#!/bin/sh
#

# usage: restart

#-- options

# You will almost definitely want to change this. In general, it
#  should be the directory this script is in. Provide a full pathname.
#  This is usually something like /home/lwl/pennmush/game
GAMEDIR=/tmp/pennmush/game

# The config file
CONF_FILE=mush.cnf

# The error log file
LOG=log/netmush.log

#
# Read the cnf file and set some variables.
#
cd $GAMEDIR
INDB=`egrep "^input_database" $CONF_FILE | sed "s/.*[ 	][ 	]*.*\/\(.*\)/\1/"`
OUTDB=`egrep "^output_database" $CONF_FILE | sed "s/.*[ 	][ 	]*.*\/\(.*\)/\1/"`
PANICDB=`egrep "^crash_database" $CONF_FILE | sed "s/.*[ 	][ 	]*.*\/\(.*\)/\1/"`
PANICDIR=`egrep "^crash_database" $CONF_FILE | sed "s/.*[ 	][ 	]*\(.*\)\/.*/\1/"`
COMPRESSOR="cat"
SUFFIX=""

# Find out what the compression program is, if any
egrep -s "^compress_program[ 	]*[A-Za-z0-9]" $CONF_FILE
nocompress=$?
if [ $nocompress -eq 0 ]; then
    COMPRESSOR=`egrep "^compress_program" $CONF_FILE | sed "s/[^ 	]*[ 	]*\(.*\)/\1/"`
    SUFFIX=`egrep "^compress_suffix" $CONF_FILE | sed "s/[^ 	]*[ 	]*\(.*\)/\1/"`
fi
  

#-- start up everything

# Prevent double-starting things. You may need to provide a pathname for
#  some of the commands. System V flavors need "ps -f" instead of "ps uwx".
mush=`ps uwx`
mush=`echo $mush | egrep $CONF_FILE | wc -l`

# Uncomment the following only if you are RUNNING an RWHO server and want to 
#  restart it as well
#mwhod=`ps uwx`
#mwhod=`echo $mwhod | egrep mwhod | wc -l`

cd $GAMEDIR

# Uncomment the following only to restart the RWHO server
#if [ $mwhod -eq 1]; then
#  echo restarting mud who daemon
#  ./mwhod -f muds.dat -n FooWHO >mwhod.log 2>&1 &
#fi

if [ $mush -gt 0 ]; then
  echo Mush already active.
  exit 0
fi

echo Building text file indexes.
(cd txt; make)

echo Restarting Mush.

if [ -r $PANICDIR/$PANICDB ]; then
   end="`tail -1 $PANICDIR/$PANICDB`"
   if [ "$end" = "***END OF DUMP***" ]; then
      echo "Recovering PANIC dump."
      cat $PANICDIR/$PANICDB | $COMPRESSOR > data/$OUTDB$SUFFIX
      rm $PANICDIR/$PANICDB
      echo "PANIC dump successfully recovered."
   else
      mv $PANICDIR/$PANICDB save/$PANICDB.corrupt
      echo "Warning: PANIC dump corrupt. Using older db."
   fi
fi

rm -f log/*.log

if [ -r data/$OUTDB$SUFFIX ]; then
   rm -f save/$INDB$SUFFIX.old
   mv -f data/$INDB$SUFFIX save/$INDB$SUFFIX.old
   mv data/$OUTDB$SUFFIX data/$INDB$SUFFIX
else
   echo "No $OUTDB$SUFFIX found."
   if [ -r data/$INDB$SUFFIX ]; then
      echo "Using $INDB$SUFFIX."
   else
      echo "No $INDB$SUFFIX found."
      if [ -r save/$INDB$SUFFIX.old ]; then
	 echo "Using save/$INDB$SUFFIX.old."
	 cp save/$INDB$SUFFIX.old data/$INDB$SUFFIX
      else
	echo "No save/$INDB$SUFFIX.old found."
	if [ -r data/minimal.db ]; then
	   echo "Using data/minimal.db."
	   cat data/minimal.db | $COMPRESSOR > data/$INDB$SUFFIX
	else
	 if [ -r data/minimal.db.Z ]; then
	    echo "Using data/minimal.db.Z."
	    zcat data/minimal.db.Z | $COMPRESSOR > data/$INDB$SUFFIX
	 else
	    echo "No minimal.db.Z found."
	    if [ -r data/minimal.db.gz ]; then
	      echo "Using data/minimal.db.gz."
	      gzip -d -c data/minimal.db.gz | $COMPRESSOR > data/$INDB$SUFFIX
	    else
	      echo "No minimal.db.gz found."
	      echo "I can't find any usable database."
	    fi
	 fi
	fi
      fi
   fi
fi

if [ -r reboot.db ]; then
  rm -f reboot.db
fi
./netmush $CONF_FILE $LOG &