Implement shop search and refactor

backend/app/plugins/wiaas/includes/user/class-wiaas-customer.php

@@ -33,6 +33,18 @@ class Wiaas_Customer {
 		return $result;
     }
 
+	/**
+	 * Retrieve available shops for customer
+	 *
+	 * @return array of available shops for customer
+	 */
+    public static function get_customer_shops() {
+
+    	$customer_id = wiaas_get_current_user_organization_id();
+
+    	return Wiaas_Shop_DB::get_customer_shops($customer_id);
+    }
+
     public static function get_customer_profile_addresses($customer_id){
         return get_user_meta($customer_id, 'profile_addresses', true) ?: [];
     }