<?php

namespace App\Models;

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

class PurchaseOrder extends Model
{
    use HasFactory;

    protected $fillable = ['po_number', 'supplier_id', 'purchase_request_id', 'po_date', 'expected_delivery_date', 'total_amount', 'status', 'notes', 'created_by'];

    protected $casts = [
        'po_date' => 'date',
        'expected_delivery_date' => 'date',
        'total_amount' => 'decimal:2',
    ];

    public function supplier()
    {
        return $this->belongsTo(Supplier::class);
    }

    public function purchaseRequest()
    {
        return $this->belongsTo(PurchaseRequest::class);
    }

    public function items()
    {
        return $this->hasMany(PurchaseOrderItem::class);
    }

    public function goodsReceiptNotes()
    {
        return $this->hasMany(GoodsReceiptNote::class);
    }

    public function supplierInvoices()
    {
        return $this->hasMany(SupplierInvoice::class);
    }

    public function createdBy()
    {
        return $this->belongsTo(\App\Models\User::class, 'created_by');
    }
}