<?php
/**
 * Admin menu registration.
 *
 * @package ZeroSpamForms
 */

namespace TwoOTwoCode\ZeroSpamForms\Admin;

defined( 'ABSPATH' ) || exit;

use TwoOTwoCode\ZeroSpamForms\Admin\Pages\SettingsPage;
use TwoOTwoCode\ZeroSpamForms\Core\Assets\AdminAssetManager;
use TwoOTwoCode\ZeroSpamForms\Core\Security\Capability;

/**
 * Registers the Settings > 2o2code Spamless Forms page.
 */
final class AdminMenu {
	/**
	 * Settings page slug.
	 */
	public const PAGE_SLUG = '2o2code-spamless-forms';

	/**
	 * Settings page renderer.
	 *
	 * @var SettingsPage
	 */
	private $settings_page;

	/**
	 * Admin asset manager.
	 *
	 * @var AdminAssetManager
	 */
	private $asset_manager;

	/**
	 * Registered WordPress page hook.
	 *
	 * @var string
	 */
	private $page_hook = '';

	/**
	 * Constructor.
	 *
	 * @param SettingsPage      $settings_page Settings page renderer.
	 * @param AdminAssetManager $asset_manager Admin asset manager.
	 */
	public function __construct( SettingsPage $settings_page, AdminAssetManager $asset_manager ) {
		$this->settings_page = $settings_page;
		$this->asset_manager = $asset_manager;
	}

	/**
	 * Register admin hooks.
	 */
	public function register_hooks(): void {
		if ( ! function_exists( 'add_action' ) ) {
			return;
		}

		add_action( 'admin_menu', array( $this, 'register_menu' ) );
		add_action( 'admin_enqueue_scripts', array( $this, 'maybe_enqueue_assets' ) );
	}

	/**
	 * Register the settings submenu page.
	 */
	public function register_menu(): void {
		if ( ! function_exists( 'add_options_page' ) ) {
			return;
		}

		$this->page_hook = (string) add_options_page(
			__( '2o2code Spamless Forms', '2o2code-spamless-forms' ),
			__( '2o2code Spamless Forms', '2o2code-spamless-forms' ),
			Capability::MANAGE_SETTINGS,
			self::PAGE_SLUG,
			array( $this->settings_page, 'render' )
		);
	}

	/**
	 * Enqueue assets only on the 2o2code Spamless Forms settings page.
	 *
	 * @param string $hook_suffix Current admin page hook suffix.
	 */
	public function maybe_enqueue_assets( $hook_suffix ): void {
		if ( '' === $this->page_hook || $this->page_hook !== (string) $hook_suffix ) {
			return;
		}

		$this->asset_manager->enqueue();
	}
}