server.js

const express = require("express");
const mustacheExpress = require("mustache-express");
const bodyParser = require("body-parser");
const expressSession = require("express-session");
const expressValidator = require("express-validator");

const fs = require("fs");
const words = fs.readFileSync("./words.js", "utf-8").toLowerCase().split("\n");
const app = express();

app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));
app.use(expressValidator());
app.use(express.static("public"));
app.use(expressSession({ secret: "max", saveUninitialized: true, resave: false }));
app.engine("mustache", mustacheExpress());
app.set("views", "./views");
app.set("view engine", "mustache");

app.on("error", (res, req) => {
  res.render("error");
});

const wordGen = function () {
  let i = Math.floor(Math.random() * words.length);
  return words[i];
};

app.get("/", (req, res) => {
  game = req.session;
  if (!game.word || game.guessesLeft <= 0) {
    game.word = wordGen();
    game.guessesLeft = 8;
    game.lettersGuessed = [];
    game.mysteryWord = Array(game.word.length).fill("*");
  }
  console.log("WORD: " + req.session.word);
  res.render("home", game);
});
app.get("/guess", (req, res) => {
  res.redirect("/");
});
app.post("/guess", (req, res) => {
  const game = req.session;
  const guessedLetter = req.body.letter;

  if (!game.word) {
    res.redirect("/");
  }

  if (game.lettersGuessed.includes(guessedLetter)) {
    game.message = ` ERROR DUPLICATE INPUT "${guessedLetter}"`;
    console.log(game.message);
  } else {
    game.message = " ";
    game.lettersGuessed.push(guessedLetter);
  }
  game.mysteryWord = game.word.split("").map((letter) => {
    if (game.lettersGuessed.includes(letter)) {
      return letter;
    } else {
      return " * ";
    }
  });

  console.log(game.mysteryWord, guessedLetter);

  if (!game.mysteryWord.includes(guessedLetter) && !game.mysteryWord.includes(guessedLetter)) {
    game.guessesLeft -= 1;
  }

  if (game.mysteryWord.join("") === game.word) {
    res.render("win", { word: game.word });
    return;
  }

  if (game.guessesLeft <= 0) {
    res.render("lose", { word: game.word });
    return;
  }

  console.log(game.lettersGuessed);
  console.log(game.guessesLeft);
  res.redirect("/");
});

app.listen(3000, () => {
  console.log("Listening level over level 3000!");
});