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app.js
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app.js
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const path = require("path");
const http = require("http");
const express = require("express");
const socketio = require("socket.io");
const cors = require("cors"); //make requests from one website to another website in the browser
const moment = require("moment");
const fileUpload = require('express-fileupload')
const indexRoutes= require("./routes/index")
const imageRoutes= require("./routes/image")
const app = express();
const server = http.createServer(app);
const io = socketio(server);
const compileSass = require('compile-sass');
const { sanitizeAndRenderMessage } = require("./utils/message");
const { formatMessage } = require("./models/message");
const { usersArr, newUser, currentUserData } = require("./utils/users");
const { roomMembersCount } = require("./utils/roomMembersCount");
// Json
app.use(express.json());
app.use(
express.urlencoded({
extended: true,
})
);
app.use(
"/css/:cssName",
compileSass.setup({
sassFilePath: path.join(__dirname, "public/scss/"),
sassFileExt: "scss",
embedSrcMapInProd: true,
resolveTildes: true,
nodeSassOptions: {
errLogToConsole: true,
noCache: true,
force: true,
},
})
);
app.use(fileUpload())
app.use(cors());
app.use(express.static(path.join(__dirname, "public")));
//routes
app.use("/", indexRoutes);
app.use("/", imageRoutes);
const roomDetails = io.of("/roomMembers");
roomDetails.on("connection", (socket) => {
roomDetails.emit("roomMembersCount", roomMembersCount);
});
io.on("connection", (socket) => {
//Validating user
//Connecting the user to the room
//Greeting message in the room user has joined
let { usrnm, room, profilePhoto } = currentUserData;
if (usrnm != undefined && room != undefined) {
roomMembersCount[room]++;
roomDetails.emit("countUpdate", {
room,
count: roomMembersCount[room],
});
newUser(usrnm, room, socket.id, profilePhoto);
socket.join(room);
socket.emit("roomJoined", {
room,
username: usrnm
});
}
socket.emit(
"message",
formatMessage("", "GeekChat Bot", "*Welcome to GeekChat!*", "")
);
socket
.to(room)
.emit(
"message",
formatMessage("", "GeekChat Bot", `**${usrnm}** entered the chat!`, "", profilePhoto)
);
let userList = usersArr.filter((ob) => ob.room === room);
socket.emit("userList", userList);
socket.to(room).emit("userJoined", {
id: socket.id,
username: usrnm,
profilePhoto:profilePhoto
});
//When a user leaves the room
//Disconnecting the user from the room
//Message in the room user has disconnected
socket.on("disconnect", () => {
roomMembersCount[room]--;
roomDetails.emit("countUpdate", {
room,
count: roomMembersCount[room],
});
io.in(room).emit("userLeft", {
id: socket.id,
username: usrnm,
});
let userIndex = -1, user;
for (const [index, userObj] of usersArr.entries()) {
if (userObj.session_id === socket.id) {
userIndex = index;
user = userObj;
break;
}
}
if (userIndex !== -1) {
usersArr.splice(userIndex, 1);
io.in(user.room).emit(
"message",
formatMessage("", "GeekChat Bot", `**${user.name}** disconnected.`, "", user.profilePhoto)
);
}
});
socket.on("chatMessage", (messageObject) => {
// When a user sends a chat message
// An id is created for the message
// Validating user and sending the message in the room
let user = usersArr.find((ob) => ob.session_id === socket.id);
let messageID = user.name + "_" + new Date().getTime();
if (user) {
io.in(user.room).emit(
"message",
formatMessage(
messageID,
user.name,
messageObject.msg,
messageObject.userID,
user.profilePhoto,
)
);
}
});
socket.on("deleteChatMsg", (msgId) => {
// When a user deletes a message
// Message id is verified
// Message is deleted
if (msgId == null || msgId == undefined) {
return;
}
let user = usersArr.find((ob) => ob.session_id === socket.id);
if (user) {
io.in(user.room).emit("deleteMsgFromChat", msgId);
}
});
//Event listner for typing
socket.on("typing", (info) => {
if (info.name !== undefined || info.name !== null) {
socket.broadcast.to(info.room).emit("typing", info.name);
}
});
//event listner for edit msg
socket.on("edited-msg", (info) => {
//find user
let user = usersArr.find((ob) => ob.session_id === socket.id);
//check user
if (user != null || user != undefined) {
if (info.text !== undefined || info.id !== undefined) {
info = { id: info.id, text: sanitizeAndRenderMessage(info.text, true), time: moment().valueOf() };
io.in(user.room).emit("edit-msg", info);
}
}
});
});
const port = process.env.PORT || 3000;
server.listen(port, () => console.log(`Server running on port ${port}`));