implement powerful viewer count system

app/Services/Streaming/ViewerCountStore.php

@@ -0,0 +1,44 @@
+<?php
+
+namespace App\Services\Streaming;
+
+use App\Models\Channel;
+use Illuminate\Contracts\Cache\Repository;
+use Illuminate\Support\Facades\Cache;
+
+class ViewerCountStore
+{
+    public function current(Channel $channel): int
+    {
+        $cached = $this->cache()->get($this->cacheKey($channel));
+
+        return is_numeric($cached) ? max(0, (int) $cached) : max(0, (int) $channel->viewer_count);
+    }
+
+    public function put(Channel $channel, int $count): void
+    {
+        $this->cache()->put($this->cacheKey($channel), max(0, $count), $this->ttl());
+    }
+
+    public function forget(Channel $channel): void
+    {
+        $this->cache()->forget($this->cacheKey($channel));
+    }
+
+    private function cache(): Repository
+    {
+        $store = (string) config('streaming.viewer_count_cache_store', config('cache.default'));
+
+        return $store !== '' ? Cache::store($store) : Cache::store();
+    }
+
+    private function cacheKey(Channel $channel): string
+    {
+        return "streaming:viewers:channels:{$channel->id}";
+    }
+
+    private function ttl(): int
+    {
+        return max(1, (int) config('streaming.viewer_count_ttl', 10));
+    }
+}