package main

import (
	// External
	"git.gibonuddevalla.se/go/vlog"

	// Standard
	"flag"
	"log/slog"
	"os"
	"path"
)

const VERSION = "v1"

var (
	flagVersion bool
	flagDev     bool
	flagDebug   bool
	flagConfig  string

	config     Config
	initLogger *slog.Logger
	logger     *slog.Logger

	device RouterosDevice
)

func init() {// {{{
	initLogger = slog.New(slog.NewJSONHandler(os.Stdout, &slog.HandlerOptions{}))

	confDir, err := os.UserConfigDir()
	if err != nil {
		initLogger.Error("application", "error", err)
		os.Exit(1)
	}
	defConfFilename := path.Join(confDir, "routeros_dns.json")

	flag.BoolVar(&flagVersion, "version", false, "Print version and exit")
	flag.BoolVar(&flagDev, "dev", false, "Load each static file from disk")
	flag.BoolVar(&flagDebug, "debug", false, "Debugging log level")
	flag.StringVar(&flagConfig, "config", defConfFilename, "Path to filename for configuration")
	flag.Parse()

	config, err = readConfig()
	if err != nil {
		initLogger.Error("application", "error", err)
		os.Exit(1)
	}

	logger = initLogging(config)
}// }}}
func initLogging(config Config) (*slog.Logger) {// {{{
	opts := slog.HandlerOptions{}
	if flagDebug {
		opts.Level = slog.LevelDebug
	}
	handler := vlog.New(
		os.Stdout,
		opts,
		config.Logging.LogDir,
		config.Logging.URL,
		"routeros-dns",
		config.Logging.System,
		config.Logging.Instance,
	)
	return slog.New(handler)
}// }}}

func main() {
	initLogger.Info("application", "version", VERSION)

	device.Host = config.Device.Address
	device.Port = config.Device.Port
	device.Username = config.Device.Username
	device.Password = config.Device.Password
	device.Timeout = config.Device.Timeout
	device.Init()

	registerWebserverHandlers()
	startWebserver()
}