<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;
use Illuminate\Database\Eloquent\Relations\HasMany;

class GoodsReceipt extends Model
{
    public const STATUS_DRAFT = 'draft';
    public const STATUS_POSTED = 'posted';
    public const STATUS_CANCELLED = 'cancelled';

    protected $fillable = [
        'grn_number',
        'location_id',
        'purchase_order_id',
        'stock_transfer_id',
        'status',
        'notes',
        'received_by',
        'received_at',
    ];

    protected function casts(): array
    {
        return [
            'received_at' => 'datetime',
        ];
    }

    public function location(): BelongsTo
    {
        return $this->belongsTo(Location::class);
    }

    public function purchaseOrder(): BelongsTo
    {
        return $this->belongsTo(PurchaseOrder::class);
    }

    public function stockTransfer(): BelongsTo
    {
        return $this->belongsTo(StockTransfer::class);
    }

    public function items(): HasMany
    {
        return $this->hasMany(GoodsReceiptItem::class);
    }

    public function receiver(): BelongsTo
    {
        return $this->belongsTo(User::class, 'received_by');
    }
}