From 6259ee6f2a53b6c81a41b37a9c75499fa4ab9d61 Mon Sep 17 00:00:00 2001
From: jstaerk <jstaerk@usegroup.de>
Date: Tue, 10 Jan 2023 19:25:01 +0100
Subject: [PATCH] - allow prepaid amount in invoice class

---
 History.md                                      |  1 +
 .../main/java/org/mustangproject/Invoice.java   | 17 +++++++++++++++++
 2 files changed, 18 insertions(+)

diff --git a/History.md b/History.md
index 943f8c01..e3d71ef6 100644
--- a/History.md
+++ b/History.md
@@ -1,5 +1,6 @@
 - allow Bank credentials without BIC
 - allow minimum profile without delivery date
+- allow prepaid amount in invoice class
 
 2.6.0 "Joyeux Noël"
 =======
diff --git a/library/src/main/java/org/mustangproject/Invoice.java b/library/src/main/java/org/mustangproject/Invoice.java
index 5809c829..42490ed1 100644
--- a/library/src/main/java/org/mustangproject/Invoice.java
+++ b/library/src/main/java/org/mustangproject/Invoice.java
@@ -52,6 +52,7 @@ public class Invoice implements IExportableTransaction {
 	protected String contractReferencedDocument = null;
 	protected ArrayList<FileAttachment> xmlEmbeddedFiles=null;
 
+	protected BigDecimal totalPrepaidAmount = null;
 	protected Date detailedDeliveryDateStart = null;
 	protected Date detailedDeliveryPeriodEnd = null;
 
@@ -273,6 +274,22 @@ public class Invoice implements IExportableTransaction {
 		return buyerOrderReferencedDocumentIssueDateTime;
 	}
 
+
+	/***
+	 * allow to set a amount which has already been paid
+	 * @param prepaid null is possible to omit
+	 * @return fluent setter
+	 */
+	public Invoice setTotalPrepaidAmount(BigDecimal prepaid) {
+		totalPrepaidAmount=prepaid;
+		return this;
+	}
+
+	@Override
+	public BigDecimal getTotalPrepaidAmount() {
+		return totalPrepaidAmount;
+	}
+
 	/***
 	 * when the order (or whatever reference in BuyerOrderReferencedDocumentID) was issued (@todo switch to date?)
 	 * @param buyerOrderReferencedDocumentIssueDateTime  IssueDateTime in format CCYY-MM-DDTHH:MM:SS