#!/bin/bash

set -e

ROHOMEPATH=/nwn/home
HOMEPATH=/nwn/run

# Let's make a shadow-copy of home and link us in
for p in database hak modules override portraits saves servervault tlk development; do
  if [ ! -d $ROHOMEPATH/$p ]; then mkdir -p -v $ROHOMEPATH/$p; fi
  if [ ! -e $HOMEPATH/$p ]; then ln -vs $ROHOMEPATH/$p $HOMEPATH/; fi
done
for p in dialog.tlk dialogf.tlk; do
  if [ ! -L $HOMEPATH/$p ]; then ln -vs $ROHOMEPATH/$p $HOMEPATH/; fi
done

if [ -e $ROHOMEPATH/settings.tml ] && [ ! -e $HOMEPATH/settings.tml ]; then
  ln -vs $ROHOMEPATH/settings.tml $HOMEPATH/;
fi

# Setup read-only copies of nwn and nwnplayer.ini
if [ -f $ROHOMEPATH/nwn.ini ]; then
  <$ROHOMEPATH/nwn.ini awk -f /nwn/prep-nwn-ini.awk >$HOMEPATH/nwn.ini
fi

if [ -f $ROHOMEPATH/nwnplayer.ini ]; then
  <$ROHOMEPATH/nwnplayer.ini awk -f /nwn/prep-nwnplayer-ini.awk >$HOMEPATH/nwnplayer.ini
fi

if [ -f $ROHOMEPATH/cryptographic_secret ]; then
  cp -a $ROHOMEPATH/cryptographic_secret $HOMEPATH/
fi

function backup_runtime_configuration {
  # If we generated a cryptographic_secret, put it back into the public dir
  if [ -f $HOMEPATH/cryptographic_secret ] && [ ! -f $ROHOMEPATH/cryptographic_secret ]; then
    cp -va $HOMEPATH/cryptographic_secret $ROHOMEPATH/cryptographic_secret
  fi

  # If we generated a settings.tml, put it back into the public dir
  if [ -f $HOMEPATH/settings.tml ] && [ ! -f $ROHOMEPATH/settings.tml ]; then
    cp -va $HOMEPATH/settings.tml $ROHOMEPATH/settings.tml
  fi
}
(sleep 10; backup_runtime_configuration) &

args=()
if [[ "${NWN_MODULEURL}" != "" ]]; then
  args+=("-moduleurl" "${NWN_MODULEURL}")
else
  args+=("-module" "${NWN_MODULE:-DockerDemo}")
fi
if [[ "${NWN_NWSYNCURL}" != "" ]]; then
  args+=("-nwsyncurl" "${NWN_NWSYNCURL}")
fi
if [[ "${NWN_NWSYNCHASH}" != "" ]]; then
  args+=("-nwsynchash" "${NWN_NWSYNCHASH}")
fi
if [[ "${NWN_MODULEHASH}" != "" ]]; then
  args+=("-modulehash" "${NWN_MODULEHASH}")
fi

copycrashlog() {
  inotifywait -mq -e moved_to -e create "$HOMEPATH" --format "%f" | while read f
  do
    # check if the file is a crash log file
    if [[ $f = nwserver-crash*.log ]]; then
      cp -a $HOMEPATH/$f $ROHOMEPATH/
    fi
  done
}

copycrashlog &

copyruntimeconfiguration() {
  inotifywait -mq -e close_write "$HOMEPATH" --format "%f" | while read f
  do
    if [[ $f = cryptographic_secret ]] || [[ $f = settings.tml ]]; then
      backup_runtime_configuration
    fi
  done
}

copyruntimeconfiguration &

set +e
exec env LD_PRELOAD="/nwn/rs/runtime.so" ./nwserver-linux \
  $NWN_EXTRA_ARGS \
  -port ${NWN_PORT:-5121} \
  -interactive \
  -servername "${NWN_SERVERNAME:-I was too lazy to configure my server.}" \
  -publicserver "${NWN_PUBLICSERVER:-0}" \
  -maxclients "${NWN_MAXCLIENTS:-96}" \
  -minlevel "${NWN_MINLEVEL:-1}" \
  -maxlevel "${NWN_MAXLEVEL:-40}" \
  -pauseandplay "${NWN_PAUSEANDPLAY:-1}" \
  -pvp "${NWN_PVP:-2}" \
  -servervault "${NWN_SERVERVAULT:-1}" \
  -elc "${NWN_ELC:-1}" \
  -ilr "${NWN_ILR:-1}" \
  -gametype "${NWN_GAMETYPE:-0}" \
  -oneparty "${NWN_ONEPARTY:-0}" \
  -difficulty "${NWN_DIFFICULTY:-3}" \
  -autosaveinterval "${NWN_AUTOSAVEINTERVAL:-0}" \
  -playerpassword "${NWN_PLAYERPASSWORD}" \
  -dmpassword "${NWN_DMPASSWORD}" \
  -adminpassword "${NWN_ADMINPASSWORD}" \
  -reloadwhenempty "${NWN_RELOADWHENEMPTY:-0}" \
  "${args[@]}"
RET=$?
set -e

backup_runtime_configuration

# If this thing crashed, copy the log to the public home so the user
# can deliberate over it.
if ls $HOMEPATH/nwserver-crash* 1> /dev/null 2>&1; then
  echo "The server crashed with return code "$RET". Trying to save crash data into your mounted server home."
  cp -va $HOMEPATH/nwserver-crash*.log $ROHOMEPATH/ || true
fi
exit $RET