This commit is contained in:
Gal Podlipnik 2025-06-12 01:23:08 +02:00
parent c93d9f872c
commit 99cbd6e310
62 changed files with 11357 additions and 0 deletions

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backend/.gitignore vendored Normal file
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node_modules
.env
/generated/prisma
/generated/prisma

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dist

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{
"printWidth": 150
}

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{
"recommendations": ["dbaeumer.vscode-eslint", "esbenp.prettier-vscode", "ms-vscode.vscode-typescript-next"]
}

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{
"editor.codeActionsOnSave": {
"source.fixAll.eslint": true,
"source.organizeImports": true
},
"editor.formatOnSave": true,
"eslint.validate": ["javascript", "typescript", "typescriptreact"],
"eslint.alwaysShowStatus": true,
"editor.defaultFormatter": "esbenp.prettier-vscode"
}

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"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.disconnectDatabase = exports.connectDatabase = exports.prisma = void 0;
const client_1 = require("@prisma/client");
exports.prisma = new client_1.PrismaClient({
log: ["query", "info", "warn", "error"],
});
const connectDatabase = async () => {
try {
await exports.prisma.$connect();
console.log("✅ Database connected successfully");
}
catch (error) {
console.error("❌ Database connection failed:", error);
process.exit(1);
}
};
exports.connectDatabase = connectDatabase;
const disconnectDatabase = async () => {
await exports.prisma.$disconnect();
};
exports.disconnectDatabase = disconnectDatabase;

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"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.env = void 0;
const zod_1 = require("zod");
const envSchema = zod_1.z.object({
CORS_ORIGIN: zod_1.z.string().default("*"),
DATABASE_URL: zod_1.z.string(),
JWT_SECRET: zod_1.z.string(),
NODE_ENV: zod_1.z.enum(["development", "production", "test"]).default("development"),
PORT: zod_1.z.string().transform(Number).default("3000"),
});
exports.env = envSchema.parse(process.env);

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"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.AuthController = void 0;
const authService_js_1 = require("../services/authService.js");
class AuthController {
static async register(req, res) {
const data = req.body;
const result = await authService_js_1.AuthService.register(data);
res.status(result.success ? 201 : 400).json(result);
}
static async login(req, res) {
const data = req.body;
const result = await authService_js_1.AuthService.login(data);
res.status(result.success ? 200 : 400).json(result);
}
}
exports.AuthController = AuthController;

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"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.ChatController = void 0;
const chatService_js_1 = require("../services/chatService.js");
class ChatController {
static async getChatRooms(req, res) {
if (!req.user) {
res.status(401).json({ success: false, error: "Unauthorized" });
return;
}
const result = await chatService_js_1.ChatService.getChatRooms(req.user.userId);
res.status(result.success ? 200 : 500).json(result);
}
static async createChatRoom(req, res) {
if (!req.user) {
res.status(401).json({ success: false, error: "Unauthorized" });
return;
}
const data = req.body;
const result = await chatService_js_1.ChatService.createChatRoom(req.user.userId, data);
res.status(result.success ? 201 : 500).json(result);
}
static async getMessages(req, res) {
if (!req.user) {
res.status(401).json({ success: false, error: "Unauthorized" });
return;
}
const query = {
roomId: req.params.roomId,
page: req.query.page,
limit: req.query.limit,
};
const result = await chatService_js_1.ChatService.getMessages(query);
res.status(result.success ? 200 : 500).json(result);
}
}
exports.ChatController = ChatController;

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"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const cors_1 = __importDefault(require("cors"));
const express_1 = __importDefault(require("express"));
const http_1 = __importDefault(require("http"));
const socket_io_1 = require("socket.io");
const database_js_1 = require("./config/database.js");
const env_js_1 = require("./config/env.js");
const auth_js_1 = require("./middleware/auth.js");
const socketHandlers_js_1 = require("./socket/socketHandlers.js");
const app = (0, express_1.default)();
const server = http_1.default.createServer(app);
const io = new socket_io_1.Server(server, {
cors: {
methods: ["GET", "POST"],
origin: "http://localhost:5173",
},
});
app.use((0, cors_1.default)({
methods: ["GET", "POST"],
origin: "http://localhost:5173",
}));
app.use(express_1.default.json());
app.get("/health", (_, res) => {
res.json({ status: "OK", timestamp: new Date().toISOString() });
});
io.use(auth_js_1.authenticateSocket);
io.on("connection", async (socket) => {
await (0, socketHandlers_js_1.handleConnection)(io, socket);
});
app.use((err, _, res) => {
console.error("Unhandled error:", err);
res.status(500).json({
success: false,
error: env_js_1.env.NODE_ENV === "production" ? "Internal server error" : err.message,
});
});
const startServer = async () => {
try {
await (0, database_js_1.connectDatabase)();
server.listen(env_js_1.env.PORT, () => {
console.log(`🚀 Server running on port ${env_js_1.env.PORT}`);
console.log(`📊 Environment: ${env_js_1.env.NODE_ENV}`);
console.log(`🔗 CORS Origin: ${env_js_1.env.CORS_ORIGIN}`);
});
}
catch (error) {
console.error("Failed to start server:", error);
process.exit(1);
}
};
process.on("SIGTERM", () => {
console.log("SIGTERM received, shutting down gracefully...");
server.close(() => {
console.log("HTTP server closed");
process.exit(0);
});
});
(async () => {
await startServer();
})();

