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<?php declare(strict_types = 1); |
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|
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namespace MailPoet\Cache; |
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|
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if (!defined('ABSPATH')) exit; |
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|
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|
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use MailPoet\WP\Functions as WPFunctions; |
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use MailPoetVendor\Carbon\Carbon; |
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|
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class TransientCache { |
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public const SUBSCRIBERS_STATISTICS_COUNT_KEY = 'mailpoet_subscribers_statistics_count_cache'; |
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public const SUBSCRIBERS_HOMEPAGE_STATISTICS_COUNT_KEY = 'mailpoet_subscribers_statistics_count_homepage_cache'; |
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public const SUBSCRIBERS_GLOBAL_STATISTICS_COUNT_KEY = 'mailpoet_subscribers_statistics_count_global_cache'; |
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|
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private $cacheEnabled; |
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|
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/** @var WPFunctions */ |
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private $wp; |
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|
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public function __construct( |
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WPFunctions $wp |
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) { |
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$this->wp = $wp; |
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$this->cacheEnabled = $this->wp->applyFilters('mailpoet_transient_cache_enabled', true); |
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} |
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|
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public function getItem(string $key, int $id): ?array { |
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$items = $this->getItems($key); |
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return $items[$id] ?? null; |
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} |
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|
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public function getOldestCreatedAt(string $key): ?\DateTime { |
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$oldest = $this->getOldestItem($key); |
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return $oldest['created_at'] ?? null; |
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} |
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|
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public function getOldestItem(string $key): ?array { |
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$items = $this->getItems($key); |
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$oldest = null; |
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foreach ($items as $item) { |
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if ($oldest === null || $item['created_at'] < $oldest['created_at']) { |
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$oldest = $item; |
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} |
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} |
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return $oldest; |
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} |
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|
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public function setItem(string $key, array $item, int $id): void { |
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$items = $this->getItems($key); |
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$items[$id] = [ |
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'item' => $item, |
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'created_at' => Carbon::now(), |
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]; |
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$this->setItems($key, $items); |
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} |
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|
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public function invalidateItem(string $key, int $id): void { |
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$items = $this->getItems($key); |
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unset($items[$id]); |
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if (count($items)) { |
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$this->setItems($key, $items); |
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} else { |
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$this->deleteItems($key); |
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} |
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} |
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|
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public function invalidateItems(string $key): void { |
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$this->deleteItems($key); |
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} |
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|
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public function invalidateAllItems(): void { |
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$this->invalidateItems(self::SUBSCRIBERS_STATISTICS_COUNT_KEY); |
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$this->invalidateItems(self::SUBSCRIBERS_HOMEPAGE_STATISTICS_COUNT_KEY); |
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$this->invalidateItems(self::SUBSCRIBERS_GLOBAL_STATISTICS_COUNT_KEY); |
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} |
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|
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private function deleteItems(string $key): void { |
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$this->wp->deleteTransient($key); |
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} |
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|
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private function setItems(string $key, array $items): void { |
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$this->wp->setTransient($key, $items); |
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} |
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|
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public function getItems(string $key): array { |
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if (!$this->cacheEnabled) { |
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return []; |
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} |
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return $this->wp->getTransient($key) ?: []; |
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} |
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|
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public function enableCache(): void { |
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$this->cacheEnabled = true; |
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} |
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|
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public function disableCache(): void { |
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$this->cacheEnabled = false; |
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} |
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} |
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|
