chore: adding 1st migration script

core/api/src/migrations/20231220170640-quiz-new-collection-1.ts

@@ -0,0 +1,44 @@
+/* eslint @typescript-eslint/ban-ts-comment: "off" */
+// @ts-nocheck
+async function migrateAccounts(db, batchSize = 100) {
+  const cursor = db.collection("accounts").find()
+
+  let batchCount = 0
+  while (await cursor.hasNext()) {
+    const quizUpdates = []
+    for (let i = 0; i < batchSize && (await cursor.hasNext()); i++) {
+      const account = await cursor.next()
+      const uniqueEarn = [...new Set(account.earn)]
+      for (const quizId of uniqueEarn) {
+        quizUpdates.push({
+          insertOne: {
+            accountId: account.id,
+            quizId,
+            createAt: new Date(),
+          },
+        })
+      }
+    }
+
+    batchCount += quizUpdates.length
+
+    if (quizUpdates.length > 0) {
+      await db.collection("quizs").bulkWrite(quizUpdates)
+      console.log(`Processed ${batchCount} accounts`)
+    }
+  }
+
+  console.log(`Processed ${batchCount} accounts`)
+}
+
+module.exports = {
+  async up(db) {
+    await db
+      .collection("quizs")
+      .createIndex({ accountId: 1, quizId: 1 }, { unique: true })
+
+    console.log("Begin migration to Quiz collection")
+    await migrateAccounts(db)
+    console.log("Migration completed")
+  },
+}