<?php

namespace App\Observers;

use App\Models\Order;

class OrderObserver
{
    /**
     * Handle the Order "creating" event.
     */
    public function creating(Order $order): void
    {
        $date = $order->created_at ?? now();

        $lastOrder = Order::whereDate('created_at', $date->format('Y-m-d'))
            ->lockForUpdate()
            ->count();

        $sequence = str_pad($lastOrder + 1, 3, '0', STR_PAD_LEFT);
        $order->order_number = 'ORD-'.$date->format('Ymd').'-'.$sequence;

        if (! $order->user_id) {
            $order->user_id = auth()->id();
        }

        $order->total = $order->subtotal - $order->discount;
    }

    /**
     * Handle the Order "deleting" event.
     */
    public function deleting(Order $order): void
    {
        foreach ($order->items as $item) {
            $item->product->increment('stock', $item->qty);
        }
    }
}