<?php

namespace App\Services\PayPal;

use App\Models\GiftVoucher;
use App\Services\GiftVouchers\GiftVoucherService;
use Illuminate\Support\Arr;

class PayPalGiftVoucherWebhookService
{
    public function __construct(private readonly GiftVoucherService $vouchers) {}

    /**
     * @param  array<string, mixed>  $event
     */
    public function handle(array $event): bool
    {
        $eventType = $event['event_type'] ?? null;
        $resource = $event['resource'] ?? null;

        if (! is_string($eventType) || ! is_array($resource)) {
            return false;
        }

        $normalized = strtoupper($eventType);

        if (! in_array($normalized, [
            'PAYMENT.CAPTURE.COMPLETED',
            'PAYMENT.CAPTURE.REFUNDED',
            'CHECKOUT.ORDER.COMPLETED',
        ], true)) {
            return false;
        }

        $orderId = $this->resolveOrderId($normalized, $resource);

        if (! $orderId) {
            return false;
        }

        $voucher = GiftVoucher::query()
            ->where('paypal_order_id', $orderId)
            ->first();

        if (! $voucher) {
            return false;
        }

        if (in_array($normalized, ['PAYMENT.CAPTURE.COMPLETED', 'CHECKOUT.ORDER.COMPLETED'], true)) {
            $this->vouchers->issueFromPayPal($voucher, $resource, $orderId);

            return true;
        }

        if ($normalized === 'PAYMENT.CAPTURE.REFUNDED') {
            $this->vouchers->markRefundedFromPayPal($voucher, $resource);

            return true;
        }

        return false;
    }

    /**
     * @param  array<string, mixed>  $resource
     */
    protected function resolveOrderId(string $eventType, array $resource): ?string
    {
        if (str_starts_with($eventType, 'PAYMENT.CAPTURE.')) {
            $relatedOrderId = Arr::get($resource, 'supplementary_data.related_ids.order_id');

            return is_string($relatedOrderId) && $relatedOrderId !== '' ? $relatedOrderId : null;
        }

        $orderId = $resource['id'] ?? null;

        return is_string($orderId) && $orderId !== '' ? $orderId : null;
    }
}