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Editing: class-menu-manager.php

<?php

namespace Simple_History;

/**
 * Menu manager class that handles registration and organization of admin menu pages.
 */
class Menu_Manager {
	/** @var array<int,Menu_Page> Array of all registered menu pages. */
	private $pages = [];

/**
	 * Add a page to be managed.
	 *
	 * @param Menu_Page $page Page object to add.
	 * @return self
	 */
	public function add_page( Menu_Page $page ) {
		$this->pages[] = $page;

return $this;
	}

/**
	 * Get a page by its slug.
	 *
	 * @param string $slug Page slug.
	 * @return Menu_Page|null Menu page if found, null if not found.
	 */
	public function get_page_by_slug( $slug ) {
		foreach ( $this->pages as $page ) {
			if ( $page->get_menu_slug() === $slug ) {
				return $page;
			}
		}

return null;
	}

/**
	 * Get all registered pages.
	 *
	 * @return array<int,Menu_Page>
	 */
	public function get_pages() {
		$pages = $this->pages;

/**
		 * Filter pages returned.
		 *
		 * @param array<int,Menu_Page> $pages Array of all registered menu pages.
		 */
		$pages = apply_filters( 'simple_history/menu_manager/get_pages', $pages );

return $pages;
	}

/**
	 * Get pages sorted by their order.
	 */
	public function get_pages_ordered() {
		$pages = $this->get_pages();

// Sort pages by order.
		usort(
			$pages,
			function ( $a, $b ) {
				return $a->get_order() - $b->get_order();
			}
		);

return $pages;
	}

/**
	 * Register all menu pages with WordPress.
	 * Called during admin_menu.
	 */
	public function register_pages() {
		foreach ( $this->get_pages_ordered() as $page ) {
			$location = $page->get_location();

switch ( $location ) {
				case 'menu_top':
					$this->add_top_level_menu_page( $page );
					break;
				case 'menu_bottom':
					$this->add_top_level_menu_page( $page, 'bottom' );
					break;
				case 'dashboard':
					$this->add_dashboard_page( $page );
					break;
				case 'options':
					$this->add_options_page( $page );
					break;
				case 'tools':
					$this->add_tools_page( $page );
					break;
				case 'submenu':
				case 'submenu_default':
					$this->add_submenu_page( $page );
					break;
				default:
					// Handle sub-pages that have parent set but no explicit location.
					if ( $page->get_parent() ) {
						$parent_location                     = $page->get_parent()->get_location();
						$parents_where_children_becomes_tabs = [ 'tools', 'dashboard', 'options' ];

// If parent of a page is "tools", "dashboard", or "options"
						// Then it can not be added using wp default functions
						// it can only be added as a simple history tab and then subtab.
						// So check that parent is not in $non_wp_locations.
						if ( ! in_array( $parent_location, $parents_where_children_becomes_tabs, true ) ) {
							$this->add_submenu_page( $page );
						}
					}
			}
		}
	}

/**
	 * Add a top level menu page.
	 *
	 * @param Menu_Page $page Page to add.
	 * @param string    $position 'top' or 'bottom', determines menu position.
	 */
	private function add_top_level_menu_page( Menu_Page $page, $position = 'top' ) {
		// Add History page as a main menu item, at the root.
		// For example Jetpack adds itself at prio 3. We add it at prio 3.5 to be below Jetpack but above posts.
		$menu_position = $position === 'bottom' ? 80 : 3.5;

$hook_suffix = add_menu_page(
			$page->get_page_title(),
			$page->get_menu_title(),
			$page->get_capability(), // phpcs:ignore WordPress.WP.Capabilities.Undetermined -- Filterable.
			$page->get_menu_slug(),
			[ $page, 'render' ],
			$page->get_icon(),
			$menu_position
		);