import { initDb } from '.';
import PouchDB from 'pouchdb';
import { appendTrkpt, deleteCurrent, saveCurrent } from './gpx';

import PouchDBFind from 'pouchdb-find';
import { mkdtempSync, rmdirSync } from 'fs';
import { join } from 'path';
import { tmpdir } from 'os';
PouchDB.plugin(PouchDBFind);
//PouchDB.plugin(require('pouchdb-find'));

// export class PouchService {
//     constructor() {
//         PouchDB.plugin(PouchDBFind);
//     }
// }

// jest.useFakeTimers();

const tmpDir = mkdtempSync(join(tmpdir(), 'dyomedea-testDB'));

var db: PouchDB.Database;

beforeEach(async () => {
  db = new PouchDB(tmpDir);
  await initDb(db, () => {});
});

afterEach(async () => {
  //  await db.close();
  await db.destroy();
});

describe('Checking that trkpts are beeing inserted', () => {
  test('and that we have two documents after the first call', async () => {
    await appendTrkpt(db, {});
    const results = await db.find({ selector: {} });
    const docs = results.docs;
    //        console.log(`docs: ${JSON.stringify(docs)}`);
    expect(docs.length).toBe(2);
  });
  test('and that we have three documents after the second call', async () => {
    await appendTrkpt(db, {});
    await appendTrkpt(db, {});
    const results = await db.find({ selector: {} });
    const docs = results.docs;
    console.log(`docs: ${JSON.stringify(docs)}`);
    expect(docs.length).toBe(3);
  });
});

describe('Checking that saveCurrent() is working as expected', () => {
  test(', that we still have two documents after saving.', async () => {
    await appendTrkpt(db, {});
    await saveCurrent(db);
    const results = await db.find({
      selector: {},
    });
    const docs = results.docs;
    //        console.log(`docs: ${JSON.stringify(docs)}`);
    expect(docs.length).toBe(2);
  });
  test("and that we don't have current tracks after saving.", async () => {
    await appendTrkpt(db, {});
    await saveCurrent(db);
    const results = await db.find({
      selector: {
        type: 'gpx',
        subtype: 'current',
      },
    });
    const docs = results.docs;
    //        console.log(`docs: ${JSON.stringify(docs)}`);
    expect(docs.length).toBe(0);
  });
});

describe('Checking that deleteCurrent() is working as expected', () => {
  test(', that we have no more documents after deleting.', async () => {
    await appendTrkpt(db, { time: '' });
    await deleteCurrent(db);
    const results = await db.find({
      selector: {},
    });
    const docs = results.docs;
    //        console.log(`docs: ${JSON.stringify(docs)}`);
    expect(docs.length).toBe(0);
  });
  test(', that we have two documents from a saved track after deleting the current one.', async () => {
    await appendTrkpt(db, { time: '' });
    await saveCurrent(db);
    await appendTrkpt(db, { time: '' });
    await deleteCurrent(db);
    const results = await db.find({
      selector: {},
    });
    const docs = results.docs;
    //        console.log(`docs: ${JSON.stringify(docs)}`);
    expect(docs.length).toBe(2);
  });
});