#!/bin/bash

### BEGIN INIT INFO
# Provides:          airtime-playout
# Required-Start:    $local_fs $remote_fs $network $syslog
# Required-Stop:     $local_fs $remote_fs $network $syslog
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Manage airtime-playout daemon
### END INIT INFO

USERID=pypo
ROOTUSERID=root
GROUPID=pypo
NAME=Airtime\ Playout

DAEMON0=/usr/lib/airtime/pypo/bin/airtime-playout
PIDFILE0=/var/run/airtime-playout.pid

DAEMON1=/usr/lib/airtime/pypo/bin/airtime-liquidsoap
PIDFILE1=/var/run/airtime-liquidsoap.pid

liquidsoap_start () {
        start-stop-daemon --start --background --quiet --chuid $USERID:$GROUPID \
        --nicelevel -15 --make-pidfile --pidfile $PIDFILE1 --startas $DAEMON1
        
        monit monitor airtime-liquidsoap >/dev/null 2>&1
}

liquidsoap_stop () {
        monit unmonitor airtime-liquidsoap >/dev/null 2>&1
        /usr/lib/airtime/airtime_virtualenv/bin/python /usr/lib/airtime/pypo/bin/liquidsoap_scripts/liquidsoap_prepare_terminate.py
        
        # Send TERM after 5 seconds, wait at most 30 seconds.
        start-stop-daemon --stop --oknodo --retry TERM/5/0/30 --quiet --pidfile $PIDFILE1
        rm -f $PIDFILE1
}

stop_pypo () {
        monit unmonitor airtime-playout >/dev/null 2>&1
        
        # Send TERM after 5 seconds, wait at most 30 seconds.
        start-stop-daemon --stop --oknodo --retry TERM/5/0/30 --quiet --pidfile $PIDFILE0
        rm -f $PIDFILE0
}

start () {
        chown pypo:pypo /etc/airtime
        chown pypo:pypo /etc/airtime/liquidsoap.cfg
    
        start-stop-daemon --start --background --quiet --chuid $ROOTUSERID:$ROOTUSERID --make-pidfile --pidfile $PIDFILE0 --startas $DAEMON0
        monit monitor airtime-playout >/dev/null 2>&1
        
        liquidsoap_start
}

stop () {
        # Send TERM after 5 seconds, wait at most 30 seconds.
        
        monit unmonitor airtime-playout >/dev/null 2>&1
        start-stop-daemon --stop --oknodo --retry TERM/5/0/30 --quiet --pidfile $PIDFILE0
        rm -f $PIDFILE0
        
        liquidsoap_stop
}

monit_restart() {
        
        start-stop-daemon --stop --oknodo --retry TERM/5/0/30 --quiet --pidfile $PIDFILE0
        rm -f $PIDFILE0
        
        /usr/lib/airtime/airtime_virtualenv/bin/python /usr/lib/airtime/pypo/bin/liquidsoap_scripts/liquidsoap_prepare_terminate.py
        start-stop-daemon --stop --oknodo --retry TERM/5/0/30 --quiet --pidfile $PIDFILE1
        rm -f $PIDFILE1
        
        start-stop-daemon --start --background --quiet --chuid $ROOTUSERID:$ROOTUSERID --make-pidfile --pidfile $PIDFILE0 --startas $DAEMON0
        
        start-stop-daemon --start --background --quiet --chuid $USERID:$GROUPID \
        --nicelevel -15 --make-pidfile --pidfile $PIDFILE1 --startas $DAEMON1
        
}

start_no_monit() {
        start-stop-daemon --start --background --quiet --chuid $ROOTUSERID:$ROOTUSERID --make-pidfile --pidfile $PIDFILE0 --startas $DAEMON0        
        liquidsoap_start
}

case "${1:-''}" in
  'start')
            # start commands here
            echo -n "Starting $NAME: "
            start
            echo "Done."
        ;;
  'stop')
            # stop commands here
            echo -n "Stopping $NAME: "
            stop
            echo "Done."
        ;;
  'restart')
           # restart commands here
           echo -n "Restarting $NAME: "
           stop
           start
           echo "Done."
        ;;
  'start-no-monit')
           # restart commands here
           echo -n "Starting $NAME: "
           start_no_monit
           echo "Done."
        ;;
  'monit-restart')
           # restart commands here
           echo -n "Monit Restarting $NAME: "
           monit_restart
           echo "Done."
        ;;
  'status')
           # status commands here
           /usr/bin/airtime-check-system
        ;;
  'stop-liquidsoap')
           echo -n "Stopping Liquidsoap: "
           liquidsoap_stop
           echo "Done."
        ;;
  'start-liquidsoap')
           echo -n "Starting Liquidsoap: "
           liquidsoap_start
           echo "Done."
        ;;
  'restart-liquidsoap')
           # restart commands here
           echo -n "Restarting Liquidsoap: "
           liquidsoap_stop
           liquidsoap_start
           echo "Done."
        ;;
  'pypo-stop')
           # restart commands here
           echo -n "Restarting Pypo: "
           stop_pypo
           echo "Done."
        ;;
  *)      # no parameter specified
        echo "Usage: $SELF start|stop|restart|status"
        exit 1
        ;;
esac