<?php

declare(strict_types=1);

namespace Aivie\WooCommerce\WooCommerce;

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

use Aivie\WooCommerce\Support\Logger;
use Aivie\WooCommerce\Support\Options;

class TrackingContactResolver
{
    private const META_KEY = '_aivie_wc_tracking_contact_id';

    /**
     * Capture mode — runs during the checkout POST (browser context present).
     * Reads the Mautic tracking cookie and stores it on order and user meta.
     */
    public function capture(\WC_Order $order): void
    {
        if (! Options::getBool(Options::USE_TRACKING_CONTACT_ID)) {
            return;
        }

        $cookieName = Options::getString(Options::TRACKING_CONTACT_COOKIE) ?: 'mtc_id';
        $raw        = isset($_COOKIE[$cookieName]) ? sanitize_text_field(wp_unslash($_COOKIE[$cookieName])) : '';

        if ('' === (string) $raw) {
            Logger::debug('No tracking contact cookie found during checkout.', [
                'order_id'    => $order->get_id(),
                'cookie_name' => $cookieName,
            ]);
            return;
        }

        $contactId = absint($raw);
        if ($contactId <= 0) {
            Logger::error('Tracking contact cookie value was invalid.', [
                'order_id'    => $order->get_id(),
                'cookie_name' => $cookieName,
            ]);
            return;
        }

        $order->update_meta_data(self::META_KEY, $contactId);
        $order->save_meta_data();

        $customerId = (int) $order->get_customer_id();
        if ($customerId > 0) {
            update_user_meta($customerId, self::META_KEY, $contactId);
        }

        Logger::debug("Captured tracking contact ID {$contactId} for order {$order->get_id()}.");
    }

    /**
     * Read mode — runs at sync time (no browser context assumed).
     * Returns the contact ID or 0 if not found / invalid.
     */
    public function read(\WC_Order $order): int
    {
        if (! Options::getBool(Options::USE_TRACKING_CONTACT_ID)) {
            return 0;
        }

        $fromOrder = absint($order->get_meta(self::META_KEY));
        if ($fromOrder > 0) {
            Logger::debug('Using contact ID from order meta.', [
                'order_id' => $order->get_id(),
            ]);
            return $fromOrder;
        }

        $customerId = (int) $order->get_customer_id();
        if ($customerId > 0) {
            $fromUser = absint(get_user_meta($customerId, self::META_KEY, true));
            if ($fromUser > 0) {
                Logger::debug('Using contact ID from user meta.', [
                    'order_id'    => $order->get_id(),
                    'customer_id' => $customerId,
                ]);
                return $fromUser;
            }
        }

        Logger::debug('No tracking contact ID found for order sync.', [
            'order_id' => $order->get_id(),
        ]);
        return 0;
    }
}