<?php
/**
 * Admin menu registration.
 *
 * @package Kayvandra\MarginBeacon
 */

declare(strict_types=1);

namespace Kayvandra\MarginBeacon\Admin\Navigation;

use Kayvandra\MarginBeacon\Support\Capabilities;
use Kayvandra\MarginBeacon\Support\Constants;

/**
 * Registers a single MarginBeacon entry under WooCommerce.
 */
final class Menu {

	/**
	 * Register menus.
	 *
	 * @return void
	 */
	public function register() {
		add_action( 'admin_menu', array( $this, 'add_menu' ), 60 );
		add_action( 'admin_enqueue_scripts', array( $this, 'assets' ) );
	}

	/**
	 * One submenu under WooCommerce; screens live as tabs.
	 *
	 * @return void
	 */
	public function add_menu() {
		if ( ! Capabilities::current_user_can_manage() ) {
			return;
		}

		add_submenu_page(
			'woocommerce',
			__( 'MarginBeacon', 'marginbeacon' ),
			__( 'MarginBeacon', 'marginbeacon' ),
			Constants::CAP_MANAGE,
			'marginbeacon',
			array( new AdminApp(), 'render' )
		);

		/*
		 * Legacy slugs (pre-tab IA) stay registered under options.php so they
		 * remain accessible but hidden. Callbacks redirect into tab URLs.
		 * Do NOT remove_submenu_page() — that breaks user_can_access_admin_page()
		 * before admin_init can redirect (403).
		 */
		foreach ( array_keys( Tabs::legacy_map() ) as $legacy_slug ) {
			add_submenu_page(
				'options.php',
				'MarginBeacon',
				'MarginBeacon',
				Constants::CAP_MANAGE,
				$legacy_slug,
				array( $this, 'render_legacy_redirect' )
			);
		}
	}

	/**
	 * Redirect old submenu bookmarks into the tabbed shell.
	 *
	 * @return void
	 */
	public function render_legacy_redirect() {
		$page = isset( $_GET['page'] ) ? sanitize_key( wp_unslash( $_GET['page'] ) ) : ''; // phpcs:ignore WordPress.Security.NonceVerification.Recommended
		$map  = Tabs::legacy_map();
		$tab  = isset( $map[ $page ] ) ? $map[ $page ] : Tabs::DASHBOARD;

		$args = array();
		foreach ( array( 'step', 'scan_id', 'ran' ) as $key ) {
			if ( isset( $_GET[ $key ] ) ) { // phpcs:ignore WordPress.Security.NonceVerification.Recommended
				$args[ $key ] = sanitize_text_field( wp_unslash( $_GET[ $key ] ) ); // phpcs:ignore WordPress.Security.NonceVerification.Recommended
			}
		}

		wp_safe_redirect( Tabs::url( $tab, $args ) );
		exit;
	}

	/**
	 * Enqueue admin assets on MarginBeacon and Orders screens.
	 *
	 * @param string $hook Hook suffix.
	 * @return void
	 */
	public function assets( $hook ) {
		$screen = function_exists( 'get_current_screen' ) ? get_current_screen() : null;
		$load   = false;

		if ( false !== strpos( (string) $hook, 'marginbeacon' ) || false !== strpos( (string) $hook, 'wc-orders' ) ) {
			$load = true;
		}

		if ( $screen ) {
			$id = (string) $screen->id;
			if (
				false !== strpos( $id, 'marginbeacon' )
				|| false !== strpos( $id, 'wc-orders' )
				|| 'edit-shop_order' === $id
				|| 'shop_order' === $id
			) {
				$load = true;
			}
		}

		if ( ! $load ) {
			return;
		}

		$css_path = AKSMB_PLUGIN_DIR . 'assets/css/admin.css';
		$css_ver  = AKSMB_VERSION;
		if ( is_readable( $css_path ) ) {
			$css_ver .= '.' . (string) filemtime( $css_path );
		}

		wp_enqueue_style(
			'marginbeacon-admin',
			AKSMB_PLUGIN_URL . 'assets/css/admin.css',
			array(),
			$css_ver
		);
	}
}