// vim: shiftwidth=4 tabstop=4 noexpandtab

package main

import (
	"log"
	"time"
	"os"
	"io/ioutil"
	"encoding/json"
)

const (
	CONFIG_FILE = "/etc/birdscan/config.json"
)

type config struct {
	WebConfig webConfig `json:"webserver"`
}

func main() {
	log.SetFlags(0)  // disable timestamp because systemd takes care of that
	log.Println("Starting birdscan")
	cfg := readConfig()
	go runServer(&cfg.WebConfig)
	for {
		time.Sleep(1 * time.Second)
	}
}

func readConfig() config {

	log.Printf("Reading config file %s", CONFIG_FILE)
	var retval config

	// open the config file
	configFile, err := os.Open(CONFIG_FILE)
	defer configFile.Close()
	if err != nil {
		log.Fatalf("Could not open configuration file %s", CONFIG_FILE)
	}

	// read byte content
	byteData, err := ioutil.ReadAll(configFile)
	if err != nil {
		log.Fatalf("Could not read configuration file %s", CONFIG_FILE)
	}

	// parse content to config structs
	err = json.Unmarshal(byteData, &retval)
	if err != nil {
		log.Fatalf("Could not parse configuration file %s", CONFIG_FILE)
	}

	return retval
}