cardGame/server.js

const express = require('express');

const database = require('./database');
const rooms = require('./rooms');
const gameMod = require('./gameMod');

const app = express();
const http = require('http').Server(app);
const port = process.env.PORT || 3000;
const io = require('socket.io')(http);
global.io = io;

// To log the player sockets, so they can be easily referred to
// maybe jank, but can't see alternative currently
global.playerSocket	= {};
global.roomData		= {}; // Made global for now, as to not replicate. Maybe sub-optimal?


// util is what nodejs uses for console.log, but has a depth of 2 set
// so console.logs show [Array]/[Object] instead of useful info.
// This can be overridden console.log(util.inspect(LOGDATA, true, 4, true))
// 4 being new depth, true (last one) is to show colours
const util = require('util')

app.use(express.static(__dirname + '/public'));

http.listen(port, () => console.log('listening on port ' + port));
database.connect();

io.on('connection', onConnection);

function onConnection(socket){

	console.log('+ User connected');
	console.log('');

	// Rooms (joining, creating, etc)
	socket.on('requestRooms', function(filter) {
		rooms.requestRooms(socket, filter);
	});

	socket.on('requestJoinRoom', function(playerName, roomId) {
		rooms.requestJoinRoom(socket, playerName, roomId);
	});

	socket.on('requestCreateRoom', function(playerName) {
		rooms.requestCreateRoom(socket, playerName);
	});

	// Game (actual things relating to the game)
	// The socket should only be in one game, so socket.on should
	// do this, but passing room/player anyways as it's how I've written some
	// roomData bits. TODO: Look if I can do this better...
	socket.on('passTurn', function(roomId, playerId) {
		gameMod.passTurn(roomId, playerId);	
	});

	socket.on('drawACard', function(roomId, playerId) {
		gameMod.drawACard(roomId, playerId);	
	});

	socket.on('shuffleDeck', function(roomId, playerId) {
		gameMod.shuffleDeck(roomId, playerId);	
	});

	socket.on('playFromHand', function(roomId, playerId, listPosition) {
		gameMod.playFromHand(roomId, playerId, listPosition);
	});
	
	socket.on('requestResolveStack', function(roomId, playerId) {
		gameMod.acceptResolveStack(roomId, playerId);
		console.log('resolve stack yep yep yep');
	});

}

global.getPlayerSocketFromRoom = function(playerId, roomId){

	return roomData[roomId].playerData[playerId].socketId;

}

global.sendToEachSocket = function(roomId, responseName, data){

	console.log(responseName);

	let clients = global.io.sockets.adapter.rooms.get(roomId);
	for (const clientId of clients) {

		const clientSocket = global.io.sockets.sockets.get(clientId);
		// Send to a client socket
		global.io.to(clientSocket.id).emit(responseName, data);

	}

}

// Globals for easier clientside alerts/logs, etc.
global.socketAlert = function(socket, message, type = 'alert'){
	global.io.to(socket).emit(
		type, {'message': message}
	);
}

// passTurn response for all clients in room
// TODO: include spectators when added
global.socketResponsePassTurn = function(roomId){

	let data = {
		'playerTurn': global.roomData[roomId].itemData.component.playerTurn,
		'turn': global.roomData[roomId].itemData.component.turn,
	};

	global.sendToEachSocket(roomId, 'responsePassTurn', data);

}

// Then emit the deckSize and hand size to all the player's sockets
// TODO: spectators in future, won't comment about this from now on
global.socketResponseDrawCard = function(roomId, playerId){

	console.log('>> '+roomData[roomId].playerData[playerId].playerId+' drew card');

	global.socketReturnCardCounts(roomId, 'responseDrawCard');

}

global.socketReturnCardCounts = function(roomId, responseName = 'responseCardCounts'){

	let data = global.roomData[roomId].itemData.component.cardCount;

	global.sendToEachSocket(roomId, responseName, data);

}

global.socketResponsePlayerDrewCard = function(roomId, playerId){

	global.socketResponsePlayerHandData(roomId, playerId);

}

global.socketResponsePlayerHandData = function(roomId, playerId){

	// This function may be redundant fast, as hand, board, grave, void
	// anywhere that's visible to one (or both) players will need all the data
	// sending, so will likely be one function that returns it all?
	// Could do each thing as their own, and union the data too?
	global.io.to(global.getPlayerSocketFromRoom(playerId, roomId)).emit(
		'responsePlayerDrewCard'
		,gameMod.getPlayerHandData(roomId, playerId)
	);

}

global.socketResponseShuffleDeck = function(roomId, playerId, hasShuffled){
	
	global.io.to(global.getPlayerSocketFromRoom(playerId, roomId)).emit(
		'responseShuffleDeck'
		,[playerId, hasShuffled]
	);

}

global.socketResponseUpdateBoard = function(roomId){

	// TODO: Only return the data that's needed, no everything
	let data = global.roomData[roomId].itemData.component;
	// Return the data on the board (to both players)
	// TODO: If card flips/face-downs are to be a thing, only return the cardData, etc.
	// to the player who's side it's on
	global.sendToEachSocket(roomId, 'responseUpdateBoard', data);

}

global.socketResponsePlayFromHand = function(roomId, playerId, cardId){
	
	console.log('>> '+roomData[roomId].playerData[playerId].playerId+' played from hand');

	// Return the new cardCounts for hand/deck/grave, etc.
	global.socketReturnCardCounts(roomId);

	// Update hand of player that card's hand was played from (using existing logic)
	global.socketResponsePlayerHandData(roomId, playerId);

	// Update the board (for both players)
	global.socketResponseUpdateBoard(roomId);

	// So the animations can be played with the new cardData (in future)
	global.sendToEachSocket(roomId, 'responsePlayFromHand', cardId);
}

// Stack
global.socketResponseAddToStack = function(roomId){
	global.sendToEachSocket(roomId, 'responseAddToStack', 'testData');
}
global.socketResponseResolveStack = function(roomId){
	global.sendToEachSocket(roomId, 'responseResolveStack', 'testData');
}

// TODO: Each player one at a time to prevent just self-chaining 24/7
global.socketGetStackResponse = function(roomId){
	// TODO: Return all valid effect triggers/responses to the effect trigger
	// on the top of the stack, and a 'resolve' option to not trigger anything
	global.sendToEachSocket(roomId, 'responseGetStackResponse', 'testData');
}