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"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.authenticateSocket = exports.authenticateToken = void 0;
const jsonwebtoken_1 = __importDefault(require("jsonwebtoken"));
const database_js_1 = require("../config/database.js");
const env_js_1 = require("../config/env.js");
const authenticateToken = (req, res, next) => {
try {
const authHeader = req.headers.authorization;
const token = authHeader?.split(" ")[1];
if (!token) {
res.status(401).json({ success: false, error: "Access token required" });
return;
}
const decoded = jsonwebtoken_1.default.verify(token, env_js_1.env.JWT_SECRET);
req.user = decoded;
next();
}
catch (error) {
console.error("Authentication error:", error);
res.status(403).json({ success: false, error: "Invalid or expired token" });
}
};
exports.authenticateToken = authenticateToken;
const authenticateSocket = async (socket, next) => {
try {
const token = socket.handshake.auth.token;
if (!token) {
return next(new Error("Authentication token required"));
}
const decoded = jsonwebtoken_1.default.verify(token, env_js_1.env.JWT_SECRET);
const user = await database_js_1.prisma.user.findUnique({
where: {
id: decoded.userId,
},
});
if (!user)
return next(new Error("User not found"));
const authenticateSocket = socket;
authenticateSocket.userId = user.id;
authenticateSocket.user = user;
next();
}
catch (error) {
console.error("Socket authentication error:", error);
}
};
exports.authenticateSocket = authenticateSocket;

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"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.checkMessageRateLimit = exports.messageRateLimiter = void 0;
class RateLimiter {
limits = new Map();
maxMessages;
windowMs;
constructor(maxMessages = 10, windowMs = 60000) {
this.maxMessages = maxMessages;
this.windowMs = windowMs;
}
checkLimit(userId) {
const now = Date.now();
const userLimit = this.limits.get(userId) ?? { count: 0, resetTime: now + this.windowMs };
if (now > userLimit.resetTime) {
userLimit.count = 0;
userLimit.resetTime = now + this.windowMs;
}
userLimit.count++;
this.limits.set(userId, userLimit);
return userLimit.count <= this.maxMessages;
}
getRemainingTime(userId) {
const userLimit = this.limits.get(userId);
if (!userLimit)
return 0;
return Math.max(0, userLimit.resetTime - Date.now());
}
}
exports.messageRateLimiter = new RateLimiter(10, 60000); // 10 messages per minute
const checkMessageRateLimit = (socket) => {
const canSend = exports.messageRateLimiter.checkLimit(socket.userId);
if (!canSend) {
const remainingTime = exports.messageRateLimiter.getRemainingTime(socket.userId);
socket.emit("rate_limit_exceeded", {
message: `Too many messages. Please wait ${Math.ceil(remainingTime / 1000)} seconds before sending another message.`,
remainingTime,
});
}
return canSend;
};
exports.checkMessageRateLimit = checkMessageRateLimit;

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"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.createChatRoomSchema = exports.registerSchema = exports.loginSchema = exports.validate = void 0;
const zod_1 = require("zod");
const validate = (schema) => {
return (req, res, next) => {
try {
schema.parse(req.body);
next();
}
catch (error) {
if (error instanceof zod_1.z.ZodError) {
res.status(400).json({
success: false,
error: "Validation failed",
details: error.errors,
});
return;
}
next(error);
}
};
};
exports.validate = validate;
exports.loginSchema = zod_1.z.object({
email: zod_1.z.string().email("Invalid email format"),
password: zod_1.z.string().min(6, "Password must be at least 6 characters long"),
});
exports.registerSchema = zod_1.z.object({
username: zod_1.z.string().min(3, "Username must be at least 3 characters long"),
email: zod_1.z.string().email("Invalid email format"),
password: zod_1.z.string().min(6, "Password must be at least 6 characters long"),
});
exports.createChatRoomSchema = zod_1.z.object({
name: zod_1.z.string().min(1, "Room name is required"),
description: zod_1.z.string().optional(),
memberUsernames: zod_1.z.array(zod_1.z.string()).default([]),
});

