package main

import (
	"flag"
	"log"
	"os"
	"path"
)

func main() {
	configFile := flag.String("config", "", "path to configuration file")
	flag.Parse()

	if *configFile == "" {
		homedir, err := os.UserHomeDir()
		if err == nil && homedir != "" {
			*configFile = path.Join(homedir, ".config", "twins", "config.yaml")
		}
	}

	err := readconfig(*configFile)
	if err != nil {
		log.Fatalf("failed to read configuration file at %s: %v\nSee CONFIGURATION.md for information on configuring twins", *configFile, err)
	}

	if config.Address == "" {
		log.Fatal("listen address must be specified")
	}

	if config.Cert == "" || config.Key == "" {
		log.Fatal("certificate file and private key must be specified (gemini requires TLS for all connections)")
	}

	listen(config.Address, config.Cert, config.Key)
}