Draft: Resolve "Redesign audit class"

Related to #78

plugins/tasks/Audit.php

@@ -4,11 +4,12 @@ class Audit implements EndpointInterface
 {
 
   private TaskGateway $gateway;
-  private string $errorMessage = 'No audit requiring removal';
+  private string $errorMessage;
 
   public function __construct (TaskGateway $gateway)
   {
     $this->gateway = $gateway;
+    $this->errorMessage = 'No audit requiring removal';
   }
 
   /**
@@ -48,7 +49,7 @@ class Audit implements EndpointInterface
     $result = $this->processAuditDeletion($this->gateway->getObjectTypeTask('Audit'));
 
     // Recursive function to filter out empty arrays at any depth
-    $filteredResults = Utils::recursiveArrayFilter($result);
+    $filteredResults = $this->recursiveArrayFilter($result);
 
     if (empty($filteredResults)) {
         return [$this->errorMessage];
@@ -80,7 +81,7 @@ class Audit implements EndpointInterface
    * @return array
    * @throws Exception
    */
-  private function processScheduledTask (array $task): array
+  private function processScheduledTask(array $task): array
   {
       // Retrieve data from the main task.
       $auditMainTask = $this->getAuditMainTask($task['fdtasksgranularmaster'][0]);
@@ -126,4 +127,27 @@ class Audit implements EndpointInterface
 
     return $audit;
   }
+
+  /**
+   * @param array $array
+   * @return array
+   * Note : Recursively filters out empty values and arrays at any depth.
+   */
+  private function recursiveArrayFilter (array $array): array
+  {
+    // First filter the array for non-empty elements
+    $filtered = array_filter($array, function ($item) {
+      if (is_array($item)) {
+        // Recursively filter the sub-array
+        $item = $this->recursiveArrayFilter($item);
+        // Only retain non-empty arrays
+        return !empty($item);
+      } else {
+        // Retain non-empty scalar values
+        return !empty($item);
+      }
+    });
+
+    return $filtered;
+  }
 }
\ No newline at end of file