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"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.authRoutes = void 0;
const authController_js_1 = require("../controllers/authController.js");
const validation_js_1 = require("../middleware/validation.js");
const express_1 = require("express");
const router = (0, express_1.Router)();
exports.authRoutes = router;
router.post("/register", (0, validation_js_1.validate)(validation_js_1.registerSchema), authController_js_1.AuthController.register);
router.post("/login", (0, validation_js_1.validate)(validation_js_1.loginSchema), authController_js_1.AuthController.login);

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"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.chatRoutes = void 0;
const chatController_js_1 = require("../controllers/chatController.js");
const auth_js_1 = require("../middleware/auth.js");
const validation_js_1 = require("../middleware/validation.js");
const express_1 = require("express");
const router = (0, express_1.Router)();
exports.chatRoutes = router;
router.use(auth_js_1.authenticateToken);
router.get("/chat-rooms", chatController_js_1.ChatController.getChatRooms);
router.post("/chat-rooms", (0, validation_js_1.validate)(validation_js_1.createChatRoomSchema), chatController_js_1.ChatController.createChatRoom);
router.get("/messages/:roomId", chatController_js_1.ChatController.getMessages);

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"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.apiRoutes = void 0;
const express_1 = require("express");
const authRoutes_js_1 = require("./authRoutes.js");
const chatRoutes_js_1 = require("./chatRoutes.js");
const router = (0, express_1.Router)();
exports.apiRoutes = router;
router.use("/auth", authRoutes_js_1.authRoutes);
router.use("/", chatRoutes_js_1.chatRoutes);

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"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.AuthService = void 0;
const database_js_1 = require("../config/database.js");
const env_js_1 = require("../config/env.js");
const bcryptjs_1 = __importDefault(require("bcryptjs"));
const jsonwebtoken_1 = __importDefault(require("jsonwebtoken"));
class AuthService {
static async register(data) {
try {
const existingUser = await database_js_1.prisma.user.findFirst({
where: {
OR: [{ email: data.email }, { username: data.username }],
},
});
if (existingUser) {
return {
success: false,
error: existingUser.email === data.email ? "Email already exists" : "Username already exists",
};
}
const hashedPassword = await bcryptjs_1.default.hash(data.password, 12);
const user = await database_js_1.prisma.user.create({
data: {
username: data.username,
email: data.email,
password: hashedPassword,
},
});
const token = this.generateToken({
userId: user.id,
username: user.username,
email: user.email,
});
return {
success: true,
data: {
token,
user: {
id: user.id,
username: user.username,
email: user.email,
},
},
};
}
catch (error) {
console.error("Registration error:", error);
return {
success: false,
error: "Registration failed",
};
}
}
static async login(data) {
try {
const user = await database_js_1.prisma.user.findUnique({
where: {
email: data.email,
},
});
if (!user || !(await bcryptjs_1.default.compare(data.password, user.password))) {
return {
success: false,
error: "Invalid email or password",
};
}
const token = this.generateToken({
userId: user.id,
username: user.username,
email: user.email,
});
return {
success: true,
data: {
token,
user: {
id: user.id,
username: user.username,
email: user.email,
},
},
};
}
catch (error) {
console.error("Login error:", error);
return {
success: false,
error: "Login failed",
};
}
}
static generateToken(payload) {
return jsonwebtoken_1.default.sign(payload, env_js_1.env.JWT_SECRET, { expiresIn: "7d" });
}
}
exports.AuthService = AuthService;

