New URL redirection

docs/js/route.js

@@ -0,0 +1,47 @@
+let isRouting = false;
+
+function route() {
+    if (isRouting) return;
+    isRouting = true;
+
+    // Define route tables
+    const routeHandlers = {
+        'index.html': handleIndex,
+    };
+
+    const currentHash = window.location.hash.replace(/^#\/?/, '');
+    if (!currentHash || currentHash === "/") {
+        const browserLang = getBrowserLanguage();
+        window.location.href = `#/${browserLang}/index.html`;
+        setTimeout(() => {
+            isRouting = false;
+        }, 50);
+        return;
+    }
+
+    const match = currentHash.match(/^([^/]+)\/([^/]+\.html)(?:$|\?)/);
+    if (!match) {
+        handle404Page();
+        setTimeout(() => {
+            isRouting = false;
+        }, 50);
+        return;
+    }
+
+    const [_, lang, page] = match;
+    setHtmlLangAttribute(lang);
+
+    const handler = routeHandlers[page];
+    if (handler) {
+        handler(lang);
+    } else {
+        handle404Page();
+    }
+
+    setTimeout(() => {
+        isRouting = false;
+    }, 50);
+}
+
+window.addEventListener('hashchange', route);
+window.addEventListener('popstate', route);