i18n - extension extraction

extensions/ohif-i18n/src/i18n.js

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+import i18n from 'i18next';
+import { initReactI18next } from 'react-i18next';
+
+const currentLanguage = process.env.APP_LANG || 'en-US';
+
+function getDefaultLanguage() {
+  const mainLanguage = currentLanguage.match(/(.*.)(-)/);
+  return mainLanguage !== null ? mainLanguage[1] : null;
+}
+
+function getCleanKeyForNameSpaces(key) {
+  const regexKeyCleaner = new RegExp(
+    `^(\\.\\/${currentLanguage}\\/)(.*.)(\\.json)$`
+  );
+  const cleanedKey = key.match(regexKeyCleaner);
+  return cleanedKey !== null ? cleanedKey[2] : null;
+}
+
+function getCleanKeyForDefaults(key) {
+  const regexKeyCleaner = new RegExp(
+    `^(\\.\\/${getDefaultLanguage()}\\/)(.*.)(\\.json)$`
+  );
+  const cleanedKey = key.match(regexKeyCleaner);
+  return cleanedKey !== null ? cleanedKey[2] : null;
+}
+
+function getLocales() {
+  const currentLangList = {};
+  const defaultLangList = {};
+  const locales = {};
+  const context = require.context(`./locales`, true, /\.json$/);
+
+  context.keys().forEach(key => {
+    const isTheSameOfCurrentLang = key.indexOf(currentLanguage) >= 0;
+    const isADefaultLang = key.indexOf(`${getDefaultLanguage()}/`) >= 0;
+
+    if (isTheSameOfCurrentLang) {
+      currentLangList[getCleanKeyForNameSpaces(key)] = context(key);
+    }
+
+    if (isADefaultLang) {
+      defaultLangList[getCleanKeyForDefaults(key)] = context(key);
+    }
+  });
+
+  locales[currentLanguage] = { ...currentLangList };
+  locales[getDefaultLanguage()] = { ...defaultLangList };
+  return locales;
+}
+
+// console.log(getLocales(), currentLanguage, getDefaultLanguage());
+
+i18n.use(initReactI18next).init({
+  resources: getLocales(),
+  fallbackLng: getDefaultLanguage(),
+  lng: currentLanguage,
+  debug: true,
+
+  // have a common namespace used around the full app
+  keySeparator: false, // uses content as keys
+  interpolation: {
+    escapeValue: false,
+  },
+
+  react: {
+    wait: true,
+  },
+});
+
+export default i18n;

extensions/ohif-i18n/src/index.js

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+export { default } from './i18n';

extensions/ohif-i18n/src/locales/en-UK/Header.json

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+{
+  "header_test": "Joao Grandao"
+}

extensions/ohif-i18n/src/locales/en-UK/common.json

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+{
+  "common": {
+    "Welcome to React": "Welcome to React and react-i18next",
+    "welcomeMsg": "welcome"
+  }
+}

extensions/ohif-i18n/src/locales/en-US/Header.json

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+{
+  "header_test": "$t(common:test)"
+}

extensions/ohif-i18n/src/locales/en-US/common.json

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+{
+  "tests___": "test common"
+}

extensions/ohif-i18n/src/locales/en/Header.json

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+{
+  "header_test": "$t(common:test)"
+}

extensions/ohif-i18n/src/locales/en/common.json

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+{
+  "Welcome to React": "Welcome to React and react-i18next",
+  "welcomeMsg": "welcome",
+  "test": "Lunch time"
+}