feat: Implemented auto initializing

Author: seebeen

composer.json

@@ -36,7 +36,11 @@
   "autoload": {
     "psr-4": {
       "Oblak\\WP\\": "src"
-    }
+    },
+    "files": [
+      "src/Utils/oblak-wppu-init.php",
+      "src/Utils/oblak-wppu-utils.php"
+    ]
   },
   "config": {
     "allow-plugins": {

src/Updater/Update_Manager.php

@@ -1,6 +1,6 @@
 <?php
 /**
- * Package_Updater class file
+ * Update_Manager class file
  *
  * @package Package Updater
  */
@@ -10,13 +10,13 @@
 /**
  * Package Updater
  */
-class Package_Updater {
+class Update_Manager {
     /**
      * Class instance
      *
      * @var static
      */
-    protected static ?Package_Updater $instance = null;
+    protected static ?Update_Manager $instance = null;
 
     /**
      * Array holding hostnames and their handlers
@@ -40,6 +40,15 @@ public static function init(): void {
         static::$instance ??= new static();
     }
 
+    /**
+     * Checks if the singleton has been initialized
+     *
+     * @return bool
+     */
+    public static function initialized(): bool {
+        return null !== static::$instance;
+    }
+
     /**
      * Loads the update handlers
      */

src/Utils/oblak-wppu-init.php

@@ -0,0 +1,24 @@
+<?php
+/**
+ * Package updater initializer
+ *
+ * @package Package Updater
+ */
+
+use Oblak\WP\Updater\Update_Manager;
+
+if ( ! function_exists( 'wp_package_updater_init' ) && function_exists( 'add_action' ) ) {
+
+    /**
+     * Initializes the package updater
+     */
+    function wp_package_updater_init() {
+        Update_Manager::init();
+    }
+    add_action( 'plugins_loaded', 'wp_package_updater_init', 0, 0 );
+
+
+    if ( did_action( 'plugins_loaded' ) && ! doing_action( 'plugins_loaded' ) && ! Update_Manager::initialized() ) {
+        wp_package_updater_init();
+    }
+}

src/Utils/oblak-wppu-utils.php

@@ -0,0 +1,24 @@
+<?php
+/**
+ * Package updater utilities
+ *
+ * @package Package Updater
+ */
+
+use Oblak\WP\Updater\Interfaces\Package_Handler_Interface;
+
+/**
+ * Register a new package handler
+ *
+ * @param  string                    $hostname Hostname for the handler.
+ * @param  Package_Handler_Interface $handler  Handler instance.
+ */
+function wppu_register_handler( string $hostname, Package_Handler_Interface $handler ): void {
+    add_filter(
+        'wp_package_handlers',
+        fn( $h ) => array_merge(
+            $h,
+            array( $hostname => $handler )
+        )
+    );
+}