feat: updates

app/Commands/Expenses/GenerateVoucher.php

@@ -0,0 +1,23 @@
+<?php
+
+namespace App\Commands\Expenses;
+
+use App\Models\Branch;
+use App\Models\Expense;
+
+class GenerateVoucher
+{
+    public static function execute(Branch $branch): string
+    {
+        $year = now()->format('y');
+        $lastVoucher = Expense::query()->where('branch_id', $branch->id)->orderBy('created_at', 'desc')->first();
+
+        if (! $lastVoucher) {
+            return $year.'-'.str_pad(1, 6, '0', STR_PAD_LEFT);
+        }
+
+        $voucherNumber = (int) explode('-', $lastVoucher->voucher_number)[1];
+
+        return $year.'-'.str_pad($voucherNumber + 1, 6, '0', STR_PAD_LEFT);
+    }
+}