src/App.js


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import React from 'react';
import { useTranslation } from 'react-i18next';
import logo from '../src/images/wifi.png';
import { Card } from './components/Card';
import './style.css';

/* List of languages that require RTL direction (alphabetic order). */
const RTL_LANGUAGES = ['ar', 'fa-IR'];

function App() {
  const html = document.querySelector('html');
  const { t, i18n } = useTranslation();

  const changeLanguage = (language) => {
    html.style.direction = RTL_LANGUAGES.includes(language) ? 'rtl' : 'ltr';
    i18n.changeLanguage(language);
  };

  /* handle the edge case of the initial render requiring RTL direction */
  if (RTL_LANGUAGES.includes(i18n.language)) {
    html.style.direction = 'rtl';
  }

  return (
    <div className="App">
      <h1>
        <img alt="icon" src={logo} width="32" height="32" />
        &nbsp; {t('title')}
      </h1>

      <div>
        <label>{t('select')}</label>
        <select
          value={i18n.language}
          onChange={(e) => changeLanguage(e.target.value)}
        >
          <option value="ar">Arabic - العربية</option>
          <option value="ca">Catalan - Català</option>
          <option value="zh-HK">Chinese Hong Kong - 简体中文</option>
          <option value="zh-CN">Chinese Simplified - 简体中文</option>
          <option value="nl-NL">Dutch - Nederlands</option>
          <option value="en">English</option>
          <option value="fr-FR">French - Français</option>
          <option value="de-DE">German - Deutsch</option>
          <option value="hi-IN">Hindi - हिन्दी</option>
          <option value="id-ID">Indonesian</option>
          <option value="it-IT">Italian</option>
          <option value="ja">Japanese - 日本語</option>
          <option value="oc">Occitan</option>
          <option value="fa-IR">Persian Iran - فارسی</option>
          <option value="pl-PL">Polish - Polski</option>
          <option value="pt">Portuguese - Português</option>
          <option value="pt-BR">Portuguese - Português brasileiro</option>
          <option value="ru-RU">Russian - Русский</option>
          <option value="es">Spanish - Español</option>
          <option value="tr-TR">Turkish - Türkçe</option>
          <option value="uk-UA">Ukrainian - Українська</option>
        </select>
      </div>

      <p className="tag">{t('desc.use')}</p>

      <p className="tag">
        {t('desc.privacy')}{' '}
        <a href="https://github.com/bndw/wifi-card">{t('desc.source')}</a>.
      </p>

      <Card direction={RTL_LANGUAGES.includes(i18n.language) ? 'rtl' : 'ltr'} />
    </div>
  );
}

export default App;