#!/bin/sh
### BEGIN INIT INFO
# Provides:          x-display-manager tdm-trinity
# Required-Start:    $local_fs $remote_fs
# Required-Stop:     $local_fs $remote_fs
# Should-Start:      console-screen
# Should-Stop:       console-screen
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: X display manager for Trinity
# Description:       TDM manages a collection of X servers, which may be on the local host or remote machines.
### END INIT INFO
# /etc/init.d/tdm-trinity: start or stop the X display manager
# Script originally stolen from the xdm package
#
# description: Trinity Display Manager
#
set -e

# To start tdm-trinity even if it is not the default display manager, change
# HEED_DEFAULT_DISPLAY_MANAGER to "false."
HEED_DEFAULT_DISPLAY_MANAGER=true
DEFAULT_DISPLAY_MANAGER_FILE=/etc/X11/default-display-manager

TDEDIRS=/opt/trinity/
PATH=/opt/trinity/bin:/bin:/usr/bin:/sbin:/usr/sbin
DAEMON=/opt/trinity/bin/tdm
PIDFILE=/var/run/tdm.pid
UPGRADEFILE=/var/run/tdm.upgrade

# parameters to support tdm customization
TDMRC=/etc/trinity/tdm/tdmrc
BACKGROUNDRC=/etc/trinity/tdm/backgroundrc

#if configuration is changed by tdmtheme or other tools, don't do magick
if grep -q "Theme=@@@ToBeReplacedByDesktopBase@@@" ${TDMRC} && grep -q "Wallpaper=default_blue.jpg" ${BACKGROUNDRC}
then



TDMOVERRIDEDIR=/etc/default/tdm-trinity.d
TDMCFGDIR=/var/run/tdm-trinity
TDMCFG=$TDMCFGDIR/tdmrc
BACKGROUNDCFG=$TDMCFGDIR/backgroundrc

test -x $DAEMON || exit 0

# uncomment, if you want auto-logon to be runlevel-dependant
#test "$runlevel" || { runlevel=`runlevel`; runlevel=${runlevel#* }; }
#test "$runlevel" = 4 && ARG=-autolog || ARG=-noautolog

# uncomment, if you want tons of debug info in your syslog
#ARG="$ARG -debug 255"

# we use an alternative tdm master configuration file
ARG="$ARG -config $TDMCFG"

# we source overrides. run-parts sorts the list in a predictable order
if [ -d "$TDMOVERRIDEDIR" ]; then
    for part in $(run-parts --list "$TDMOVERRIDEDIR" 2>/dev/null || true); do
        . "$part"
    done
fi

# we generate tdm configuration files
gentdmconf --in $TDMCFGDIR 1> /dev/null

# we update tdm configuration files (only overridden values)
[ -n "$USEBACKGROUND" ] && sed -i "s|^#\?UseBackground=.*|UseBackground=$USEBACKGROUND|" $TDMCFG
[ -n "$BACKGROUNDCFG" ] && sed -i "s|^#\?BackgroundCfg=.*|BackgroundCfg=$BACKGROUNDCFG|" $TDMCFG
[ -n "$USETHEME" ] && sed -i "s|^#\?UseTheme=.*|UseTheme=$USETHEME|" $TDMCFG
[ -n "$THEME" ] && sed -i "s|^#\?Theme=.*|Theme=$THEME|" $TDMCFG
[ -n "$COMPOSITOR" ] && sed -i "s|^#\?Compositor=.*|Compositor=$COMPOSITOR|" $TDMCFG
[ -n "$WALLPAPER" ] && sed -i "s|^#\?Wallpaper=.*|Wallpaper=`readlink -f $WALLPAPER`|" $BACKGROUNDCFG


