#!/bin/sh
set -e

PKG=$(basename $0 | sed 's/\.config//')
BASE=`echo $PKG | sed "s/^\(.*\)-[0-9]*x[0-9]*/\1/"`

DEBCONF_DEBUG=developer

XWININFO=/usr/X11R6/bin/xwininfo

. /usr/share/debconf/confmodule
db_version 2.0

# Just look for any previously set value first, because we do not use
# a config file and debconf database is the only place the screen dimensions
# are stored.  This makes perfectly sense because changing a configuration
# file helps nothing because the source images will be deleted in the end
# of installation process
db_get ${BASE}/resolution
if [ _"$RET" != _"" ] ; then
   w=`echo $RET | sed "s/^\([0-9]\+\)x\([0-9]\+\)/\1/"`
   h=`echo $RET | sed "s/^\([0-9]\+\)x\([0-9]\+\)/\2/"`
   if [ "${w}x${h}" != $RET ] ; then
      # no valid resolution in debconf database
      # forget this value ...
      RET=""
   fi
fi

if [ _"$RET" = _"" ] ; then
   # get width and height of screen
   if [ -x $XWININFO ] ; then
      WIDTH=`$XWININFO -root | grep -w "Width:" | sed "s/^.*Width:[[:space:]]\+\([0-9]\+\)/\1/"`
      HEIGHT=`$XWININFO -root | grep -w "Height:" | sed "s/^.*Height:[[:space:]]\+\([0-9]\+\)/\1/"`
      RES="$WIDTH"x"$HEIGHT"
      if [ "$RES" != "x" ] ; then
         db_set ${BASE}/resolution "$RES"
      fi
   fi
fi

db_input medium ${BASE}/resolution  || true
db_go || true