feat(front-end): new logo edited

frontend/src/server-routing.ts

@@ -0,0 +1,103 @@
+const SUPPORTED_LANG_LIST = ['it', 'en', 'de', 'fr'] as const;
+
+export const SUPPORTED_LANGS = new Set<string>(SUPPORTED_LANG_LIST);
+export const DEFAULT_LANG = 'it';
+
+export function resolvePublicRedirectTarget(pathname: string): string | null {
+  const normalizedPath = normalizePathname(pathname);
+  if (shouldBypassRedirect(normalizedPath)) {
+    return null;
+  }
+
+  const trimmedPath =
+    normalizedPath === '/' ? '/' : normalizedPath.replace(/\/+$/, '');
+  const segments = splitSegments(trimmedPath);
+  if (segments.length === 0) {
+    return null;
+  }
+
+  const firstSegment = segments[0].toLowerCase();
+  if (SUPPORTED_LANGS.has(firstSegment)) {
+    const canonicalSegments = [firstSegment, ...segments.slice(1)];
+    const canonicalPath = `/${canonicalSegments.join('/')}`;
+    const directRedirect = resolveCanonicalRedirect(canonicalSegments);
+    if (directRedirect) {
+      return directRedirect;
+    }
+    return canonicalPath === normalizedPath ? null : canonicalPath;
+  }
+
+  const effectiveSegments = looksLikeLangToken(firstSegment)
+    ? segments.slice(1)
+    : segments;
+  if (effectiveSegments.length === 0) {
+    return `/${DEFAULT_LANG}`;
+  }
+
+  const directRedirect = resolveCanonicalRedirect([
+    DEFAULT_LANG,
+    ...effectiveSegments,
+  ]);
+  if (directRedirect) {
+    return directRedirect;
+  }
+
+  return `/${[DEFAULT_LANG, ...effectiveSegments].join('/')}`;
+}
+
+function resolveCanonicalRedirect(segments: string[]): string | null {
+  const [lang, section, thirdSegment, fourthSegment] = segments;
+
+  if (section?.toLowerCase() === 'calculator' && segments.length === 2) {
+    return `/${lang}/calculator/basic`;
+  }
+
+  if (
+    section?.toLowerCase() === 'shop' &&
+    segments.length === 4 &&
+    thirdSegment?.toLowerCase() !== 'p' &&
+    fourthSegment
+  ) {
+    return `/${lang}/shop/p/${fourthSegment}`;
+  }
+
+  return null;
+}
+
+function normalizePathname(pathname: string): string {
+  const rawValue = String(pathname || '/').trim();
+  if (!rawValue) {
+    return '/';
+  }
+
+  return rawValue.startsWith('/') ? rawValue : `/${rawValue}`;
+}
+
+function shouldBypassRedirect(pathname: string): boolean {
+  if (
+    pathname.startsWith('/api/') ||
+    pathname.startsWith('/assets/') ||
+    pathname.startsWith('/media/')
+  ) {
+    return true;
+  }
+
+  if (
+    pathname === '/robots.txt' ||
+    pathname === '/sitemap.xml' ||
+    pathname === '/sitemap-static.xml' ||
+    pathname === '/favicon.ico'
+  ) {
+    return true;
+  }
+
+  return /\.[^/]+$/.test(pathname);
+}
+
+function splitSegments(pathname: string): string[] {
+  return pathname.split('/').filter(Boolean);
+}
+
+function looksLikeLangToken(segment: string | null | undefined): boolean {
+  return typeof segment === 'string' && /^[a-z]{2}(?:-[a-z]{2})?$/i.test(segment);
+}