}
		}

		$settings['visibility'] = $visibility;
		return $settings;
	}

	/**
	 * Add item to visibility group (excluded or specific)
	 *
	 * @since 2.5.0
	 * @param int|array $item Item ID or {id, type} object
	 * @param array &$group Reference to visibility group (excluded or specific)
	 */
	private static function add_item_to_visibility_group($item, array &$group): void
	{
		// Handle legacy format: just an integer ID (assume it's a page)
		if (is_numeric($item)) {
			$id = absint($item);
			if ($id > 0 && !in_array($id, $group['pages'], true)) {
				$group['pages'][] = $id;
			}
			return;
		}

		// Handle new format: {id, type} object
		if (!is_array($item) || !isset($item['id'])) {
			return;
		}

		$type = $item['type'] ?? 'page';

		// Normalize 'post' to 'page' (WordPress posts are treated as pages in visibility)
		if ($type === 'post') {
			$type = 'page';
		}

		switch ($type) {
			case 'page':
				$id = absint($item['id']);
				if ($id > 0 && !in_array($id, $group['pages'], true)) {
					$group['pages'][] = $id;
				}
				break;

			case 'category':
				$id = absint($item['id']);
				if ($id > 0 && !in_array($id, $group['categories'], true)) {
					$group['categories'][] = $id;
				}
				break;

			case 'post_type':
				// For post types, the ID is actually the slug
				$slug = is_numeric($item['id']) ? '' : sanitize_key($item['id']);
				if (!empty($slug) && !in_array($slug, $group['custom_post_types'], true)) {
					$group['custom_post_types'][] = $slug;
				}
				break;
		}
	}

	/**
	 * Convert timestamp to relative date string
	 *
	 * @since 2.5.0
	 * @param int $timestamp Unix timestamp
	 * @return string Relative date (e.g., "3d ago", "1w ago")
	 */
	private static function get_relative_date(int $timestamp): string
	{
		if ($timestamp <= 0) {
			return '';
		}

		$diff = time() - $timestamp;

		if ($diff < 60) {
			return __('just now', 'reviews-feed');
		} elseif ($diff < 3600) {
			$mins = (int) floor($diff / 60);
			return sprintf(_n('%dm ago', '%dm ago', $mins, 'reviews-feed'), $mins);
		} elseif ($diff < 86400) {
			$hours = (int) floor($diff / 3600);
			return sprintf(_n('%dh ago', '%dh ago', $hours, 'reviews-feed'), $hours);
		} elseif ($diff < 604800) {
			$days = (int) floor($diff / 86400);
			return sprintf(_n('%dd ago', '%dd ago', $days, 'reviews-feed'), $days);
		} elseif ($diff < 2592000) {
			$weeks = (int) floor($diff / 604800);
			return sprintf(_n('%dw ago', '%dw ago', $weeks, 'reviews-feed'), $weeks);
		} elseif ($diff < 31536000) {
			$months = (int) floor($diff / 2592000);
			return sprintf(_n('%dmo ago', '%dmo ago', $months, 'reviews-feed'), $months);
		} else {
			$years = (int) floor($diff / 31536000);
			return sprintf(_n('%dy ago', '%dy ago', $years, 'reviews-feed'), $years);
		}
	}

	/**
	 * Sanitize visibility pages array
	 * Handles both old format (ID-only) and new format (objects with metadata)
	 *
	 * @since 2.5.0
	 * @param array $pages Array of pages (IDs or objects)
	 * @return array Sanitized pages array
	 */
	private static function sanitize_visibility_pages(array $pages): array
	{
		$sanitized = [];
		foreach ($pages as $page) {
			if (is_array($page)) {
				// New format: {id, title, url}
				$item = [
					'id' => isset($page['id']) ? absint($page['id']) : 0,
				];
				if (isset($page['title'])) {
					$item['title'] = sanitize_text_field($page['title']);
				}
				if (isset($page['url'])) {
					$item['url'] = esc_url_raw($page['url']);
				}
				// ID 0 is valid (homepage)
				if ($item['id'] >= 0) {
					$sanitized[] = $item;
				}
			} else {
				// Old format: just ID
				$id = absint($page);
				if ($id >= 0) {
					$sanitized[] = $id;
				}
			}
		}
		return array_values($sanitized);
	}

