<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;

class PurchaseOrderItem extends Model
{
    use HasFactory;

    protected $fillable = [
        'purchase_order_id',
        'product_id',
        'quantity',
        'unit_price',
        'subtotal',
        'received_quantity',
    ];

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

    protected $appends = [
        'productName',
        'unit',
        'productId',
        'unitPrice',
    ];

    public function getProductIdAttribute(): string
    {
        return (string) $this->attributes['product_id'];
    }

    public function getUnitPriceAttribute(): float
    {
        return (float) $this->attributes['unit_price'];
    }

    public function getProductNameAttribute(): string
    {
        return $this->product ? $this->product->name : '';
    }

    public function getUnitAttribute(): string
    {
        return $this->product ? $this->product->base_unit : '';
    }

    public function purchaseOrder(): BelongsTo
    {
        return $this->belongsTo(PurchaseOrder::class);
    }

    public function product(): BelongsTo
    {
        return $this->belongsTo(Product::class);
    }
}