## Why
Customer `k.sand@ksand.dk` reported never receiving wash certificates for completed bookings. Two methods contained silent early-return guards so the actual reason was unobservable from container logs:
- `order_bookings_o::sendWashCertificateToCustomer()` — 5 silent returns
- `email::sendWashCertificateEmailToCustomer()` — 1 silent return
The most likely root cause: `email_notifications_enabled` defaults to `0` in the schema and `users.add()` does not set it on insert, so newly imported customers have notifications off until toggled. `wantsEmailNotifications()` then returns false and the email silently skips.
## What changed
### Original commit (`0ead5de5`)
- `objects/order_bookings_o.php` — all 5 silent early-returns now log via new `logWashCertificateSkip()` helper (Redis stream `module=email / action=WASH_CERT_SKIP` + `error_log('[wash-cert-skip] …')`).
- `classes/email.php` — silent `hasTransaction()` return in `sendWashCertificateEmailToCustomer()` now logs too.
- `objects/bookings_o.php` — emits `WASH_CERT_SKIP` (legacy_no_wash_certificate_email) when `washCertificateEmail` is empty; no behavioural change.
- **New** `routes/washCertificateDebugRoute.php` — `GET /debug/wash-certificates/diagnose?customer_number=&from=&to=` (404 in prod via $DEBUG; superuser-auth otherwise) replays the decision tree and reports `blocking_reason` per booking.
### Follow-up commit (`46a59e4e`) — silent-failure sweep
**PART A — silent returns / silent errors (10 fixes):**
- `email::sendEmailMailerSend()` — blacklisted-recipient skip now logs with context.
- `email::sendNewCustomerRegistrationNotifications()` — empty-email skip + per-recipient try/catch with error_log (was unprotected; a single MailerSend error broke the loop).
- `bookings_new_o::generateWashCertificate()` — wrapped `sendWashCertificateEmail()` in try/catch with error_log and re-throw (same pattern as the k.sand fix).
- `users_o::getCustomerName()` — replaced catch-and-swallow with structured error_log.
- `users_o::getCustomerEcocomicData()` — same.
- `bookingsRoute.php` — added booking-id context to 4 × `$response->error('Booking not found', 404)` calls.
**PART B — cron paths (10 files):** Added error_log breadcrumb + try/catch to `CheckUnfulfilledBookings`, `ClearAllUsersEconomicCustomerDetails`, `ClearAllUsersEconomicCustomerDiscounts`, `RunXLVaskModuleCron`, `SyncBookings`, `SyncEconomicInvoiceStatus`, `SyncLogs`, `BackfillEconomicV2History`, `EnsureXLVaskAutomationSchema`, and 3 functions in `Cron.php`. Each uses a distinct `[cron-…]` prefix for grep-ability.
**PART C — real bugs (2 fixed):**
1. `email::sendEmailMailerSend()` attachment `array_map` — the previous exception message emitted a binary blob because `$attachment[0]` was already overwritten by `file_get_contents()`. Now captures $path first.
2. `bookings_new_o::generateWashCertificate()` — booking persisted as `completed` before email was sent, with no try/catch. Fixed (see PART A).
## How to verify
1. Deploy to staging.
2. Hit `/debug/wash-certificates/diagnose?customer_number=<k.sand's customer_number>` as a superuser — the response lists every booking's `blocking_reason`.
3. Tail container logs for `[wash-cert-skip]`, `[email-skip]`, `[cron-…]`, and Redis stream `module=email` action `WASH_CERT_SKIP` to see real-world skips going forward.
## Follow-ups (out of scope)
- Schema migration to default `email_notifications_enabled` to `1` and backfill non-empty-email customers.
- Move `error_log` to a proper PSR-3 logger.
## Risk
- Logging only + new debug endpoint (404-gated in prod). No behavioural change for any path that previously sent mail successfully. `php -l` could not be run in the original sandbox; please verify on your CI box before deploying.
