Back- and frontend improvements

- added graphql backend
- added mobile support for frontend
- improved username form
- improved access to html-elements
- added toggle to bingo fields

.gitignore

@@ -1,5 +1,4 @@
 package-lock
-bin
 .idea
 node_modules
 scripts/*

app.js

@@ -7,6 +7,9 @@ const createError = require('http-errors'),
       session = require('express-session'),
       fsx = require('fs-extra'),
       yaml = require('js-yaml'),
+      graphqlHTTP = require('express-graphql'),
+      { buildSchema } = require('graphql'),
+      { importSchema } = require('graphql-import'),
 
   indexRouter = require('./routes/index'),
   usersRouter = require('./routes/users'),
@@ -18,6 +21,12 @@ let settings = yaml.safeLoad(fsx.readFileSync('default-config.yaml'));
 if (fsx.existsSync('config.yaml'))
   Object.assign(settings, yaml.safeLoad(fsx.readFileSync('config.yaml')));
 
+let graphqlResolver = (request) => {
+  return {
+      time: Date.now(),
+      bingo:  bingoRouter.graphqlResolver(request)
+  }
+};
 let app = express();
 
 // view engine setup
@@ -33,7 +42,9 @@ app.use(session({
   secret: settings.sessions.secret,
   resave: false,
   saveUninitialized: true,
-  cookie: { maxAge: settings.sessions.maxAge }
+  cookie: {
+    expires: 10000000
+  }
 }));
 app.use('/sass', compileSass({
   root: './public/stylesheets/sass',
@@ -46,7 +57,15 @@ app.use(express.static(path.join(__dirname, 'public')));
 app.use('/', indexRouter);
 app.use('/users', usersRouter);
 app.use(/\/riddle(\/.*)?/, riddleRouter);
-app.use(/\/bingo?.*/, bingoRouter);
+app.use('/bingo', bingoRouter);
+app.use('/graphql', graphqlHTTP(request => {
+  return {
+    schema: buildSchema(importSchema('./graphql/schema.graphql')),
+    rootValue: graphqlResolver(request),
+    context: {session: request.session},
+    graphiql: true
+  };
+}));
 
 // catch 404 and forward to error handler
 app.use(function(req, res, next) {
@@ -64,4 +83,6 @@ app.use(function(err, req, res, next) {
   res.render('error');
 });
 
-app.listen(settings.port);
+module.exports = app;
+
+//app.listen(settings.port);

bin/www

@@ -0,0 +1,90 @@
+#!/usr/bin/env node
+
+/**
+ * Module dependencies.
+ */
+
+var app = require('../app');
+var debug = require('debug')('whooshy:server');
+var http = require('http');
+
+/**
+ * Get port from environment and store in Express.
+ */
+
+var port = normalizePort(process.env.PORT || '3000');
+app.set('port', port);
+
+/**
+ * Create HTTP server.
+ */
+
+var server = http.createServer(app);
+
+/**
+ * Listen on provided port, on all network interfaces.
+ */
+
+server.listen(port);
+server.on('error', onError);
+server.on('listening', onListening);
+
+/**
+ * Normalize a port into a number, string, or false.
+ */
+
+function normalizePort(val) {
+  var port = parseInt(val, 10);
+
+  if (isNaN(port)) {
+    // named pipe
+    return val;
+  }
+
+  if (port >= 0) {
+    // port number
+    return port;
+  }
+
+  return false;
+}
+
+/**
+ * Event listener for HTTP server "error" event.
+ */
+
+function onError(error) {
+  if (error.syscall !== 'listen') {
+    throw error;
+  }
+
+  var bind = typeof port === 'string'
+    ? 'Pipe ' + port
+    : 'Port ' + port;
+
+  // handle specific listen errors with friendly messages
+  switch (error.code) {
+    case 'EACCES':
+      console.error(bind + ' requires elevated privileges');
+      process.exit(1);
+      break;
+    case 'EADDRINUSE':
+      console.error(bind + ' is already in use');
+      process.exit(1);
+      break;
+    default:
+      throw error;
+  }
+}
+
+/**
+ * Event listener for HTTP server "listening" event.
+ */
+
+function onListening() {
+  var addr = server.address();
+  var bind = typeof addr === 'string'
+    ? 'pipe ' + addr
+    : 'port ' + addr.port;
+  debug('Listening on ' + bind);
+}

