package main

import (
	"context"
	"fmt"
	"log"
	"net"
	"net/http"
	"os"
	"os/signal"
	"path/filepath"
	"strconv"
	"time"

	"forge.lightcrystal.systems/lightcrystal/underbbs/cli"
	"forge.lightcrystal.systems/lightcrystal/underbbs/server"
)

func main() {

	args := os.Args

	var err error = nil

	progname := filepath.Base(args[0])
	switch progname {
	case "underbbs-cli":
		err = run_cli(args[1:]...)
	default:
		err = run_srvr()
	}

	if err != nil {
		fmt.Println(err.Error())
	}
}

func run_cli(args ...string) error {
	return cli.Process(args...)
}

func run_srvr() error {
	l, err := net.Listen("tcp", ":"+strconv.FormatInt(int64(9090), 10))
	if err != nil {
		return err
	}

	bbsServer := server.New()
	s := &http.Server{
		Handler:      bbsServer,
		ReadTimeout:  time.Second * 10,
		WriteTimeout: time.Second * 10,
	}

	errc := make(chan error, 1)
	go func() {
		errc <- s.Serve(l)
	}()

	sigs := make(chan os.Signal, 1)
	signal.Notify(sigs, os.Interrupt)
	select {
	case err := <-errc:
		log.Printf("failed to serve: %v", err)
	case sig := <-sigs:
		log.Printf("terminating: %v", sig)
	}

	ctx, cancel := context.WithTimeout(context.Background(), time.Second*10)
	defer cancel()

	return s.Shutdown(ctx)
}