#!/usr/bin/perl
use strict;
use GD::Graph::lines;

#Default Variablen
my $width=500;
my $height=300;
#my $graph_title='Entlade-Lade-Kurve Surfen und Mail';
#my $graph_title='Entlade-Lade-Kurve beim DVD-Schauen';
my $graph_title='Entlade-Lade-Kurve bei wechselnder Last';

my $x_label='rot = cpufreq in %; grün = batterylife; blau = batterytime; gelb = loadavg*100';
my $y_label='';

#my $image_name='lade-entladekurve-surfen-mail.png';
#my $image_name='lade-entladekurve-dvd-schauen.png';
my $image_name='lade-entladekurve-wechselnde-last.png';

#-----------------
my $zeit=0;
my $i = 0;
my @zeit;
my @batterylife;
my @batterytime;
my @cpufreq;
my @vmloadavg;
my @data;



while(<>){
chomp;

my @fields = split/ /;

my $batterylife = $fields[1];
my $batterytime = $fields[3];
my $cpufreq     = $fields[5];
my $vmloadavg   = $fields[8];

#printf "%.1f %i %i %i %.2f\n", $zeit, $batterylife, $batterytime, $cpufreq, $vmloadavg;

$zeit[$i]        = $zeit;
$batterylife[$i] = $batterylife;
$batterytime[$i] = $batterytime;
$cpufreq[$i]     = $cpufreq/15;
$vmloadavg[$i]   = $vmloadavg * 100;
$zeit+=0.5;
$i++;
}
@data = (\@zeit,  \@cpufreq, \@batterylife, \@batterytime, \@vmloadavg);

#my $x_tick_number=int($i%60);
#print "$x_tick_number";

my $graph = GD::Graph::lines->new($width, $height);
#$graph->set_legend("Dies","und","das","hallo");

$graph->set( 
      t_margin          => 10,
      r_margin          => 10, 
      x_label           => $x_label,
      y_label           => $y_label,
      title             => $graph_title,
#      x_tick_number     => 8,
      x_label_skip      => 60,
#      x_tick_offset     => 1,	     
#     y_max_value       => 8,
#      y_tick_number     => 15,
#      y_label_skip      => 1, 
      y_max_value       => 150,
      y_min_value       => 0,
 ) or die $graph->error;




my $gd = $graph->plot(\@data) or die $graph->error;
open(IMG, ">$image_name") or die $!;
print IMG $graph->plot(\@data)->png;