fi
# autologin overrides are useful for live debian environment
if [ -n "$AUTOLOGINUSER" ]; then
	sed -i "s|^#\?AutoLoginEnable=.*|AutoLoginEnable=true|" $TDMCFG
	sed -i "s|^#\?AutoLoginUser=.*|AutoLoginUser=$AUTOLOGINUSER|" $TDMCFG
fi
[ -n "$AUTOLOGINDELAY" ] && sed -i "s|^#\?AutoLoginDelay=.*|AutoLoginDelay=$AUTOLOGINDELAY|" $TDMCFG
[ -n "$AUTOLOGINAGAIN" ] && sed -i "s|^#\?AutoLoginAgain=.*|AutoLoginAgain=$AUTOLOGINAGAIN|" $TDMCFG
[ -n "$AUTOLOGINLOCKED" ] && sed -i "s|^#\?AutoLoginLocked=.*|AutoLoginLocked=$AUTOLOGINLOCKED|" $TDMCFG

# If we upgraded the daemon, we can't use the --exec argument to
# start-stop-daemon since the inode will have changed.  The risk here is that
# in a situation where the daemon died, its pidfile was not cleaned up, and
# some other process is now running under that pid, start-stop-daemon will send
# signals to an innocent process.  However, this seems like a corner case.
# C'est la vie!
if [ -e $UPGRADEFILE ]; then
  SSD_ARGS="--pidfile $PIDFILE --startas $DAEMON"
else
  SSD_ARGS="--pidfile $PIDFILE --exec $DAEMON"
fi

stillrunning () {
  if expr "$(cat /proc/$DAEMONPID/cmdline 2> /dev/null)" : "$DAEMON" > /dev/null 2>&1; then
    true
  else
    # if the daemon does not remove its own pidfile, we will
    rm -f $PIDFILE $UPGRADEFILE
    false
  fi;
}

case "$1" in
  start)
    if [ -e $DEFAULT_DISPLAY_MANAGER_FILE ] &&
       [ "$HEED_DEFAULT_DISPLAY_MANAGER" = "true" ] &&
       [ "$(cat $DEFAULT_DISPLAY_MANAGER_FILE)" != "$DAEMON" ]; then
      echo "Not starting Trinity Display Manager (tdm-trinity); it is not the default display manager."
    else
      echo -n "Starting Trinity Display Manager: tdm-trinity"
      start-stop-daemon --start --quiet $SSD_ARGS -- $ARG || echo -n " already running"
      echo "."
    fi
  ;;

  restart)
    /etc/init.d/tdm-trinity stop
    if [ -f $PIDFILE ]; then
      if stillrunning; then
        exit 1
      fi
    fi
    /etc/init.d/tdm-trinity start
  ;;

  reload)
    echo -n "Reloading Trinity Display Manager configuration..."
    if start-stop-daemon --stop --signal 1 --quiet $SSD_ARGS; then
      echo "done."
    else
      echo "tdm-trinity not running."
    fi
  ;;

  force-reload)
    /etc/init.d/tdm-trinity reload
  ;;

  stop)
    echo -n "Stopping Trinity Display Manager: tdm-trinity"
    if [ ! -f $PIDFILE ]; then
      echo " not running ($PIDFILE not found)."
      exit 0
    else
      DAEMONPID=$(cat $PIDFILE | tr -d '[:blank:]')
      KILLCOUNT=1
      if [ ! -e $UPGRADEFILE ]; then
        if start-stop-daemon --stop --quiet $SSD_ARGS; then
          # give tdm's signal handler a second to catch its breath
          sleep 1
        else
          echo -n " not running"
        fi
      fi
      while [ $KILLCOUNT -le 5 ]; do
        if stillrunning; then
          kill $DAEMONPID
        else
          break
        fi
        sleep 1
        KILLCOUNT=$(( $KILLCOUNT + 1 ))
      done
      if stillrunning; then
        echo -n " not responding to TERM signal (pid $DAEMONPID)"
      else
        rm -f $UPGRADEFILE
      fi
    fi
    echo "."

    # Launches usplash on shutdown
    if ( `grep -q '\( \|^\)splash\( \|$\)' /proc/cmdline` && `which usplash_down >/dev/null` ) ; then
      usplash_down
    fi
  ;;

  *)
    echo "Usage: /etc/init.d/tdm-trinity {start|stop|restart|reload|force-reload}"
    exit 1
    ;;
esac

exit 0
