#!/sbin/openrc-run
# Copyright 1999-2024 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

depend() {
	after mta
}

PID_DIR="/run/ht"
LOG_DIR=${LOG_DIR:-"/var/log/ht"}
HT_USER=${HT_USER:-"apache"}

list_instance_dirs() {
	if [ -z "${INSTANCE_DIRS}" ]; then
		cut -d" " -f4 /var/db/webapps/healthchecks/*/installs 2>/dev/null
	else
		printf "%s\n" ${INSTANCE_DIRS}
	fi
}

instance_dir_to_name() {
	local name

	name=${1#/}
	printf %s "${name}" | awk '{
		gsub("/", "--");
		print $0;
	}'
}

start_pre() {
	mkdir -p "${PID_DIR}" "${LOG_DIR}" || return 1
	chown "${HT_USER}":apache "${LOG_DIR}" || return 1
}

start() {
	local instance_dir instance_name ret=1

	IFS="
"
	for instance_dir in $(list_instance_dirs); do
		if [ -d "${instance_dir}" ]; then
			if [ ! -f "${instance_dir}"/manage.py ]; then
				ewarn "Healtchecks send alerts instance in ${instance_dir} has no manage.py script"
			else
				instance_name="$(instance_dir_to_name "${instance_dir}")-sendalerts"
				ebegin "Starting Healtchecks send alerts update daemon in ${instance_dir}"
				start-stop-daemon --start --user "${HT_USER}":apache \
								  --background --wait 2000 \
								  --stdout "${LOG_DIR}/${instance_name}.log" \
								  --stderr "${LOG_DIR}/${instance_name}.log" \
								  --make-pidfile --pidfile "${PID_DIR}/${instance_name}.pid" \
								  --exec "${instance_dir}"/manage.py \
								  -- sendalerts --loop --skip-checks
				eend $? && ret=0
			fi
		else
			eerror "Healtchecks send alerts instance in ${instance_dir} is missing"
		fi
	done
	unset IFS

	# Succeed if at least one started.
	return ${ret}
}

stop() {
	local instance_dir instance_name

	IFS="
"
	for instance_dir in $(list_instance_dirs); do
		instance_name="$(instance_dir_to_name "${instance_dir}")-sendalerts"

		[ -f "${PID_DIR}/${instance_name}.pid" ] ||
			[ -f "${instance_dir}"/manage.py ] ||
			continue

		ebegin "Stopping Healtchecks send alerts update daemon in ${instance_dir}"
		start-stop-daemon --stop --retry 5 --pidfile "${PID_DIR}/${instance_name}.pid" \
						  --exec "${instance_dir}"/manage.py
		eend $?
	done
	unset IFS

	# Always succeed.
	return 0
}

status() {
	local instance_dir instance_name pid

	IFS="
"
	for instance_dir in $(list_instance_dirs); do
		instance_name="$(instance_dir_to_name "${instance_dir}")-sendalerts"

		[ -f "${PID_DIR}/${instance_name}.pid" ] || continue

		if start-stop-daemon --signal 0 --pidfile "${PID_DIR}/${instance_name}.pid"; then
			# At least one instance is running
			return 0
		fi
	done
	unset IFS

	# No instances are running
	return 3
}