graphql/bingo.graphql

@@ -0,0 +1,82 @@
+type BingoMutation {
+
+    # creates a game of bingo and returns the game id
+    createGame(words: [String!]!, size: Int = 3): BingoGame
+
+    # submit a bingo to the active game session
+    submitBingo: Boolean
+
+    # toggle a word (heared or not) on the sessions grid
+    toggleWord(word: String, base64Word: String): BingoGrid
+
+    # set the username of the current session
+    setUsername(username: String!): BingoUser
+}
+
+type BingoQuery {
+
+    # Returns the currently active bingo game
+    gameInfo(id: ID): BingoGame
+
+    # If there is a bingo in the fields.
+    checkBingo: Boolean
+
+    # Returns the grid of the active bingo game
+    activeGrid: BingoGrid
+}
+
+type BingoGame {
+
+    # the id of the bingo game
+    id: ID!
+
+    # the words used in the bingo game
+    words: [String]!
+
+    # the size of the square-grid
+    gridSize: Int
+
+    # an array of players active in the bingo game
+    players(id: ID): [BingoUser]
+
+    # the player-ids that scored a bingo
+    bingos: [String]!
+
+    # if the game has already finished
+    finished: Boolean
+}
+
+type BingoUser {
+
+    # the id of the bingo user
+    id: ID!
+
+    # the id of the currently active bingo game
+    game: ID
+
+    # the name of the user
+    username: String
+}
+
+type BingoGrid {
+
+    # the grid represented as string matrix
+    wordGrid: [[String]]!
+
+    # the grid represented as bingo field matrix
+    fieldGrid: [[BingoField]]!
+
+    # if there is a bingo
+    bingo: Boolean
+}
+
+type BingoField {
+
+    # the word contained in the bingo field
+    word: String
+
+    # if the word was already heared
+    submitted: Boolean!
+
+    base64Word: String
+}

graphql/schema.graphql

@@ -0,0 +1,11 @@
+# import BingoMutation from 'bingo.graphql'
+# import BingoQuery from 'bingo.graphql'
+
+type Query {
+    time: String
+    bingo: BingoQuery
+}
+
+type Mutation {
+    bingo: BingoMutation
+}

package.json

@@ -9,12 +9,16 @@
     "cookie-parser": "~1.4.4",
     "debug": "~2.6.9",
     "express": "~4.16.1",
+    "express-compile-sass": "latest",
+    "express-graphql": "^0.8.0",
+    "express-session": "latest",
     "fs-extra": "^7.0.1",
+    "graphql": "^14.3.0",
+    "graphql-import": "^0.7.1",
     "http-errors": "~1.6.3",
+    "js-yaml": "latest",
     "morgan": "~1.9.1",
-    "pug": "2.0.0-beta11",
+    "node-sass": "^4.12.0",
-    "express-compile-sass": "latest",
+    "pug": "2.0.0-beta11"
-    "express-session": "latest",
-    "js-yaml": "latest"
   }
 }

public/javascripts/bingo-web.js

@@ -14,10 +14,15 @@ async function submitBingoWords() {
 }
 
 async function submitUsername() {
-    let username = document.querySelector('#username-input').value;
+    let unameInput = document.querySelector('#username-input');
+    let username = unameInput.value;
     let response = await postLocData({
         username: username
     });
+    unameInput.value = '';
+    unameInput.placeholder = username;
+    document.querySelector('#username-form').remove();
+    document.querySelector('.greyover').remove();
 
     console.log(response);
 }
@@ -31,12 +36,15 @@ async function submitWord(word) {
     let data = JSON.parse(response.data);
     for (let row of data.fieldGrid) {
         for (let field of row) {
-            document.querySelector(`.bingo-word-panel[b-word="${field.word}"]`)
+            document.querySelectorAll(`.bingo-word-panel[b-word="${field.base64Word}"]`).forEach(x => {
-                .setAttribute('b-sub', field.submitted);
+                x.setAttribute('b-sub', field.submitted);
+            });
         }
     }
     if (data.bingo) {
         document.querySelector('#bingo-button').setAttribute('class', '');
+    } else {
+        document.querySelector('#bingo-button').setAttribute('class', 'hidden');
     }
 }
 

public/stylesheets/sass/bingo/style.sass

@@ -9,14 +9,43 @@ textarea
   display: block
   margin: 1rem
   border-radius: 0
-  height: 50%
+  font-size: 0.8em
+
+@media(max-device-width: 641px)
+  textarea
+    height: 80%
+    width: calc(100% - 2rem)
+  #words-container
+    width: 100%
+    height: 80%
+
+@media(min-device-width: 641px)
+  textarea
+    height: 80%
     width: 50%
-  font-size: 15pt
+  #words-container
+    width: 100%
+    height: 88%
 
