DMAC/cmd/reactor/main.go

package main

import (
	"FRMS/internal/pkg/config"
	"FRMS/internal/pkg/logging"
	"FRMS/internal/pkg/reactor"

	flag "github.com/spf13/pflag"
	"github.com/spf13/viper"
)

type coordinator interface {
	Start()
}

func NewCoordinator(ip string, port int, ch chan error) coordinator {
	// allows interface checking as opposed to calling directly
	return reactor.NewCoordinator(ip, port, ch)
}

type Config interface {
	Load() error  // load config, keys and env for a string
	Store() error // write any pending changes
}

func NewConfig(fname string) Config {
	if conf, err := config.NewConfig(fname); err != nil {
		panic(err)
	}
	return conf
}

func main() {

	// load any stored settings
	conf := NewConfig("reactor") // loads .yaml and flags
	conf.Load()                  // load exisiting settings

	// get overrides
	var ip string
	var port int
	/*
	   flag.Usage = func() {
	       w := flag.CommandLine.Output()
	       fmt.Fprintf(w, "Usage: %s port \n",os.Args[0])
	   }*/
	iptr := flag.String("ip", "192.168.100.2", "server ip")
	portptr := flag.String("port", 2022, "server port")
	nameptr := flag.String("name", "", "human readable name")

	flag.Parse()

	// lets us retrieve them from viper later

	if err := viper.BindPFlags(flag.CommandLine); err != nil {
		panic(err)
	}

	ch := make(chan error)
	rlc := NewCoordinator(ch) // passing only err chan
	go rlc.Start()
	logging.Debug(logging.DStart, "Reactor Started")
	for err = range ch {
		if err != nil {
			panic(err)
		}
	}
}