connection.js

const { createGame, checkCode, joinGame, guessWord, getCurrentScrambledWord, getScores, getGameResults, replayGame, deleteGame, updateWord } = require("./helpers/game");

module.exports = function(io) {
  let interval = null;
  io.on('connection', (socket) => {

    socket.on('createGame', host => {
      const gameId = createGame(socket.id, host);
      socket.join(gameId);
      socket.data.gameCode = gameId;
      socket.emit('gameCreated', gameId);
    });
    
    socket.on('checkCode', code => {
      const result = checkCode(code);
      socket.emit('checkCodeResult', result);
    });

    socket.on('joinGame', ({ playerName, gameCode }) => {
      const result = joinGame(socket.id, playerName, gameCode);
      if(result.success) {
        socket.data.gameCode = gameCode;
        socket.join(gameCode);
        io.to(gameCode).emit('gameReady', {host : result.game.hostName, playerTwo : result.game.playerTwoName });
        setTimeout(() => {
          io.to(gameCode).emit('gameStarted');
          io.to(gameCode).emit('adminMessage',`Game is live. Unscramble the first word.`);
          interval = setInterval(() => {
            updateWord(gameCode);
            io.to(gameCode).emit('newScrambledWord', getCurrentScrambledWord(gameCode) );
          }, 30 * 1000); //change word after 30 seconds if no player guesses it
          setTimeout(() => {
            io.to(gameCode).emit('gameEnded', getGameResults(gameCode));
            clearInterval(interval);
          }, 1000 * 60 * 3) //3 minutes
        }, 1000 * 5); //5 seconds
      } else {
        if(result.nameClash) {
          socket.emit('nameClash');
        } else {
          socket.emit('checkCodeResult', result);
        }
      }
    });

    socket.on('replay', gameCode  => {
      const startReplay = replayGame(gameCode, socket.id);
      if(startReplay) {
        io.to(gameCode).emit('gameReady', {host : startReplay.hostName, playerTwo : startReplay.playerTwoName });
        setTimeout(() => {
          io.to(gameCode).emit('gameStarted');
          io.to(gameCode).emit('adminMessage',`Game is live. Unscramble the first word.`);
          interval = setInterval(() => {
            updateWord(gameCode);
            io.to(gameCode).emit('newScrambledWord', getCurrentScrambledWord(gameCode) );
          }, 30 * 1000); //change word after 30 seconds if no player guesses it
          setTimeout(() => {
            io.to(gameCode).emit('gameEnded', getGameResults(gameCode));
            clearInterval(interval);
          }, 1000 * 60 * 3)
        }, 1000 * 5);
      }
    });

    socket.on('playerTry', ({ wordPick, gameCode, userName }) => {
      socket.broadcast.to(gameCode).emit('opponentTry', wordPick);
      const result = guessWord(wordPick, gameCode , socket.id);
      if(result) {
        io.to(gameCode).emit('adminMessage',`${wordPick} is correct. Great job ${userName}!✔`);
        io.to(gameCode).emit('newScrambledWord', getCurrentScrambledWord(gameCode) );
        if(interval){
          clearInterval(interval);
        }
        interval = setInterval(() => {
          updateWord(gameCode);
          io.to(gameCode).emit('newScrambledWord', getCurrentScrambledWord(gameCode) );
        }, 30 * 1000); //change word after 30 seconds if no player guesses it
        io.to(gameCode).emit('scoreUpdate', getScores(gameCode));
      } else {
        io.to(gameCode).emit('adminMessage' , `${wordPick} is wrong. Try again ${userName}❌`);
      }
    });

    socket.on('getScrambledWord', gameCode => {
      io.to(gameCode).emit('newScrambledWord', getCurrentScrambledWord(gameCode) );
    });

    socket.on('disconnect', () => {
      io.to(socket.data.gameCode).emit('playerDisconnected');
      io.to(socket.data.gameCode).emit('gameEnded', getGameResults(socket.data.gameCode));
      deleteGame(socket.data.gameCode);
      io.socketsLeave(socket.data.gameCode);
    })
  })
}