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wp-content/plugins/copy-delete-posts/analyst/src/Notices/NoticeFactory.php

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+<?php
+
+namespace Analyst\Notices;
+
+use Analyst\Core\AbstractFactory;
+
+class NoticeFactory extends AbstractFactory
+{
+	private static $instance;
+
+	CONST OPTIONS_KEY = 'analyst_notices';
+
+	/**
+	 * Application notifications
+	 *
+	 * @var array
+	 */
+	protected $notices = [];
+
+	/**
+	 * Read factory from options or make fresh instance
+	 *
+	 * @return NoticeFactory
+	 */
+	public static function instance()
+	{
+		if (!static::$instance) {
+			$raw = get_option(self::OPTIONS_KEY);
+
+			// In case object is already unserialized
+			// and instance of AccountDataFactory we
+			// return it, in other case deal with
+			// serialized string data
+			if ($raw instanceof self) {
+				static::$instance = $raw;
+			} else {
+				static::$instance = is_string($raw) ? static::unserialize($raw) : new self();
+			}
+		}
+
+		return static::$instance;
+	}
+
+	/**
+	 * Sync this object data with cache
+	 */
+	public function sync()
+	{
+		update_option(self::OPTIONS_KEY, serialize($this));
+	}
+
+	/**
+	 * Sync this instance data with cache
+	 */
+	public static function syncData()
+	{
+		static::instance()->sync();
+	}
+
+	/**
+	 * @return array
+	 */
+	public function getNotices()
+	{
+		return $this->notices;
+	}
+
+	/**
+	 * Filter out notices for certain account
+	 *
+	 * @param $accountId
+	 * @return array
+	 */
+	public function getNoticesForAccount($accountId)
+	{
+		return array_filter($this->notices, function (Notice $notice) use ($accountId) {
+			return $notice->getAccountId() === $accountId;
+		});
+	}
+
+	/**
+	 * Add new notice
+	 *
+	 * @param $notice
+	 *
+	 * @return $this
+	 */
+	public function addNotice($notice)
+	{
+		array_push($this->notices, $notice);
+
+		$this->sync();
+
+		return $this;
+	}
+
+	/**
+	 * Find notice by id
+	 *
+	 * @param $id
+	 * @return Notice|null
+	 */
+	public function find($id)
+	{
+		$notices = array_filter($this->notices, function (Notice $notice) use ($id) {
+			return $notice->getId() === $id;
+		});
+
+		return array_pop($notices);
+	}
+
+	/**
+	 * Remove notice by it's id
+	 *
+	 * @param $id
+	 */
+	public function remove($id)
+	{
+		// Get key of notice to remove
+		$key = array_search(
+			$this->find($id),
+			$this->notices
+		);
+
+		// Unset notice with key
+		unset($this->notices[$key]);
+
+		$this->sync();
+	}
+}