Update carousels, card hover, and IranBay branding.

Co-authored-by: Cursor <cursoragent@cursor.com>

lib/host.ts

@@ -0,0 +1,131 @@
+import type { DashboardType } from "@/types/auth";
+
+export type HostApp = "admin" | "customer" | "business";
+
+const BUSINESS_PREFIX = "business.";
+const CUSTOMER_PREFIX = "customer.";
+
+/** Host without port, lowercased. */
+export function normalizeHost(hostHeader: string | null | undefined): string {
+  if (!hostHeader) return "";
+  return hostHeader.split(":")[0]?.toLowerCase() ?? "";
+}
+
+export function isBusinessHost(hostHeader: string | null | undefined): boolean {
+  const host = normalizeHost(hostHeader);
+  if (!host) return false;
+  if (host === "business.localhost") return true;
+  return host.startsWith(BUSINESS_PREFIX);
+}
+
+export function isCustomerHost(hostHeader: string | null | undefined): boolean {
+  const host = normalizeHost(hostHeader);
+  if (!host) return false;
+  if (host === "customer.localhost") return true;
+  return host.startsWith(CUSTOMER_PREFIX);
+}
+
+export function hostAppFor(hostHeader: string | null | undefined): HostApp {
+  if (isBusinessHost(hostHeader)) return "business";
+  if (isCustomerHost(hostHeader)) return "customer";
+  return "admin";
+}
+
+/** @deprecated Prefer hostAppFor + access checks. */
+export function expectedDashboardForHost(
+  hostHeader: string | null | undefined,
+): DashboardType {
+  const app = hostAppFor(hostHeader);
+  if (app === "business") return "business";
+  if (app === "customer") return "customer";
+  return "super_admin";
+}
+
+function originFromEnv(
+  envValue: string | undefined,
+  fallbackLocal: string,
+  fallbackProd: (root: string) => string,
+): string {
+  const fromEnv = envValue?.replace(/\/$/, "");
+  if (fromEnv) {
+    if (fromEnv.startsWith("http://") || fromEnv.startsWith("https://")) {
+      return fromEnv;
+    }
+    const protocol =
+      fromEnv.includes("localhost") || fromEnv.startsWith("127.")
+        ? "http"
+        : "https";
+    return `${protocol}://${fromEnv}`;
+  }
+
+  const root = process.env.NEXT_PUBLIC_ROOT_DOMAIN || "localhost";
+  if (root === "localhost" || root.startsWith("127.")) {
+    return fallbackLocal;
+  }
+  return fallbackProd(root);
+}
+
+/** Absolute origin for the business dashboard (no trailing slash). */
+export function getBusinessDashboardOrigin(): string {
+  return originFromEnv(
+    process.env.NEXT_PUBLIC_BUSINESS_DASHBOARD_HOST,
+    "http://business.localhost:3002",
+    (root) => `https://business.${root}`,
+  );
+}
+
+/** Absolute origin for the customer dashboard. */
+export function getCustomerDashboardOrigin(): string {
+  return originFromEnv(
+    process.env.NEXT_PUBLIC_CUSTOMER_DASHBOARD_HOST,
+    "http://customer.localhost:3002",
+    (root) => `https://customer.${root}`,
+  );
+}
+
+/** Absolute origin for the superadmin dashboard. */
+export function getAdminDashboardOrigin(): string {
+  return originFromEnv(
+    process.env.NEXT_PUBLIC_ADMIN_DASHBOARD_HOST,
+    "http://localhost:3002",
+    (root) => `https://admin.${root}`,
+  );
+}
+
+/** Map public business URL path → internal /business/* path. */
+export function rewriteBusinessPath(pathname: string): string | null {
+  if (pathname === "/") return "/business";
+  if (pathname === "/login") return "/login";
+  if (pathname === "/forgot-password") return "/forgot-password";
+  if (pathname === "/auth/handoff") return "/auth/handoff";
+
+  const known = [
+    "/profile",
+    "/products",
+    "/blog",
+    "/portfolios",
+    "/gallery",
+  ] as const;
+
+  for (const path of known) {
+    if (pathname === path || pathname.startsWith(`${path}/`)) {
+      return `/business${pathname}`;
+    }
+  }
+
+  return null;
+}
+
+/** Map public customer URL path → internal /customer/* path. */
+export function rewriteCustomerPath(pathname: string): string | null {
+  if (pathname === "/") return "/customer";
+  if (pathname === "/login") return "/login";
+  if (pathname === "/forgot-password") return "/forgot-password";
+  if (pathname === "/auth/handoff") return "/auth/handoff";
+
+  if (pathname === "/profile" || pathname.startsWith("/profile/")) {
+    return `/customer${pathname}`;
+  }
+
+  return null;
+}