60 lines
2.7 KiB
JavaScript
60 lines
2.7 KiB
JavaScript
/*
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Copyright 2022 DigitalOcean
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This code is licensed under the MIT License.
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You may obtain a copy of the License at
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https://github.com/digitalocean/nginxconfig.io/blob/master/LICENSE or https://mit-license.org/
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and / or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions :
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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import { fromSep } from './language_packs';
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export default availablePacks => {
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if (typeof window === 'object' && typeof window.navigator === 'object') {
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const userLocales = new Set();
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// Get the user languages
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if (Array.isArray(window.navigator.languages))
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window.navigator.languages.forEach(locale => userLocales.add(locale));
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if (typeof window.navigator.language === 'string')
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userLocales.add(window.navigator.language);
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if (Intl && 'DateTimeFormat' in Intl)
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if (Intl.DateTimeFormat().resolvedOptions().locale !== 'und')
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userLocales.add(Intl.DateTimeFormat().resolvedOptions().locale);
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// Try to find an exact region/language match
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const exactMatch = [...userLocales.values()].find(locale => availablePacks.includes(fromSep(locale, '-')));
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if (exactMatch) return fromSep(exactMatch, '-');
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// Build a map of languages to pack
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const i18nPackLanguages = availablePacks.reduce((map, pack) => {
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const lang = pack.match(/^[a-z]+/)[0];
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if (!(lang in map)) map[lang] = pack;
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return map;
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}, {});
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// Try to match a user language to a pack language
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const langMatch = [...userLocales.values()].find(x => Object.keys(i18nPackLanguages).includes(x.split('-')[0].toLowerCase()));
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if (langMatch) return i18nPackLanguages[langMatch.split('-')[0].toLowerCase()];
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return false;
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}
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};
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