package main

import (
	"fmt"
	"os"
	"os/exec"
	"time"

	"gopkg.in/redis.v5"
)

func printUserScreen(redisClient *redis.Client, username string) string {
	clearScreen()
	fmt.Printf(" %s\n", config.NethackLauncher.ServerDisplay)
	println("")
	fmt.Printf(" Logged in as: %s\n", username)
	println("")
	println(" l) Logout")
	println(" c) Change password")
	println(" w) Watch games in progress")
	println(" h) View highscores")
	println(" a) View all scores")
	println(" e) Edit config")
	println(" r) Recover from crash")
	fmt.Printf(" p) Play NetHack %s\n", config.NethackLauncher.NethackVersion)
	println(" q) Quit")
	println("")
	fmt.Printf(">> ")

	// 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)
		switch string(b) {
		case "l":
			// restart display
			exec.Command("stty", "-F", "/dev/tty", "echo", "-cbreak").Run()
			clearScreen()
			printWelcomeScreen(redisClient)
		case "e":
			hackRCLoc := fmt.Sprintf("%s/user/%s/.nethackrc", config.NethackLauncher.HackDir, username)
			exec.Command("stty", "-F", "/dev/tty", "echo", "-cbreak").Run()
			clearScreen()
			nh := exec.Command("vim", "-Z", hackRCLoc)
			nh.Stdout = os.Stdout
			nh.Stdin = os.Stdin
			nh.Stderr = os.Stderr
			nh.Run()
			clearScreen()
			printUserScreen(redisClient, username)
		case "c":
			printChangePasswordScreen(redisClient, username)
			clearScreen()
		case "w":
			clearScreen()
			printProgressScreen(redisClient, username)
		case "h":
			clearScreen()
			printHighScores(redisClient, username)
		case "a":
			clearScreen()
			printAllScores(redisClient, username)
		case "p":
			wg.Add(1)
			currentTime := time.Now().UTC()
			fulltime := currentTime.Format("2006-01-02.03:04:05")
			go runGame(username, fulltime)
			watcher := startWatcher(username, fulltime, redisClient)
			wg.Wait()
			close(watcher)
			printUserScreen(redisClient, username)
		case "r":
			clearScreen()
			recoverSave(redisClient, username)
		case "q":
			exec.Command("stty", "-F", "/dev/tty", "echo", "-cbreak").Run()
			clearScreen()
			os.Exit(0)
		default:
		}
	}
}