updating language switcher links on route change; fixed prev/next blabla article links

web/themes/custom/materiotheme/assets/scripts/main.js

@@ -103,7 +103,6 @@ Vue.use(VueSimpleAccordion, {
     function initVi18n () {
       // i18n.locale = drupalDecoupled.lang_code
       // console.log('i18n.messages', i18n.messages)
-
       loadLanguageAsync(drupalDecoupled.lang_code)
         .then(() => {
           console.log('main.js language loaded')
@@ -164,6 +163,22 @@ Vue.use(VueSimpleAccordion, {
         }
         document.querySelector('body').classList.add(...classes)
 
+        // update block language selection
+        let links = document.querySelectorAll('#block-languageswitcher a.language-link')
+        let path = to.path.replace(/^\/\D{2,3}\//, '')
+            // remove language relative prefix from path classes (fr, en, etc)
+            .replace(/^\/\D{2,3}$/, '')
+
+        if(path !== ''){
+          path = '/'+path
+        }
+
+        links.forEach((link, i) => {
+          console.log("language link",path , link)
+          link.setAttribute('href', `/${link.getAttribute('hreflang')}${path}`)
+        });
+
+
         // trigger router
         next()
       })