Refactor SMS and notification logic; add email template.

Updated the SMS sending logic to improve validation and handling of recipients in `gatewayapi.php`. Refactored notification conditions in `bookings_o.php` to ensure proper fallback mechanisms. Additionally, included a new booking notification email template in `email.php`.

services/nginx/app/classes/email.php

@@ -8,6 +8,7 @@ require_once WD . '/modules/email/templates/email_template_footer.php';
 require_once WD . '/modules/email/templates/email_template_head.php';
 require_once WD . '/modules/email/templates/email_template_stripe_invoice.php';
 require_once WD . '/modules/email/templates/email_template_booking_confirmation.php';
+require_once WD . '/modules/email/templates/email_template_booking_notification.php';
 require_once WD . '/modules/email/templates/email_template_wash_certificate.php';
 
 use email\email_c;

services/nginx/app/classes/gatewayapi.php

@@ -36,7 +36,7 @@ class gatewayapi implements gatewayapi_i
         $data = [
             "recipients" => array_map(function ($recipient) {
                 return [
-                    'msisdn' => (int)$recipient,
+                    'msisdn' => $recipient,
                 ];
             }, $to),
             'message' => $message,

services/nginx/app/objects/bookings_o.php

@@ -303,11 +303,11 @@ class bookings_o extends db
         $department_array = $department->asArray();
         $customer_array = $customer->asArray();
         // Define delivery methods
-        $deliverSlack = !empty($department->slack_webhook->value());
+        $deliverSlack = (boolean)!empty($department->slack_webhook->value());
         $deliverSMS = (
             !empty($branding->phone_country_code->value()) &&
             !empty($branding->phone->value()) &&
-            !$deliverSlack // Only send SMS if slack is not available
+            ((int)$branding->phone->value() > 0)
         );
         $deliverEmail = (
             !empty($this->contact_email->value()) &&
@@ -336,11 +336,14 @@ class bookings_o extends db
             ));
         }
 
-        if (!$deliverSMS) {
+        if ($deliverSMS) {
             // Send an SMS notification to the department
             $gatewayapi = new gatewayapi();
+            $phone = '' . $branding->phone_country_code->value() . $branding->phone->value();
             $gatewayapi->send(
-                [$branding->phone_country_code->value() . $branding->phone->value()],
+                [
+                    $phone,
+                ],
                 'New booking from ' . $customer->getCustomerName($customer_array['customer_number']) . ' (' . $this->id . ')',
             );
         }