refactor: project cleanup + onboarding page

server/core/localization.js

@@ -0,0 +1,57 @@
+const _ = require('lodash')
+const dotize = require('dotize')
+const i18nBackend = require('i18next-node-fs-backend')
+const i18nMW = require('i18next-express-middleware')
+const i18next = require('i18next')
+const path = require('path')
+const Promise = require('bluebird')
+
+/* global wiki */
+
+module.exports = {
+  engine: null,
+  namespaces: [],
+  init() {
+    this.namespaces = wiki.data.localeNamespaces
+    this.engine = i18next
+    this.engine.use(i18nBackend).init({
+      load: 'languageOnly',
+      ns: this.namespaces,
+      defaultNS: 'common',
+      saveMissing: false,
+      preload: [wiki.config.site.lang],
+      lng: wiki.config.site.lang,
+      fallbackLng: 'en',
+      backend: {
+        loadPath: path.join(wiki.SERVERPATH, 'locales/{{lng}}/{{ns}}.yml')
+      }
+    })
+    return this
+  },
+  attachMiddleware (app) {
+    app.use(i18nMW.handle(this.engine))
+  },
+  async getByNamespace(locale, namespace) {
+    if (this.engine.hasResourceBundle(locale, namespace)) {
+      let data = this.engine.getResourceBundle(locale, namespace)
+      return _.map(dotize.convert(data), (value, key) => {
+        return {
+          key,
+          value
+        }
+      })
+    } else {
+      throw new Error('Invalid locale or namespace')
+    }
+  },
+  async loadLocale(locale) {
+    return Promise.fromCallback(cb => {
+      return this.engine.loadLanguages(locale, cb)
+    })
+  },
+  async setCurrentLocale(locale) {
+    return Promise.fromCallback(cb => {
+      return this.engine.changeLanguage(locale, cb)
+    })
+  }
+}