added wss tools 7

app/Services/PriceStreamService.php

@@ -100,6 +100,15 @@ class PriceStreamService
 
         $key = $this->inboxKey();
         $inbox = Cache::get($key, ['seq' => 0, 'events' => []]);
+        $events = is_array($inbox['events'] ?? null) ? $inbox['events'] : [];
+        $lastEvent = $events !== [] ? $events[array_key_last($events)] : null;
+
+        if (is_array($lastEvent)
+            && ($lastEvent['event'] ?? null) === $event
+            && $this->eventDataHash($event, $lastEvent['data'] ?? null) === $this->eventDataHash($event, $data)) {
+            return;
+        }
+
         $inbox['seq'] = (int) ($inbox['seq'] ?? 0) + 1;
         $inbox['events'][] = [
             'id' => $inbox['seq'],
@@ -119,6 +128,41 @@ class PriceStreamService
         return self::INBOX_PREFIX.'global';
     }
 
+    /**
+     * @param array<string, mixed>|array<int, mixed> $data
+     */
+    private function eventDataHash(string $event, mixed $data): string
+    {
+        if (! is_array($data)) {
+            return md5('');
+        }
+
+        if ($event === 'last') {
+            return md5(json_encode(PriceBroadcastService::lastPriceIdentity($data), JSON_UNESCAPED_UNICODE));
+        }
+
+        if ($event === 'list') {
+            $identity = [];
+            foreach ($data as $product) {
+                if (! is_array($product)) {
+                    continue;
+                }
+
+                $identity[] = [
+                    'id' => (int) ($product['id'] ?? 0),
+                    'price' => (int) ($product['price'] ?? 0),
+                    'price_profit' => (int) ($product['price_profit'] ?? 0),
+                    'show' => (bool) ($product['show'] ?? true),
+                    'active' => (bool) ($product['active'] ?? true),
+                ];
+            }
+
+            return md5(json_encode($identity, JSON_UNESCAPED_UNICODE));
+        }
+
+        return md5(json_encode($data, JSON_UNESCAPED_UNICODE));
+    }
+
     private function normalizeHost(string $host): string
     {
         $host = strtolower(trim($host));