From 0ecabe1e47e4a50a2a9a23dc17b36a4686c64ebc Mon Sep 17 00:00:00 2001
From: "max.mehl" <max.mehl@fsfe.org>
Date: Tue, 19 Oct 2021 17:02:34 +0200
Subject: [PATCH] make 0 the smallest reimbursed amount

---
 cgi-bin/perdiem.php | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/cgi-bin/perdiem.php b/cgi-bin/perdiem.php
index f2864e2d52..790a3f0004 100755
--- a/cgi-bin/perdiem.php
+++ b/cgi-bin/perdiem.php
@@ -204,6 +204,11 @@ foreach ($use as $d => $day) {  // calculate for each day
       $reimb_day[$d] = $reimb_day[$d] - $maxamount_full * $rate_dinner;
     }
 
+    // Avoid negative amounts
+    if ($reimb_day[$d] < 0) {
+      $reimb_day[$d] = 0;
+    }
+
     // add on top of total reimbursement
     $reimb_total = $reimb_total + $reimb_day[$d];