termscp site

site/js/core.js

@@ -0,0 +1,35 @@
+/**
+ * @description return navigator language. If language is not supported default will be returned
+ * @returns {string}
+ */
+
+function getNavigatorLanguage() {
+  let lang = navigator.language;
+  // Complete lang
+  if (languageSupported(lang)) {
+    return lang;
+  }
+  // Reduced lang
+  lang = lang.split(/[-_]/)[0] || "en";
+  if (!languageSupported(lang)) {
+    return "en";
+  }
+  return lang;
+}
+
+/**
+ * @description check whether provided language is supported by the website
+ * @param {string} lang
+ * @returns {boolean}
+ */
+function languageSupported(lang) {
+  return ["en", "zh-CN", "it", "fr", "es"].includes(lang);
+}
+
+/**
+ * @description update website language
+ * @param {string} lang
+ */
+function setSiteLanguage(lang) {
+  setLanguage(lang);
+}