classify videoload and Tag requests

api/RequestBase.php

@@ -1,24 +1,41 @@
 <?php
-require 'Database.php';
+require_once 'Database.php';
 
 abstract class RequestBase {
     private array $actions = array();
     protected mysqli $conn;
 
-    abstract function initIdentifiers();
+    /**
+     * add the action handlers in this abstract method
+     */
+    abstract function initHandlers();
 
-    function addIdentifier($action, $callback) {
+    /**
+     * adds a new action handler to the current api file
+     *
+     * @param $action string name of the action variable
+     * @param $callback Closure callback function to be called
+     */
+    function addActionHandler($action, $callback) {
         $this->actions[$action] = $callback;
     }
 
+    /**
+     * runs the correct handler
+     * should be called once within the api request
+     */
     function handleAction() {
         $this->conn = Database::getInstance()->getConnection();
 
         if (isset($_POST['action'])) {
-            $this->initIdentifiers();
+            $this->initHandlers();
 
             $action = $_POST['action'];
-            call_user_func($this->actions[$action]);
+
+            // call the right handler
+            $this->actions[$action]();
+        } else {
+            echo('{data:"error"}');
         }
     }
 }