<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;

class StockLedger extends Model
{
    protected $table = 'stock_ledger';

    public const TYPE_OPENING = 'opening';
    public const TYPE_PURCHASE_RECEIPT = 'purchase_receipt';
    public const TYPE_TRANSFER_OUT = 'transfer_out';
    public const TYPE_TRANSFER_IN = 'transfer_in';
    public const TYPE_SALE = 'sale';
    public const TYPE_SALE_RESERVE = 'sale_reserve';
    public const TYPE_SALE_RELEASE = 'sale_release';
    public const TYPE_ADJUSTMENT = 'adjustment';
    public const TYPE_DAMAGE = 'damage';
    public const TYPE_CYCLE_COUNT = 'cycle_count';
    public const TYPE_RETURN = 'return';
    public const TYPE_RESTOCK = 'restock';

    protected $fillable = [
        'location_id',
        'product_id',
        'type',
        'quantity',
        'balance_after',
        'reference_type',
        'reference_id',
        'notes',
        'created_by',
    ];

    protected function casts(): array
    {
        return [
            'quantity' => 'integer',
            'balance_after' => 'integer',
        ];
    }

    public function location(): BelongsTo
    {
        return $this->belongsTo(Location::class);
    }

    public function product(): BelongsTo
    {
        return $this->belongsTo(Product::class);
    }

    public function creator(): BelongsTo
    {
        return $this->belongsTo(User::class, 'created_by');
    }
}