<?php

namespace App\Services;

use App\Http\Controllers\SettingController;
use App\Models\ShoppingOrder;

/**
 * DHL Data Helper
 *
 * Central class for preparing DHL API data structures
 * Prevents code duplication between DhlShipmentService and CreateShipmentJob
 */
class DhlDataHelper
{
    /**
     * Prepare order data for DHL API v2
     *
     * Structure matches official DHL API v2 createOrders endpoint:
     * https://developer.dhl.com/api-reference/parcel-de-shipping-post-parcel-germany-v2
     *
     * @param  array|null  $dhlConfig  Optional pre-loaded config (for queue jobs)
     */
    public static function prepareOrderData(ShoppingOrder $order, float $weight, array $options = [], ?array $dhlConfig = null): array
    {
        \Log::info('prepareOrderData', $options);
        // die daten für das versandlabel werden immer aus dem Formular genommen, damit anpassungen möglich sind
        if (! isset($options['shipping_address'])) {
            throw new \Exception('shipping_address is required');
        }
        $shippingAddress = $options['shipping_address'];

        // Get DHL configuration for shipper data
        if ($dhlConfig === null) {
            $settingController = new SettingController;
            $dhlConfig = $settingController->getDhlConfig();
        }
        $resolver = new DhlProductResolver;
        $destinationCountryCode = $shippingAddress['country']?->code;
        if (! $destinationCountryCode) {
            throw new \Exception('shipping_address.country is required');
        }

        $resolvedDhlProduct = $resolver->resolveForShipment(
            $destinationCountryCode,
            $options['product_code'] ?? null,
            $dhlConfig['default_product'] ?? 'V01PAK'
        );
        $dimensions = $dhlConfig['dimensions'][$resolvedDhlProduct['product_code']] ?? $dhlConfig['dimensions']['default'];

        return [
            'order_id' => $order->id,
            'weight_kg' => $weight,
            'product_code' => $resolvedDhlProduct['product_code'],
            'label_format' => $options['label_format'] ?? $dhlConfig['label_format'] ?? 'PDF',
            'print_format' => $options['print_format'] ?? $dhlConfig['print_format'] ?? null,
            'retoure_print_format' => $options['retoure_print_format'] ?? $dhlConfig['retoure_print_format'] ?? null,
            'print_only_if_codeable' => (bool) ($options['print_only_if_codeable'] ?? $dhlConfig['print_only_if_codeable'] ?? config('dhl.print_only_if_codeable', true)),

            // Shipper data (sender) - from admin settings
            'shipper' => [
                'name' => $dhlConfig['sender']['company'] ?? 'mivita care gmbh',
                'name2' => $dhlConfig['sender']['name'] ?? '',
                'street' => $dhlConfig['sender']['street'] ?? 'Leinfeld',
                'houseNumber' => $dhlConfig['sender']['house_number'] ?? '2',
                'postalCode' => $dhlConfig['sender']['postalCode'] ?? '87755',
                'city' => $dhlConfig['sender']['city'] ?? 'Kirchhaslach',
                'country' => $dhlConfig['sender']['country'] ?? 'DE',
                'email' => $dhlConfig['sender']['email'] ?? 'versand@mivita.care',
                'phone' => $dhlConfig['sender']['phone'] ?? '+49 123 456789',
            ],

            // Consignee data (recipient) - from modal form (can be modified)
            'consignee' => [
                'name' => trim(($shippingAddress['firstname'] ?? '').' '.($shippingAddress['lastname'] ?? '')),
                'name2' => $shippingAddress['company'] ?? '',
                'street' => $shippingAddress['address'] ?? '',
                'houseNumber' => $shippingAddress['houseNumber'] ?? '',
                'postalCode' => $shippingAddress['zipcode'] ?? '',
                'city' => $shippingAddress['city'] ?? '',
                'country' => $resolvedDhlProduct['country_code'],
                'email' => $shippingAddress['email'] ?? '',
                'phone' => $shippingAddress['phone'] ?? '',
                // DHL Postnummer für Packstation/Paketbox
                'postNumber' => $shippingAddress['postnumber'] ?? null,
                // Store individual fields for easier access
                'firstname' => $shippingAddress['firstname'] ?? '',
                'lastname' => $shippingAddress['lastname'] ?? '',
            ],
            // Package dimensions from options or defaults
            'dimensions' => $dimensions,

            // Additional services
            'services' => $options['services'] ?? [],

            // Custom reference for tracking
            'reference' => self::normalizeReference($options['reference'] ?? $options['shipment_reference'] ?? null, $order),
        ];
    }

    private static function normalizeReference(?string $reference, ShoppingOrder $order): string
    {
        $reference = trim((string) $reference);

        if ($reference === '') {
            return 'Order-'.$order->id;
        }

        return mb_substr(preg_replace('/\s+/', ' ', $reference), 0, 35);
    }
}