// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

import * as Lit from '../lit/lit.js';
import * as VisualLogging from '../visual_logging/visual_logging.js';

import {UIUtils} from './legacy.js';

const {html} = Lit;

export function render(container: HTMLElement) {
  function createDivWithP(text: string): HTMLDivElement {
    const div = document.createElement('div');
    div.style.paddingLeft = '25px';
    const p = document.createElement('p');
    p.style.marginLeft = '-25px';
    p.textContent = text;
    div.appendChild(p);
    container.appendChild(div);
    return div;
  }

  function onChange(event: Event): void {
    const menu = event.target;
    if (menu instanceof HTMLSelectElement) {
      console.log('Option selected: ', menu.value);
    }
  }

  {
    const simpleMenuHTML = createDivWithP('Simple item select with lit-html');
    Lit.render(
        html`<select id="menu" aria-label="Select an option"
                @change=${onChange}>
        <option hidden>Select an option</option>
        <option id="option-1" jslog=${VisualLogging.item('option-1').track({
          click: true
        })}
                value="Option1">Option 1</option>
        <option jslog=${VisualLogging.item('option-2').track({
          click: true
        })}
                value="Option2">Option 2</option>
        <option disabled jslog=${VisualLogging.item('option-3').track({
          click: true
        })}
                value="Option3">Option 3</option>
      </select>`,
        simpleMenuHTML);
  }

  {
    const disabledMenuHTML = createDivWithP('Disabled select with lit-html');
    // clang-format off
    Lit.render(
        html`<select disabled aria-label="Select an option" @change=${onChange}>
                <option hidden>Select an option</option>
                <option jslog=${VisualLogging.item('option-1').track({
                  click: true
                })} value="Option1">Option 1</option>
              </select>`,
        disabledMenuHTML);
    // clang-format on
  }

  {
    const groupMenuHTML = createDivWithP('Select with groups with lit-html');
    Lit.render(
        html`<select aria-label="Select an option"
                  @change=${onChange}>
        <optgroup label="Group 1">
          <option jslog=${VisualLogging.item('option-1').track({
          click: true
        })}
          value="Option1">Option 1</option>
        </optgroup>
        <optgroup label="Group 2">
          <option jslog=${VisualLogging.item('option-2').track({
          click: true
        })}
          value="Option2">Option 2</option>
          <option jslog=${VisualLogging.item('option-3').track({
          click: true
        })}
          value="Option3">Option 3</option>
        </optgroup>
      </select>`,
        groupMenuHTML);
  }

  {
    const simpleMenuImperative = createDivWithP('Simple item select with imperative API');
    const simpleSelect = UIUtils.createSelect('Select an option', [
      'Option 1',
      'Option 2',
      'Option 3',
    ]);
    simpleSelect.addEventListener('change', event => onChange(event));
    simpleMenuImperative.appendChild(simpleSelect);
  }

  {
    const groupMenuImperative = createDivWithP('Select with groups with imperative API');
    const group1 = new Map<string, string[]>([['Group 1', ['Option 1']]]);
    const group2 = new Map<string, string[]>([['Group 2', ['Option 2', 'Option 3']]]);
    const groupSelect = UIUtils.createSelect('Select an option', [group1, group2]);
    groupSelect.addEventListener('change', event => onChange(event));
    groupMenuImperative.appendChild(groupSelect);
  }
}