/* eslint-disable flowtype/require-valid-file-annotation */
import { flushdb } from '../test/support';
import BacklinksService from './backlinks';
import { buildDocument } from '../test/factories';
import Backlink from '../models/Backlink';

const Backlinks = new BacklinksService();

beforeEach(flushdb);
beforeEach(jest.resetAllMocks);

describe('documents.update', () => {
  test('should not fail on a document with no previous revisions', async () => {
    const otherDocument = await buildDocument();
    const document = await buildDocument({
      text: `[this is a link](${otherDocument.url})`,
    });

    await Backlinks.on({
      name: 'documents.update',
      documentId: document.id,
      collectionId: document.collectionId,
      teamId: document.teamId,
      actorId: document.createdById,
      data: { autosave: false },
    });

    const backlinks = await Backlink.findAll({
      where: { reverseDocumentId: document.id },
    });

    expect(backlinks.length).toBe(1);
  });

  test('should create new backlink records', async () => {
    const otherDocument = await buildDocument();
    const document = await buildDocument();

    document.text = `[this is a link](${otherDocument.url})`;
    await document.save();

    await Backlinks.on({
      name: 'documents.update',
      documentId: document.id,
      collectionId: document.collectionId,
      teamId: document.teamId,
      actorId: document.createdById,
      data: { autosave: false },
    });

    const backlinks = await Backlink.findAll({
      where: { reverseDocumentId: document.id },
    });

    expect(backlinks.length).toBe(1);
  });

  test('should destroy removed backlink records', async () => {
    const otherDocument = await buildDocument();
    const document = await buildDocument({
      text: `[this is a link](${otherDocument.url})`,
    });

    await Backlinks.on({
      name: 'documents.publish',
      documentId: document.id,
      collectionId: document.collectionId,
      teamId: document.teamId,
      actorId: document.createdById,
      data: { autosave: false },
    });

    document.text = 'Link is gone';
    await document.save();

    await Backlinks.on({
      name: 'documents.update',
      documentId: document.id,
      collectionId: document.collectionId,
      teamId: document.teamId,
      actorId: document.createdById,
      data: { autosave: false },
    });

    const backlinks = await Backlink.findAll({
      where: { reverseDocumentId: document.id },
    });

    expect(backlinks.length).toBe(0);
  });

  test('should update titles in backlinked documents', async () => {
    const newTitle = 'test';
    const document = await buildDocument();
    const otherDocument = await buildDocument();

    // create a doc with a link back
    document.text = `[${otherDocument.title}](${otherDocument.url})`;
    await document.save();

    // ensure the backlinks are created
    await Backlinks.on({
      name: 'documents.update',
      documentId: document.id,
      collectionId: document.collectionId,
      teamId: document.teamId,
      actorId: document.createdById,
      data: { autosave: false },
    });

    // change the title of the linked doc
    otherDocument.title = newTitle;
    await otherDocument.save();

    // does the text get updated with the new title
    await Backlinks.on({
      name: 'documents.update',
      documentId: otherDocument.id,
      collectionId: otherDocument.collectionId,
      teamId: otherDocument.teamId,
      actorId: otherDocument.createdById,
      data: { autosave: false },
    });
    await document.reload();

    expect(document.text).toBe(`[${newTitle}](${otherDocument.url})`);
  });
});