<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;

class CartItem extends Model
{
    use HasFactory;

    public $timestamps = false;

    protected $fillable = [
        'cart_id',
        'product_id',
        'qty',
        'price_at_add',
    ];

    protected function casts(): array
    {
        return [
            'qty' => 'integer',
            'price_at_add' => 'decimal:2',
        ];
    }

    public function cart()
    {
        return $this->belongsTo(Cart::class);
    }

    public function product()
    {
        return $this->belongsTo(Product::class);
    }

    public function getLineTotalAttribute(): float
    {
        return $this->qty * $this->price_at_add;
    }
}