From 2721ccd23c6886ae1ceef2c55a43aab2b30ede05 Mon Sep 17 00:00:00 2001
From: priojk <priojk@users.noreply.github.com>
Date: Wed, 29 Mar 2023 11:43:31 +0200
Subject: [PATCH] add hook to modify amount to pay

---
 htdocs/compta/facture/prelevement.php | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/htdocs/compta/facture/prelevement.php b/htdocs/compta/facture/prelevement.php
index 319b93c4dcb..17b45162974 100644
--- a/htdocs/compta/facture/prelevement.php
+++ b/htdocs/compta/facture/prelevement.php
@@ -676,6 +676,16 @@ if ($object->id > 0) {
 
 	$resteapayer = price2num($object->total_ttc - $totalpaid - $totalcreditnotes - $totaldeposits, 'MT');
 
+	// Hook to change amount for other reasons, e.g. apply cash discount for payment before agreed date
+	$parameters = array('remaintopay' => $resteapayer);
+	$reshook = $hookmanager->executeHooks('finalizeAmountOfSupplierInvoice', $parameters, $object, $action); // Note that $action and $object may have been modified by some hooks
+	if ($reshook > 0) {
+		print $hookmanager->resPrint;
+		if (!empty($remaintopay = $hookmanager->resArray['remaintopay'])) {
+			$resteapayer = $remaintopay;
+		}
+	}
+
 	// TODO Replace this by an include with same code to show already done payment visible in invoice card
 	print '<tr><td>'.$langs->trans('RemainderToPay').'</td><td class="nowrap">'.price($resteapayer, 1, '', 1, - 1, - 1, $conf->currency).'</td></tr>';