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scripts/recalculateAllUserRatings.js

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+/**
+ * One-time migration: recalculate rate (total stars) and user_score (average)
+ * for all users. Run from modstagram-back:
+ * node scripts/recalculateAllUserRatings.js
+ */
+require('dotenv').config()
+const mongoose = require('mongoose')
+const UserModel = require('../models/UserModel')
+const { recalculateUserRating } = require('../utils/commentRating')
+
+async function main() {
+  const uri = process.env.DATABASE_URL || process.env.MONGODB_URI || process.env.DB_URL
+  if (!uri) {
+    console.error('DATABASE_URL (or MONGODB_URI/DB_URL) required')
+    process.exit(1)
+  }
+
+  await mongoose.connect(uri)
+  const users = await UserModel.find({}, '_id').lean()
+  console.log(`Recalculating ${users.length} users...`)
+
+  for (const user of users) {
+    await recalculateUserRating(user._id)
+  }
+
+  console.log('Done.')
+  await mongoose.disconnect()
+}
+
+main().catch((err) => {
+  console.error(err)
+  process.exit(1)
+})