#!/bin/sh /etc/rc.common
# shellcheck disable=SC3043

START=50
USE_PROCD=1

start_service() {
	config_load 'earlyoom'

	for opt in memory_term_percent memory_kill_percent \
		swap_term_percent swap_kill_percent memory_term_kib \
		memory_kill_kib swap_term_kib swap_kill_kib prefer_regex \
		avoid_regex ignore_regex report_interval \
		pre_script_path post_script_path
	do
		local "$opt"
		config_get "$opt" 'main' "$opt"
	done

	for opt in debug_log high_priority kill_process_group \
		sort_by_rss dry_run syslog
	do
		local "$opt"
		config_get_bool "$opt" 'main' "$opt" 0
	done

	procd_open_instance
	procd_set_param command '/usr/sbin/earlyoom'
	procd_set_param stderr 1
	procd_set_param respawn

	[ "$memory_term_percent" -gt '0' ] || [ "$memory_kill_percent" -gt '0' ] &&
		procd_append_param command -m "$memory_term_percent","$memory_kill_percent"
	[ "$swap_term_percent" -gt '0' ] || [ "$swap_kill_percent" -gt '0' ] &&
		procd_append_param command -s "$swap_term_percent","$swap_kill_percent"

	[ "$memory_term_kib" -gt '0' ] || [ "$memory_kill_kib" -gt '0' ] &&
		procd_append_param command -M "$memory_term_kib","$memory_kill_kib"
	[ "$swap_term_kib" -gt '0' ] || [ "$swap_kill_kib" -gt '0' ] &&
		procd_append_param command -S "$swap_term_kib","$swap_kill_kib"
	
	[ -n "$prefer_regex" ] && procd_append_param command --prefer "$prefer_regex"
	[ -n "$avoid_regex" ] && procd_append_param command --avoid "$avoid_regex"
	[ -n "$ignore_regex" ] && procd_append_param command --ignore "$ignore_regex"

	[ -x "$pre_script_path" ] && procd_append_param command -P "$pre_script_path"
	[ -x "$post_script_path" ] && procd_append_param command -N "$post_script_path"

	[ -n "$report_interval" ] && procd_append_param command -r "$report_interval"

	[ "$debug_log" -eq '1' ] && procd_append_param command -d
	[ "$high_priority" -eq '1' ] && procd_append_param command -p
	[ "$kill_process_group" -eq '1' ] && procd_append_param command -g
	[ "$sort_by_rss" -eq '1' ] && procd_append_param command --sort-by-rss
	[ "$dry_run" -eq '1' ] && procd_append_param command --dryrun
	[ "$syslog" -eq '1' ] && procd_append_param command --syslog

	procd_close_instance
}

service_triggers() {
	procd_add_reload_trigger 'earlyoom'
}