From edf3f42ae1d70f887f9281339ed737662a3b48e4 Mon Sep 17 00:00:00 2001
From: Joao Gilberto Magalhaes <joao@byjg.com.br>
Date: Sat, 20 Dec 2025 15:00:48 -0500
Subject: [PATCH] Optimize `clear()` method in `RedisCacheEngine` using SCAN
 for improved performance; add Docker service run configuration for tests.

---
 .run/Services for Test.run.xml | 10 ++++++++++
 src/Psr16/RedisCacheEngine.php | 11 ++++++-----
 2 files changed, 16 insertions(+), 5 deletions(-)
 create mode 100644 .run/Services for Test.run.xml

diff --git a/.run/Services for Test.run.xml b/.run/Services for Test.run.xml
new file mode 100644
index 0000000..d8e1671
--- /dev/null
+++ b/.run/Services for Test.run.xml	
@@ -0,0 +1,10 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="Services for Test" type="docker-deploy" factoryName="docker-compose.yml" server-name="Docker">
+    <deployment type="docker-compose.yml">
+      <settings>
+        <option name="sourceFilePath" value="docker-compose.yml" />
+      </settings>
+    </deployment>
+    <method v="2" />
+  </configuration>
+</component>
\ No newline at end of file
diff --git a/src/Psr16/RedisCacheEngine.php b/src/Psr16/RedisCacheEngine.php
index e5d78b6..20b9d26 100644
--- a/src/Psr16/RedisCacheEngine.php
+++ b/src/Psr16/RedisCacheEngine.php
@@ -159,12 +159,13 @@ public function delete(string $key): bool
     #[\Override]
     public function clear(): bool
     {
-        $keys = $this->redis->keys('cache:*');
-        foreach ($keys as $key) {
-            if (preg_match('/^cache:(?<key>.*)/', $key, $matches)) {
-                $this->delete($matches['key']);
+        $iterator = null;
+        do {
+            $keys = $this->redis->scan($iterator, 'cache:*');
+            foreach($keys as $key) {
+                $this->delete(substr($key, 6));
             }
-        }
+        } while($iterator !== 0);
         return true;
     }