423 lines
13 KiB
Markdown
423 lines
13 KiB
Markdown
# Story 8.10: Admin Notification - System Events
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## Epic Reference
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**Epic 8:** Email Notification System
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## User Story
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As an **admin**,
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I want **to be notified of critical system events**,
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So that **I can address issues promptly**.
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## Dependencies
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- **Story 8.1:** Email Infrastructure Setup (base template, SMTP configuration, queue setup)
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## Acceptance Criteria
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### Events to Notify
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- [ ] Email delivery failures (SMTP errors, bounces)
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- [ ] Scheduled job failures (Laravel scheduler)
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- [ ] Queue job failures
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- [ ] Critical application errors (database, payment, etc.)
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### Content Requirements
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- [ ] Event type and description
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- [ ] Timestamp (formatted per locale)
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- [ ] Relevant details (error message, stack trace summary, job name)
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- [ ] Recommended action (if applicable)
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- [ ] Environment indicator (production/staging)
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### Delivery Requirements
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- [ ] Sent immediately using sync mail driver (not queued)
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- [ ] Clear subject line indicating urgency with event type
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- [ ] Rate limited: max 1 notification per error type per 15 minutes
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- [ ] Uses base email template from Story 8.1
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### Critical Error Definition
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**DO Notify for:**
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- Database connection failures (`QueryException` with connection errors)
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- Queue connection failures
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- Mail delivery failures (`Swift_TransportException`, mail exceptions)
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- Scheduled command failures
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- Any exception marked with `ShouldNotifyAdmin` interface
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**DO NOT Notify for:**
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- Validation exceptions (`ValidationException`)
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- Authentication failures (`AuthenticationException`)
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- Authorization failures (`AuthorizationException`)
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- Model not found (`ModelNotFoundException`)
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- HTTP 404 errors (`NotFoundHttpException`)
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- CSRF token mismatches (`TokenMismatchException`)
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## Technical Notes
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### Files to Create
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- `app/Notifications/SystemErrorNotification.php`
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- `app/Notifications/QueueFailureNotification.php`
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- `app/Contracts/ShouldNotifyAdmin.php` (marker interface)
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- `app/Services/AdminNotificationService.php` (rate limiting logic)
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### Files to Modify
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- `bootstrap/app.php` (exception handling)
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- `app/Providers/AppServiceProvider.php` (queue failure listener)
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### Environment Variables
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```env
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# Admin notification settings (add to .env.example)
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ADMIN_NOTIFICATION_EMAIL=admin@libra.ps
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SYSTEM_NOTIFICATIONS_ENABLED=true
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ERROR_NOTIFICATION_THROTTLE_MINUTES=15
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```
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### Configuration
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```php
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// config/libra.php (add section)
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'notifications' => [
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'admin_email' => env('ADMIN_NOTIFICATION_EMAIL'),
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'system_notifications_enabled' => env('SYSTEM_NOTIFICATIONS_ENABLED', true),
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'throttle_minutes' => env('ERROR_NOTIFICATION_THROTTLE_MINUTES', 15),
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],
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```
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### Admin Notification Service
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```php
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// app/Services/AdminNotificationService.php
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namespace App\Services;
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use Illuminate\Support\Facades\Cache;
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use Illuminate\Support\Facades\Notification;
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use App\Notifications\SystemErrorNotification;
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class AdminNotificationService
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{
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public function notifyError(Throwable $exception): void
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{
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if (!config('libra.notifications.system_notifications_enabled')) {
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return;
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}
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$errorKey = $this->getErrorKey($exception);
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$throttleMinutes = config('libra.notifications.throttle_minutes', 15);
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// Rate limiting: skip if we've notified about this error type recently
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if (Cache::has($errorKey)) {
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return;
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}
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Cache::put($errorKey, true, now()->addMinutes($throttleMinutes));
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$adminEmail = config('libra.notifications.admin_email');
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// Send immediately (sync) - not queued
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Notification::route('mail', $adminEmail)
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->notifyNow(new SystemErrorNotification($exception));
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}
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protected function getErrorKey(Throwable $exception): string
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{
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return 'admin_notified:' . md5(get_class($exception) . $exception->getMessage());
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}
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public function shouldNotifyAdmin(Throwable $exception): bool
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{
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// Check if exception implements marker interface
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if ($exception instanceof \App\Contracts\ShouldNotifyAdmin) {
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return true;
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}
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// Check against excluded exception types
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$excludedTypes = [
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\Illuminate\Validation\ValidationException::class,
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\Illuminate\Auth\AuthenticationException::class,
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\Illuminate\Auth\Access\AuthorizationException::class,
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\Illuminate\Database\Eloquent\ModelNotFoundException::class,
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\Symfony\Component\HttpKernel\Exception\NotFoundHttpException::class,
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\Illuminate\Session\TokenMismatchException::class,
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];
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foreach ($excludedTypes as $type) {
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if ($exception instanceof $type) {
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return false;
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}
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}
