// Copyright 2021 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

import {renderElementIntoDOM} from '../../../testing/DOMHelpers.js';

import * as TextPrompt from './text_prompt.js';

const renderTextPrompt = (data: TextPrompt.TextPrompt.TextPromptData) => {
  const component = new TextPrompt.TextPrompt.TextPrompt();
  component.data = data;
  return component;
};

const defaultTextPromptData: TextPrompt.TextPrompt.TextPromptData = {
  ariaLabel: 'Quick open prompt',
  prefix: 'Open',
  suggestion: 'File',
};

describe('TextPrompt', () => {
  it('renders one text prompt correctly', () => {
    const component = renderTextPrompt(defaultTextPromptData);
    renderElementIntoDOM(component);

    const textPromptPrefixs = component.shadowRoot!.querySelectorAll('.prefix');
    assert.lengthOf(textPromptPrefixs, 1);
    assert.instanceOf(textPromptPrefixs[0], HTMLSpanElement);

    const textPromptInputs = component.shadowRoot!.querySelectorAll('.text-prompt-input');
    assert.lengthOf(textPromptInputs, 1);
    assert.instanceOf(textPromptInputs[0], HTMLSpanElement);
    assert.deepEqual(component.data, defaultTextPromptData);
  });

  describe('data setter', () => {
    it('sets the prefix correctly', () => {
      const component = renderTextPrompt(defaultTextPromptData);
      renderElementIntoDOM(component);

      component.setPrefix('Run');

      const textPromptPrefixs = component.shadowRoot!.querySelectorAll('.prefix');
      assert.lengthOf(textPromptPrefixs, 1);
      assert.strictEqual(textPromptPrefixs[0].textContent?.trim(), 'Run');
    });

    it('sets the suggestion correctly', () => {
      const component = renderTextPrompt(defaultTextPromptData);
      renderElementIntoDOM(component);

      component.setSuggestion('Command');

      const textPromptSuggestions = component.shadowRoot!.querySelectorAll('.suggestion');
      assert.lengthOf(textPromptSuggestions, 1);
      assert.strictEqual((textPromptSuggestions[0] as HTMLInputElement).value.trim(), 'Command');
    });

    it('sets the input text correctly', () => {
      const component = renderTextPrompt(defaultTextPromptData);
      renderElementIntoDOM(component);

      component.setText('text');

      const textPromptInputs = component.shadowRoot!.querySelectorAll('.input');
      assert.lengthOf(textPromptInputs, 1);
      assert.strictEqual((textPromptInputs[0] as HTMLInputElement).value.trim(), 'text');
    });

    it('sets the input and suggestion text correctly', () => {
      const component = renderTextPrompt(defaultTextPromptData);
      renderElementIntoDOM(component);

      component.setText('@');
      component.setSuggestion('Command');

      const textPromptInputs = component.shadowRoot!.querySelectorAll('.input');
      assert.strictEqual((textPromptInputs[0] as HTMLInputElement).value.trim(), '@');
      const textPromptSuggestions = component.shadowRoot!.querySelectorAll('.suggestion');
      assert.strictEqual((textPromptSuggestions[0] as HTMLInputElement).value.trim(), '@Command');
    });
  });

  it('focus on the input element correctly', () => {
    const component = renderTextPrompt(defaultTextPromptData);
    renderElementIntoDOM(component);

    const textPromptInput = component.shadowRoot!.querySelectorAll('.text-prompt-input')[0];
    assert.isFalse(textPromptInput.hasFocus());

    component.focus();
    assert.isTrue(textPromptInput.hasFocus());
  });
});