feat: add Reverb realtime messaging

app/Http/Controllers/Api/Messaging/MessageSearchController.php

@@ -71,18 +71,12 @@ class MessageSearchController extends Controller
 
             $hits = collect($result->getHits() ?? []);
             $estimated = (int) ($result->getEstimatedTotalHits() ?? $hits->count());
-        } catch (\Throwable) {
-            $query = Message::query()
-                ->select('id')
-                ->whereNull('deleted_at')
-                ->whereIn('conversation_id', $allowedConversationIds)
-                ->when($conversationId !== null, fn ($q) => $q->where('conversation_id', $conversationId))
-                ->where('body', 'like', '%' . (string) $data['q'] . '%')
-                ->orderByDesc('created_at')
-                ->orderByDesc('id');
 
-            $estimated = (clone $query)->count();
-            $hits = $query->offset($offset)->limit($limit)->get()->map(fn ($row) => ['id' => (int) $row->id]);
+            if ($hits->isEmpty()) {
+                [$hits, $estimated] = $this->fallbackHits($allowedConversationIds, $conversationId, (string) $data['q'], $offset, $limit);
+            }
+        } catch (\Throwable) {
+            [$hits, $estimated] = $this->fallbackHits($allowedConversationIds, $conversationId, (string) $data['q'], $offset, $limit);
         }
         $messageIds = $hits->pluck('id')->map(fn ($id) => (int) $id)->all();
 
@@ -122,6 +116,23 @@ class MessageSearchController extends Controller
         ]);
     }
 
+    private function fallbackHits(array $allowedConversationIds, ?int $conversationId, string $queryString, int $offset, int $limit): array
+    {
+        $query = Message::query()
+            ->select('id')
+            ->whereNull('deleted_at')
+            ->whereIn('conversation_id', $allowedConversationIds)
+            ->when($conversationId !== null, fn ($builder) => $builder->where('conversation_id', $conversationId))
+            ->where('body', 'like', '%' . $queryString . '%')
+            ->orderByDesc('created_at')
+            ->orderByDesc('id');
+
+        $estimated = (clone $query)->count();
+        $hits = $query->offset($offset)->limit($limit)->get()->map(fn ($row) => ['id' => (int) $row->id]);
+
+        return [$hits, $estimated];
+    }
+
     public function rebuild(Request $request): JsonResponse
     {
         abort_unless($request->user()?->isAdmin(), 403, 'Admin access required.');