Files

200 lines
9.3 KiB
PHP

<?php
declare(strict_types=1);
namespace App\Domain\Notification;
/** Normalizes and validates notification metadata; delivery is deliberately out of scope. */
final class NotificationRecord
{
/** @var list<string> */
private const TYPES = [
'jobcard_created', 'jobcard_status_changed', 'assignment_created',
'time_entry_created', 'sla_threshold', 'attachment_uploaded',
];
/** @return array<string, mixed> */
public function normalize(array $record): array
{
$type = is_scalar($record['type'] ?? null) ? strtolower(trim((string) $record['type'])) : '';
$rawRecipients = $record['recipients'] ?? ($record['recipient'] ?? []);
if (!is_array($rawRecipients)) $rawRecipients = [$rawRecipients];
$recipients = [];
foreach ($rawRecipients as $recipient) {
if (is_scalar($recipient)) {
$value = strtolower(trim((string) $recipient));
if ($value !== '' && !in_array($value, $recipients, true)) $recipients[] = $value;
}
}
$key = $record['deduplication_key'] ?? $record['dedup_key'] ?? null;
$key = is_scalar($key) ? strtolower(trim((string) $key)) : '';
return [
'type' => $type,
'recipients' => $recipients,
'is_read' => $this->normalizeReadState($record),
'deduplication_key' => $key,
];
}
/** Validate the command used by a user to change one notification's read state. */
public function validateMarkRead(array $command): array
{
$value = $command['notification_id'] ?? $command['id'] ?? null;
$notificationId = $this->positiveInteger($value);
$errors = $notificationId === null
? ['notification_id' => 'Notification ID must be a positive integer.']
: [];
return ['valid' => $errors === [], 'notification_id' => $notificationId, 'errors' => $errors];
}
/** Alias with an explicit command name for callers that mark notifications unread. */
public function validateMarkUnread(array $command): array
{
return $this->validateMarkRead($command);
}
/** Return one normalized queue DTO for a single recipient. */
public function toQueueDto(array $record, string $recipient): array
{
$normalized = $this->normalize($record);
$recipient = strtolower(trim($recipient));
if (!in_array($recipient, $normalized['recipients'], true)) {
throw new \InvalidArgumentException('Recipient is not present in the notification.');
}
return [
'type' => $normalized['type'],
'recipient' => $recipient,
'title' => is_scalar($record['title'] ?? null) ? trim((string) $record['title']) : '',
'body' => is_scalar($record['body'] ?? null) && trim((string) $record['body']) !== '' ? trim((string) $record['body']) : null,
'is_read' => $normalized['is_read'],
'deduplication_key' => $normalized['deduplication_key'],
];
}
/** @return list<array<string, mixed>> one DTO per normalized recipient */
public function toQueueDtos(array $record): array
{
$normalized = $this->normalize($record);
return array_map(fn (string $recipient): array => $this->toQueueDto($record, $recipient), $normalized['recipients']);
}
/** Build the assignment notification payload before queueing it. */
public function assignmentCreated(array $event): array
{
$jobcardId = $this->positiveInteger($event['jobcard_id'] ?? null);
if ($jobcardId === null) throw new \InvalidArgumentException('Jobcard ID must be a positive integer.');
$reference = $this->text($event['jobcard_reference'] ?? $jobcardId);
$technician = $this->text($event['technician_name'] ?? null);
return $this->eventPayload($event, 'assignment_created', 'Jobcard assigned', sprintf('Jobcard %s was assigned%s.', $reference, $technician ? ' to ' . $technician : ''), 'assignment:' . $jobcardId);
}
/** Build the jobcard status notification payload before queueing it. */
public function statusChanged(array $event): array
{
$jobcardId = $this->positiveInteger($event['jobcard_id'] ?? null);
$to = strtolower($this->text($event['to_status'] ?? null));
if ($jobcardId === null || $to === '') throw new \InvalidArgumentException('Jobcard ID and destination status are required.');
return $this->eventPayload($event, 'jobcard_status_changed', 'Jobcard status changed', sprintf('Jobcard %s status changed to %s.', $event['jobcard_reference'] ?? $jobcardId, $to), 'jobcard:' . $jobcardId . ':status:' . $to);
