From: Bastian Dehn <hhaalo@arcor.de>
Date: Sun, 23 Jun 2024 08:03:27 +0000 (+0200)
Subject: add read saldo
X-Git-Tag: 1.2.0^2~16^2~15
X-Git-Url: https://gitweb.hhaalo.de/?a=commitdiff_plain;h=0d9829c03e1b1ee0bc12a95121eca637a32ab5c2;p=feierabend.git

add read saldo
---

diff --git a/src/feierabendxml.c b/src/feierabendxml.c
index caa9c4c..bb1fc51 100644
--- a/src/feierabendxml.c
+++ b/src/feierabendxml.c
@@ -2,6 +2,8 @@
 #include <string.h>
 #include <libxml/encoding.h>
 #include <libxml/xmlwriter.h>
+#include <libxml/parser.h>
+#include <libxml/xpath.h>
 #include "worktime.h"
 #include "break.h"
 #include "time_format.h"
@@ -44,7 +46,7 @@ void initTimeAcount()
 	free(xmlElemContent);
 	xmlElemContent = NULL;
 
-	xmlTextWriterStartDocument(xmlWriter, "1.0", "UTF-8", "true");
+	xmlTextWriterStartDocument(xmlWriter, "1.0", "UTF-8", NULL);
 
 	xmlElemName = xmlCharStrdup("zeitkonto");
 	xmlTextWriterStartElement(xmlWriter, xmlElemName);
@@ -216,7 +218,7 @@ void createEntry(int begin_hour, int begin_min, int end_hour, int end_min)
 	free(xmlElemContent);
 	xmlElemContent = NULL;
 
-	xmlTextWriterStartDocument(xmlWriter, "1.0", "UTF-8", "true");
+	xmlTextWriterStartDocument(xmlWriter, "1.0", "UTF-8", NULL);
 
 	xmlElemName = xmlCharStrdup("zeitkonto");
 	xmlTextWriterStartElement(xmlWriter, xmlElemName);
@@ -244,10 +246,59 @@ void createEntry(int begin_hour, int begin_min, int end_hour, int end_min)
 	xmlWriter = NULL;
 }
 
+void readLastSaldo(const char* file_path)
+{
+	xmlInitParser();
+	xmlDocPtr xmldoc = xmlReadFile(file_path, "UTF-8", 0);
+
+	if (xmldoc == NULL) {
+		printf("ERROR: could not open file: %s\n", file_path);
+		exit(EXIT_FAILURE);
+	}
+
+	xmlXPathContextPtr xmlcontext = xmlXPathNewContext(xmldoc);
+	xmlChar* expr = xmlCharStrdup("/zeitkonto/eintrag[last()]/@saldo");
+	xmlXPathObjectPtr xmlnode = xmlXPathEvalExpression(expr, xmlcontext);
+
+	if (xmlnode->nodesetval == NULL || xmlnode->nodesetval->nodeTab == NULL) {
+		free(expr);
+		expr = NULL;
+		xmlXPathFreeObject(xmlnode);
+		xmlnode = NULL;
+		expr = xmlCharStrdup("/zeitkonto/@anfangssaldo");
+		xmlnode = xmlXPathEvalExpression(expr, xmlcontext);
+	}
+
+	if (xmlnode->nodesetval->nodeTab == NULL) {
+		printf("ERROR: could not find an saldo\n");
+		xmlCleanupParser();
+		free(expr);
+		expr = NULL;
+		xmlXPathFreeObject(xmlnode);
+		xmlnode = NULL;
+		xmlXPathFreeContext(xmlcontext);
+		xmlcontext = NULL;
+		xmlFreeDoc(xmldoc);
+		xmldoc = NULL;
+		exit(EXIT_FAILURE);
+	}
+
+	xmlCleanupParser();
+
+	free(expr);
+	expr = NULL;
+	xmlXPathFreeObject(xmlnode);
+	xmlnode = NULL;
+	xmlXPathFreeContext(xmlcontext);
+	xmlcontext = NULL;
+	xmlFreeDoc(xmldoc);
+	xmldoc = NULL;
+}
+
 int main(int argc, char* argv[])
 {
 	if (argc < 2) {
-		printf("ERROR: %s <init|entry>\n", argv[0]);
+		printf("ERROR: %s <init|add|entry>\n", argv[0]);
 		return 1;
 	}
 
@@ -265,6 +316,15 @@ int main(int argc, char* argv[])
 		return 0;
 	}
 
+	if (strcmp(argv[1], "add") == 0) {
+		if (argc < 7) {
+			printf("ERROR: %s add <begin_hours> <begin_minutes> <end_hours> <end_minutes> <inputfile>\n", argv[0]);
+			return 1;
+		}
+		readLastSaldo(argv[6]);
+		return 0;
+	}
+
 	printf("ERROR: unknown command\n");
 	return 0;
 }
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