<?php

namespace Modules\MaterialLogistics\Services;

use Modules\MaterialLogistics\Models\MaterialRequisition;
use Modules\MaterialLogistics\Models\PurchaseOrder;

class DocumentNumberService
{
    public function nextMrNumber(): string
    {
        $year = now()->format('Y');
        $prefix = "MR-{$year}-";

        $last = MaterialRequisition::where('document_number', 'like', "{$prefix}%")
            ->orderByDesc('document_number')
            ->value('document_number');

        $nextSeq = 1;
        if ($last) {
            $seq = (int) str_replace($prefix, '', $last);
            $nextSeq = $seq + 1;
        }

        return $prefix . str_pad($nextSeq, 4, '0', STR_PAD_LEFT);
    }

    public function nextPoNumber(): string
    {
        $year = now()->format('Y');
        $prefix = "PO-{$year}-";

        $last = PurchaseOrder::where('document_number', 'like', "{$prefix}%")
            ->orderByDesc('document_number')
            ->value('document_number');

        $nextSeq = 1;
        if ($last) {
            $seq = (int) str_replace($prefix, '', $last);
            $nextSeq = $seq + 1;
        }

        return $prefix . str_pad($nextSeq, 4, '0', STR_PAD_LEFT);
    }
}