 .number-input
   width: 4rem
   margin: 1rem
 
+#bingoheader
+  display: table
+  width: 100%
+
+  div
+    display: table-cell
+    text-align: start
+
+  .stretchDiv
+    text-align: end
+
+  button
+    max-width: calc(100% - 2rem)
+    padding: 0.7rem 2rem
+
 #words-container
   display: table
 
@@ -26,9 +55,18 @@ textarea
     .bingo-word-panel
       @include default-element
       display: table-cell
-      padding: 3rem
+      padding: 1rem
       transition-duration: 0.3s
       max-width: 15rem
+      border-radius: 0
+      border-collapse: collapse
+      text-align: center
+      vertical-align: middle
+
+      span
+        vertical-align: middle
+        display: inline-block
+        word-break: break-word
 
     .bingo-word-panel:hover
       background-color: darken($primary, 2%)
@@ -40,6 +78,32 @@ textarea
     .bingo-word-panel[b-sub="true"]
       background-color: forestgreen
 
+#bingo-button
+  transition-duration: 0.8s
+
+#username-form
+  @include default-element
+  position: fixed
+  display: block
+  height: calc(50% - 1rem)
+  width: calc(40% - 1rem)
+  top: 25%
+  left: 30%
+  text-align: center
+  vertical-align: middle
+  padding: 1rem
+  z-index: 1000
+
+  button
+    cursor: pointer
+
+  input[type='text']
+    cursor: text
+
+#username-form *
+  display: inline-block
+  vertical-align: middle
+
 .popup
   @include default-element
   height: 5%

public/stylesheets/sass/mixins.sass

@@ -5,3 +5,4 @@
   color: $primarySurface
   border: 2px solid $primarySurface
   border-radius: $borderRadius
+  transition-duration: 0.2s

public/stylesheets/sass/style.sass

@@ -2,16 +2,39 @@
 @import classes
 @import mixins
 
+@media (min-device-width: 320px)
+  html
+    font-size: 4.5vw
+
+@media (min-device-width: 481px)
+  html
+    font-size: 4vw
+
+@media (min-device-width: 641px)
+  html
+    font-size: 4vw
+
+@media (min-device-width: 961px)
+  html
+    font-size: 3vw
+
+@media (min-device-width: 1025px)
+  html
+    font-size: 2vw
+
+@media (min-device-width: 1281px)
+  html
+    font-size: 1.5vw
+
 body
   background-color: $primary
   color: $primarySurface
-  font-size: 18pt
   font-family: Arial, sans-serif
 
 button
   @include default-element
-  font-size: 20pt
+  font-size: 1.2rem
-  padding: 10px
+  padding: 0.7rem
   transition-duration: 0.2s
 
 button:hover
@@ -23,6 +46,6 @@ button:active
 
 input
   @include default-element
-  font-size: 20pt
+  font-size: 1.2rem
   background-color: lighten($primary, 10%)
-  padding: 9px
+  padding: 0.7rem

routes/bingo.js

@@ -30,29 +30,55 @@ class BingoSession {
         let id = user.id;
         this.users[id] = user;
     }
+
+    /**
+     * Graphql endpoint
+     * @param args {Object} - the arguments passed on the graphql interface
+     * @returns {any[]|*}
+     */
+    players(args) {
+        if (args.id)
+            return [this.users[args.id]];
+        else
+            return Object.values(this.users);
+    }
 }
 
 class BingoUser {
+    /**
+     * Bingo User class to store user information
+     */
     constructor() {
         this.id = generateBingoId();
         this.game = null;
         this.username = 'anonymous';
         this.grids = {};
-        this.submittedWords = {};
     }
 }
 
 class BingoWordField {
+    /**
+     * Represents a single bingo field with the word an the status.
+     * It also holds the base64-encoded word.
+     * @param word
+     */
     constructor(word) {
         this.word = word;
+        this.base64Word = Buffer.from(word).toString('base64');
         this.submitted = false;
     }
 }
 
 class BingoGrid {
+    /**
+     * Represents the bingo grid containing all the words.
+     * @param wordGrid
+     * @returns {BingoGrid}
+     */
     constructor(wordGrid) {
         this.wordGrid = wordGrid;
         this.fieldGrid = wordGrid.map(x => x.map(y => new BingoWordField(y)));
+        this.bingo = false;
         return this;
     }
 }
@@ -74,6 +100,20 @@ function shuffleArray(array) {
     return array;
 }
 