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// Check for critical database errors
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if ($exception instanceof \Illuminate\Database\QueryException) {
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return $this->isCriticalDatabaseError($exception);
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}
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// Notify for mail exceptions
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if ($exception instanceof \Symfony\Component\Mailer\Exception\TransportExceptionInterface) {
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return true;
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}
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return false;
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}
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protected function isCriticalDatabaseError(\Illuminate\Database\QueryException $e): bool
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{
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$criticalCodes = ['2002', '1045', '1049']; // Connection refused, access denied, unknown DB
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return in_array($e->getCode(), $criticalCodes);
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}
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}
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```
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### Exception Handler Integration
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```php
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// bootstrap/app.php
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use App\Services\AdminNotificationService;
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->withExceptions(function (Exceptions $exceptions) {
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$exceptions->reportable(function (Throwable $e) {
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$service = app(AdminNotificationService::class);
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if ($service->shouldNotifyAdmin($e)) {
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$service->notifyError($e);
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}
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});
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})
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```
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### System Error Notification
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```php
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// app/Notifications/SystemErrorNotification.php
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namespace App\Notifications;
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use Illuminate\Notifications\Notification;
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use Illuminate\Notifications\Messages\MailMessage;
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use Throwable;
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class SystemErrorNotification extends Notification
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{
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public function __construct(
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public Throwable $exception
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) {}
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public function via(object $notifiable): array
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{
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return ['mail'];
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}
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public function toMail(object $notifiable): MailMessage
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{
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$environment = app()->environment();
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$errorType = class_basename($this->exception);
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return (new MailMessage)
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->subject("[URGENT] [{$environment}] System Error: {$errorType} - Libra Law Firm")
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->greeting('System Alert')
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->line('A critical error occurred on the platform.')
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->line("**Error Type:** {$errorType}")
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->line("**Message:** " . $this->exception->getMessage())
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->line("**File:** " . $this->exception->getFile() . ':' . $this->exception->getLine())
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->line("**Time:** " . now()->format('Y-m-d H:i:s'))
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->line("**Environment:** {$environment}")
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->line('Please check the application logs for full stack trace and details.')
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->salutation('— Libra System Monitor');
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}
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}
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```
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### Queue Failure Notification
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```php
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// app/Notifications/QueueFailureNotification.php
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namespace App\Notifications;
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use Illuminate\Notifications\Notification;
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use Illuminate\Notifications\Messages\MailMessage;
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use Illuminate\Queue\Events\JobFailed;
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class QueueFailureNotification extends Notification
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{
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public function __construct(
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public JobFailed $event
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) {}
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public function via(object $notifiable): array
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{
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return ['mail'];
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}
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public function toMail(object $notifiable): MailMessage
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{
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$jobName = $this->event->job->resolveName();
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$environment = app()->environment();
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return (new MailMessage)
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->subject("[URGENT] [{$environment}] Queue Job Failed: {$jobName} - Libra Law Firm")
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->greeting('Queue Failure Alert')
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->line('A queued job has failed.')
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->line("**Job:** {$jobName}")
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->line("**Queue:** " . $this->event->job->getQueue())
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->line("**Error:** " . $this->event->exception->getMessage())
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->line("**Time:** " . now()->format('Y-m-d H:i:s'))
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->line("**Attempts:** " . $this->event->job->attempts())
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->line('Please check the failed_jobs table and application logs for details.')
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->salutation('— Libra System Monitor');
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}
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}
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```
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### Queue Failure Listener Registration
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```php
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// app/Providers/AppServiceProvider.php boot() method
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use Illuminate\Support\Facades\Queue;
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use Illuminate\Queue\Events\JobFailed;
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use Illuminate\Support\Facades\Notification;
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use App\Notifications\QueueFailureNotification;
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public function boot(): void
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{
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Queue::failing(function (JobFailed $event) {
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if (!config('libra.notifications.system_notifications_enabled')) {
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return;
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}
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$adminEmail = config('libra.notifications.admin_email');
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Notification::route('mail', $adminEmail)
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->notifyNow(new QueueFailureNotification($event));
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});
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}
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```
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### Marker Interface
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```php
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// app/Contracts/ShouldNotifyAdmin.php
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namespace App\Contracts;
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/**
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* Marker interface for exceptions that should trigger admin notification.
