<?php

namespace App\Domains\Purchase\Services\Checkout;

use App\Domains\Purchase\Models\Purchase;

class PurchaseResponseLoader
{
    public function load(Purchase $purchase): Purchase
    {
        $purchase->load(['tenant', 'items.imageAttachment']);

        if ($purchase->items->isEmpty() && $purchase->cart_id !== null) {
            $purchase->load([
                'cart.items.catalogItem.inventory',
                'cart.items.catalogItem.attachments',
                'cart.items.variant.inventory',
                'cart.items.variant.attachments',
                'cart.items.variant.catalogItem',
                'cart.items.variant.definitions.itemAttribute.attribute',
                'cart.items.variant.eventDates',
                'cart.items.variant.eventDate',
            ]);
        }

        if (! $purchase->tenant->checkout_editing_policy->allowsVariantChanges()) {
            return $purchase;
        }

        $purchase->load([
            'items.sourceCatalogItem.itemAttributes.attribute',
            'items.sourceCatalogItem.variants' => fn ($query) => $query->orderBy('id'),
            'items.sourceCatalogItem.variants.inventory',
            'items.sourceCatalogItem.variants.definitions' => fn ($query) => $query->orderBy('id'),
            'items.sourceCatalogItem.variants.definitions.itemAttribute.attribute.options',
            'items.sourceCatalogItem.variants.eventDates',
            'items.sourceCatalogItem.variants.eventDate',
            'cart.items.catalogItem.itemAttributes.attribute',
            'cart.items.catalogItem.variants' => fn ($query) => $query->orderBy('id'),
            'cart.items.catalogItem.variants.inventory',
            'cart.items.catalogItem.variants.definitions' => fn ($query) => $query->orderBy('id'),
            'cart.items.catalogItem.variants.definitions.itemAttribute.attribute.options',
            'cart.items.catalogItem.variants.eventDates',
            'cart.items.catalogItem.variants.eventDate',
        ]);

        return $purchase;
    }
}