#!/bin/sh /etc/rc.common
# shellcheck disable=SC2039
# vim: set noexpandtab tabstop=4 shiftwidth=4 softtabstop=4 :

# shellcheck disable=SC2034
{
	START=90
	STOP=10
	USE_PROCD=1
}

_validate_section() {
	local tmp_hosts=$hosts tmp_timeout=$timeout tmp_tries=$tries
	local tmp_interval=$interval tmp_options=$options tmp_type=$type

	uci_validate_section omr-tracker "$1" "$2" \
		'hosts:list(host)'  \
		'timeout:uinteger'  \
		'tries:uinteger'    \
		'interval:uinteger' \
		'type:string'       \
		'options:string'

	[ -z "$hosts"    ] && hosts=$tmp_hosts
	[ -z "$timeout"  ] && timeout=$tmp_timeout
	[ -z "$tries"    ] && tries=$tmp_tries
	[ -z "$interval" ] && interval=$tmp_interval
	[ -z "$options"  ] && options=$tmp_options
	[ -z "$type"  ] && type=$tmp_type
}

_launch_tracker() {
	case "$1" in
		loopback|lan*|if0*|tun*) return;;
	esac

	local interface_type
	config_get interface_type "$1" type

	local hosts timeout tries interval options type
	_validate_section "defaults" "defaults"
	_validate_section "interface" "$1"

	local ifname ip4table
	config_get ifname "$1" ifname
	config_get multipath "$1" multipath
	config_get gateway "$1" gateway

	[ -z "$ifname" ] || [ -z "$multipath" ] || [ "$multipath" = "off" ] && [ "$1" != "glorytun" ] && return
	[ -z "$type" ] && type="ping"

	procd_open_instance
	# shellcheck disable=SC2086
	procd_set_param command /bin/omr-tracker "$1" $options
	procd_append_param env "OMR_TRACKER_HOSTS=$hosts"
	procd_append_param env "OMR_TRACKER_TIMEOUT=$timeout"
	procd_append_param env "OMR_TRACKER_TRIES=$tries"
	procd_append_param env "OMR_TRACKER_INTERVAL=$interval"
	procd_append_param env "OMR_TRACKER_TABLE=$ip4table"
	procd_append_param env "OMR_TRACKER_DEVICE=$ifname"
	procd_append_param env "OMR_TRACKER_DEVICE_GATEWAY=$gateway"
	procd_append_param env "OMR_TRACKER_TYPE=$type"
	procd_set_param respawn 0 10 0
	procd_set_param stderr 1
	procd_close_instance
}

start_service() {
	config_load network
	config_foreach _launch_tracker interface
}

service_triggers() {
	procd_add_reload_trigger omr-tracker network
}

reload_service() {
	stop
	start
}