#!/bin/sh
# description: Start or stop telegram-bash-bot
#
# example service script to run bashbot in background as specified user
#
# tested on: ubuntu, opensuse, debian
#
#### $$VERSION$$ v1.45-dev-60-g2415814
# shellcheck disable=SC2009
# shellcheck disable=SC2181

#
### BEGIN INIT INFO
# Provides: bashbot
# Required-Start: $network $syslog
# Required-Stop: $network
# Default-Start: 2 3 5
# Default-Stop: 0 1 6
# Description: Start or stop telegram-bot-bash server
### END INIT INFO

# save default values
TERM="" # disable bashbot clear and color output
runcmd="echo Dry run:" # not activated until you edit lines below

#######################
# Configuration Section

# edit the next line to fit the user you want to run bashbot, e.g. nobody:
runas="nobody"

# uncomment one of the example lines to fit your system 
# runcmd="su ${runas} -s /bin/bash -c "      # runasuser with *su*
# runcmd="runuser ${runas} -s /bin/bash -c " # runasuser with *runuser*

# edit the values of the following lines to fit your config:
# your bot name as given to botfather, e.g. mysomething_bot
name=""
# your bot installation dir
bashbotdir="/usr/local/telegram-bot-bash"
databotdir="${bashbotdir}/data-bot-bash"
# programs to run
bashbot="cd ${bashbotdir}; ${bashbotdir}/bashbot.sh"
webhook="cd ${bashbotdir}; ${bashbotdir}/bin/process_batch.sh --start --watch ${databotdir}/webhook-fifo-${name}"
# set additionl parameter, e.g. debug
mode=""

# END Configuration
#######################

[ "${name}" = "" ] && name="${runas}"

case "$1" in
'start')
	# shellcheck disable=SC2250
	$runcmd "$bashbot start $mode" # >/dev/null 2>&1 </dev/null
	RETVAL=$?
	;;
'starthook')
	# shellcheck disable=SC2250
	$runcmd "$webhook $mode" # >/dev/null 2>&1 </dev/null
	RETVAL=$?
	;;
'stop')
	# shellcheck disable=SC2250
	$runcmd "$bashbot stop $mode"
	RETVAL=$?
	;;
'stophook')
	# shellcheck disable=SC2250
	pkill -u "${runas}" "process_batch.sh"
	RETVAL=$?
	;;
'status')
	ps -f -u "${runas}" | grep "${name}" | grep -qF "process_batch.sh --start --watch"
	if [ "$?" = "0" ]; then
		printf "bashbot (%s) is running in poll mode\n" "${name}"
		RETVAL=0
	else
		ps -f -u "${runas}" | grep "${name}" | grep -qF ""
		if [ "$?" = "0" ]; then
			printf "bashbot (%s) is running in webhook mode\n" "${name}"
			RETVAL=0
		else
			printf "bashbot (%s) is stopped\n" "${name}"
			RETVAL=1
		fi
	fi
	;;
'restart'|'reload')
	$0 stop; $0 start 
	RETVAL=$?
	;;
'restarthook'|'reloadhook')
	$0 stophook; $0 starthook 
	RETVAL=$?
	;;
'restartback')
	$0 suspendback; $0 resumeback 
	RETVAL=$?
	;;
'suspendback'|'resumeback'|'killback')
	# shellcheck disable=SC2250
	$runcmd "$bashbot $1 $mode"
	RETVAL=$?
	# kill inotifywait from runuser
	if [ "$1" != "resumeback" ]; then 
		# shellcheck disable=SC2046
		kill -9 $(ps -u "${runas}" | grep inotifywait | sed 's/ .*//') >/dev/null 2>&1
	fi  
	;;
*)
	printf "%s\n" "Usage: $0 { start | stop | starthook | restart | reload | restartback | suspendback | resumeback | killback }"
	RETVAL=1
	;;
esac
exit "${RETVAL}"