#!/bin/sh
#
# DON'T EDIT THIS FILE DIRECTLY!
#
# Instead, create your own configuration by setting any of the 7 variables
# listed below in /etc/default/couchpotato. For example: adding CP_USER=noob
# to /etc/default/couchpotato makes the service run under the 'noob' account,
# overruling the default value of 'couchpotato'.
#
# Accepted variables with default values -if any- in parentheses:
# CP_USER	# username to run couchpotato under (couchpotato)
# CP_HOME	# directory of CouchPotato.py (/opt/couchpotato)
# CP_DATA	# directory of couchpotato's db, cache and logs (/var/opt/couchpotato)
# CP_PIDFILE	# full path of couchpotato.pid (/var/run/couchpotato/couchpotato.pid)
# PYTHON_BIN	# full path of the python binary (/usr/bin/python)
# CP_OPTS	# extra cli options for couchpotato, see 'CouchPotato.py --help'
# SSD_OPTS	# extra options for start-stop-daemon, see 'man start-stop-daemon'

### BEGIN INIT INFO
# Provides:          couchpotato
# Required-Start:    $network $remote_fs
# Required-Stop:     $network $remote_fs
# Should-Start:      $named deluged network-manager nzbget qbittorrent-nox sabnzbdplus transmission-daemon
# Should-Stop:       $named deluged network-manager nzbget qbittorrent-nox sabnzbdplus transmission-daemon
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: CouchPotato PVR for Usenet and torrents
# Description:       starts instance of CouchPotato using start-stop-daemon
### END INIT INFO

DESC=CouchPotato
CONFIG=/etc/default/couchpotato

# don't accept config vars from the shell environment
unset CP_USER CP_HOME CP_DATA CP_PIDFILE PYTHON_BIN CP_OPTS SSD_OPTS

# source lsb init functions
. /lib/lsb/init-functions

# try loading the configuration file
[ -r "$CONFIG" ] && . "$CONFIG" \
	|| log_action_msg "$DESC: $CONFIG unreadable, falling back to default settings"

# assorted settings and their defaults
: "${CP_USER:=couchpotato}"
: "${CP_HOME:=/opt/couchpotato}"
: "${CP_DATA:=/var/opt/couchpotato}"
: "${CP_PIDFILE:=/var/run/couchpotato/couchpotato.pid}"
: "${PYTHON_BIN:=/usr/bin/python}"

# basic sanity checks
([ -x "$PYTHON_BIN" ] && [ -f "$CP_HOME/CouchPotato.py" ]) || {
	log_failure_msg "$DESC: init script setup failed basic sanity checks, aborting!";
	# exit zero since this condition may also occur after a user
	# uninstalled cp while leaving this script in place.
	exit 0;
}

start_cp() {
	# create directories with sensible ownership and permissions
	# (but refuse to touch any pre-existing ones)
	for D in "$(dirname "$CP_PIDFILE")" "$CP_DATA"; do
		[ ! -d "$D" ] && {
			install --directory --owner="$CP_USER" --group=root --mode=0750 "$D" || exit 1;
		}
	done

#	# for backwards compatibility create an empty pidfile so it
#	# can be in any pre-existing directory, even those unwritable
#	# for the $CP_USER. PEBCAK?
#	[ ! -e "$CP_PIDFILE" ] && {
#		touch "$CP_PIDFILE" && \
#		chmod 0600 "$CP_PIDFILE" && \
#		chown "$CP_USER" "$CP_PIDFILE" \
#		|| exit 1;
#	}

	log_daemon_msg "Starting $DESC"
	start-stop-daemon --start --quiet --pidfile "$CP_PIDFILE" --chdir "$CP_HOME" --chuid "$CP_USER" --oknodo --exec "$PYTHON_BIN" $SSD_OPTS -- \
		CouchPotato.py --daemon --quiet --pid_file="$CP_PIDFILE" --data_dir="$CP_DATA" $CP_OPTS
	log_end_msg $? || exit $?
}

stop_cp() {
	log_daemon_msg "Stopping $DESC"
	# for security reasons, require the process to be both:
	# 1) listed in the pidfile and 2) running as $CP_USER
	start-stop-daemon --stop --quiet --pidfile "$CP_PIDFILE" --user "$CP_USER" --retry 15 --oknodo
	log_end_msg $? || exit $?
}

case "$1" in
	start)
		start_cp;;
	stop)
		stop_cp;;
	restart|force-reload)
		stop_cp && start_cp;;
	status)
		status_of_proc -p "$CP_PIDFILE" "$PYTHON_BIN" "$DESC"
		exit $?;;
	*)
		echo "Usage: $0 {start|stop|restart|force-reload|status}" >&2
		exit 3;;
esac

exit 0