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"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.ChatService = void 0;
const database_js_1 = require("../config/database.js");
class ChatService {
static async getChatRooms(userId) {
try {
const chatRooms = await database_js_1.prisma.chatRoom.findMany({
where: {
members: {
some: {
userId,
},
},
},
include: {
members: {
include: {
user: {
select: {
id: true,
username: true,
isOnline: true,
avatar: true,
},
},
},
},
_count: {
select: {
messages: true,
},
},
},
orderBy: {
updatedAt: "desc",
},
});
return {
success: true,
data: chatRooms,
};
}
catch (error) {
console.error("Get chat rooms error:", error);
return {
success: false,
error: "Failed to retrieve chat rooms",
};
}
}
static async createChatRoom(userId, data) {
try {
const chatRoom = await database_js_1.prisma.chatRoom.create({
data: {
name: data.name,
description: data.description,
createdBy: userId,
members: {
create: [
{
userId,
role: "admin",
},
],
},
},
});
if (data.memberUsernames.length > 0) {
const users = await database_js_1.prisma.user.findMany({
where: {
username: {
in: data.memberUsernames,
},
},
});
const memberData = users.map((user) => ({
userId: user.id,
roomId: chatRoom.id,
}));
await database_js_1.prisma.chatRoomMember.createMany({
data: memberData,
skipDuplicates: true,
});
}
const fullChatRoom = await database_js_1.prisma.chatRoom.findUnique({
where: { id: chatRoom.id },
include: {
members: {
include: {
user: {
select: {
id: true,
username: true,
isOnline: true,
avatar: true,
},
},
},
},
_count: {
select: {
messages: true,
},
},
},
});
return {
success: true,
data: fullChatRoom,
};
}
catch (error) {
console.error("Create chat room error:", error);
return {
success: false,
error: "Failed to create chat room",
};
}
}
static async getMessages(query) {
try {
const page = Number.parseInt(query.page ?? "1");
const limit = Number.parseInt(query.limit ?? "50");
const skip = (page - 1) * limit;
const messages = await database_js_1.prisma.message.findMany({
where: {
roomId: query.roomId,
},
include: {
user: {
select: {
id: true,
username: true,
avatar: true,
},
},
reactions: {
include: {
user: {
select: {
id: true,
username: true,
},
},
},
},
},
orderBy: {
createdAt: "desc",
},
take: limit,
skip,
});
return {
success: true,
data: messages.reverse(),
};
}
catch (error) {
console.error("Get messages error:", error);
return {
success: false,
error: "Failed to retrieve messages",
};
}
}
static async checkRoomMembership(userId, roomId) {
try {
const membership = await database_js_1.prisma.chatRoomMember.findUnique({
where: {
userId_roomId: {
userId,
roomId,
},
},
});
return !!membership;
}
catch (error) {
console.error("Check room membership error:", error);
return false;
}
}
}
exports.ChatService = ChatService;

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"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.MessageService = void 0;
const database_js_1 = require("../config/database.js");
class MessageService {
static async sendMessage(userId, data) {
try {
const message = await database_js_1.prisma.message.create({
data: {
content: data.constent,
userId,
roomId: data.roomId,
},
include: {
user: {
select: {
id: true,
username: true,
avatar: true,
},
},
reactions: {
include: {
user: {
select: {
id: true,
username: true,
},
},
},
},
},
});
return {
success: true,
data: message,
};
}
catch (error) {
console.error("Send message error:", error);
return {
success: false,
error: "Failed to send message",
};
}
}
static async reactToMessage(userId, data) {
try {
const existingReaction = await database_js_1.prisma.messageReaction.findUnique({
where: {
userId_messageId_type: {
userId,
messageId: data.messageId,
type: data.type,
},
},
});
if (existingReaction) {
await database_js_1.prisma.messageReaction.delete({
where: {
id: existingReaction.id,
},
});
}
else {
await database_js_1.prisma.messageReaction.create({
data: {
userId,
messageId: data.messageId,
type: data.type,
},
});
}
const message = await database_js_1.prisma.message.findUnique({
where: {
id: data.messageId,
},
include: {
reactions: {
include: {
user: {
select: {
id: true,
username: true,
},
},
},
},
},
});
return {
success: true,
data: {
messageId: data.messageId,
reactions: message?.reactions ?? [],
},
};
}
catch (error) {
console.error("React to message error:", error);
return {
success: false,
error: "Failed to react to message",
};
}
}
}
exports.MessageService = MessageService;

