From 9fa0602aa82cb77dd26cb2f8d285e6792aaf0567 Mon Sep 17 00:00:00 2001
From: Anderson Martins <anderson@publishpress.com>
Date: Fri, 28 Apr 2023 14:20:59 -0300
Subject: [PATCH] Add the autoloader

---
 src/autoload.php           | 15 +++++++++++
 src/classes/Autoloader.php | 51 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 66 insertions(+)
 create mode 100644 src/autoload.php
 create mode 100644 src/classes/Autoloader.php

diff --git a/src/autoload.php b/src/autoload.php
new file mode 100644
index 0000000..802dc55
--- /dev/null
+++ b/src/autoload.php
@@ -0,0 +1,15 @@
+<?php
+
+use PublishPress\WordPressEDDLicense\Autoloader;
+
+add_action('plugins_loaded', function () {
+    if (! defined('PUBLISHPRESS_WORDPRESS_EDD_LICENSE_LOADED')) {
+        if (! class_exists('PublishPress\\WordPressEDDLicense\\Autoloader')) {
+            require_once __DIR__ . '/classes/Autoloader.php';
+        }
+
+        Autoloader::register();
+
+        define('PUBLISHPRESS_WORDPRESS_EDD_LICENSE_LOADED', true);
+    }
+}, -125, 0);
diff --git a/src/classes/Autoloader.php b/src/classes/Autoloader.php
new file mode 100644
index 0000000..6dd8d54
--- /dev/null
+++ b/src/classes/Autoloader.php
@@ -0,0 +1,51 @@
+<?php
+
+namespace PublishPress\WordPressEDDLicense;
+
+class Autoloader
+{
+    /**
+     * Register the autoloader with spl_autoload_register
+     *
+     * @return void
+     */
+    public static function register()
+    {
+        spl_autoload_register(array(new self(), 'autoload'));
+    }
+
+    /**
+     * Autoload function that loads classes based on the namespace and class name
+     *
+     * @param string $class The fully-qualified class name
+     *
+     * @return void
+     */
+    public static function autoload($class)
+    {
+        // base directory for the namespace prefix
+        $base_dir = __DIR__ . '/';
+
+        // namespace prefix
+        $prefix = __NAMESPACE__ . '\\';
+
+        // does the class use the namespace prefix?
+        $len = strlen($prefix);
+
+        if (strncmp($prefix, $class, $len) !== 0) {
+            // no, move to the next registered autoloader
+            return;
+        }
+
+        // get the relative class name
+        $relative_class = substr($class, $len);
+
+        // replace the namespace prefix with the base directory, replace namespace separators with directory separators
+        $file = $base_dir . str_replace('\\', '/', $relative_class) . '.php';
+
+        // if the file exists, require it
+        if (file_exists($file)) {
+            require $file;
+        }
+    }
+}