felt/main.go

package main

import (
	"context"
	"hacklab.nilfm.cc/felt/cmd"
	"hacklab.nilfm.cc/felt/config"
	"hacklab.nilfm.cc/felt/gametable"
	"hacklab.nilfm.cc/felt/mongodb"
	"hacklab.nilfm.cc/felt/register"
	"hacklab.nilfm.cc/quartzgun/indentalUserDB"
	"log"
	"net"
	"net/http"
	"os"
	"os/signal"
	"path/filepath"
	"strconv"
	"time"
)

func main() {
	err := run()
	if err != nil {
		log.Fatal(err)
	}
}

func run() error {
	cfg := config.ReadConfig()
	if cfg.IsNull() {
		cfg.RunWizard()
	}

	udb := indentalUserDB.CreateIndentalUserDB(
		filepath.Join(config.GetConfigLocation(), "user.db"))

	crypto := &register.SymmetricCrypt{Secret: cfg.RegistrationSecret}
	if cmd.ProcessCmd(os.Args, udb, crypto) {
		os.Exit(0)
	}

	l, err := net.Listen("tcp", ":"+strconv.FormatInt(int64(cfg.Port), 10))
	if err != nil {
		return err
	}

	dbEngine := &mongodb.DbEngine{}
	err = dbEngine.Init(cfg.MongoURI)
	if err != nil {
		return err
	}

	gt := gametable.New(dbEngine, udb, cfg.Uploads, cfg.UploadMaxMB, cfg.RegistrationSecret)
	s := &http.Server{
		Handler:      gt,
		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)
}