = require('crypto')
+
+const memberKey = (openid) =>
+  crypto.createHash('sha256').update(String(openid || '')).digest('hex')
+
+const publicEntry = (entry) => {
+  if (!entry) return null
+  const { memberKey: _memberKey, openid: _openid, ...publicData } = entry
+  return publicData
+}
+
+const publicRanked = (ranked) => (ranked || []).map(publicEntry)
+
+const findMyEntry = (ranked, key) => {
+  const item = (ranked || []).find(entry => entry.memberKey === key)
+  return item ? { ...publicEntry(item), isMe: true } : null
+}
+
+module.exports = { memberKey, publicEntry, publicRanked, findMyEntry }