<?php
/**
 * Central lifecycle coordinator for Admin Optimizer's admin runtime.
 *
 * Owns the request-local Runtime_Loader, boots standalone (Section-less)
 * modules, initializes Sections early enough to register their `init`
 * hooks, and registers top-level admin-menu and module-activation
 * endpoints. See ARCHITECTURE_V3.md Section 3.
 *
 * @package admin-optimizer
 */

namespace Yipresser\AdminOptimizer\Admin;

// Exit if accessed directly.
if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

use Yipresser\AdminOptimizer\Section\{Overview, Performance, Content, Media, SEO, Users, Security, Post_Types_Fields, System};
use Yipresser\AdminOptimizer\Support\Notification;
use Yipresser\AdminOptimizer\Module_Registry;
use Yipresser\AdminOptimizer\Runtime_Loader;


if ( ! defined( 'ADMINOPTIMIZER_MODULES_MENU_SLUG' ) ) {
	define( 'ADMINOPTIMIZER_MODULES_MENU_SLUG', 'admin-optimizer' ); // Keep the slug to be the same as the free version. Do not change this.
}

if ( ! defined( 'ADMINOPTIMIZER_PRO_TITLE' ) ) {
	define( 'ADMINOPTIMIZER_TITLE', 'Admin Optimizer' );
} else {
	define( 'ADMINOPTIMIZER_TITLE', ADMINOPTIMIZER_PRO_TITLE );
}

if ( ! defined( 'ADMINOPTIMIZER_ADMIN_URI' ) ) {
	define( 'ADMINOPTIMIZER_ADMIN_URI', ADMINOPTIMIZER_URI . 'admin/' );
}

if ( ! defined( 'ADMINOPTIMIZER_ADMIN_PATH' ) ) {
	define( 'ADMINOPTIMIZER_ADMIN_PATH', ADMINOPTIMIZER_PATH . 'admin/' );
}

if ( ! defined( 'ADMINOPTIMIZER_MODULES_URI' ) ) {
	define( 'ADMINOPTIMIZER_MODULES_URI', ADMINOPTIMIZER_URI . 'modules/' );
}

if ( ! defined( 'ADMINOPTIMIZER_MODULES_PATH' ) ) {
	define( 'ADMINOPTIMIZER_MODULES_PATH', ADMINOPTIMIZER_PATH . 'modules/' );
}

const MODULES_OPTION = 'adminoptim-modules';

/**
 * Modules Singleton class
 */
final class Bootstrap {

	const MENU_SVG_ICON = 'data:image/svg+xml;base64,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';

	/**
	 * Single Instance
	 *
	 * @var null
	 */
	protected static $instance = null;

	/**
	 * Settings class
	 *
	 * @var Admin_Settings
	 */
	protected $settings;

	/**
	 * User options
	 *
	 * @var false|mixed|null
	 */
	protected $options;

	/**
	 * Runtime loader
	 *
	 * @var Runtime_Loader
	*/
	private $runtime_loader;

	/**
	 * Initialize a singleton instance
	 *
	 * @return self|null
	 */
	public static function get_instance() {
		if ( is_null( self::$instance ) ) {
			self::$instance = new self();
		}

		return self::$instance;
	}
	/**
	 * Constructor
	 */
	private function __construct() {
		$this->options = get_option( MODULES_OPTION, [] );
		$this->includes();
		$this->runtime_loader = new Runtime_Loader();
		add_action( 'admin_enqueue_scripts', [ $this, 'register_scripts' ], 1 );
		$this->load_standalone_modules();
		$this->load_sections();
		$this->init_admin_menu();
		$this->init_module_activation();
		$this->init_quick_start();
		$this->init_command_palette();
	}
	/**
	 * Include required files
	 *
	 * @return void
	 */
	private function includes() {
		require_once ADMINOPTIMIZER_PATH . 'includes/functions.php';
	}

	/**
	 * Boot modules that have no owning Section.
	 *
	 * Form Builder is currently the only such module: it is registered in
	 * `Module_Registry` with `'section' => 'forms'`, but no `Forms` Section
	 * class exists yet to declare it through `section_nav_modules()`, so it
	 * is booted directly here rather than through a Section (ARCHITECTURE_V3.md
	 * Section 7.8).
	 *
	 * @return void
	 */
	private function load_standalone_modules() {
		$this->runtime_loader->boot_module( 'form_builder' );
	}

	/**
	 * Initialize all sections
	 *
	 * @return void
	 */
	private function load_sections() {
		Notification::get_instance();
		$sections                      = [];
		$sections['overview']          = new Overview();
		$sections['performance']       = new Performance( $this->runtime_loader );
		$sections['security']          = new Security( $this->runtime_loader );
		$sections['seo']               = new SEO( $this->runtime_loader );
		$sections['content']           = new Content( $this->runtime_loader );
		$sections['media']             = new Media( $this->runtime_loader );
		$sections['post_types_fields'] = new Post_Types_Fields( $this->runtime_loader );
		$sections['users']             = new Users( $this->runtime_loader );
		$sections['system']            = new System( $this->runtime_loader );
		foreach ( $sections as $section ) {
			$section->init();
		}
	}

	/**
	 * Setup admin menu
	 *
	 * @return void
	 */
	private function init_admin_menu() {
		add_action( 'admin_menu', [ $this, 'add_menu' ] );
	}