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"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.handleConnection = void 0;
const database_js_1 = require("../config/database.js");
const rateLimiter_js_1 = require("../middleware/rateLimiter.js");
const chatService_js_1 = require("../services/chatService.js");
const messageService_js_1 = require("../services/messageService.js");
const handleConnection = async (io, socket) => {
console.log(`User connected: ${socket.user.username} (${socket.user.id})`);
await updateUserOnlineStatus(socket.userId, true);
await joinUserRooms(socket);
socket.on("send_message", (data) => handleSendMessage(io, socket, data));
socket.on("react_to_message", (data) => handleReactToMessage(io, socket, data));
socket.on("join_room", (roomId) => handleJoinRoom(socket, roomId));
socket.on("leave_room", (roomId) => handleLeaveRoom(socket, roomId));
socket.on("disconnect", () => handleDisconnect(socket));
};
exports.handleConnection = handleConnection;
const updateUserOnlineStatus = async (userId, isOnline) => {
try {
await database_js_1.prisma.user.update({
where: { id: userId },
data: {
isOnline,
lastSeen: new Date(),
},
});
}
catch (error) {
console.error(`Error updating user online status: ${error}`);
}
};
const joinUserRooms = async (socket) => {
try {
const userRooms = await database_js_1.prisma.chatRoomMember.findMany({
where: { userId: socket.userId },
include: { room: true },
});
userRooms.forEach(async (member) => {
await socket.join(member.roomId);
socket.to(member.roomId).emit("user_online", {
userId: socket.userId,
username: socket.user.username,
});
});
}
catch (error) {
console.error(`Error joining user rooms: ${error}`);
}
};
const handleSendMessage = async (io, socket, data) => {
try {
if (!(0, rateLimiter_js_1.checkMessageRateLimit)(socket))
return;
const isMember = await chatService_js_1.ChatService.checkRoomMembership(socket.userId, data.roomId);
if (!isMember) {
socket.emit("error", { message: "Not authorized to send messages to this room" });
return;
}
const result = await messageService_js_1.MessageService.sendMessage(socket.userId, data);
if (result.success) {
io.to(data.roomId).emit("new_message", result.data);
}
else {
socket.emit("error", { message: "Failed to send message" });
}
}
catch (error) {
console.error(`Error handling send message: ${error}`);
socket.emit("error", { message: "Failed to send message" });
}
};
const handleReactToMessage = async (io, socket, data) => {
try {
const result = await messageService_js_1.MessageService.reactToMessage(socket.userId, data);
if (result.success) {
const message = await database_js_1.prisma.message.findUnique({
where: { id: data.messageId },
select: { roomId: true },
});
if (message) {
io.to(message.roomId).emit("message_reaction_updated", result.data);
}
}
else {
socket.emit("error", { message: result.error });
}
}
catch (error) {
console.error(`Error handling react to message: ${error}`);
socket.emit("error", { message: "Failed to react to message" });
}
};
const handleJoinRoom = async (socket, roomId) => {
await socket.join(roomId);
};
const handleLeaveRoom = async (socket, roomId) => {
await socket.leave(roomId);
};
const handleDisconnect = async (socket) => {
console.log(`User disconnected: ${socket.user.username}`);
await updateUserOnlineStatus(socket.userId, false);
try {
const userRooms = await database_js_1.prisma.chatRoomMember.findMany({
where: {
userId: socket.userId,
},
});
userRooms.forEach((member) => {
socket.to(member.roomId).emit("user_offline", {
userId: socket.userId,
username: socket.user.username,
});
});
}
catch (error) {
console.error(`Error handling user disconnect: ${error}`);
}
};

2
backend/dist/types/index.js vendored Normal file
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"use strict";
Object.defineProperty(exports, "__esModule", { value: true });

36
backend/eslint.config.js Normal file
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// @ts-check
import eslint from "@eslint/js";
import tseslint from "typescript-eslint";
export default tseslint.config(
{
ignores: ["**/*.js"],
},
eslint.configs.recommended,
tseslint.configs.strictTypeChecked,
tseslint.configs.stylisticTypeChecked,
{
languageOptions: {
parserOptions: {
projectService: true,
tsconfigRootDir: import.meta.dirname,
},
},
},
{
rules: {
"@typescript-eslint/no-misused-promises": "off",
"@typescript-eslint/no-unsafe-assignment": "off",
"@typescript-eslint/no-unsafe-call": "off",
"@typescript-eslint/no-unsafe-member-access": "off",
"@typescript-eslint/no-confusing-void-expression": "off",
"@typescript-eslint/restrict-template-expressions": "off",
"@typescript-eslint/consistent-type-definitions": ["error", "type"],
"@typescript-eslint/no-unsafe-argument": "off",
"@typescript-eslint/no-extraneous-class": "off",
"@typescript-eslint/unbound-method": "off",
"@typescript-eslint/no-floating-promises": "off",
},
},
);

