tag
	 * @return string
	 */
	private function cache_settings($preformat_container = true) {
		$config = $this->server_info_util->get_cache_config();

		if (isset($config['wp_salt_auth'])) {
			$config['wp_salt_auth'] = '*****';
		}
		if (isset($config['wp_salt_logged_in'])) {
			$config['wp_salt_logged_in'] = '*****';
		}

		$json = wp_json_encode($config, JSON_PRETTY_PRINT);
		return (string) $preformat_container ? $this->pre_container($json) : $json;
	}

	/**
	 * Grab .htaccess contents in webroot
	 *
	 * @param bool $preformat_container Enclose the value inside a 
 tag
	 * @return string
	 */
	private function webroot_htaccess($preformat_container = true) {
		$content = $this->server_info_util->get_webroot_htaccess();
		if ('' !== $content) {
			return $preformat_container ? $this->pre_container($content) : $content;
		}
		return esc_html__('Not found or not readable', 'wp-optimize');
	}

	/**
	 * Grab .htaccess contents in uploads folder
	 *
	 * @param bool $preformat_container Enclose the value inside a 
 tag
	 * @return string
	 */
	private function uploads_htaccess($preformat_container = true) {
		$content = $this->server_info_util->get_upload_dir_htaccess();
		if ('' !== $content) {
			return $preformat_container ? $this->pre_container($content) : $content;
		}
		return esc_html__('Not found or not readable', 'wp-optimize');
	}

	/**
	 * Helper to generate a preformatted HTML tag with contents and optional id
	 *
	 * @param string $content The innerHTML for the tag
	 * @param string $id      Optional DOM id attribute
	 * @return string
	 */
	private function pre_container($content, $id = '') {
		return '
' . esc_html($content) . '
';
	}

	/**
	 * Show information about directories permissions
	 *
	 * @param bool $preformat_container Enclose the value inside a 
 tag
	 * @return string
	 */
	private function path_perms($preformat_container = true) {
		$json = wp_json_encode($this->server_info_util->get_uploads_dir_permissions(), JSON_PRETTY_PRINT);
		return (string) $preformat_container ? $this->pre_container($json) : $json;
	}

	/**
	 * Information about WebP image redirection status
	 *
	 * @return string
	 */
	private function webp_redirect_status() {
		$result = $this->server_info_util->webp_redirection_status();

		if (null === $result) {
			return esc_html__('Redirection is not available', 'wp-optimize');
		} elseif (false === $result) {
			return esc_html__('Redirection is disabled', 'wp-optimize');
		}
		return esc_html__('Redirection is enabled', 'wp-optimize');
	}

	/**
	 * Prepare complex item (async loading) as a label HTML tag that will be replaced with JS code (ex. directories sizes from core-site-health API call)
	 *
	 * @param string|array $value              If an array, it will be JSON encoded inside a preformatted HTML tag
	 * @param string|null  $id                 If not null, it is used as the label id property. If null, there will be no label, just value
	 * @param string|null  $dynamic_field_type If not null, a css class is used to be able to catch these fields when the call is done
	 * @return string
	 */
	private function ajax_value_container($value, $id, $dynamic_field_type) {
		if (is_array($value)) {
			$value = '
' . wp_json_encode($value, JSON_PRETTY_PRINT) . '
';
		} else {
			$value = esc_html($value);
		}

		if (is_null($id)) {
			return $value;
		}

		$css_class = null !== $dynamic_field_type ? 'wpo-ajax-field-' . esc_attr($dynamic_field_type) : '';
		return '' . esc_html($value) . '';
	}

	/**
	 * Add timestamp to report information
	 *
	 * @return string
	 */
	private function generation_time() {
		$timezone = $this->wp_timezone_string();

		return date_i18n('Y-m-d H:i:s', $this->current_datetime()->getTimestamp()) . ('' !== $timezone ? ' (' . $timezone . ')' : '');
	}

	/**
	 * Retrieves the site's timezone string in a backward-compatible way.
	 *
	 * If the `wp_timezone_string()` function is available (WordPress 5.3+), it will use it.
	 * Otherwise, it falls back to a custom implementation that uses `timezone_string` or `gmt_offset`.
	 *
	 * Example return values:
	 * - 'Europe/London'
	 * - 'UTC'
	 * - '+01:00'
	 * - '-06:30'
	 *
	 * @return string PHP timezone identifier or a ±HH:MM offset.
	 */
	private function wp_timezone_string() {
		if (function_exists('wp_timezone_string')) {
			return wp_timezone_string();
		}

		$timezone_string = get_option('timezone_string');

		if ($timezone_string) {
			return $timezone_string;
		}

		$offset  = (float) get_option( 'gmt_offset' );
		$hours   = (int) $offset;
		$minutes = ($offset - $hours);

		$sign      = ($offset < 0) ? '-' : '+';
		$abs_hour  = abs($hours);
		$abs_mins  = abs($minutes * 60);
		$tz_offset = sprintf('%s%02d:%02d', $sign, $abs_hour, $abs_mins);

		return $tz_offset;
	}

	/**
	 * Retrieves the current site datetime object in a backwards-compatible way.
	 *
	 * @return DateTimeImmutable
	 */
	private function current_datetime() {
		if (function_exists('current_datetime')) {
			return current_datetime();
		}

		$timezone = new DateTimeZone($this->wp_timezone_string());
		return new DateTimeImmutable('now', $timezone);
	}
}

endif;