+/**
+ * Inflates an array to a minimum Size
+ * @param array {Array} - the array to inflate
+ * @param minSize {Number} - the minimum size that the array needs to have
+ * @returns {Array}
+ */
+function inflateArray(array, minSize) {
+    let resultArray = array;
+    let iterations = Math.ceil(minSize/array.length);
+    for (let i = 0; i < iterations; i++)
+        resultArray = [...resultArray, ...resultArray];
+    return resultArray
+}
+
 /**
  * Generates an id for a subreddit download.
  * @returns {string}
@@ -89,7 +129,7 @@ function generateBingoId() {
  * @returns {BingoGrid}
  */
 function generateWordGrid(dimensions, words) {
-    let shuffledWords = shuffleArray(words);
+    let shuffledWords = shuffleArray(inflateArray(words, dimensions[0]*dimensions[1]));
     let grid = [];
     for (let x = 0; x < dimensions[1]; x++) {
         grid[x] = [];
@@ -102,19 +142,17 @@ function generateWordGrid(dimensions, words) {
 
 /**
  * Sets the submitted parameter of the words in the bingo grid that match to true.
- * @param word {String}
+ * @param base64Word {String} - base64 encoded bingo word
- * @param bingoGrid {BingoGrid}
+ * @param bingoGrid {BingoGrid} - the grid where the words are stored
  * @returns {boolean}
  */
-function submitWord(word, bingoGrid) {
+function toggleHeared(base64Word, bingoGrid) {
-    let results = bingoGrid.fieldGrid.find(x => x.find(y => (y.word === word))).find(x => x.word === word);
+    for (let row of bingoGrid.fieldGrid)
-
+        for (let field of row)
-    if (results) {
+            if (base64Word === field.base64Word)
-        (results instanceof Array)? results.forEach(x => {x.submitted = true}): results.submitted = true;
+                field.submitted = !field.submitted;
     checkBingo(bingoGrid);
     return true;
-    }
-    return false;
 }
 
 /**
@@ -146,8 +184,10 @@ function checkBingo(bingoGrid) {
         bingoCheck = true;
         for (let field of row)
             bingoCheck = field && bingoCheck;
-        if (bingoCheck)
+        if (bingoCheck) {
-            break;
+            bingoGrid.bingo = true;
+            return true;
+        }
     }
     if (bingoCheck) {
         bingoGrid.bingo = true;
@@ -159,13 +199,16 @@ function checkBingo(bingoGrid) {
         bingoCheck = true;
         for (let j = 0; j < fg.length; j++)
             bingoCheck = fg[j][i] && bingoCheck;
-        if (bingoCheck)
+        if (bingoCheck) {
-            break;
+            bingoGrid.bingo = true;
+            return true;
+        }
     }
     if (bingoCheck) {
         bingoGrid.bingo = true;
         return true;
     }
+    bingoGrid.bingo = false;
     return false;
 }
 
@@ -191,7 +234,7 @@ router.get('/', (req, res) => {
             if (!bingoUser.grids[gameId]) {
                 bingoUser.grids[gameId] = generateWordGrid([bingoSession.gridSize, bingoSession.gridSize], bingoSession.words);
             }
-            res.render('bingo/bingo-game', {grid: bingoUser.grids[gameId].wordGrid, username: bingoUser.username});
+            res.render('bingo/bingo-game', {grid: bingoUser.grids[gameId].fieldGrid, username: bingoUser.username});
         } else {
             res.render('bingo/bingo-submit');
         }
@@ -226,12 +269,9 @@ router.post('/', (req, res) => {
     } else if (data.game) {
         res.send(bingoSessions[data.game]);
     } else if (data.bingoWord) {
-        if (!bingoUser.submittedWords[gameId])
-            bingoUser.submittedWords[gameId] = [];
-        bingoUser.submittedWords[gameId].push(data.bingoWord);
         console.log(typeof bingoUser.grids[gameId]);
         if (bingoUser.grids[gameId])
-            submitWord(data.bingoWord, bingoUser.grids[gameId]);
+            toggleHeared(data.bingoWord, bingoUser.grids[gameId]);
         res.send(bingoUser.grids[gameId]);
     } else if (data.bingo) {
         if (checkBingo(bingoUser.grids[gameId])) {
@@ -239,7 +279,7 @@ router.post('/', (req, res) => {
                 bingoSession.bingos.push(bingoUser.id);
             bingoSession.finished = true;
             setTimeout(() => { // delete the finished game after five minutes
-                delete bingoSessions[game.id];
+                delete bingoSessions[gameId];
             }, 360000);
             res.send(bingoSession);
         } else {
@@ -256,4 +296,68 @@ router.post('/', (req, res) => {
     }
 });
 
