#!/usr/bin/perl -w
#
# DigiTemp webpage include script
# Copyright 1997-2001 by Brian C. Lane <bcl@brianlane.com> www.brianlane.com
# All Rights Reserved
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the Free
# Software Foundation; either version 2 of the License, or (at your option)
# any later version.
#
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
# more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA
#

#
# Read the temperature logfile, write an include file for the webpage.
#
# Sensor #0 is the Window
# Sensor #1 is the inside of the Linux box
#
# Dec 18 21:46:47  Sensor 0 C: 8.81 F: 47.86
# Dec 18 21:46:47  Sensor 1 C: 26.41 F: 79.54
#

# Directory and filename of the webpage include file to create
$ftp_src_dir  = "/tmp/";
$ftp_src_file = "nexus_temp.inc";

# Open the file for output
open( INCFILE, ">$ftp_src_dir$ftp_src_file") || die "Can't open $ftp_src_dir$ftp_src_file";

# Write the temperatures to the file
print INCFILE "<HR>\n";
print INCFILE "<CENTER>\n";
print INCFILE "The current temperatures are:<P>\n";

# Run tail -2 /var/log/temperature and parse the output
# The -2 depends on the number of sensors that you have.
open( TEMPLOG, "tail -2 /var/log/temperature |") || die "Can't fork: $!";

while( <TEMPLOG> )
{
  # Get the time and date, sensor number, temperature in c and f
  ($month,$day,$time,$d1,$sensor,$d1,$centigrade,$d1,$fahrenheight) = split( " ", $_ );

  # Print sensor specific messages
  # The \xB0 is supposed to be a degree symbol. It seems to work for some
  # systems but not for others
  if( $sensor eq '0' )
  {
    print INCFILE "The modems are $fahrenheight\xB0 F ($centigrade\xB0 C)<BR>\n";
  }

  if( $sensor eq '1' )
  {
    print INCFILE "The room is a ";

    if( $fahrenheight < 40.0 )
    {
      print INCFILE "Freezing";
    }

    if( $fahrenheight >= 40.0 and $fahrenheight < 70.0 )
    {
      print INCFILE "Chilly";
    }

    if( $fahrenheight >= 70.0 and $fahrenheight < 80.0 )
    {
      print INCFILE "Comfortable";
    }

    if( $fahrenheight >= 80.0 and $fahrenheight < 100.0 )
    {
      print INCFILE "Balmy";
    }

    if( $fahrenheight >= 100.0 )
    {
      print INCFILE "Blistering";
    }


    print INCFILE " $fahrenheight\xB0 F ($centigrade\xB0 C)<BR>\n";
  }
}

print INCFILE "Last updated: $month $day $time<BR>\n";

print INCFILE "</CENTER>\n";

close( TEMPLOG );
close( INCFILE );

# done!