#!/usr/bin/perl -w

# generate an image that contains the last few month's consumption data.
# The main work is done in the gnuplot file, this is just a wrapper that
# allows to set a few file names and parameters.

# Base directories; get modified by configure script
# $progroot="/home/chris/construction/BTUmetering";
$progroot="MAINPROGROOT";
# $htdocsroot="/srv/www/htdocs";
$htdocsroot="HTDOCROOT";

$sumdir="$progroot/log";
$htimgroot="$htdocsroot/img2";
$gnudir="$progroot/gnuplot";

$sourcefile="$sumdir/summaryfile";
$targetfile="$htimgroot/overview.png";

# open gnuplot and send it a few parameters

$parset = "outfilename=\"$targetfile\"; src=\"$sourcefile\"\n";
# generate image
    open GNUPLOT, "| gnuplot - $gnudir/consumption.gnu >/dev/null";
    print GNUPLOT $parset;
    close GNUPLOT;