3936
backend/package-lock.json generated Normal file

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47
backend/package.json Normal file
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{
"name": "chat-app-backend",
"version": "0.0.1",
"description": "Backend of the chat app",
"license": "ISC",
"author": "",
"type": "commonjs",
"scripts": {
"dev": "tsx --watch --env-file .env src/index.ts",
"start": "node --env-file .env dist/index.js",
"build": "tsc && tsc-alias",
"lint": "eslint .",
"lint:fix": "eslint --fix .",
"format": "prettier --write .",
"db:push": "prisma db push",
"db:generate": "prisma generate",
"db:seed": "prisma db seed",
"db:studio": "prisma studio"
},
"dependencies": {
"@prisma/client": "^6.9.0",
"bcryptjs": "^3.0.2",
"cors": "^2.8.5",
"express": "^5.1.0",
"express-rate-limit": "^7.5.0",
"jsonwebtoken": "^9.0.2",
"socket.io": "^4.8.1",
"zod": "^3.25.62"
},
"devDependencies": {
"@eslint/js": "^9.28.0",
"@tsconfig/node22": "^22.0.2",
"@types/bcryptjs": "^2.4.6",
"@types/cors": "^2.8.19",
"@types/express": "^5.0.3",
"@types/jsonwebtoken": "^9.0.9",
"@types/node": "^24.0.0",
"eslint": "^9.28.0",
"prettier": "^3.5.3",
"prisma": "^6.9.0",
"tsc-alias": "^1.8.16",
"tsconfig-paths": "^4.2.0",
"tsx": "^4.20.1",
"typescript": "^5.8.3",
"typescript-eslint": "^8.34.0"
}
}

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-- CreateTable
CREATE TABLE "users" (
"id" TEXT NOT NULL,
"username" TEXT NOT NULL,
"email" TEXT NOT NULL,
"password" TEXT NOT NULL,
"avatar" TEXT,
"isOnline" BOOLEAN NOT NULL DEFAULT false,
"lastSeen" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
"createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
"updatedAt" TIMESTAMP(3) NOT NULL,
CONSTRAINT "users_pkey" PRIMARY KEY ("id")
);
-- CreateTable
CREATE TABLE "chat_rooms" (
"id" TEXT NOT NULL,
"name" TEXT NOT NULL,
"description" TEXT,
"isPrivate" BOOLEAN NOT NULL DEFAULT false,
"createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
"updatedAt" TIMESTAMP(3) NOT NULL,
"createdBy" TEXT NOT NULL,
CONSTRAINT "chat_rooms_pkey" PRIMARY KEY ("id")
);
-- CreateTable
CREATE TABLE "chat_room_members" (
"id" TEXT NOT NULL,
"userId" TEXT NOT NULL,
"roomId" TEXT NOT NULL,
"joinedAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
"role" TEXT NOT NULL DEFAULT 'member',
CONSTRAINT "chat_room_members_pkey" PRIMARY KEY ("id")
);
-- CreateTable
CREATE TABLE "messages" (
"id" TEXT NOT NULL,
"content" TEXT NOT NULL,
"createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
"updatedAt" TIMESTAMP(3) NOT NULL,
"userId" TEXT NOT NULL,
"roomId" TEXT NOT NULL,
CONSTRAINT "messages_pkey" PRIMARY KEY ("id")
);
-- CreateTable
CREATE TABLE "message_reactions" (
"id" TEXT NOT NULL,
"type" TEXT NOT NULL,
"createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
"userId" TEXT NOT NULL,
"messageId" TEXT NOT NULL,
CONSTRAINT "message_reactions_pkey" PRIMARY KEY ("id")
);
-- CreateIndex
CREATE UNIQUE INDEX "users_username_key" ON "users"("username");
-- CreateIndex
CREATE UNIQUE INDEX "users_email_key" ON "users"("email");
-- CreateIndex
CREATE UNIQUE INDEX "chat_room_members_userId_roomId_key" ON "chat_room_members"("userId", "roomId");
-- CreateIndex
CREATE UNIQUE INDEX "message_reactions_userId_messageId_type_key" ON "message_reactions"("userId", "messageId", "type");
-- AddForeignKey
ALTER TABLE "chat_rooms" ADD CONSTRAINT "chat_rooms_createdBy_fkey" FOREIGN KEY ("createdBy") REFERENCES "users"("id") ON DELETE RESTRICT ON UPDATE CASCADE;
-- AddForeignKey
ALTER TABLE "chat_room_members" ADD CONSTRAINT "chat_room_members_userId_fkey" FOREIGN KEY ("userId") REFERENCES "users"("id") ON DELETE CASCADE ON UPDATE CASCADE;
-- AddForeignKey
ALTER TABLE "chat_room_members" ADD CONSTRAINT "chat_room_members_roomId_fkey" FOREIGN KEY ("roomId") REFERENCES "chat_rooms"("id") ON DELETE CASCADE ON UPDATE CASCADE;
-- AddForeignKey
ALTER TABLE "messages" ADD CONSTRAINT "messages_userId_fkey" FOREIGN KEY ("userId") REFERENCES "users"("id") ON DELETE CASCADE ON UPDATE CASCADE;
-- AddForeignKey
ALTER TABLE "messages" ADD CONSTRAINT "messages_roomId_fkey" FOREIGN KEY ("roomId") REFERENCES "chat_rooms"("id") ON DELETE CASCADE ON UPDATE CASCADE;
-- AddForeignKey
ALTER TABLE "message_reactions" ADD CONSTRAINT "message_reactions_userId_fkey" FOREIGN KEY ("userId") REFERENCES "users"("id") ON DELETE CASCADE ON UPDATE CASCADE;
-- AddForeignKey
ALTER TABLE "message_reactions" ADD CONSTRAINT "message_reactions_messageId_fkey" FOREIGN KEY ("messageId") REFERENCES "messages"("id") ON DELETE CASCADE ON UPDATE CASCADE;

