<?php

namespace Modules\Core\Privacy\Providers;

use Lunar\Models\Cart;
use Lunar\Models\CartAddress;
use Modules\Core\Privacy\Contracts\PersonalDataProvider;
use Modules\Core\Privacy\CustomerSubject;
use Modules\Core\Privacy\ErasureOutcome;
use Modules\Core\Privacy\ProviderErasureResult;
use Modules\Core\Privacy\ProviderExportResult;
use Modules\Core\Privacy\UserSubject;

/**
 * Carts and cart addresses (lunar_carts, lunar_cart_addresses) belong to the
 * Customer (business account) via customer_id, not to an individual User, so this
 * is Customer-scope only. Unlike Order/OrderAddress, an abandoned cart has no
 * legal retention requirement, so its addresses are freely deleted. The Cart row
 * itself is left alone (any completed order it produced is handled separately by
 * OrderDataProvider, which is what retention law actually cares about) — only its
 * address PII is removed.
 */
class CartDataProvider implements PersonalDataProvider
{
    public function name(): string
    {
        return 'carts';
    }

    public function exportForCustomer(CustomerSubject $subject): ProviderExportResult
    {
        $addresses = CartAddress::whereIn('cart_id', Cart::where('customer_id', $subject->customerId)->pluck('id'))->get();

        return new ProviderExportResult('carts', $addresses->map(fn (CartAddress $address) => [
            'type' => $address->type,
            'first_name' => $address->first_name,
            'last_name' => $address->last_name,
            'line_one' => $address->line_one,
            'city' => $address->city,
            'postcode' => $address->postcode,
            'contact_email' => $address->contact_email,
            'contact_phone' => $address->contact_phone,
        ])->all());
    }

    public function exportForUser(UserSubject $subject): ProviderExportResult
    {
        return new ProviderExportResult('carts', []);
    }

    public function eraseForCustomer(CustomerSubject $subject): ProviderErasureResult
    {
        CartAddress::whereIn('cart_id', Cart::where('customer_id', $subject->customerId)->pluck('id'))->delete();

        return new ProviderErasureResult('carts', ErasureOutcome::Erased);
    }

    public function eraseForUser(UserSubject $subject): ProviderErasureResult
    {
        return new ProviderErasureResult('carts', ErasureOutcome::Skipped, 'Carts belong to Customer accounts, not individual users.');
    }
}