const chai = require('chai');
const dirtyChai = require('dirty-chai');
const path = require('path');
const { closeWindow } = require('./window-helpers');
const { remote, webFrame } = require('electron');
const { BrowserWindow, ipcMain } = remote;

const { expect } = chai;
chai.use(dirtyChai);

/* Most of the APIs here don't use standard callbacks */
/* eslint-disable standard/no-callback-literal */

describe('webFrame module', function () {
  const fixtures = path.resolve(__dirname, 'fixtures');
  let w = null;

  afterEach(function () {
    return closeWindow(w).then(function () { w = null; });
  });

  it('supports setting the visual and layout zoom level limits', function () {
    expect(() => {
      webFrame.setVisualZoomLevelLimits(1, 50);
      webFrame.setLayoutZoomLevelLimits(0, 25);
    }).to.not.throw();
  });

  it('calls a spellcheck provider', async () => {
    w = new BrowserWindow({
      show: false,
      webPreferences: {
        nodeIntegration: true
      }
    });
    await w.loadFile(path.join(fixtures, 'pages', 'webframe-spell-check.html'));
    w.focus();
    await w.webContents.executeJavaScript('document.querySelector("input").focus()', true);

    const spellCheckerFeedback =
      new Promise(resolve => {
        ipcMain.on('spec-spell-check', (e, words, callback) => {
          if (words.length === 5) {
            // The API calls the provider after every completed word.
            // The promise is resolved only after this event is received with all words.
            resolve([words, callback]);
          }
        });
      });
    const inputText = `spleling test you're `;
    for (const keyCode of inputText) {
      w.webContents.sendInputEvent({ type: 'char', keyCode });
    }
    const [words, callback] = await spellCheckerFeedback;
    expect(words.sort()).to.deep.equal(['spleling', 'test', `you're`, 'you', 're'].sort());
    expect(callback).to.be.true();
  });

  it('top is self for top frame', () => {
    expect(webFrame.top.context).to.equal(webFrame.context);
  });

  it('opener is null for top frame', () => {
    expect(webFrame.opener).to.be.null();
  });

  it('firstChild is null for top frame', () => {
    expect(webFrame.firstChild).to.be.null();
  });

  it('getFrameForSelector() does not crash when not found', () => {
    expect(webFrame.getFrameForSelector('unexist-selector')).to.be.null();
  });

  it('findFrameByName() does not crash when not found', () => {
    expect(webFrame.findFrameByName('unexist-name')).to.be.null();
  });

  it('findFrameByRoutingId() does not crash when not found', () => {
    expect(webFrame.findFrameByRoutingId(-1)).to.be.null();
  });
});