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# Please do not edit this file manually
# It should be added in your version-control system (e.g., Git)
provider = "postgresql"

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generator client {
provider = "prisma-client-js"
}
datasource db {
provider = "postgresql"
url = env("DATABASE_URL")
}
model User {
id String @id @default(cuid())
username String @unique
email String @unique
password String
avatar String?
isOnline Boolean @default(false)
lastSeen DateTime @default(now())
createdAt DateTime @default(now())
updatedAt DateTime @updatedAt
messages Message[]
reactions MessageReaction[]
chatRooms ChatRoomMember[]
createdRooms ChatRoom[]
@@map("users")
}
model ChatRoom {
id String @id @default(cuid())
name String
description String?
isPrivate Boolean @default(false)
createdAt DateTime @default(now())
updatedAt DateTime @updatedAt
createdBy String
creator User @relation(fields: [createdBy], references: [id])
messages Message[]
members ChatRoomMember[]
@@map("chat_rooms")
}
model ChatRoomMember {
id String @id @default(cuid())
userId String
roomId String
joinedAt DateTime @default(now())
role String @default("member") // member, admin
user User @relation(fields: [userId], references: [id], onDelete: Cascade)
room ChatRoom @relation(fields: [roomId], references: [id], onDelete: Cascade)
@@unique([userId, roomId])
@@map("chat_room_members")
}
model Message {
id String @id @default(cuid())
content String
createdAt DateTime @default(now())
updatedAt DateTime @updatedAt
userId String
roomId String
user User @relation(fields: [userId], references: [id], onDelete: Cascade)
room ChatRoom @relation(fields: [roomId], references: [id], onDelete: Cascade)
reactions MessageReaction[]
@@map("messages")
}
model MessageReaction {
id String @id @default(cuid())
type String // like, love, laugh, etc.
createdAt DateTime @default(now())
userId String
messageId String
user User @relation(fields: [userId], references: [id], onDelete: Cascade)
message Message @relation(fields: [messageId], references: [id], onDelete: Cascade)
@@unique([userId, messageId, type])
@@map("message_reactions")
}

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import { PrismaClient } from "@prisma/client";
export const prisma = new PrismaClient({
log: ["query", "info", "warn", "error"],
});
export const connectDatabase = async (): Promise<void> => {
try {
await prisma.$connect();
console.log("✅ Database connected successfully");
} catch (error) {
console.error("❌ Database connection failed:", error);
process.exit(1);
}
};
export const disconnectDatabase = async (): Promise<void> => {
await prisma.$disconnect();
};

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backend/src/config/env.ts Normal file
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import { z } from "zod";
const envSchema = z.object({
CORS_ORIGIN: z.string().default("*"),
DATABASE_URL: z.string(),
JWT_SECRET: z.string(),
NODE_ENV: z.enum(["development", "production", "test"]).default("development"),
PORT: z.string().transform(Number).default("3000"),
});
export const env = envSchema.parse(process.env);

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import { AuthService } from "@/services/authService.js";
import { AuthenticatedRequest, LoginRequest, RegisterRequest } from "@/types/index.js";
import { Response } from "express";
export class AuthController {
static async register(req: AuthenticatedRequest, res: Response) {
const data: RegisterRequest = req.body;
const result = await AuthService.register(data);
res.status(result.success ? 201 : 400).json(result);
}
static async login(req: AuthenticatedRequest, res: Response) {
const data: LoginRequest = req.body;
const result = await AuthService.login(data);
res.status(result.success ? 200 : 400).json(result);
}
}