	/**
	 * Add admin menu
	 *
	 * @return void
	 */
	public function add_menu() {
		$menu_title = __( 'Optimize', 'admin-optimizer' );
		$page_title = __( 'Admin Optimizer', 'admin-optimizer' );

		add_menu_page( $page_title, $menu_title, 'manage_options', ADMINOPTIMIZER_MODULES_MENU_SLUG, '', self::MENU_SVG_ICON );

		do_action( 'adminoptimizer_add_submenu_page' );

		self::add_pinned_menu();
	}

	/**
	 * Register one submenu entry per pinned module still available, below
	 * every real Section route (every Section's own `add_submenu()` has
	 * already run by the time this is called from `add_menu()`, immediately
	 * after `adminoptimizer_add_submenu_page`).
	 *
	 * Each pinned module gets a distinct, `adminoptim-pinned-`-prefixed slug
	 * so it can never collide with a real Section route — not the module's
	 * real resolved URL. A slug containing `://` is a known WordPress trick
	 * for an external-style menu link, but it did not render reliably here
	 * (every such entry collapsed to the parent Optimize page's own URL), so
	 * each entry instead gets a real internal page whose only job is to
	 * redirect. That redirect must fire on `load-{$hook_suffix}`, not in the
	 * page callback: by the time WordPress calls the callback it has already
	 * `include`d admin-header.php and sent output, so `wp_safe_redirect()`
	 * there fails silently ("headers already sent"). `load-{$hook_suffix}`
	 * fires earlier, while admin.php is still resolving the page.
	 *
	 * A pinned module that has since become unavailable is silently dropped
	 * rather than surfaced as an error. Static and independent of `$this` so
	 * it stays directly callable/testable without constructing the
	 * Bootstrap singleton (which has no dedicated test coverage today).
	 *
	 * @return void
	 */
	public static function add_pinned_menu(): void {
		$first_slug = '';

		foreach ( (array) get_option( Module_Activation::PIN_OPTION, [] ) as $module_id ) {
			$module_id = sanitize_key( (string) $module_id );

			if (
				'' === $module_id
				|| ! Module_Registry::is_available( $module_id )
				|| ! current_user_can( Module_Registry::get_settings_capability( $module_id ) )
			) {
				continue;
			}

			$module = Module_Registry::get_module( $module_id );

			if ( null === $module ) {
				continue;
			}

			$submenu_slug = 'adminoptim-pinned-' . $module_id;

			$hook_suffix = add_submenu_page(
				ADMINOPTIMIZER_MODULES_MENU_SLUG,
				$module['name'],
				$module['name'],
				'manage_options',
				$submenu_slug,
				'__return_null'
			);

			if ( is_string( $hook_suffix ) ) {
				add_action(
					"load-{$hook_suffix}",
					static function () use ( $module_id ) {
						wp_safe_redirect( Module_Registry::get_module_url( $module_id ) );
						exit;
					}
				);
			}

			if ( '' === $first_slug ) {
				$first_slug = $submenu_slug;
			}
		}

		if ( '' !== $first_slug ) {
			add_action(
				'admin_head',
				static function () use ( $first_slug ) {
					?>
					<style>
						#adminmenu a[href$="page=<?php echo esc_attr( $first_slug ); ?>"] {
							border-top: 1px solid #dcdcde;
							margin-top: 6px;
							padding-top: 6px;
						}
					</style>
					<?php
				}
			);
		}
	}

	/**
	 * Lifecycle point for the shared Free module-activation write path.
	 * This is the single AJAX endpoint any rendering surface uses to change
	 * an ordinary `MODULE` capability's canonical ON/OFF state.
	 * Registered unconditionally; the handler itself enforces
	 * authentication/capability/nonce/classification/availability.
	 *
	 * @return void
	 */
	private function init_module_activation(): void {
		( new Module_Activation() )->register();
	}

	/**
	 * Lifecycle point for the Overview Quick Start card's AJAX endpoints
	 * (hide/restore, review-popup data, apply). Registered unconditionally;
	 * each handler enforces its own capability/nonce checks.
	 *
	 * @return void
	 */
	private function init_quick_start(): void {
		( new Quick_Start() )->register();
	}

	/**
	 * Lifecycle point for registering every navigable module into the
	 * WordPress admin-wide command palette (Cmd/Ctrl+K).
	 *
	 * @return void
	 */
	private function init_command_palette(): void {
		( new Command_Palette() )->register();
	}

	/**
	 * Register shared admin script/style handles for later enqueueing.
	 *
	 * @return void
	 */
	public function register_scripts() {
		wp_register_script( 'adminoptim-select2', ADMINOPTIMIZER_ADMIN_URI . 'assets/js/select2.min.js', [], ADMINOPTIMIZER_VERSION, true );
		wp_register_style( 'adminoptim-select2-style', ADMINOPTIMIZER_ADMIN_URI . 'assets/css/select2.min.css', [], ADMINOPTIMIZER_VERSION );
		wp_register_style( 'adminoptim-modules-pro-settings', ADMINOPTIMIZER_ADMIN_URI . 'assets/css/modules-pro-settings.min.css', [], ADMINOPTIMIZER_VERSION );
		wp_register_style( 'adminoptim-module-settings', ADMINOPTIMIZER_ADMIN_URI . 'assets/css/module-settings.min.css', [], ADMINOPTIMIZER_VERSION );
	}
}