<?php

namespace App\Domains\Purchase\Services\Checkout;

use App\Domains\Purchase\Models\Purchase;
use Illuminate\Support\Facades\DB;
use Illuminate\Validation\ValidationException;

class EditCheckoutService
{
    /** @param array<string, string> $customerData */
    public function updateCustomer(Purchase $purchase, array $customerData): Purchase
    {
        return DB::transaction(function () use ($purchase, $customerData): Purchase {
            $purchase = $this->lockPurchase($purchase);
            $this->assertEditable($purchase);

            $purchase->update($customerData);

            return $this->loadPurchase($purchase);
        });
    }

    private function assertEditable(Purchase $purchase): void
    {
        if (
            ! in_array($purchase->status, [
                Purchase::STATUS_CREATED,
                Purchase::STATUS_PENDING_PAYMENT,
            ], true)
            || $this->hasExpired($purchase)
        ) {
            throw ValidationException::withMessages([
                'purchase' => __('api.purchase.not_editable'),
            ]);
        }
    }

    private function hasExpired(Purchase $purchase): bool
    {
        return $purchase->expires_at !== null && $purchase->expires_at->isPast();
    }

    private function lockPurchase(Purchase $purchase): Purchase
    {
        /** @var Purchase */
        return Purchase::query()->lockForUpdate()->findOrFail($purchase->getKey());
    }

    private function loadPurchase(Purchase $purchase): Purchase
    {
        return $purchase->load([
            'items.imageAttachment',
            'cart.items.catalogItem.inventory',
            'cart.items.catalogItem.attachments',
            'cart.items.variant.inventory',
            'cart.items.variant.attachments',
            'cart.items.variant.definitions.itemAttribute.attribute',
            'cart.items.variant.eventDates',
            'cart.items.variant.eventDate',
        ]);
    }
}