Improve code quality to move from B to A grade

- Added proper type declarations to all properties and methods
- Fixed inconsistent variable naming (camelCase to snake_case)
- Improved path handling in admin class
- Added textdomain loading functionality
- Removed unused phpcs:ignore comment
- Implemented proper return type declarations

includes/Admin/class-admin.php

@@ -19,7 +19,7 @@ class Admin {
      *
      * @var Core
      */
-    private $core;
+    private Core $core;
 
     /**
      * Constructor.
@@ -46,7 +46,6 @@ class Admin {
 
 
      *
-	 * @phpcs:ignore Generic.CodeAnalysis.UnusedFunctionParameter.Found
      */
     public function enqueue_admin_assets(): void {
 
@@ -71,22 +70,22 @@ class Admin {
 		// @phpcs:enable
 
         // Get the plugin version.
-        $pluginVersion = $this->core->get_plugin_version();
+        $plugin_version = $this->core->get_plugin_version();
 
         // Enqueue styles.
         \wp_enqueue_style(
             'wpst-admin-styles',
-            \plugin_dir_url( __FILE__ ) . '../../admin/css/admin-styles.css',
+            plugin_dir_url( dirname( __DIR__ ) ) . 'admin/css/admin-styles.css',
             array(), // Dependencies.
-            $pluginVersion // Version.
+            $plugin_version // Version.
         );
 
         // Enqueue admin scripts.
         \wp_enqueue_script(
             'wpst-admin-script',
-            \plugin_dir_url( __FILE__ ) . '../../admin/js/admin-scripts.js',
+            plugin_dir_url( dirname( __DIR__ ) ) . 'admin/js/admin-scripts.js',
             array( 'jquery' ),
-            $pluginVersion, // Version.
+            $plugin_version, // Version.
             true
         );
 

includes/class-core.php

@@ -17,14 +17,14 @@ class Core {
      *
      * @var string
      */
-    private $version;
+    private string $version;
 
     /**
      * Constructor
      *
      * @param string $version Plugin version.
      */
-    public function __construct( $version = '' ) {
+    public function __construct( string $version = '' ) {
         // Initialize hooks.
         $this->version = $version;
     }
@@ -35,7 +35,7 @@ class Core {
      * @param string $content The content to filter.
      * @return string The filtered content.
      */
-    public function filter_content( $content ) {
+    public function filter_content( string $content ): string {
         return $content;
     }
 
@@ -44,7 +44,7 @@ class Core {
      *
      * @return string The plugin version.
      */
-    public function get_plugin_version() {
+    public function get_plugin_version(): string {
         return $this->version;
     }
 }

includes/class-plugin.php

@@ -19,14 +19,14 @@ class Plugin {
      *
      * @var Core
      */
-    private $core;
+    private Core $core;
 
     /**
      * Admin instance
      *
      * @var Admin
      */
-    private $admin;
+    private Admin $admin;
 
     /**
      * Plugin file path
@@ -40,7 +40,7 @@ class Plugin {
      *
      * @var string
      */
-    private $version;
+    private string $version;
 
     /**
      * Constructor
@@ -58,7 +58,23 @@ class Plugin {
     /**
      * Initialize the plugin
      */
-    public function init() {
-        // Initialization logic goes here.
+    public function init(): void {
+        // Register hooks and filters.
+        add_action('plugins_loaded', array($this, 'load_textdomain'));
+
+        // Initialize any other plugin functionality.
+    }
+
+    /**
+     * Load plugin textdomain.
+     *
+     * @return void
+     */
+    public function load_textdomain(): void {
+        load_plugin_textdomain(
+            'wp-plugin-starter-template',
+            false,
+            dirname(plugin_basename($this->pluginFile)) . '/languages/'
+        );
     }
 }