}
/** Build an SLA threshold notification payload before queueing it. */
public function slaThreshold(array $event): array
{
$clientId = $this->positiveInteger($event['client_id'] ?? null);
$threshold = strtolower($this->text($event['threshold'] ?? $event['level'] ?? null));
if ($clientId === null || $threshold === '') throw new \InvalidArgumentException('Client ID and SLA threshold are required.');
return $this->eventPayload($event, 'sla_threshold', 'SLA threshold reached', sprintf('Client %s has reached the %s SLA threshold.', $event['client_name'] ?? $clientId, $threshold), 'sla:' . $clientId . ':' . $threshold);
}
/** @return array<string, mixed> */
public function validate(array $record): array
{
$normalized = $this->normalize($record);
$errors = [];
if (!in_array($normalized['type'], self::TYPES, true)) {
$errors['type'] = 'Notification type is not supported.';
}
if ($normalized['recipients'] === []) {
$errors['recipients'] = 'At least one notification recipient is required.';
} else {
foreach ($normalized['recipients'] as $recipient) {
if (filter_var($recipient, FILTER_VALIDATE_EMAIL) === false) {
$errors['recipients'] = 'Notification recipients must be valid email addresses.';
break;
}
}
}
if (!is_bool($normalized['is_read'])) $errors['is_read'] = 'Read state must be boolean.';
if ($normalized['deduplication_key'] === '' || mb_strlen($normalized['deduplication_key']) > 190 || preg_match('/[\x00-\x1F\x7F]/', $normalized['deduplication_key']) === 1) {
$errors['deduplication_key'] = 'A safe deduplication key is required and must be 190 characters or fewer.';
}
return [...$normalized, 'valid' => $errors === [], 'errors' => $errors];
}
public function deduplicationKey(array $record): string
{
return $this->normalize($record)['deduplication_key'];
}
/** @return array<string, mixed> */
public function display(array $record): array
{
$normalized = $this->normalize($record);
return [
'type' => $normalized['type'],
'recipients' => $normalized['recipients'],
'title' => is_scalar($record['title'] ?? null) ? trim((string) $record['title']) : '',
'body' => is_scalar($record['body'] ?? null) && trim((string) $record['body']) !== '' ? trim((string) $record['body']) : null,
'is_read' => $normalized['is_read'],
'deduplication_key' => $normalized['deduplication_key'],
];
}
/** @return array<string, mixed> */
public function toDisplay(array $record): array { return $this->display($record); }
private function normalizeBoolean(mixed $value): mixed
{
if (is_bool($value)) return $value;
if (is_int($value) && ($value === 0 || $value === 1)) return $value === 1;
if (is_string($value)) return match (strtolower(trim($value))) {
'1', 'true', 'yes', 'on' => true,
'0', 'false', 'no', 'off' => false,
default => $value,
};
return $value;
}
private function normalizeReadState(array $record): mixed
{
if (array_key_exists('read_at', $record)) {
if ($record['read_at'] === null) return false;
return is_scalar($record['read_at']) ? trim((string) $record['read_at']) !== '' : $record['read_at'];
}
$value = $record['is_read'] ?? $record['read'] ?? false;
if (is_string($value) && strtolower(trim($value)) === 'read') return true;
if (is_string($value) && strtolower(trim($value)) === 'unread') return false;
return $this->normalizeBoolean($value);
}
private function positiveInteger(mixed $value): ?int
{
if (is_int($value) && $value > 0) return $value;
if (is_string($value) && preg_match('/^[1-9]\d*$/', trim($value)) === 1) {
$trimmed = trim($value);
$integer = filter_var($trimmed, FILTER_VALIDATE_INT, ['options' => ['min_range' => 1]]);
return $integer === false || (string)$integer !== $trimmed ? null : $integer;
}
return null;
}
private function text(mixed $value): string
{
return is_scalar($value) ? trim((string) $value) : '';
}
private function eventPayload(array $event, string $type, string $title, string $body, string $deduplicationKey): array
{
return [...$this->normalize([...$event, 'type' => $type, 'deduplication_key' => $deduplicationKey]), 'title' => $title, 'body' => $body];
}
}