"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.importMessages = importMessages;
exports.importLocaleData = importLocaleData;
exports.importIntl = importIntl;

var _interopRequireWildcard2 = _interopRequireDefault(require("@babel/runtime/helpers/interopRequireWildcard"));

var _utils = require("./utils");

/**
 * Dynamic import of a translation file, typically a JSON file
 * You have to define an alias (`resolve.alias`) in your webpack configuration
 * i.e.
 * {
 *   resolve: {
 *     alias: {
 *       i18n: path.resolve('./i18n')
 *     }
 *   },
 *   //...
 * },
 * @param {String} locale a locale, i.e. `en`
 * @returns {Object} imported module, default export in `default` field
 */
async function importMessages(locale) {
  try {
    const normalizedLocale = (0, _utils.normalizeLocale)(locale);
    const importedModule = await Promise.resolve(`i18n/${normalizedLocale}`).then(s => (0, _interopRequireWildcard2.default)(require(s)));
    return importedModule.default;
  } catch (error) {
    // if the requested locale is not present, return an empty object
    return {};
  }
}
/**
 * Dynamic import of `react-intl`'s locale data
 *
 * @see https://github.com/yahoo/react-intl/wiki#locale-data-in-browsers
 * @param {String} locale a locale, i.e. `en`
 * @returns {import('react-intl').LocaleData} locale data object
 */


async function importLocaleData(locale) {
  const normalizedLocale = (0, _utils.normalizeLocale)(locale);
  const [language] = normalizedLocale.split('-');
  const importedModule = await Promise.resolve(`react-intl/locale-data/${language}`).then(s => (0, _interopRequireWildcard2.default)(require(s))); // react-intl's locale data provides additional specific locales, i.e. `en-GB`: we'll pick the base locale data

  const [specificLocaleData] = importedModule.default.filter(localeData => localeData.locale === normalizedLocale);
  const defaultLocaleData = importedModule.default.filter(localeData => localeData.locale === language);
  return specificLocaleData || defaultLocaleData;
}
/**
 * Dynamic import of the `Intl` polyfill, but only if there is no support
 */


async function importIntl() {
  if (!global.Intl) {
    await Promise.resolve().then(() => (0, _interopRequireWildcard2.default)(require('intl')));
  }
}
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