/**
 * @license
 * Copyright (C) 2016 The Android Open Source Project
 *
 * 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/common-test-setup-karma';
import './gr-change-table-editor';
import {GrChangeTableEditor} from './gr-change-table-editor';
import {queryAndAssert} from '../../../test/test-utils';
import {createServerInfo} from '../../../test/test-data-generators';
import {fixture, html} from '@open-wc/testing-helpers';

suite('gr-change-table-editor tests', () => {
  let element: GrChangeTableEditor;
  let columns: string[];

  setup(async () => {
    element = await fixture<GrChangeTableEditor>(
      html`<gr-change-table-editor></gr-change-table-editor>`
    );

    columns = [
      'Subject',
      'Status',
      'Owner',
      'Reviewers',
      'Comments',
      'Repo',
      'Branch',
      'Updated',
    ];

    element.displayedColumns = columns;
    element.showNumber = false;
    element.serverConfig = createServerInfo();
    await element.updateComplete;
  });

  test('renders', () => {
    expect(element).shadowDom.to.equal(/* HTML */ ` <div class="gr-form-styles">
      <table id="changeCols">
        <thead>
          <tr>
            <th class="nameHeader">Column</th>
            <th class="visibleHeader">Visible</th>
          </tr>
        </thead>
        <tbody>
          <tr>
            <td><label for="numberCheckbox"> Number </label></td>
            <td class="checkboxContainer">
              <input id="numberCheckbox" name="number" type="checkbox" />
            </td>
          </tr>
          <tr>
            <td><label for="Subject"> Subject </label></td>
            <td class="checkboxContainer">
              <input checked="" id="Subject" name="Subject" type="checkbox" />
            </td>
          </tr>
          <tr>
            <td><label for="Status"> Status </label></td>
            <td class="checkboxContainer">
              <input checked="" id="Status" name="Status" type="checkbox" />
            </td>
          </tr>
          <tr>
            <td><label for="Owner"> Owner </label></td>
            <td class="checkboxContainer">
              <input checked="" id="Owner" name="Owner" type="checkbox" />
            </td>
          </tr>
          <tr>
            <td><label for="Reviewers"> Reviewers </label></td>
            <td class="checkboxContainer">
              <input
                checked=""
                id="Reviewers"
                name="Reviewers"
                type="checkbox"
              />
            </td>
          </tr>
          <tr>
            <td><label for="Repo"> Repo </label></td>
            <td class="checkboxContainer">
              <input checked="" id="Repo" name="Repo" type="checkbox" />
            </td>
          </tr>
          <tr>
            <td><label for="Branch"> Branch </label></td>
            <td class="checkboxContainer">
              <input checked="" id="Branch" name="Branch" type="checkbox" />
            </td>
          </tr>
          <tr>
            <td><label for="Updated"> Updated </label></td>
            <td class="checkboxContainer">
              <input checked="" id="Updated" name="Updated" type="checkbox" />
            </td>
          </tr>
          <tr>
            <td><label for="Size"> Size </label></td>
            <td class="checkboxContainer">
              <input id="Size" name="Size" type="checkbox" />
            </td>
          </tr>
        </tbody>
      </table>
    </div>`);
  });

  test('renders', () => {
    const rows = queryAndAssert(element, 'tbody').querySelectorAll('tr');
    let tds;

    // The `+ 1` is for the number column, which isn't included in the change
    // table behavior's list.
    assert.equal(rows.length, element.defaultColumns.length + 1);
    for (let i = 0; i < element.defaultColumns.length; i++) {
      tds = rows[i + 1].querySelectorAll('td');
      assert.equal(tds[0].textContent, element.defaultColumns[i]);
    }
  });

  test('hide item', async () => {
    const checkbox = queryAndAssert<HTMLInputElement>(
      element,
      'table tr:nth-child(2) input'
    );
    const isChecked = checkbox.checked;
    const displayedLength = element.displayedColumns.length;
    assert.isTrue(isChecked);

    checkbox.click();
    await element.updateComplete;

    assert.equal(element.displayedColumns.length, displayedLength - 1);
  });

  test('show item', async () => {
    element.displayedColumns = ['Status', 'Owner', 'Repo', 'Branch', 'Updated'];
    // trigger computation of enabled displayed columns
    element.serverConfig = createServerInfo();
    await element.updateComplete;
    const checkbox = queryAndAssert<HTMLInputElement>(
      element,
      'table tr:nth-child(2) input'
    );
    const isChecked = checkbox.checked;
    const displayedLength = element.displayedColumns.length;
    assert.isFalse(isChecked);
    const table = queryAndAssert<HTMLTableElement>(element, 'table');
    assert.equal(table.style.display, '');

    checkbox.click();
    await element.updateComplete;

    assert.equal(element.displayedColumns.length, displayedLength + 1);
  });

  test('getDisplayedColumns', () => {
    const enabledColumns = columns.filter(column =>
      element.isColumnEnabled(column)
    );
    assert.deepEqual(element.getDisplayedColumns(), enabledColumns);
    const input = queryAndAssert<HTMLInputElement>(
      element,
      '.checkboxContainer input[name=Subject]'
    );
    input.click();
    assert.deepEqual(
      element.getDisplayedColumns(),
      enabledColumns.filter(c => c !== 'Subject')
    );
  });

  test('handleCheckboxContainerClick relays taps to checkboxes', async () => {
    const firstContainer = queryAndAssert<HTMLTableRowElement>(
      element,
      'table tr:first-of-type .checkboxContainer'
    );
    assert.isFalse(element.showNumber);
    firstContainer.click();
    assert.isTrue(element.showNumber);

    const lastContainer = queryAndAssert<HTMLTableRowElement>(
      element,
      'table tr:last-of-type .checkboxContainer'
    );
    const lastColumn =
      element.defaultColumns[element.defaultColumns.length - 1];
    assert.notInclude(element.displayedColumns, lastColumn);
    lastContainer.click();
    await element.updateComplete;
    assert.include(element.displayedColumns, lastColumn);
  });

  test('handleNumberCheckboxClick', () => {
    const numberInput = queryAndAssert<HTMLInputElement>(
      element,
      '.checkboxContainer input[name=number]'
    );
    numberInput.click();
    assert.isTrue(element.showNumber);

    numberInput.click();
    assert.isFalse(element.showNumber);
  });

  test('handleTargetClick', () => {
    assert.include(element.displayedColumns, 'Subject');
    const subjectInput = queryAndAssert<HTMLInputElement>(
      element,
      '.checkboxContainer input[name=Subject]'
    );
    subjectInput.click();
    assert.notInclude(element.displayedColumns, 'Subject');
  });
});