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

NAME=shairport
START=94

SERVICE_DAEMONIZE=1
SERVICE_WRITE_PID=1

AP_PIDDIR=/var/run
AP_BIN=/usr/bin/shairport

append_arg() {
        local cfg="$1"
        local var="$2"
        local opt="$3"
        local def="$4"
        local val

        config_get val "$cfg" "$var"
        [ -n "$val" -o -n "$def" ] && append AP_ARGS "$opt ${val:-$def}"
}

append_bool() {
        local cfg="$1"
        local var="$2"
        local opt="$3"
        local def="$4"
        local val

        config_get_bool val "$cfg" "$var" "$def"
        [ "$val" = 1 ] && append AP_ARGS "$opt"
}

start_instance() {
	AP_ARGS=""
	local cfg="$1"
	local ao dev

	append_arg "$cfg" bname "-a" "AirPort"
	append_arg "$cfg" log "-l"
	append_arg "$cfg" initbuf "-b" "256"
	append_arg "$cfg" port "-p" "5002"
	append_arg "$cfg" password "-k"
	append_arg "$cfg" mdns "-m"

	append_arg "$cfg" cmd_start "-B"
	append_arg "$cfg" cmd_stop "-E"
	append_bool "$cfg" cmd_wait "-w"

	append_arg "$cfg" audio_output "-o"

	config_get ao "$cfg" audio_output ""
	if [ "$ao" = "alsa" ]; then
		config_get dev "$cfg" output_device ""
		if [ -n "$dev" ]; then
			append AP_ARGS "--"
			append_arg "$cfg" output_device "-d"
			append_arg "$cfg" mixer_device "-m"
			append_arg "$cfg" mixer_type "-t"
			append_arg "$cfg" mixer-control "-c"
			append_arg "$cfg" mixer-index "-i"
		fi
	fi

	SERVICE_PID_FILE=${AP_PIDDIR}/${NAME}_${cfg}.pid
	service_start $AP_BIN $AP_ARGS

	# Check if daemon is running, if not then
	# re-execute in foreground to display error.
	sleep 1 && service_check $AP_BIN || \
		$AP_BIN $AP_ARGS
}

stop_instance()
{
	local cfg="$1"

	SERVICE_PID_FILE=${AP_PIDDIR}/${NAME}_${cfg}.pid
	SERVICE_SIG_STOP="INT"
	service_stop $AP_BIN
}

start() {
	config_load shairport
	config_foreach start_instance shairport
}

stop() {
	config_load shairport
	config_foreach stop_instance shairport
}