Fall back to Events when platform QR proxy returns 404.

Event pages like sales-webinar live on events.ladill.com, but ladl.link
only proxied to ladill.com/q/* — fix by retrying events.ladill.com when
the platform hub has no matching code.

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

.env.example

@@ -9,6 +9,7 @@ PLATFORM_DOMAIN=ladill.com
 AUTH_DOMAIN=auth.ladill.com
 ACCOUNT_DOMAIN=account.ladill.com
 LINK_PUBLIC_DOMAIN=ladl.link
+EVENTS_DOMAIN=events.ladill.com
 
 DB_CONNECTION=mysql
 DB_HOST=127.0.0.1

app/Services/Link/LinkPlatformProxy.php

@@ -27,8 +27,17 @@ class LinkPlatformProxy
             );
         }
 
-        $platform = rtrim((string) config('app.platform_url', 'https://ladill.com'), '/');
+        $platformResponse = $this->forwardToQrHub($request, $slug, $normalizedPath, $this->platformBaseUrl());
-        $target = $platform.'/q/'.$slug;
+        if ($platformResponse->getStatusCode() !== 404) {
+            return $platformResponse;
+        }
+
+        return $this->forwardToQrHub($request, $slug, $normalizedPath, $this->eventsBaseUrl());
+    }
+
+    private function forwardToQrHub(Request $request, string $slug, string $normalizedPath, string $hubBase): Response
+    {
+        $target = rtrim($hubBase, '/').'/q/'.$slug;
         if ($normalizedPath !== '') {
             $target .= '/'.$normalizedPath;
         }
@@ -98,6 +107,18 @@ class LinkPlatformProxy
         return $this->forward($request, $slug, substr($path, strlen($slugPrefix)));
     }
 
+    private function platformBaseUrl(): string
+    {
+        return rtrim((string) config('app.platform_url', 'https://ladill.com'), '/');
+    }
+
+    private function eventsBaseUrl(): string
+    {
+        $domain = (string) config('app.events_domain', 'events.ladill.com');
+
+        return 'https://'.$domain;
+    }
+
     private function transferBaseUrl(): string
     {
         $domain = (string) config('app.transfer_domain', 'transfer.ladill.com');
@@ -133,13 +154,13 @@ class LinkPlatformProxy
 
     private function rewriteLocation(string $location, string $slug): string
     {
-        $platform = rtrim((string) config('app.platform_url', 'https://ladill.com'), '/');
+        foreach ([$this->platformBaseUrl(), $this->eventsBaseUrl()] as $base) {
-        $prefix = $platform.'/q/'.$slug;
+            $prefix = $base.'/q/'.$slug;
+            if (str_starts_with($location, $prefix)) {
+                $suffix = substr($location, strlen($prefix));
 
-        if (str_starts_with($location, $prefix)) {
+                return LadillLink::url($slug).$suffix;
-            $suffix = substr($location, strlen($prefix));
+            }
-
-            return LadillLink::url($slug).$suffix;
         }
 
         $transfer = rtrim($this->transferBaseUrl(), '/').'/q/'.$slug;

config/app.php

@@ -130,6 +130,7 @@ return [
     'account_domain' => env('ACCOUNT_DOMAIN', 'account.'.(parse_url((string) env('PLATFORM_URL', 'https://ladill.com'), PHP_URL_HOST) ?: 'ladill.com')),
     'link_domain' => env('LINK_DOMAIN', parse_url((string) env('APP_URL', 'https://link.ladill.com'), PHP_URL_HOST) ?: 'link.ladill.com'),
     'transfer_domain' => env('TRANSFER_DOMAIN', 'transfer.ladill.com'),
+    'events_domain' => env('EVENTS_DOMAIN', 'events.ladill.com'),
     'servers_domain' => env('SERVERS_DOMAIN', 'servers.'.(parse_url((string) env('PLATFORM_URL', 'https://ladill.com'), PHP_URL_HOST) ?: 'ladill.com')),
     'domains_domain' => env('DOMAINS_DOMAIN', 'domains.'.(parse_url((string) env('PLATFORM_URL', 'https://ladill.com'), PHP_URL_HOST) ?: 'ladill.com')),
 

tests/Feature/LinkRedirectTest.php

@@ -95,4 +95,32 @@ class LinkRedirectTest extends TestCase
                 && $request->hasHeader('X-Ladill-Internal', '1');
         });
     }
+
+    public function test_event_qr_falls_back_to_events_app_when_platform_returns_404(): void
+    {
+        $user = $this->user();
+        ShortLink::create([
+            'user_id' => $user->id,
+            'slug' => 'sales-webinar',
+            'source_app' => 'events',
+            'source_kind' => 'qr',
+            'is_managed_here' => false,
+            'destination_url' => 'https://ladl.link/sales-webinar',
+            'is_active' => true,
+        ]);
+
+        Http::fake([
+            'https://ladill.com/q/sales-webinar' => Http::response('Not found', 404),
+            'https://events.ladill.com/q/sales-webinar' => Http::response('<html>Event page</html>', 200),
+        ]);
+
+        $this->get('https://ladl.link/sales-webinar')
+            ->assertOk()
+            ->assertSee('Event page');
+
+        Http::assertSent(function ($request) {
+            return $request->url() === 'https://events.ladill.com/q/sales-webinar'
+                && $request->hasHeader('X-Ladill-Internal', '1');
+        });
+    }
 }