nethack-launcher/nethack-launcher.go

package main

import (
	"flag"
	"fmt"
	"io/ioutil"
	"net/http"
	"os"
	"os/exec"

	"github.com/unixvoid/glogger"
)

var (
	loglevel        string
	recordlocation  string
	reclistlocation string
	port            = 8080
)

func main() {
	// init runtime args
	flag.StringVar(&loglevel, "loglevel", "debug", loglevel)
	flag.StringVar(&recordlocation, "recordlocation", "record", recordlocation)
	flag.StringVar(&reclistlocation, "reclistlocation", "reclist", reclistlocation)
	flag.Parse()

	// init config file and logger
	initLogger(loglevel)

	//// // make sure record file exists
	//// if _, err := os.Stat(recordlocation); os.IsNotExist(err) {
	//// 	glogger.Info.Printf("record file not found in %s\n", recordlocation)
	//// 	fmt.Printf("%s\n", err)
	//// 	os.Exit(1)
	//// }
	//// // make sure reclist bin exists
	//// if _, err := os.Stat(reclistlocation); os.IsNotExist(err) {
	//// 	glogger.Info.Printf("reclist binary not found in %s\n", reclistlocation)
	//// 	fmt.Printf("%s\n", err)
	//// 	os.Exit(1)
	//// }

	clearScreen()
	printWelcomeScreen()

	// disable input buffering
	exec.Command("stty", "-F", "/dev/tty", "cbreak", "min", "1").Run()
	// do not display entered characters on the screen
	exec.Command("stty", "-F", "/dev/tty", "-echo").Run()

	var b []byte = make([]byte, 1)
	for {
		os.Stdin.Read(b)
		//fmt.Println("I got the byte", b, "("+string(b)+")")
		switch string(b) {
		case "q":
			clearScreen()
			os.Exit(0)
		default:
			//fmt.Printf("command '%s' not implimented\n", string(b))
			//fmt.Printf(">> ")
		}
	}
	//scanner := bufio.NewScanner(os.Stdin)
	//for scanner.Scan() {
	//	//fmt.Println(scanner.Text())
	//	switch scanner.Text() {
	//	case "q":
	//		os.Exit(0)
	//	default:
	//		fmt.Printf("command '%s' not implimented\n", scanner.Text())
	//		fmt.Printf(">> ")
	//	}
	//}
	//if err := scanner.Err(); err != nil {
	//	log.Println(err)
	//}
}

func initLogger(loglevel string) {
	// init logger
	if loglevel == "debug" {
		glogger.LogInit(os.Stdout, os.Stdout, os.Stdout, os.Stderr)
	} else if loglevel == "cluster" {
		glogger.LogInit(os.Stdout, os.Stdout, ioutil.Discard, os.Stderr)
	} else if loglevel == "info" {
		glogger.LogInit(os.Stdout, ioutil.Discard, ioutil.Discard, os.Stderr)
	} else {
		glogger.LogInit(ioutil.Discard, ioutil.Discard, ioutil.Discard, os.Stderr)
	}
}

func clearScreen() {
	cmd := exec.Command("clear")
	cmd.Stdout = os.Stdout
	cmd.Run()
}

func printWelcomeScreen() {
	println("unixvoid.com underground nethack server")
	println("")
	println(" Not logged in.")
	println("")
	println(" l) Login")
	println(" r) Register new user")
	println(" w) Watch games in progress")
	println(" q) Quit")
	println("")
	fmt.Printf(">> ")
}

func gethighscore(w http.ResponseWriter, r *http.Request) {
	// run script
	output, err := exec.Command(reclistlocation,
		"-f",
		recordlocation).CombinedOutput()
	if err != nil {
		fmt.Printf("%s\n", err)
	}

	fmt.Fprintf(w, "%s\n", output)
}