app.js

"use strict";

var express = require("express"),
  app = express(),
  mongoose = require("mongoose"),
  Player = require("./models/player"),
  methodOverride = require("method-override"),
  bodyParser = require("body-parser");

// App configuration
app.set("view engine", "ejs");
app.use(express.static(__dirname + "/public"));

// Automatically parse request body as form data.
app.use(bodyParser.urlencoded({ extended: false }));
app.use(bodyParser.json());
app.use(methodOverride("_method"));

// Set up default mongoose connection
const host = process.env.HOST || "mongodb://localhost:27017/color-game";
mongoose.connect(host, { useNewUrlParser: true, useUnifiedTopology: true }, function (err) {
  if (err) {
    console.log("Connection error to database");
  } else {
    console.log("Connected to database");
  }
});
// Get the default connection
var db = mongoose.connection;
// Bind connection to error event (to get notification of connection errors)
db.on("error", console.error.bind(console, "MongoDB connection error:"));

// Landing route
app.get("/", function (req, res) {
  res.render("index");
});

// Game route
app.post("/color-game", function (req, res) {
  var newPlayer = {
    playername: req.body.playername,
    score: 0,
  };
  Player.create(newPlayer, function (err, newlyCreated) {
    if (err) {
      console.log(err);
      res.render("error", { error: err });
    } else {
      // Redirect to play the game
      res.render("game", { player: newlyCreated });
    }
  });
});

// Update database on game end
app.put("/color-game", function (req, res) {
  const obj = JSON.parse(JSON.stringify(req.body));
  var player = {
    name: obj["data[playerName]"],
    score: obj["data[score]"],
    difficulty: obj["data[difficulty]"],
  };
  let id = obj["data[id]"];
  Player.findByIdAndUpdate(id, player, function (err, updated) {
    if (err) {
      console.log(err);
      res.render("error", { error: err });
    } else {
      // Redirect to play the game
      res.redirect("/scores");
    }
  });
});

// High Scores route
app.get("/scores", function (req, res) {
  Player.find({}, function (err, players) {
    if (err) {
      req.flash("error", "Problem finding players in database");
      console.log(err);
      res.render("error", { error: err });
    } else {
      let playersEasy = players.filter((obj) => {
        return obj.difficulty === "easy";
      });
      playersEasy.sort((a, b) => {
        return b.score - a.score;
      });
      let playersNormal = players.filter((obj) => {
        return obj.difficulty === "normal";
      });
      playersNormal.sort((a, b) => {
        return b.score - a.score;
      });
      let playersHard = players.filter((obj) => {
        return obj.difficulty === "hard";
      });
      playersHard.sort((a, b) => {
        return b.score - a.score;
      });
      res.render("scores", {
        playersEasy: playersEasy,
        playersNormal: playersNormal,
        playersHard: playersHard,
      });
    }
  });
});
app.put("/scores", function (req, res) {
  Player.find({}, function (err, players) {
    if (err) {
      req.flash("error", "Problem finding players in database");
      console.log(err);
      res.render("error", { error: err });
    } else {
      let playersEasy = players.filter((obj) => {
        return obj.difficulty === "easy";
      });
      playersEasy.sort((a, b) => {
        return b.score - a.score;
      });
      let playersNormal = players.filter((obj) => {
        return obj.difficulty === "normal";
      });
      playersNormal.sort((a, b) => {
        return b.score - a.score;
      });
      let playersHard = players.filter((obj) => {
        return obj.difficulty === "hard";
      });
      playersHard.sort((a, b) => {
        return b.score - a.score;
      });
      res.render("scores", {
        playersEasy: playersEasy,
        playersNormal: playersNormal,
        playersHard: playersHard,
      });
    }
  });
});

// Catch all other routes
app.get("/*", function (req, res) {
  res.redirect("/");
});
const port = process.env.PORT || 80;

app.listen(port, function (err) {
  if (err) {
    console.log("Something went wrong.");
  } else {
    console.log("Server is running.");
  }
});