#!/sbin/openrc-run

service_name="${RC_SVCNAME#greptimedb.}"
description="GreptimeDB ${service_name} service"

command="/usr/bin/greptime"
command_user="${GREPTIMEDB_USER:-greptimedb}:${GREPTIMEDB_GROUP:-greptimedb}"
command_background="yes"
pidfile="/run/greptimedb/${RC_SVCNAME}.pid"
output_log="${GREPTIMEDB_LOG:-/var/log/greptimedb/${RC_SVCNAME}.log}"
error_log="${GREPTIMEDB_ERRLOG:-/var/log/greptimedb/${RC_SVCNAME}.log}"

build_command_args() {
	config_file="${GREPTIMEDB_CONFIG:-/etc/greptimedb/${service_name}.toml}"
	log_dir="${GREPTIMEDB_LOG_DIR:-/var/log/greptimedb/${service_name}}"
	data_home="${GREPTIMEDB_DATA_HOME:-/var/lib/greptimedb/${service_name}}"
	wal_dir="${GREPTIMEDB_WAL_DIR:-/var/lib/greptimedb/${service_name}/wal}"

	command_args="${GREPTIMEDB_GLOBAL_OPTS:-} ${service_name} start -c ${config_file} --log-dir ${log_dir}"

	case "$service_name" in
		datanode)
			command_args="$command_args --data-home ${data_home} --wal-dir ${wal_dir}"
			;;
		metasrv|standalone)
			command_args="$command_args --data-home ${data_home}"
			;;
	esac

	command_args="$command_args ${GREPTIMEDB_OPTS:-}"
}

build_command_args

depend() {
	need net
	case "$service_name" in
		datanode|flownode|frontend)
			after greptimedb.metasrv
			;;
	esac
}

start_pre() {
	checkpath -d -m 0755 -o "${GREPTIMEDB_USER:-greptimedb}:${GREPTIMEDB_GROUP:-greptimedb}" \
		/run/greptimedb \
		/var/log/greptimedb \
		/var/lib/greptimedb \
		"$log_dir"

	case "$service_name" in
		datanode)
			checkpath -d -m 0750 -o "${GREPTIMEDB_USER:-greptimedb}:${GREPTIMEDB_GROUP:-greptimedb}" \
				"$data_home" "$wal_dir"
			;;
		metasrv|standalone)
			checkpath -d -m 0750 -o "${GREPTIMEDB_USER:-greptimedb}:${GREPTIMEDB_GROUP:-greptimedb}" \
				"$data_home"
			;;
	esac
}