feat/1 Create rooms events

.gitignore

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+node_modules
+package-lock.json

app.js

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+const express = require('express');
+const path = require('path');
+const fs = require('fs');
+
+const app = express();
+app.set('port', process.env.PORT || 8888);
+const webSocket = require('./socket.js');
+
+// express 서버 litern
+const server = app.listen(app.get('port'), () => {
+    console.log(app.get('port'), '번 포트에서 대기중');
+})
+
+webSocket(server);

package.json

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+{
+  "name": "project1",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1",
+    "start": "node app.js"
+  },
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "cookie-parser": "^1.4.5",
+    "dotenv": "^10.0.0",
+    "express": "^4.17.1",
+    "express-session": "^1.17.2",
+    "morgan": "^1.10.0",
+    "nunjucks": "^3.2.3",
+    "socket.io": "^4.1.3"
+  }
+}

room/CreateID.js

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+data = require('./rooms');
+
+function Create(data) {
+    const id = 1
+    for (var i in data) {
+        if (id === i) {
+            id++;
+        }
+    }
+    data.push(id);
+}
+
+module.exports = Create;

room/Createroom.js

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+const CreateID = require('./CreateID.js');
+
+module.exports = class Room{
+    constructor(data){
+        this.Id = CreateID();
+        this.roomname = data.roomname;
+        this.password = data.password;
+        this.host = data.user;
+        if (this.password) {
+            this.isOpen = true;
+        } else {
+            this.isOpen = false;
+        }
+        this.max_users = data.max_users;
+        this.members = []
+    }
+
+    JoinRoom (data) {
+        // data 는 user 이름
+        this.members.append(data);
+    }
+
+    LeaveRoom (data) {
+        this.members.remove(data);
+    }
+
+    CountUsers() {
+        return this.members.length
+    }
+}

room/rooms.js

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+module.exports.rooms = [];

socket.js

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+const SocketIO = require('socket.io');
+const Room = require('./room/Createroom');
+const rooms = require('./room/rooms.js');
+
+module.exports = (server) => {
+    const io = SocketIO(server, {path: '/socket.io', transports: ['websocket']});
+
+    io.on('connection', (socket) => {
+        const req = socket.request;
+        const ip = req.headers['x-forwarded-for'] || req.connection.remoteAddress;
+        console.log( ip + '의 새로운 유저가 접속하였습니다.');
+
+        socket.on('createRoom', function(data) {
+            console.log("CreateRoom Event");
+            room = new Room(data);
+
+            socket.join('room:' + room.roomId);
+            room.host = data.name;
+            if (data.password == null) {
+                room.isOpen = true;
+            } else {
+                room.isOpen = false;
+                room.password = data.password;
+            }
+            room.max_user = data.max_user;
+            room.members.push(data.name);
+            rooms.push(room);
+        });
+
+        socket.on('JoinRoom', function(data) {
+            console.log("JoinRoom Event");
+            if (!rooms.room.data.roomId) {
+                console.log("방이 존재하지 않습니다.");
+                socket.emit("Fail", { command : 'not existed'});
+            } else {
+                const currentRoom = rooms.room.data.roomIds;
+                if (!currentRoom.isOpen && currentRoom.password !== data.password) {
+                    console.log("비밀번호가 틀렸습니다.")
+                    socket.emit("again");
+                    // 다시 화면으로
+                } else if (currentRoom.max_user < data.max_user) {
+                    console.log("방에 인원이 다 차있습니다.");
+                    socket.emit("Fail");
+                } else {
+                    socket.join('room:' + data.roomId);
+                }
+            }
+        });
+        socket.on('Update', function(data) {
+            const currentRoom = rooms.room.data.roomId;
+            currentRoom.name = data.roomName;
+            currentRoom.password = data.password;
+            currentRoom.host = data.name;
+            currentRoom.max_user = data.max_user;
+        });
+
+        socket.on('DeleteRoom', function(data) {
+            // 방소유주가 아닐 경우
+            if (rooms.room.data.roomId) { 
+                // 방이 만들어지지 않은 경우
+                console.log('방이 만들어져있지 않습니다.')
+            } else {
+                const currentRoom = rooms.room.data.roomId;
+
+                if (currentRoom.host == data.name) {
+                    socket.leave(currentRoom);
+                    rooms.remove(room.roomId);
+                    socket.broadcast.to(currentRoom).emit("Delete", { message :
+                    '방이 삭제되었습니다.' }); // 본인제외 방없어진 메시지 보내기
+                } else {
+                    console.log("권한이 없습니다.");
+                    socket.emit("Fail_delete",); // event 수정
+                }
+            }
+        });
+
+        socket.on('LeaveRoom', function(data) {
+            const currentRoom = rooms.room.data.roomId;
+            if (currentRoom.host == data.name) {
+                const randomNum = Math.random() * currentRoom.length();
+                currentRoom.host = currentRoom.members[Math.floor(randomNum)];
+                currentRoom.members.remove(data.name);
+                socket.leave(currentRoom);
+            } else if (currentRoom.host == data.name && currentRoom.members.length == 1){
+                socket.leave(currentRoom);
+                rooms.remove(room.roomId);
+            } else {
+                currentRoom.members.remove(data.name);
+                socket.leave(currentRoom);
+            }
+        });
+    });
+};