	/**
	 * Sanitize visibility categories array
	 * Handles both old format (ID-only) and new format (objects with metadata)
	 *
	 * @since 2.5.0
	 * @param array $categories Array of categories (IDs or objects)
	 * @return array Sanitized categories array
	 */
	private static function sanitize_visibility_categories(array $categories): array
	{
		$sanitized = [];
		foreach ($categories as $category) {
			if (is_array($category)) {
				// New format: {id, name, url}
				$id = isset($category['id']) ? absint($category['id']) : 0;
				if ($id > 0) {
					$item = ['id' => $id];
					if (isset($category['name'])) {
						$item['name'] = sanitize_text_field($category['name']);
					}
					if (isset($category['url'])) {
						$item['url'] = esc_url_raw($category['url']);
					}
					$sanitized[] = $item;
				}
			} else {
				// Old format: just ID
				$id = absint($category);
				if ($id > 0) {
					$sanitized[] = $id;
				}
			}
		}
		return array_values($sanitized);
	}

	/**
	 * Sanitize visibility custom post types array
	 * Handles both old format (slug-only) and new format (objects with metadata)
	 *
	 * @since 2.5.0
	 * @param array $post_types Array of post types (slugs or objects)
	 * @return array Sanitized post types array
	 */
	private static function sanitize_visibility_post_types(array $post_types): array
	{
		$sanitized = [];
		foreach ($post_types as $post_type) {
			if (is_array($post_type)) {
				// New format: {name (slug), label}
				$slug = isset($post_type['name']) ? sanitize_key($post_type['name']) : '';
				if (!empty($slug)) {
					$item = ['name' => $slug];
					if (isset($post_type['label'])) {
						$item['label'] = sanitize_text_field($post_type['label']);
					}
					$sanitized[] = $item;
				}
			} else {
				// Old format: just slug
				$slug = sanitize_key($post_type);
				if (!empty($slug)) {
					$sanitized[] = $slug;
				}
			}
		}
		return array_values($sanitized);
	}
}
}
		}

		$settings['visibility'] = $visibility;
		return $settings;
	}

	/**
	 * Add item to visibility group (excluded or specific)
	 *
	 * @since 2.5.0
	 * @param int|array $item Item ID or {id, type} object
	 * @param array &$group Reference to visibility group (excluded or specific)
	 */
	private static function add_item_to_visibility_group($item, array &$group): void
	{
		// Handle legacy format: just an integer ID (assume it's a page)
		if (is_numeric($item)) {
			$id = absint($item);
			if ($id > 0 && !in_array($id, $group['pages'], true)) {
				$group['pages'][] = $id;
			}
			return;
		}

		// Handle new format: {id, type} object
		if (!is_array($item) || !isset($item['id'])) {
			return;
		}

		$type = $item['type'] ?? 'page';

		// Normalize 'post' to 'page' (WordPress posts are treated as pages in visibility)
		if ($type === 'post') {
			$type = 'page';
		}

		switch ($type) {
			case 'page':
				$id = absint($item['id']);
				if ($id > 0 && !in_array($id, $group['pages'], true)) {
					$group['pages'][] = $id;
				}
				break;

			case 'category':
				$id = absint($item['id']);
				if ($id > 0 && !in_array($id, $group['categories'], true)) {
					$group['categories'][] = $id;
				}
				break;

			case 'post_type':
				// For post types, the ID is actually the slug
				$slug = is_numeric($item['id']) ? '' : sanitize_key($item['id']);
				if (!empty($slug) && !in_array($slug, $group['custom_post_types'], true)) {
					$group['custom_post_types'][] = $slug;
				}
				break;
		}
	}

	/**
	 * Convert timestamp to relative date string
	 *
	 * @since 2.5.0
	 * @param int $timestamp Unix timestamp
	 * @return string Relative date (e.g., "3d ago", "1w ago")
	 */
	private static function get_relative_date(int $timestamp): string
	{
		if ($timestamp <= 0) {
			return '';
		}

