/**
 * @license
 * Copyright 2017 Google LLC
 * SPDX-License-Identifier: Apache-2.0
 */
import '../../../test/common-test-setup';
import './gr-list-view';
import {GrListView} from './gr-list-view';
import {queryAndAssert, stubBaseUrl} from '../../../test/test-utils';
import {GrButton} from '../gr-button/gr-button';
import {fixture, html, assert} from '@open-wc/testing';
import {testResolver} from '../../../test/common-test-setup';
import {navigationToken} from '../../core/gr-navigation/gr-navigation';

suite('gr-list-view tests', () => {
  let element: GrListView;

  setup(async () => {
    element = await fixture(html`<gr-list-view></gr-list-view>`);
  });

  test('render', () => {
    assert.shadowDom.equal(
      element,
      /* HTML */ `
        <div id="topContainer">
          <div class="filterContainer">
            <label> Filter: </label>
            <iron-input>
              <input id="filter" type="text" />
            </iron-input>
          </div>
          <div id="createNewContainer">
            <gr-button
              aria-disabled="false"
              id="createNew"
              link=""
              primary=""
              role="button"
              tabindex="0"
            >
              Create New
            </gr-button>
          </div>
        </div>
        <slot> </slot>
        <nav>
          Page 1
          <a hidden="" href="" id="prevArrow">
            <gr-icon icon="chevron_left"></gr-icon>
          </a>
          <a hidden="" href=",25" id="nextArrow">
            <gr-icon icon="chevron_right"></gr-icon>
          </a>
        </nav>
      `
    );
  });

  test('computeNavLink', () => {
    element.offset = 25;
    element.itemsPerPage = 25;
    element.filter = 'test';
    element.path = '/base/admin/projects';

    stubBaseUrl('/base');

    assert.equal(
      element.computeNavLink(1),
      '/base/admin/projects/q/filter:test,50'
    );

    assert.equal(
      element.computeNavLink(-1),
      '/base/admin/projects/q/filter:test'
    );

    element.filter = undefined;
    assert.equal(element.computeNavLink(1), '/base/admin/projects,50');

    assert.equal(element.computeNavLink(-1), '/base/admin/projects');

    element.filter = 'plugins/';
    assert.equal(
      element.computeNavLink(1),
      '/base/admin/projects/q/filter:plugins/,50'
    );
  });

  test('_onValueChange', async () => {
    let resolve: (url: string) => void;
    const promise = new Promise(r => (resolve = r));
    element.path = '/admin/projects';
    sinon
      .stub(testResolver(navigationToken), 'setUrl')
      .callsFake(r => resolve(r));

    element.filter = 'test';
    await element.updateComplete;

    const url = await promise;
    assert.equal(url, '/admin/projects/q/filter:test');
  });

  test('_filterChanged not reload when swap between falsy values', () => {
    const debounceReloadStub = sinon.stub(element, 'debounceReload');
    element.filter = undefined;
    element.filter = '';
    assert.isFalse(debounceReloadStub.called);
  });

  test('next button', async () => {
    element.itemsPerPage = 25;
    element.items = Array.from({length: 26});
    element.loading = false;
    await element.updateComplete;

    assert.isFalse(element.hideNextArrow());
    element.loading = true;
    assert.isTrue(element.hideNextArrow());
    element.loading = false;
    assert.isFalse(element.hideNextArrow());
    element.items = [];
    assert.isTrue(element.hideNextArrow());
    element.items = Array.from({length: 4});
    assert.isTrue(element.hideNextArrow());
  });

  test('prev button', async () => {
    element.loading = true;
    element.offset = 0;
    await element.updateComplete;
    assert.isTrue(
      queryAndAssert<HTMLAnchorElement>(element, '#prevArrow').hasAttribute(
        'hidden'
      )
    );

    element.loading = false;
    element.offset = 0;
    await element.updateComplete;
    assert.isTrue(
      queryAndAssert<HTMLAnchorElement>(element, '#prevArrow').hasAttribute(
        'hidden'
      )
    );

    element.loading = false;
    element.offset = 5;
    await element.updateComplete;
    assert.isFalse(
      queryAndAssert<HTMLAnchorElement>(element, '#prevArrow').hasAttribute(
        'hidden'
      )
    );
  });

  test('createNew link appears correctly', async () => {
    assert.isFalse(
      queryAndAssert<HTMLDivElement>(
        element,
        '#createNewContainer'
      ).classList.contains('show')
    );
    element.createNew = true;
    await element.updateComplete;
    assert.isTrue(
      queryAndAssert<HTMLDivElement>(
        element,
        '#createNewContainer'
      ).classList.contains('show')
    );
  });

  test('fires create clicked event when button tapped', async () => {
    const clickHandler = sinon.stub();
    element.addEventListener('create-clicked', clickHandler);
    element.createNew = true;
    await element.updateComplete;
    queryAndAssert<GrButton>(element, '#createNew').click();
    assert.isTrue(clickHandler.called);
  });

  test('next/prev links change when path changes', async () => {
    const BRANCHES_PATH = '/path/to/branches';
    const TAGS_PATH = '/path/to/tags';
    element.offset = 0;
    element.itemsPerPage = 25;
    element.filter = '';
    element.path = BRANCHES_PATH;
    await element.updateComplete;

    assert.dom.equal(
      queryAndAssert(element, 'nav a'),
      /* HTML */ `
        <a hidden="" href="${BRANCHES_PATH}" id="prevArrow">
          <gr-icon icon="chevron_left"> </gr-icon>
        </a>
      `
    );

    element.path = TAGS_PATH;
    await element.updateComplete;

    assert.dom.equal(
      queryAndAssert(element, 'nav a'),
      /* HTML */ `
        <a hidden="" href="${TAGS_PATH}" id="prevArrow">
          <gr-icon icon="chevron_left"> </gr-icon>
        </a>
      `
    );
  });

  test('computePage', () => {
    element.offset = 0;
    element.itemsPerPage = 25;
    assert.equal(element.computePage(), 1);
    element.offset = 50;
    element.itemsPerPage = 25;
    assert.equal(element.computePage(), 3);
  });
});