68 lines
1.4 KiB
PHP
68 lines
1.4 KiB
PHP
<?php
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namespace NoccyLabs\Mercureact\Broker;
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use SplObjectStorage;
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class Topic
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{
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const MAX_HISTORY_AGE = 180;
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/** @var string Topic name */
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private string $topic;
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/** @var array<string,Message> */
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private array $messages = [];
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/** @var int Creation unixtime */
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private int $created;
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private SubscriptionList $subscribers;
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public function __construct(string $topic)
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{
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$this->topic = $topic;
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$this->subscribers = new SubscriptionList();
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$this->created = time();
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}
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public function publish(Message $message)
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{
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// TODO check if message id has already been published
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foreach ($this->subscribers as $subscriber) {
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if ($message->private === true) {
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// TODO check subscriber access
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} else {
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// TODO deliver to subscriber
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}
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}
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}
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public function getAge(): int
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{
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return time() - $this->created;
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}
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public function getHistorySize(): int
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{
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return count($this->messages);
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}
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public function getSubscriberCount(): int
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{
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return count($this->subscribers);
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}
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/**
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* Garbage collect histry
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*
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*/
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public function garbageCollect(): void
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{
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$this->messages = array_filter(
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$this->messages,
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fn($message) => $message->getAge() < self::MAX_HISTORY_AGE
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);
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}
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}
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