WooCommerce Analytics: Fix WC_Tracks class not found fatal error (#45330)

* Fix WC_Tracks class not found fatal error

* Fix warnings

* Add changelog

Author: chihsuan

projects/packages/woocommerce-analytics/changelog/fix-wc-analytics-fatals-warnings

@@ -0,0 +1,4 @@
+Significance: patch
+Type: fixed
+
+WC_Tracks class not found fatal error and key undefined warnings

projects/packages/woocommerce-analytics/src/class-wc-analytics-tracking.php

@@ -182,10 +182,10 @@ public static function get_properties( $event_name, $event_properties ) {
 				'landing_page'   => $session_details['landing_page'] ?? null,
 				'is_engaged'     => $session_details['is_engaged'] ?? null,
 				'ui'             => $blog_user_id,
-				'blog_id'        => $blog_details['blog_id'],
-				'store_id'       => $blog_details['store_id'],
-				'url'            => $blog_details['url'],
-				'woo_version'    => $blog_details['wc_version'],
+				'blog_id'        => $blog_details['blog_id'] ?? null,
+				'store_id'       => $blog_details['store_id'] ?? null,
+				'url'            => $blog_details['url'] ?? null,
+				'woo_version'    => $blog_details['wc_version'] ?? null,
 				'wp_version'     => get_bloginfo( 'version' ),
 				'store_admin'    => count( array_intersect( array( 'administrator', 'shop_manager' ), wp_get_current_user()->roles ) ) > 0 ? 1 : 0,
 				'device'         => wp_is_mobile() ? 'mobile' : 'desktop',

projects/packages/woocommerce-analytics/src/class-woocommerce-analytics.php

@@ -91,6 +91,17 @@ public static function should_track_store() {
 			return false;
 		}
 
+		// Ensure the WC Tracks classes exist.
+		if ( ! class_exists( 'WC_Tracks' ) ) {
+			if ( ! defined( 'WC_ABSPATH' ) || ! file_exists( WC_ABSPATH . 'includes/tracks/class-wc-tracks.php' ) ) {
+				return false;
+			}
+
+			include_once WC_ABSPATH . 'includes/tracks/class-wc-tracks.php';
+			include_once WC_ABSPATH . 'includes/tracks/class-wc-tracks-event.php';
+			include_once WC_ABSPATH . 'includes/tracks/class-wc-tracks-client.php';
+		}
+
 		// Tracking only Site pages.
 		if ( is_admin() || wp_doing_ajax() || wp_is_xml_request() || is_login() || is_feed() || ( defined( 'WP_CLI' ) && WP_CLI ) ) {
 			return false;