add migrations to apply reindex

app/api/migrations/migrations/169-reindex_persist_filename_with_fullText_object/index.ts

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+import { Db } from 'mongodb';
+
+export default {
+  delta: 169,
+
+  name: 'reindex_persist_filename_with_fullText_object',
+
+  description:
+    "We're now indexing document.filename within the fullText object on elasticsearch, this is usefull because on search/v2 endpoint we need to return which filename each text snippet belongs to.",
+
+  reindex: true,
+
+  // eslint-disable-next-line @typescript-eslint/no-unused-vars
+  async up(db: Db) {
+    process.stdout.write(`${this.name}...\r\n`);
+  },
+};

app/api/migrations/migrations/169-reindex_persist_filename_with_fullText_object/specs/169-reindex_persist_filename_with_fullText_object.spec.ts

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+import { Db } from 'mongodb';
+
+import testingDB from 'api/utils/testing_db';
+import migration from '../index';
+import { Fixture } from '../types';
+import { fixtures } from './fixtures';
+
+let db: Db | null;
+
+const initTest = async (fixture: Fixture) => {
+  await testingDB.setupFixturesAndContext(fixture);
+  db = testingDB.mongodb!;
+  await migration.up(db);
+};
+
+beforeAll(async () => {
+  // eslint-disable-next-line @typescript-eslint/no-unused-vars
+  jest.spyOn(process.stdout, 'write').mockImplementation((str: string | Uint8Array) => true);
+});
+
+afterAll(async () => {
+  await testingDB.tearDown();
+});
+
+describe('migration test', () => {
+  beforeAll(async () => {
+    await initTest(fixtures);
+  });
+
+  it('should have a delta number', () => {
+    expect(migration.delta).toBe(169);
+  });
+
+  it('should check if a reindex is needed', async () => {
+    expect(migration.reindex).toBe(true);
+  });
+});

app/api/migrations/migrations/169-reindex_persist_filename_with_fullText_object/specs/fixtures.ts

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+import { ObjectId } from 'mongodb';
+import { Fixture } from '../types';
+
+const fixtures: Fixture = {
+  entities: [
+    {
+      _id: new ObjectId(),
+      title: 'test_doc',
+    },
+  ],
+};
+
+export { fixtures };

app/api/migrations/migrations/169-reindex_persist_filename_with_fullText_object/types.ts

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+import { ObjectId } from 'mongodb';
+
+interface Entity {
+  _id: ObjectId;
+  title: string;
+  [k: string]: unknown | undefined;
+}
+
+interface Fixture {
+  entities: Entity[];
+}
+
+export type { Entity, Fixture };