		$diff = time() - $timestamp;

		if ($diff < 60) {
			return __('just now', 'reviews-feed');
		} elseif ($diff < 3600) {
			$mins = (int) floor($diff / 60);
			return sprintf(_n('%dm ago', '%dm ago', $mins, 'reviews-feed'), $mins);
		} elseif ($diff < 86400) {
			$hours = (int) floor($diff / 3600);
			return sprintf(_n('%dh ago', '%dh ago', $hours, 'reviews-feed'), $hours);
		} elseif ($diff < 604800) {
			$days = (int) floor($diff / 86400);
			return sprintf(_n('%dd ago', '%dd ago', $days, 'reviews-feed'), $days);
		} elseif ($diff < 2592000) {
			$weeks = (int) floor($diff / 604800);
			return sprintf(_n('%dw ago', '%dw ago', $weeks, 'reviews-feed'), $weeks);
		} elseif ($diff < 31536000) {
			$months = (int) floor($diff / 2592000);
			return sprintf(_n('%dmo ago', '%dmo ago', $months, 'reviews-feed'), $months);
		} else {
			$years = (int) floor($diff / 31536000);
			return sprintf(_n('%dy ago', '%dy ago', $years, 'reviews-feed'), $years);
		}
	}

	/**
	 * Sanitize visibility pages array
	 * Handles both old format (ID-only) and new format (objects with metadata)
	 *
	 * @since 2.5.0
	 * @param array $pages Array of pages (IDs or objects)
	 * @return array Sanitized pages array
	 */
	private static function sanitize_visibility_pages(array $pages): array
	{
		$sanitized = [];
		foreach ($pages as $page) {
			if (is_array($page)) {
				// New format: {id, title, url}
				$item = [
					'id' => isset($page['id']) ? absint($page['id']) : 0,
				];
				if (isset($page['title'])) {
					$item['title'] = sanitize_text_field($page['title']);
				}
				if (isset($page['url'])) {
					$item['url'] = esc_url_raw($page['url']);
				}
				// ID 0 is valid (homepage)
				if ($item['id'] >= 0) {
					$sanitized[] = $item;
				}
			} else {
				// Old format: just ID
				$id = absint($page);
				if ($id >= 0) {
					$sanitized[] = $id;
				}
			}
		}
		return array_values($sanitized);
	}

	/**
	 * Sanitize visibility categories array
	 * Handles both old format (ID-only) and new format (objects with metadata)
	 *
	 * @since 2.5.0
	 * @param array $categories Array of categories (IDs or objects)
	 * @return array Sanitized categories array
	 */
	private static function sanitize_visibility_categories(array $categories): array
	{
		$sanitized = [];
		foreach ($categories as $category) {
			if (is_array($category)) {
				// New format: {id, name, url}
				$id = isset($category['id']) ? absint($category['id']) : 0;
				if ($id > 0) {
					$item = ['id' => $id];
					if (isset($category['name'])) {
						$item['name'] = sanitize_text_field($category['name']);
					}
					if (isset($category['url'])) {
						$item['url'] = esc_url_raw($category['url']);
					}
					$sanitized[] = $item;
				}
			} else {
				// Old format: just ID
				$id = absint($category);
				if ($id > 0) {
					$sanitized[] = $id;
				}
			}
		}
		return array_values($sanitized);
	}

	/**
	 * Sanitize visibility custom post types array
	 * Handles both old format (slug-only) and new format (objects with metadata)
	 *
	 * @since 2.5.0
	 * @param array $post_types Array of post types (slugs or objects)
	 * @return array Sanitized post types array
	 */
	private static function sanitize_visibility_post_types(array $post_types): array
	{
		$sanitized = [];
		foreach ($post_types as $post_type) {
			if (is_array($post_type)) {
				// New format: {name (slug), label}
				$slug = isset($post_type['name']) ? sanitize_key($post_type['name']) : '';
				if (!empty($slug)) {
					$item = ['name' => $slug];
					if (isset($post_type['label'])) {
						$item['label'] = sanitize_text_field($post_type['label']);
					}
					$sanitized[] = $item;
				}
			} else {
				// Old format: just slug
				$slug = sanitize_key($post_type);
				if (!empty($slug)) {
					$sanitized[] = $slug;
				}
			}
		}
		return array_values($sanitized);
	}
}