From fd198fcdfda36da547af84d57ab456faf16a0dd0 Mon Sep 17 00:00:00 2001
From: Benjamin Oechslein <benjamin.oechslein@informatik.uni-erlangen.de>
Date: Fri, 9 Jan 2015 20:22:15 +0100
Subject: [PATCH 1/1] Generate day-max/min graph definitions

---
 upsgraph.pl | 39 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)

diff --git a/upsgraph.pl b/upsgraph.pl
index 1e335ac..c8bc4c6 100755
--- a/upsgraph.pl
+++ b/upsgraph.pl
@@ -184,6 +184,45 @@ sub fetch_tcp_multi(@) {
 	%values;
 }
 
+sub dayGraphFunc {
+	my $dataSrc = shift;
+	my $mode = shift;
+	my $color = shift;
+	my $label = shift;
+	my $dataPoints = shift;
+	my @args = ();
+	push @args, "CDEF:prev${mode}1=PREV(${dataSrc})";
+	for (my $i = 1; $i < $dataPoints - 1; ++$i) {
+		my $prev = $i;
+		my $next = $i+1;
+		push @args, "CDEF:prev${mode}${next}=PREV(prev${mode}${prev})";
+	}
+	my $dayCons = '';
+	my $consFunc = '';
+	for (my $i = 1; $i < $dataPoints; ++$i) {
+		$dayCons .= "prev${mode}${i},";
+		$consFunc .= ",${mode}";
+	}
+	push @args, "CDEF:day${mode}=${dayCons}${dataSrc}${consFunc}";
+	push @args, "CDEF:fillCalDay${mode}0=COUNT,${dataPoints},%,0,EQ,day${mode},UNKN,IF";
+	for (my $i = 1; $i < $dataPoints; ++$i) {
+		my $prev = $i-1;
+		my $next = $i;
+		push @args, "CDEF:fillCalDay${mode}${next}=PREV(fillCalDay${mode}${prev})";
+	}
+	my $fillPoint = '';
+	my $if = '';
+	for (my $i = 0; $i < $dataPoints; ++$i) {
+		$fillPoint .= "COUNT,${dataPoints},%,${i},EQ,fillCalDay${mode}${i},";
+		$if .= ",IF";
+	}
+	push @args, "CDEF:${mode}Curve=${fillPoint}UNKN${if}";
+	my $forwardShift = (24*60*60) * ($dataPoints - 1) / $dataPoints;
+	push @args, "SHIFT:${mode}Curve:-${forwardShift}";
+	push @args, "LINE1:${mode}Curve#${color}:${label}";
+	return \@args;
+}
+
 if ($> == 0) {
 	if (@ARGV != 2) {
 		print STDERR "Running as root, please provide UID as 2th argument!\n";
-- 
2.39.5