#!/bin/sh /etc/rc.common

START=95
USE_PROCD=1
PROG=/usr/bin/dhtd
OPTS=""


boot() {
	# Wait for the loopback interface to be ready
	ubus -t 30 wait_for network.interface network.loopback 2>/dev/null
	rc_procd start_service
}

xappend() {
	local name="$2" value="$1"
	OPTS="$OPTS\n--${name//_/-} ${value//'/\\'}"
}

append_opts_list() {
	local name cfg="$1"; shift
	for name in $*; do
		config_list_foreach "$cfg" "$name" xappend "$name"
	done
}

append_opts() {
	local name value cfg="$1"; shift
	for name in $*; do
		config_get value "$cfg" "$name"
		[ -n "$value" ] && xappend "$value" "$name"
	done
}

append_opts_boolean() {
	local name value cfg="$1"; shift
	for name in $*; do
		config_get_bool value "$cfg" "$name" 0
		[ $value -gt 0 ] && xappend '' $name
	done
}

section_enabled() {
	config_get_bool enabled "$1" 'enabled' 0
	[ $enabled -gt 0 ]
}

start_instance() {
	local cfg="$1"
	local CONFIG_FILE=/tmp/dhtd.${cfg}.conf

	section_enabled "$cfg" || return
	. /lib/functions/network.sh

	OPTS=""

	append_opts "$cfg" verbosity peerfile port

	config_get ifname "$cfg" "ifname"
	if network_get_device IFNAME "$ifname";then
		xappend "$IFNAME" "ifname"
	else
		[ -n "$ifname" ] && xappend "$ifname" "ifname"
	fi

	append_opts_list "$cfg" announce peer

	append_opts_boolean "$cfg" lpd_disable ipv4 ipv6

	# Close stdin when command line interface is present
	if [ $($PROG --version | grep -c cli) -eq 1 ]; then
		xappend "" "cli_disable_stdin"
	fi

	echo -e "$OPTS" > $CONFIG_FILE

	procd_open_instance
	procd_set_param command $PROG
	procd_set_param file $CONFIG_FILE
	procd_set_param stderr 1
	procd_set_param stdout 1
	procd_append_param command --config $CONFIG_FILE
	procd_close_instance
}

stop_instance() {
	local cfg="$1"
	local CONFIG_FILE=/tmp/dhtd.${cfg}.conf

	rm -f $CONFIG_FILE
}

add_interface_trigger() {
	local ifname

	config_get ifname "$1" ifname

	[ -n "$ifname" ] && procd_add_interface_trigger "interface.*" "$ifname" /etc/init.d/dhtd restart
}

service_triggers() {
	procd_add_reload_trigger "dhtd"

	config_load dhtd
	config_foreach add_interface_trigger dhtd
}

start_service() {
	config_load 'dhtd'
	config_foreach start_instance 'dhtd'
}

stop_service() {
	config_load 'dhtd'
	config_foreach stop_instance 'dhtd'
}