🤖 Generated with [OpenClaw](https://openclaw.ai)
Transitioned from obsolete gateway object classes (`edge_gateway_shell_action_jobs_o`, `edge_gateway_shell_events_o`, `edge_gateway_shell_sessions_o`, `edge_gateway_update_jobs_o`) to the new agent implementation (`edge-gateway-agent/agent.php`).
- Update welcome email template to conditionally include corporate ID.
- Remove unused base64 signature utility and clean up the email class.
- Comment out attachments array for potential future updates.
- Dynamically insert company name and corporate ID in welcome message.
- Replace signature image URLs with updated assets and ensure proper loading.
- Add utility for retrieving base64-encoded signatures to enhance flexibility.
- Introduce `generatePasswordResetLink` method in `users_o` for creating secure password reset links.
- Add `sendWelcomeEmailToCustomer` method to `email` class with support for attachments.
- Update `authRoute.php` to send welcome emails when creating new customers.
- Extend `sendEmail` to handle optional attachments and references.
- Disable PHP entrypoint in Dockerfile for improved flexibility.
- Replace direct wash certificate email retrieval with `getWashCertificateEmail` method.
- Fallback to default email if no certificate-specific email exists.
- Adjust email assignment in booking notifications to use consistent logic.
- Added `sendWashCertificateToCustomer` method in `order_bookings_o` to handle email sending for wash certificates.
- Implemented `sendWashCertificateEmailToCustomer` in `email` to generate and attach wash certificate PDFs.
- Updated attachment permission logic in `ordersRoute` and `db_object_t`.
- Changed `object_attachments_o` property types and handling for improved attachment processing.
- Added conditional logic to prioritize `wash_certificate_email` if provided for customer notifications.
- Refactored email setup to use the selected email for wash certificate-related bookings.
- Introduced phone number update functionality in `userSecurityRoute`.
- Enhanced `order_bookings_o` to send booking confirmations to customers via SMS and email.
- Added `sendOrderBookingConfirmationEmail` method in `email` for HTML-based email notifications.
- Updated `notifyNewBooking` to include customer confirmation logic with SMS and email.
- Adjusted `users_o` to make phone and email properties public and added `setPhoneNumber` method.
- Optimized notification logic in `order_bookings_o` with department and customer-specific notifications.
- Added a static blacklist in `sendEmailMailerSend` to skip sending emails to blacklisted addresses.
- Implemented a return condition if the recipient email matches the blacklist.
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`.
Refactored notification methods to handle Slack, SMS, and email delivery logic more effectively. Introduced `sendBookingNotification` email functionality and a new template for booking notifications. Improved handling of booking data for emails and centralized logic for retrieving booking details.
Integrates a new method to send wash certificate emails, including support for attaching PDFs. Updates the email system to handle attachments and streamlines booking processes to send certificates upon completion.
Implemented a new booking confirmation email template and its integration with email sending functionality. Updated form handling to trigger confirmation email after submission and enhanced error handling on department validation.
Introduced MailerSend as an email provider with essential configuration options, including API key management and "reply-to" support. Enhanced email functionality by implementing a modular template system (header, footer, and content) for both text and HTML formats. Updated the existing email infrastructure to handle Stripe invoice notifications via MailerSend with conditional fallback planned for default SMTP services.
Implemented server, database, and environment backups with configurable modules. Introduced new routes and configuration classes for backups alongside improved zip and S3 storage. Replaced PHPMailer with a cURL-based email service for streamlined message sending.
Introduced a backup system managing database and metadata files using Minio/S3, alongside routes for handling these. Integrated PHPMailer for robust email functionalities, including configuration testing and SMTP handling. Updated Dockerfile, composer dependencies, and minor code improvements to support new features.
Introduce an email configuration module to manage SMTP settings, including encryption, host, username, and more. Implement functionality for retrieving invoice PDFs, storing them, and providing secure download links. Added relevant endpoint, routes, and helper methods to support these features.