move classes to Statify namespace and configure PSR-4 autoloader

Remove the "Statify_" prefix from classnames, so Statify_Frontend is now
located at Statify\Frontend.
Disable the corresponding PHPCS rule as it conflicts with PSR-4 standard.
Remove the custom autoloader function.

composer.json

@@ -88,6 +88,11 @@
       "vendor/npm-asset/chartist-plugin-tooltips-updated/dist/chartist-plugin-tooltip.min.js": "js/"
     }
   },
+  "autoload": {
+    "psr-4": {
+      "Statify\\": "inc/"
+    }
+  },
   "config": {
     "allow-plugins": {
       "dealerdirect/phpcodesniffer-composer-installer": true

inc/class-statify-api.php → inc/Api.php

@@ -1,22 +1,27 @@
 <?php
 /**
- * Statify: Statify_API class
+ * Statify: API class
  *
  * This file contains methods for REST API integration.
  *
  * @package Statify
  * @since   1.9
  */
 
+namespace Statify;
+
+use WP_REST_Response;
+use WP_REST_Server;
+
 // Quit if accessed outside WP context.
 defined( 'ABSPATH' ) || exit;
 
 /**
  * Statify REST API integration.
  *
- * @since 1.9
+ * @since 2.0.0
  */
-class Statify_Api extends Statify {
+class Api extends Statify {
 	/**
 	 * REST endpoints
 	 *
@@ -122,7 +127,7 @@ public static function track_visit( $request ) {
 	public static function get_stats( $request ) {
 		$refresh = '1' === $request->get_param( 'refresh' );
 
-		$stats  = Statify_Dashboard::get_stats( $refresh );
+		$stats  = Dashboard::get_stats( $refresh );
 
 		$visits          = $stats['visits'];
 		$stats['visits'] = array();

inc/class-statify-backend.php → inc/Backend.php

@@ -1,22 +1,25 @@
 <?php
 /**
- * Statify: Statify_Backend class
+ * Statify: Backend class
  *
  * This file contains the derived class for the plugin's backend features.
  *
  * @package   Statify
  * @since     1.4.0
  */
 
+namespace Statify;
+
 // Quit if accessed outside WP context.
 defined( 'ABSPATH' ) || exit;
 
 /**
- * Statify_Backend
+ * Statify Backend
  *
  * @since 1.4.0
+ * @since 2.0.0 renamed to Statify\Backend
  */
-class Statify_Backend {
+class Backend {
 
 	/**
 	 * Add plugin meta links

inc/class-statify-cron.php → inc/Cron.php

@@ -1,22 +1,25 @@
 <?php
 /**
- * Statify: Statify_Cron class
+ * Statify: Cron class
  *
  * This file contains the derived class for the plugin's cron features.
  *
  * @package   Statify
  * @since     1.4.0
  */
 
+namespace Statify;
+
 // Quit if accessed outside WP context.
 defined( 'ABSPATH' ) || exit;
 
 /**
- * Statify_Cron
+ * Statify Cron
  *
  * @since 1.4.0
+ * @since 2.0.0 renamed to Statify\Cron
  */
-class Statify_Cron extends Statify {
+class Cron extends Statify {
 
 	/**
 	 * Cleanup obsolete DB values

inc/class-statify-dashboard.php → inc/Dashboard.php

@@ -1,22 +1,25 @@
 <?php
 /**
- * Statify: Statify_Dashboard class
+ * Statify: Dashboard class
  *
  * This file contains the derived class for the plugin's dashboard features.
  *
  * @package   Statify
  * @since     1.1
  */
 
+namespace Statify;
+
 // Quit if accessed outside WP context.
 defined( 'ABSPATH' ) || exit;
 
 /**
- * Statify_Dashboard
+ * Statify Dashboard
  *
  * @since 1.1
+ * @since 2.0.0 renamed to Statify\Dashboard
  */
-class Statify_Dashboard extends Statify {
+class Dashboard extends Statify {
 
 	/**
 	 * Plugin version.

inc/class-statify-deactivate.php → inc/Deactivate.php

@@ -1,22 +1,25 @@
 <?php
 /**
- * Statify: Statify_Deactivate class
+ * Statify: Deactivate class
  *
  * This file contains the derived class for the plugin's deactivation actions.
  *
  * @package   Statify
  * @since     1.4.0
  */
 