+router.graphqlResolver = (req) => {
+    let bingoUser = req.session.bingoUser || new BingoUser();
+    let gameId = req.query.game || bingoUser.game || null;
+    let bingoSession = bingoSessions[gameId];
+    return {
+        // queries
+        gameInfo: (args) => {
+            if (args.id)
+                return bingoSessions[args.id];
+            else
+                return bingoSession;
+        },
+        checkBingo: (args) => {
+            return checkBingo(bingoUser.grids[gameId])
+        },
+        activeGrid: (args) => {
+            return bingoUser.grids[gameId];
+        },
+        // mutation
+        createGame: (args) => {
+            let words = args.words;
+            let size = args.size;
+            let game = new BingoSession(words, size);
+
+            bingoSessions[game.id] = game;
+
+            setTimeout(() => { // delete the game after one day
+                delete bingoSessions[game.id];
+            }, 86400000);
+
+            return game;
+        },
+        submitBingo: (args) => {
+            if (checkBingo(bingoUser.grids[gameId])) {
+                if (!bingoSession.bingos.includes(bingoUser.id))
+                    bingoSession.bingos.push(bingoUser.id);
+                bingoSession.finished = true;
+                setTimeout(() => { // delete the finished game after five minutes
+                    delete bingoSessions[gameId];
+                }, 360000);
+                return true;
+            } else {
+                return false;
+            }
+        },
+        toggleWord: (args) => {
+            if (args.word || args.base64Word) {
+                args.base64Word = args.base64Word || Buffer.from(args.word).toString('base-64');
+                if (bingoUser.grids[gameId])
+                    toggleHeared(args.base64Word, bingoUser.grids[gameId]);
+                return bingoUser.grids[gameId];
+            }
+        },
+        setUsername: (args) => {
+            if (args.username) {
+                bingoUser.username = args.username;
+                bingoSession.addUser(bingoUser);
+
+                return bingoUser;
+            }
+        }
+    };
+};
+
 module.exports = router;

views/bingo/bingo-game.pug

@@ -1,13 +1,15 @@
 include bingo-layout
 
 block content
+    if username === 'anonymous'
+        div(class='greyover')
         div(id='username-form')
-        input(type='text', id='username-input', placeholder='username', value=username)
+            input(type='text', id='username-input', placeholder=username)
             button(onclick='submitUsername()') Set Username
-        button(id='bingo-button' onclick='submitBingo()', class='hidden') Bingo!
     div(id='words-container')
         each val in grid
             div(class='bingo-word-row')
-                each word in val
+                each field in val
-                    div(class='bingo-word-panel', onclick=`submitWord('${word}')`, b-word=word, b-sub='false')
+                    div(class='bingo-word-panel', onclick=`submitWord('${field.base64Word}')`, b-word=field.base64Word, b-sub='false')
-                        span= word
+                        span= field.word
+    button(id='bingo-button' onclick='submitBingo()', class='hidden') Bingo!

views/bingo/bingo-layout.pug

@@ -3,6 +3,5 @@ html
         include ../includes/head
         script(type='text/javascript', src='/javascripts/bingo-web.js')
         link(rel='stylesheet', href='/sass/bingo/style.sass')
-
     body
         block content

views/bingo/bingo-submit.pug

@@ -2,8 +2,11 @@ extends  bingo-layout
 
 block content
     div(id='bingoform')
+        div(id='bingoheader')
+            div
                 input(type='number', id='bingo-grid-size', class='number-input', value=3, min=1, max=8)
                 span x
                 span(id='bingo-grid-y', class='number-input') 3
+            div(class='stretchDiv')
                 button(onclick='submitBingoWords()') Submit
         textarea(id='bingo-textarea', placeholder='Bingo Words')