<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;

class ReturnDetail extends Model
{
    protected $fillable = [
        'return_id',
        'sale_detail_id',
        'inventory_id',
        'product_name',
        'quantity_returned',
        'unit_of_measure_id',
        'unit_quantity_returned',
        'unit_price',
        'subtotal',
    ];

    protected $casts = [
        'quantity_returned' => 'decimal:3',
        'unit_quantity_returned' => 'decimal:3',
        'unit_price' => 'decimal:2',
        'subtotal' => 'decimal:2',
    ];

    /**
     * Relación con devolución principal
     */
    public function return()
    {
        return $this->belongsTo(Returns::class, 'return_id');
    }

    /**
     * Relación con detalle de venta original
     */
    public function saleDetail()
    {
        return $this->belongsTo(SaleDetail::class);
    }

    /**
     * Relación con inventario
     */
    public function inventory()
    {
        return $this->belongsTo(Inventory::class);
    }

    /**
     * Seriales devueltos en este detalle
     */
    public function serials()
    {
        return $this->hasMany(InventorySerial::class, 'return_detail_id');
    }

    /**
     * Obtener números de serie devueltos
     */
    public function getSerialNumbersAttribute(): array
    {
        return $this->serials()->pluck('serial_number')->toArray();
    }
}