package main

import (
	"flag"
	"log"
	"os"
	"os/signal"
	"syscall"
	"time"

	"github.com/tarm/serial"
)

func readSerial(s *serial.Port, interval *time.Duration) {

}

func main() {
	var interval = flag.Duration("interval", 5*time.Second, "Minimum time between releve")
	flag.Parse()

	if len(flag.Args()) < 1 {
		log.Println("missing required argument: serial device (eg. /dev/ttyUSB0)")
		return
	}

	config := &serial.Config{
		Name:     flag.Args()[0],
		Baud:     9600,
		Size:     7,
		Parity:   serial.ParityNone,
		StopBits: 1,
	}

	s, err := serial.OpenPort(config)
	if err != nil {
		log.Fatal(err)
	}

	go readSerial(s, interval)

	interrupt := make(chan os.Signal, 1)
	signal.Notify(interrupt, os.Interrupt, syscall.SIGTERM)
	<-interrupt
}