/**
 * 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)
})