import { describe, expect, it, vi } from 'vitest';

import {
  createShortcutHandler,
  eventMatchesShortcut,
  isEditableElement,
  normaliseShortcutString,
} from './keyboard';

describe('keyboard shortcut utilities', () => {
  it('normalises shortcut strings with aliases and stable modifier order', () => {
    expect(normaliseShortcutString('Shift + Cmd + K')).toBe('shift+meta+k');
    expect(normaliseShortcutString('Control + Alt + ArrowLeft')).toBe('ctrl+alt+arrowleft');
    expect(normaliseShortcutString('CommandOrControl + Space')).toBe('mod+space');
  });

  it('matches platform-specific mod shortcuts', () => {
    const macEvent = new KeyboardEvent('keydown', {
      key: 'k',
      metaKey: true,
    });

    const windowsEvent = new KeyboardEvent('keydown', {
      key: 'k',
      ctrlKey: true,
    });

    expect(eventMatchesShortcut(macEvent, 'mod+k', { platform: 'MacIntel' })).toBe(true);
    expect(eventMatchesShortcut(windowsEvent, 'mod+k', { platform: 'Win32' })).toBe(true);
  });

  it('guards editable fields by default', () => {
    const input = document.createElement('input');
    input.type = 'text';
    document.body.appendChild(input);

    expect(isEditableElement(input)).toBe(true);

    input.remove();
  });

  it('does not run global shortcuts while typing in form fields', () => {
    const input = document.createElement('input');
    input.type = 'text';
    document.body.appendChild(input);

    const callback = vi.fn();
    const handler = createShortcutHandler([
      {
        id: 'search',
        keys: 'ctrl+k',
        handler: callback,
      },
    ]);

    input.addEventListener('keydown', handler);
    input.dispatchEvent(
      new KeyboardEvent('keydown', {
        key: 'k',
        ctrlKey: true,
        bubbles: true,
      }),
    );

    expect(callback).not.toHaveBeenCalled();

    input.removeEventListener('keydown', handler);
    input.remove();
  });

  it('runs matching shortcuts outside editable fields', () => {
    const callback = vi.fn();
    const handler = createShortcutHandler([
      {
        id: 'play-pause',
        keys: ['space', 'k'],
        handler: callback,
      },
    ]);

    document.body.addEventListener('keydown', handler);
    document.body.dispatchEvent(
      new KeyboardEvent('keydown', {
        key: ' ',
        bubbles: true,
      }),
    );

    expect(callback).toHaveBeenCalledTimes(1);

    document.body.removeEventListener('keydown', handler);
  });
});