+namespace Statify;
+
 // Quit if accessed outside WP context.
 defined( 'ABSPATH' ) || exit;
 
 /**
- * Statify_Deactivate
+ * Statify Deactivate
  *
  * @since 1.4.0
+ * @since 2.0.0 renamed to Statify\Deactivate
  */
-class Statify_Deactivate {
+class Deactivate {
 
 	/**
 	 * Plugin deactivation actions

inc/class-statify-frontend.php → inc/Frontend.php

@@ -1,22 +1,25 @@
 <?php
 /**
- * Statify: Statify_Frontend class
+ * Statify: Frontend class
  *
  * This file contains the derived class for the plugin's frontend features.
  *
  * @package   Statify
  * @since     1.4.0
  */
 
+namespace Statify;
+
 // Quit if accessed outside WP context.
 defined( 'ABSPATH' ) || exit;
 
 /**
- * Statify_Frontend
+ * Statify Frontend
  *
  * @since 1.4.0
+ * @since 2.0.0 renamed to Statify\Frontend
  */
-class Statify_Frontend extends Statify {
+class Frontend extends Statify {
 
 	/**
 	 * Track the page view
@@ -96,7 +99,7 @@ public static function wp_footer() {
 
 		// Add endpoint to script.
 		$script_data = array(
-			'url' => esc_url_raw( rest_url( Statify_Api::REST_NAMESPACE . '/' . Statify_Api::REST_ROUTE_TRACK ) ),
+			'url' => esc_url_raw( rest_url( Api::REST_NAMESPACE . '/' . Api::REST_ROUTE_TRACK ) ),
 		);
 		if ( Statify::TRACKING_METHOD_JAVASCRIPT_WITH_NONCE_CHECK === self::$_options['snippet'] ) {
 			$script_data['nonce'] = wp_create_nonce( 'statify_track' );
@@ -159,7 +162,7 @@ public static function amp_post_template_analytics( $analytics ) {
 	private static function make_amp_config() {
 		$cfg = array(
 			'requests'       => array(
-				'pageview' => rest_url( Statify_Api::REST_NAMESPACE . '/' . Statify_Api::REST_ROUTE_TRACK ),
+				'pageview' => rest_url( Api::REST_NAMESPACE . '/' . Api::REST_ROUTE_TRACK ),
 			),
 			'extraUrlParams' => array(
 				'referrer' => '${documentReferrer}',

inc/class-statify-install.php → inc/Install.php

@@ -1,23 +1,25 @@
 <?php
 /**
- * Statify: Statify_Install class
+ * Statify: Install class
  *
  * This file contains the derived class for the plugin's installation features.
  *
  * @package   Statify
  * @since     0.1
  */
 
+namespace Statify;
+
 // Quit if accessed outside WP context.
 defined( 'ABSPATH' ) || exit;
 
 /**
- * Statify_Install
+ * Statify Install
  *
- * @since   0.1
- * @version 2016-12-20
+ * @since 0.1
+ * @since 2.0.0 renamed to Statify\Install
  */
-class Statify_Install {
+class Install {
 
 	/**
 	 * Plugin activation handler.
@@ -83,7 +85,7 @@ private static function _apply() {
 		}
 
 		// Create the actual tables.
-		Statify_Table::init();
-		Statify_Table::create();
+		Table::init();
+		Table::create();
 	}
 }

inc/class-statify-settings.php → inc/Settings.php

@@ -1,22 +1,25 @@
 <?php
 /**
- * Statify: Statify_Settings class
+ * Statify: Settings class
  *
  * This file contains the plugin's settings capabilities.
  *
  * @package   Statify
  * @since     1.7
  */
 
+namespace Statify;
+
 // Quit if accessed directly..
 defined( 'ABSPATH' ) || exit;
 
 /**
- * Class Statify_Settings
+ * Statify Settings
  *
  * @since 1.7
+ * @since 2.0.0 renamed to Statify\Settings
  */
-class Statify_Settings {
+class Settings {
 
 	/**
 	 * Registers all options using the WP Settings API.