/**
 * Copyright 2018 Google Inc. All rights reserved.
 * Modifications copyright (c) Microsoft Corporation.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import { test as it, expect } from './pageTest';
import url from 'url';

it('page.goBack should work @smoke', async ({ page, server }) => {
  expect(await page.goBack()).toBe(null);

  await page.goto(server.EMPTY_PAGE);
  await page.goto(server.PREFIX + '/grid.html');

  let response = await page.goBack();
  expect(response.ok()).toBe(true);
  expect(response.url()).toContain(server.EMPTY_PAGE);

  response = await page.goForward();
  expect(response.ok()).toBe(true);
  expect(response.url()).toContain('/grid.html');

  response = await page.goForward();
  expect(response).toBe(null);
});

it('page.goBack should work with HistoryAPI', async ({ page, server }) => {
  await page.goto(server.EMPTY_PAGE);
  await page.evaluate(() => {
    history.pushState({}, '', '/first.html');
    history.pushState({}, '', '/second.html');
  });
  expect(page.url()).toBe(server.PREFIX + '/second.html');

  await page.goBack();
  expect(page.url()).toBe(server.PREFIX + '/first.html');
  await page.goBack();
  expect(page.url()).toBe(server.EMPTY_PAGE);
  await page.goForward();
  expect(page.url()).toBe(server.PREFIX + '/first.html');
});

it('page.goBack should work for file urls', async ({ page, server, asset, browserName, platform, isAndroid }) => {
  it.fail(browserName === 'webkit' && platform === 'darwin');
  it.skip(isAndroid, 'No files on Android');

  // WebKit embedder fails to go back/forward to the file url.
  const url1 = url.pathToFileURL(asset('empty.html')).href;
  const url2 = server.EMPTY_PAGE;
  await page.goto(url1);
  await page.setContent(`<a href='${url2}'>url2</a>`);
  expect(page.url().toLowerCase()).toBe(url1.toLowerCase());

  await page.click('a');
  expect(page.url()).toBe(url2);

  await page.goBack();
  expect(page.url().toLowerCase()).toBe(url1.toLowerCase());
  // Should be able to evaluate in the new context, and
  // not reach for the old cross-process one.
  expect(await page.evaluate(() => window.scrollX)).toBe(0);
  // Should be able to screenshot.
  await page.screenshot();

  await page.goForward();
  expect(page.url()).toBe(url2);
  expect(await page.evaluate(() => window.scrollX)).toBe(0);
  await page.screenshot();
});

it('page.reload should work', async ({ page, server }) => {
  await page.goto(server.EMPTY_PAGE);
  await page.evaluate(() => window['_foo'] = 10);
  await page.reload();
  expect(await page.evaluate(() => window['_foo'])).toBe(undefined);
});

it('page.reload should work with data url', async ({ page, server }) => {
  await page.goto('data:text/html,hello');
  expect(await page.content()).toContain('hello');
  expect(await page.reload()).toBe(null);
  expect(await page.content()).toContain('hello');
});

it('page.reload during renderer-initiated navigation', async ({ page, server }) => {
  await page.goto(server.PREFIX + '/one-style.html');
  await page.setContent(`<form method='POST' action='/post'>Form is here<input type='submit'></form>`);
  server.setRoute('/post', (req, res) => {});

  let callback;
  const reloadFailedPromise = new Promise(f => callback = f);
  page.once('request', async () => {
    await page.reload().catch(e => {});
    callback();
  });
  const clickPromise = page.click('input[type=submit]').catch(e => {});
  await reloadFailedPromise;
  await clickPromise;

  // Form submit should be canceled, and reload should eventually arrive
  // to the original one-style.html.
  await page.waitForSelector('text=hello');
});

it('page.goBack during renderer-initiated navigation', async ({ page, server }) => {
  await page.goto(server.PREFIX + '/one-style.html');
  await page.goto(server.EMPTY_PAGE);
  await page.setContent(`<form method='POST' action='/post'>Form is here<input type='submit'></form>`);
  server.setRoute('/post', (req, res) => {});

  let callback;
  const reloadFailedPromise = new Promise(f => callback = f);
  page.once('request', async () => {
    await page.goBack().catch(e => {});
    callback();
  });
  const clickPromise = page.click('input[type=submit]').catch(e => {});
  await reloadFailedPromise;
  await clickPromise;

  // Form submit should be canceled, and goBack should eventually arrive
  // to the original one-style.html.
  await page.waitForSelector('text=hello');
});

it('page.goForward during renderer-initiated navigation', async ({ page, server }) => {
  await page.goto(server.EMPTY_PAGE);
  await page.goto(server.PREFIX + '/one-style.html');
  await page.goBack();

  await page.setContent(`<form method='POST' action='/post'>Form is here<input type='submit'></form>`);
  server.setRoute('/post', (req, res) => {});

  let callback;
  const reloadFailedPromise = new Promise(f => callback = f);
  page.once('request', async () => {
    await page.goForward().catch(e => {});
    callback();
  });
  const clickPromise = page.click('input[type=submit]').catch(e => {});
  await reloadFailedPromise;
  await clickPromise;

  // Form submit should be canceled, and goForward should eventually arrive
  // to the original one-style.html.
  await page.waitForSelector('text=hello');
});