<?php
namespace ToDownload\Accounts;

if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

use ToDownload\Data\Orders;

final class Accounts {
	public static function register(): void {
		add_action('wp_login', [self::class, 'on_login'], 10, 2);
		add_action('user_register', [self::class, 'on_user_changed'], 10, 1);
		add_action('profile_update', [self::class, 'on_user_changed'], 10, 1);
	}

	public static function on_login(string $user_login, \WP_User $user): void {
		self::link_user_to_customer((int) $user->ID);
	}

	public static function on_user_changed(int $user_id): void {
		self::link_user_to_customer($user_id);
	}

	private static function link_user_to_customer(int $user_id): void {
		$user_id = (int) $user_id;
		if ($user_id <= 0) {
			return;
		}

		$user = get_user_by('id', $user_id);
		if (!$user) {
			return;
		}

		$email = (string) ($user->user_email ?? '');
		if ($email === '' || !is_email($email)) {
			return;
		}

		Orders::link_customer_user_by_email($email, $user_id);
	}
}