<?php

namespace App\Modules\Procurement\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use App\Modules\Inventory\Models\Product;

class PurchaseOrderItem extends Model
{
    /** @use HasFactory<\Database\Factories\PurchaseOrderItemFactory> */
    use HasFactory;

    protected $fillable = [
        'purchase_order_id',
        'product_id',
        'quantity',
        'unit_price',
        'subtotal',
        // 驗收欄位
        'received_quantity',
        // 批號與效期 (驗收時填寫)
        'batch_number',
        'expiry_date',
    ];

    protected $casts = [
        'quantity' => 'decimal:2',
        'unit_price' => 'decimal:4',
        'subtotal' => 'decimal:2',
        'received_quantity' => 'decimal:2',
        'expiry_date' => 'date',
    ];

    public function purchaseOrder(): \Illuminate\Database\Eloquent\Relations\BelongsTo
    {
        return $this->belongsTo(PurchaseOrder::class);
    }

    public function product(): \Illuminate\Database\Eloquent\Relations\BelongsTo
    {
        return $this->belongsTo(Product::class);
    }
}