feat: redirect to next param on authentication

apps/web/src/components/AuthForm.tsx

@@ -1,4 +1,5 @@
 import type { SocialProvider } from "better-auth/social-providers";
+import { useSearchParams } from "next/navigation";
 import { zodResolver } from "@hookform/resolvers/zod";
 import { t } from "@lingui/core/macro";
 import { Trans } from "@lingui/react/macro";
@@ -160,6 +161,9 @@ export function Auth({ setIsMagicLinkSent, isSignUp }: AuthProps) {
   const { showPopup } = usePopup();
   const oidcProviderName = "OIDC";
 
+  const redirect = useSearchParams().get("next");
+  const callbackURL = redirect ?? "/boards";
+
   // Safely get environment variables on client side to avoid hydration mismatch
   useEffect(() => {
     const credentialsAllowed =
@@ -195,7 +199,7 @@ export function Auth({ setIsMagicLinkSent, isSignUp }: AuthProps) {
             name,
             email,
             password,
-            callbackURL: "/boards",
+            callbackURL,
           },
           {
             onSuccess: () =>
@@ -212,7 +216,7 @@ export function Auth({ setIsMagicLinkSent, isSignUp }: AuthProps) {
           {
             email,
             password,
-            callbackURL: "/boards",
+            callbackURL,
           },
           {
             onSuccess: () =>
@@ -229,7 +233,7 @@ export function Auth({ setIsMagicLinkSent, isSignUp }: AuthProps) {
       await authClient.signIn.magicLink(
         {
           email,
-          callbackURL: "/boards",
+          callbackURL,
         },
         {
           onSuccess: () => setIsMagicLinkSent(true, email),
@@ -250,14 +254,14 @@ export function Auth({ setIsMagicLinkSent, isSignUp }: AuthProps) {
       // Use oauth2 signin for OIDC provider
       const result = await authClient.signIn.oauth2({
         providerId: "oidc",
-        callbackURL: "/boards",
+        callbackURL,
       });
       error = result.error;
     } else {
       // Use social signin for traditional social providers
       const result = await authClient.signIn.social({
         provider,
-        callbackURL: "/boards",
+        callbackURL,
       });
       error = result.error;
     }

apps/web/src/views/auth/login/index.tsx

@@ -1,5 +1,5 @@
 import Link from "next/link";
-import { useRouter } from "next/navigation";
+import { useRouter, useSearchParams } from "next/navigation";
 import { t } from "@lingui/core/macro";
 import { Trans } from "@lingui/react/macro";
 import { env } from "next-runtime-env";
@@ -17,6 +17,8 @@ export default function LoginPage() {
   const [isMagicLinkSent, setIsMagicLinkSent] = useState<boolean>(false);
   const [magicLinkRecipient, setMagicLinkRecipient] = useState<string>("");
 
+  const redirect = useSearchParams().get("next");
+
   const handleMagicLinkSent = (value: boolean, recipient: string) => {
     setIsMagicLinkSent(value);
     setMagicLinkRecipient(recipient);
@@ -61,7 +63,11 @@ export default function LoginPage() {
                 <Trans>
                   Don't have an account?{" "}
                   <span className="underline">
-                    <Link href="/signup">Sign up</Link>
+                    <Link
+                      href={redirect ? `/signup?next=${redirect}` : "/signup"}
+                    >
+                      Sign up
+                    </Link>
                   </span>
                 </Trans>
               </p>

apps/web/src/views/auth/signup/index.tsx

@@ -1,5 +1,5 @@
 import Link from "next/link";
-import { useRouter } from "next/navigation";
+import { useRouter, useSearchParams } from "next/navigation";
 import { t } from "@lingui/core/macro";
 import { Trans } from "@lingui/react/macro";
 import { env } from "next-runtime-env";
@@ -17,6 +17,8 @@ export default function SignUpPage() {
   const [isMagicLinkSent, setIsMagicLinkSent] = useState<boolean>(false);
   const [magicLinkRecipient, setMagicLinkRecipient] = useState<string>("");
 
+  const redirect = useSearchParams().get("next");
+
   const { data } = authClient.useSession();
 
   if (data?.user.id) router.push("/boards");
@@ -86,7 +88,9 @@ export default function SignUpPage() {
               <Trans>
                 Already have an account?{" "}
                 <span className="underline">
-                  <Link href="/login">Sign in</Link>
+                  <Link href={redirect ? `/login?next=${redirect}` : "/login"}>
+                    Sign in
+                  </Link>
                 </span>
               </Trans>
             </p>