#!/sbin/openrc-run

: ${ELEMENTSD_CONFIGFILE:=/etc/elements/elements.conf}
: ${ELEMENTSD_PIDDIR:=/run/elementsd}
: ${ELEMENTSD_PIDFILE:=${ELEMENTSD_PIDDIR}/${SVCNAME}.pid}
: ${ELEMENTSD_DATADIR:=/var/lib/elementsd}
: ${ELEMENTSD_LOGDIR:=/var/log/elementsd}
: ${ELEMENTSD_USER:=${BITCOIN_USER:-elements}}
: ${ELEMENTSD_GROUP:=elements}
: ${ELEMENTSD_BIN:=/usr/bin/elementsd}
: ${ELEMENTSD_NICE:=${NICELEVEL:-0}}
: ${ELEMENTSD_OPTS=${BITCOIN_OPTS}}

name="Elements daemon"
description="Elements cryptocurrency P2P network daemon"

required_files="${ELEMENTSD_CONFIGFILE}"
pidfile="${ELEMENTSD_PIDFILE}"
in_background_fake="start"

depend() {
	need localmount net
}

start_pre() {
	checkpath -f --mode 0660 --owner "${ELEMENTSD_USER}:${ELEMENTSD_GROUP}" "${ELEMENTSD_CONFIGFILE}"
	checkpath -d --mode 0750 --owner "${ELEMENTSD_USER}:${ELEMENTSD_GROUP}" "${ELEMENTSD_DATADIR}"
	checkpath -d --mode 0755 --owner "${ELEMENTSD_USER}:${ELEMENTSD_GROUP}" "${ELEMENTSD_LOGDIR}"
	checkpath -d --mode 0755 --owner "${ELEMENTSD_USER}:${ELEMENTSD_GROUP}" "${ELEMENTSD_PIDDIR}"
	checkconfig
}

start() {
	ebegin "Starting ${name}"
	mark_service_inactive
	if start-stop-daemon \
		--pidfile="${ELEMENTSD_PIDFILE}" \
		--chdir="${ELEMENTSD_DATADIR}" \
		--user="${ELEMENTSD_USER}:${ELEMENTSD_GROUP}" \
		--nice="${ELEMENTSD_NICE}" \
		--exec="${ELEMENTSD_BIN}" \
		-- \
		-daemonwait \
		-pid="${ELEMENTSD_PIDFILE}" \
		-conf="${ELEMENTSD_CONFIGFILE}" \
		-datadir="${ELEMENTSD_DATADIR}" \
		-debuglogfile="${ELEMENTSD_LOGDIR}/debug.log" \
		${ELEMENTSD_OPTS}
	then
		chmod g+r "${ELEMENTSD_DATADIR}/.cookie"
		IN_BACKGROUND=yes rc-service "${SVCNAME}" --quiet start
	else
		rc-service "${SVCNAME}" --quiet zap
	fi &
}

stop() {
	ebegin "Stopping ${name}"
	start-stop-daemon --stop \
		--pidfile="${ELEMENTSD_PIDFILE}" \
		--retry="${ELEMENTSD_SIGTERM_TIMEOUT}" \
		--exec="${ELEMENTSD_BIN}"
	eend $?
}

checkconfig() {
	if grep -qs '^rpcuser=' "${ELEMENTSD_CONFIGFILE}" &&
		! grep -qs '^rpcpassword=' "${ELEMENTSD_CONFIGFILE}"
	then
		eerror ""
		eerror "ERROR: You must set a secure rpcpassword to run elementsd."
		eerror "The setting must appear in ${ELEMENTSD_CONFIGFILE}"
		eerror ""
		eerror "This password is security critical to securing wallets "
		eerror "and must not be the same as the rpcuser setting."
		eerror "You can generate a suitable random password using the following "
		eerror "command from the shell:"
		eerror ""
		eerror "bash -c 'tr -dc a-zA-Z0-9 < /dev/urandom | head -c32 && echo'"
		eerror ""
		eerror "It is recommended that you also set alertnotify so you are "
		eerror "notified of problems:"
		eerror ""
		eerror "ie: alertnotify=echo %%s | mail -s \"Elements Alert\"" \
			"admin@foo.com"
		eerror ""
		return 1
	fi
}