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* Implement this interface on custom exceptions that require admin attention.
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*/
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interface ShouldNotifyAdmin
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{
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}
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```
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## Testing Approach
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### Unit Tests
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```php
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// tests/Unit/Services/AdminNotificationServiceTest.php
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test('shouldNotifyAdmin returns false for validation exceptions', function () {
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$service = new AdminNotificationService();
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$exception = new \Illuminate\Validation\ValidationException(validator([], []));
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expect($service->shouldNotifyAdmin($exception))->toBeFalse();
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});
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test('shouldNotifyAdmin returns true for exceptions implementing ShouldNotifyAdmin', function () {
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$service = new AdminNotificationService();
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$exception = new class extends Exception implements \App\Contracts\ShouldNotifyAdmin {};
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expect($service->shouldNotifyAdmin($exception))->toBeTrue();
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});
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test('rate limiting prevents duplicate notifications', function () {
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$service = new AdminNotificationService();
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$exception = new RuntimeException('Test error');
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Notification::fake();
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$service->notifyError($exception);
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$service->notifyError($exception); // Should be throttled
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Notification::assertSentTimes(SystemErrorNotification::class, 1);
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});
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```
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### Feature Tests
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```php
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// tests/Feature/Notifications/SystemErrorNotificationTest.php
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test('critical database error triggers admin notification', function () {
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Notification::fake();
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// Simulate a critical database error being reported
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$exception = new \Illuminate\Database\QueryException(
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'mysql',
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'SELECT 1',
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[],
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new \Exception('Connection refused', 2002)
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);
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$service = app(AdminNotificationService::class);
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$service->notifyError($exception);
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Notification::assertSentOnDemand(
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SystemErrorNotification::class,
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function ($notification, $channels, $notifiable) {
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return $notifiable->routes['mail'] === config('libra.notifications.admin_email');
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}
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);
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});
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test('queue failure triggers admin notification', function () {
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Notification::fake();
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// Dispatch a job that will fail
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$job = new class implements ShouldQueue {
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use Dispatchable, InteractsWithQueue, Queueable;
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public function handle() { throw new Exception('Test failure'); }
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};
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// Process the job (will fail and trigger notification)
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// Note: This requires queue to be sync for testing
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Notification::assertSentOnDemand(QueueFailureNotification::class);
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});
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test('validation exception does not trigger admin notification', function () {
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Notification::fake();
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try {
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validator([], ['email' => 'required'])->validate();
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} catch (\Illuminate\Validation\ValidationException $e) {
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$service = app(AdminNotificationService::class);
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if ($service->shouldNotifyAdmin($e)) {
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$service->notifyError($e);
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}
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}
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Notification::assertNothingSent();
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});
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test('system error notification contains required information', function () {
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$exception = new RuntimeException('Test error message');
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$notification = new SystemErrorNotification($exception);
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$mail = $notification->toMail(new AnonymousNotifiable());
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expect($mail->subject)->toContain('[URGENT]');
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expect($mail->subject)->toContain('RuntimeException');
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expect((string) $mail->render())->toContain('Test error message');
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});
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```
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## Definition of Done
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- [ ] `AdminNotificationService` created with rate limiting
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- [ ] `SystemErrorNotification` created and styled
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- [ ] `QueueFailureNotification` created and styled
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- [ ] `ShouldNotifyAdmin` marker interface created
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- [ ] Exception handler integration in `bootstrap/app.php`
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- [ ] Queue failure listener in `AppServiceProvider`
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- [ ] Environment variables documented in `.env.example`
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- [ ] Configuration added to `config/libra.php`
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- [ ] Notifications sent immediately (sync, not queued)
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- [ ] Rate limiting prevents notification spam
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- [ ] Excluded exceptions do not trigger notifications
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- [ ] Unit tests for `shouldNotifyAdmin()` logic
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- [ ] Feature tests for notification triggers
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- [ ] All tests pass
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- [ ] Code formatted with Pint
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## Estimation
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**Complexity:** Medium | **Effort:** 4 hours
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## Notes
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- Admin email should be configured in production before deployment
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- Consider monitoring the `failed_jobs` table separately for recurring failures
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- Rate limiting uses cache - ensure cache driver is configured properly
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- In local development, set `SYSTEM_NOTIFICATIONS_ENABLED=false` to avoid noise
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