wip(backend): Split migration script into two steps

sites/backend/scripts/mongo-to-json.mjs

@@ -0,0 +1,162 @@
+import path from 'path'
+import fs from 'fs'
+import { PrismaClient } from '@prisma/client'
+import { hash, encryption } from '../src/utils/crypto.mjs'
+import { clean } from '../src/utils/index.mjs'
+import { verifyConfig } from '../src/config.mjs'
+
+const config = verifyConfig()
+
+/*
+ * Note: This is not intended to work for you
+ *
+ * This script imports a raw database dump of the current (v2)
+ * FreeSewing backend and writes it to JSON.
+ *
+ * This is not the kind of thing you should try to run yourself
+ * because for one thing you do not have a raw database dump
+ */
+
+// Dumped data folder
+const dir = '/home/joost/'
+
+let data
+// Dump filtered data from raw data
+const file = 'freesewing-dump.json'
+data = filterData(JSON.parse(fs.readFileSync(path.resolve(dir, file), { encoding: 'utf-8' })))
+console.log(JSON.stringify(data, null, 2))
+
+/*
+ * Only migrate user data if the user was active in the last 12 months
+ * Unless they are patrons. Keep patrons regardless coz patrons rock.
+ */
+function filterData(data) {
+  let i = 0
+  const filtered = {
+    totals: {
+      users: Object.keys(data.users).length,
+      people: Object.keys(data.people).length,
+      patterns: Object.keys(data.patterns).length,
+      subscribers: Object.keys(data.subscribers).length,
+    },
+    users: {},
+    people: {},
+    patterns: {},
+    subscribers: [],
+  }
+  for (const user of data.users) {
+    const migrated = migrateUser(user)
+    if (migrated) {
+      i++
+      filtered.users[migrated.handle] = migrated
+    }
+  }
+  const users = Object.keys(filtered.users)
+  for (const person of data.people) {
+    if (users.includes(person.user)) filtered.people[person.handle] = migratePerson(person)
+  }
+  for (const pattern of data.patterns) {
+    if (users.includes(pattern.user)) filtered.patterns[pattern.handle] = migratePattern(pattern)
+  }
+  for (const sub of data.subscribers) {
+    filtered.subscribers.push(migrateSubscriber(sub))
+  }
+
+  return filtered
+}
+
+/*
+ * Migrates role field
+ */
+function getRole(entry) {
+  if (entry.handle === 'joost') return 'admin'
+  if (entry.patron > 0) return 'patron'
+  return 'user'
+}
+
+/*
+ * Migrates consent field
+ */
+function getConsent(entry) {
+  let consent = 0
+  if (entry.consent.profile) consent++
+  if (entry.consent.model) consent++
+  if (entry.consent.openData) consent++
+  return consent
+}
+
+/*
+ * Migrates user entry
+ */
+function migrateUser(entry) {
+  const now = Date.now()
+  const lastLogin = new Date(entry.time?.login || 0)
+  const daysSince = Math.floor((now - lastLogin) / (1000 * 3600 * 24))
+  // FreeSewing's privacy policy says we'll keep your data 12 months
+  // so if last login is longer than that, we won't migrate the account
+  if (daysSince > 366) return false
+
+  return {
+    data: {
+      settings: entry.settings,
+      social: entry.social,
+      bio: entry.bio,
+      img: entry.img,
+    },
+    consent: getConsent(entry),
+    patron: entry.patron,
+    status: 1,
+    handle: entry.handle,
+    username: entry.username,
+    role: getRole(entry),
+    ehash: entry.ehash,
+    password: entry.password,
+    createdAt: entry.createdAt,
+    email: entry.email,
+    initial: entry.initial,
+    newsletter: entry.newsletter,
+    img: entry.img,
+  }
+}
+
+/*
+ * Migrates person entry
+ */
+function migratePerson(entry) {
+  return {
+    user: entry.user,
+    units: entry.units,
+    name: entry.name,
+    handle: entry.handle,
+    img: entry.img,
+    data: { notes: entry.notes, units: entry.units },
+    measurements: entry.measurements,
+    createdAt: entry.created,
+    updatedAt: entry.updatedAt,
+  }
+}
+
+/*
+ * Migrates pattern entry
+ */
+function migratePattern(entry) {
+  return {
+    handle: entry.handle,
+    user: entry.user,
+    name: entry.name,
+    createdAt: entry.createdAt,
+    updatedAt: entry.updatedAt,
+    person: entry.person,
+    data: { ...entry.data, notes: entry.notes },
+  }
+}
+
+/*
+ * Migrates subscriber entry
+ */
+function migrateSubscriber(entry) {
+  return {
+    createdAt: entry.created,
+    email: entry.email,
+  }
+}