<?php

namespace App\Domains\Cart\Services;

use App\Domains\Cart\Models\Cart;
use App\Domains\Catalog\Models\StockReservation;
use App\Domains\Catalog\Services\StockReservationService;
use App\Domains\Purchase\Models\Purchase;
use App\Domains\Tenant\Models\Tenant;
use Illuminate\Support\Collection;
use Illuminate\Support\Facades\DB;

class InvalidateEventDateCartsService
{
    public function __construct(private readonly StockReservationService $reservations) {}

    /** @param Collection<int, int> $eventDateIds */
    public function invalidate(
        Tenant $tenant,
        Collection $eventDateIds,
        string $reason = StockReservationService::REASON_EVENT_DATE_RESCHEDULED,
    ): void {
        DB::transaction(function () use ($tenant, $eventDateIds, $reason): void {
            $carts = Cart::query()
                ->where('tenant_codigo', $tenant->codigo)
                ->where('status', Cart::STATUS_ACTIVE)
                ->whereNull('current_purchase_id')
                ->whereHas('currentStockReservation', fn ($reservation) => $reservation
                    ->where('status', StockReservation::STATUS_ACTIVE))
                ->whereHas('items.variant', fn ($variant) => $variant
                    ->withTrashed()
                    ->where(fn ($dates) => $dates
                        ->whereIn('event_date_id', $eventDateIds)
                        ->orWhereHas('eventDates', fn ($date) => $date
                            ->whereIn('event_dates.id', $eventDateIds))))
                ->orderBy('id')
                ->lockForUpdate()
                ->get();

            foreach ($carts as $cart) {
                // Checkout keeps the cart and purchase attached to the same reservation.
                if (Purchase::query()
                    ->where('stock_reservation_id', $cart->current_stock_reservation_id)
                    ->exists()) {
                    continue;
                }

                $this->reservations->releaseCurrentCartReservation(
                    $cart,
                    $reason,
                );

                // Reuse the existing expired-cart flow: stale mutations receive the
                // expiration response and the next GET replaces the whole cart.
                $cart->update(['status' => Cart::STATUS_EXPIRED]);
            }
        });
    }
}