#!/usr/bin/env bash

# Copyright 2008, 2009, 2010, 2011, 2012 Roland Olbricht
#
# This file is part of PT_Diagrams.
#
# PT_Diagrams is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# PT_Diagrams 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 Affero General Public License
# along with PT_Diagrams.  If not, see <http://www.gnu.org/licenses/>.

BUF="$QUERY_STRING&"

ID=
LAT=50.7421
LON=7.0624
ZOOM=6

IFS=$'&'
for KEY_VAL in $QUERY_STRING; do
{
  if [[ ${KEY_VAL:0:3} == "id=" ]]; then
    ID="${KEY_VAL:3}"
  elif [[ ${KEY_VAL:0:4} == "lat=" ]]; then
    LAT="${KEY_VAL:4}"
  elif [[ ${KEY_VAL:0:4} == "lon=" ]]; then
    LON="${KEY_VAL:4}"
  elif [[ ${KEY_VAL:0:5} == "zoom=" ]]; then
    ZOOM="${KEY_VAL:5}"
  fi
}; done
unset IFS

echo "Content-Type: text/html; charset=utf-8"
echo

cat </var/www/augmented_diffs.html | awk "{ i=index(\$0,\"\$ID\"); if (i==0) { i=index(\$0,\"\$LAT\"); if (i==0) { i=index(\$0,\"\$LON\"); if (i==0) { i=index(\$0,\"\$ZOOM\"); if (i==0) { print \$0; } else { print substr(\$0,1,i-1) \"$ZOOM\" substr(\$0,i+5); } } else { print substr(\$0,1,i-1) \"$LON\" substr(\$0,i+4); } } else { print substr(\$0,1,i-1) \"$LAT\" substr(\$0,i+4); } } else { print substr(\$0,1,i-1) \"$ID\" substr(\$0,i+3); }; }"