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import { ChatService } from "@/services/chatService.js";
import { AuthenticatedRequest, CreateChatRoomRequest, GetMessagesQuery } from "@/types/index.js";
import type { Response } from "express";
export class ChatController {
static async getChatRooms(req: AuthenticatedRequest, res: Response) {
if (!req.user) {
res.status(401).json({ success: false, error: "Unauthorized" });
return;
}
const result = await ChatService.getChatRooms(req.user.userId);
res.status(result.success ? 200 : 500).json(result);
}
static async createChatRoom(req: AuthenticatedRequest, res: Response) {
if (!req.user) {
res.status(401).json({ success: false, error: "Unauthorized" });
return;
}
const data: CreateChatRoomRequest = req.body;
const result = await ChatService.createChatRoom(req.user.userId, data);
res.status(result.success ? 201 : 500).json(result);
}
static async getMessages(req: AuthenticatedRequest, res: Response) {
if (!req.user) {
res.status(401).json({ success: false, error: "Unauthorized" });
return;
}
const query: GetMessagesQuery = {
roomId: req.params.roomId,
page: req.query.page as string,
limit: req.query.limit as string,
};
const result = await ChatService.getMessages(query);
res.status(result.success ? 200 : 500).json(result);
}
}

71
backend/src/index.ts Normal file
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import cors from "cors";
import express, { Request, Response } from "express";
import http from "http";
import { Server } from "socket.io";
import { connectDatabase } from "./config/database.js";
import { env } from "./config/env.js";
import { authenticateSocket } from "./middleware/auth.js";
import { handleConnection } from "./socket/socketHandlers.js";
import { AuthenticatedSocket } from "./types/index.js";
const app = express();
const server = http.createServer(app);
const io = new Server(server, {
cors: {
methods: ["GET", "POST"],
origin: "http://localhost:5173",
},
});
app.use(
cors({
methods: ["GET", "POST"],
origin: "http://localhost:5173",
}),
);
app.use(express.json());
app.get("/health", (_, res) => {
res.json({ status: "OK", timestamp: new Date().toISOString() });
});
io.use(authenticateSocket);
io.on("connection", async (socket) => {
await handleConnection(io, socket as AuthenticatedSocket);
});
app.use((err: Error, _: Request, res: Response) => {
console.error("Unhandled error:", err);
res.status(500).json({
success: false,
error: env.NODE_ENV === "production" ? "Internal server error" : err.message,
});
});
const startServer = async () => {
try {
await connectDatabase();
server.listen(env.PORT, () => {
console.log(`🚀 Server running on port ${env.PORT}`);
console.log(`📊 Environment: ${env.NODE_ENV}`);
console.log(`🔗 CORS Origin: ${env.CORS_ORIGIN}`);
});
} catch (error) {
console.error("Failed to start server:", error);
process.exit(1);
}
};
process.on("SIGTERM", () => {
console.log("SIGTERM received, shutting down gracefully...");
server.close(() => {
console.log("HTTP server closed");
process.exit(0);
});
});
(async () => {
await startServer();
})()

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import { NextFunction, Response } from "express";
import jwt from "jsonwebtoken";
import { prisma } from "@/config/database.js";
import { env } from "@/config/env.js";
import { AuthenticatedRequest, AuthenticatedSocket, JWTPayload } from "@/types/index.js";
import { Socket } from "socket.io";
export const authenticateToken = (req: AuthenticatedRequest, res: Response, next: NextFunction) => {
try {
const authHeader = req.headers.authorization;
const token = authHeader?.split(" ")[1];
if (!token) {
res.status(401).json({ success: false, error: "Access token required" });
return;
}
const decoded = jwt.verify(token, env.JWT_SECRET) as JWTPayload;
req.user = decoded;
next();
} catch (error) {
console.error("Authentication error:", error);
res.status(403).json({ success: false, error: "Invalid or expired token" });
}
};
export const authenticateSocket = async (socket: Socket, next: (err?: Error) => void) => {
try {
const token = socket.handshake.auth.token as string | undefined;
if (!token) {
return next(new Error("Authentication token required"));
}
const decoded = jwt.verify(token, env.JWT_SECRET) as JWTPayload;
const user = await prisma.user.findUnique({
where: {
id: decoded.userId,
},
});
if (!user) return next(new Error("User not found"));
const authenticateSocket = socket as AuthenticatedSocket;
authenticateSocket.userId = user.id;
authenticateSocket.user = user;
next();
} catch (error) {
console.error("Socket authentication error:", error);
}
};

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import { AuthenticatedSocket } from "@/types/index.js";
type RateLimitData = {
count: number;
resetTime: number;
};
class RateLimiter {
private limits = new Map<string, RateLimitData>();
private readonly maxMessages: number;
private readonly windowMs: number;
constructor(maxMessages = 10, windowMs = 60000) {
this.maxMessages = maxMessages;
this.windowMs = windowMs;
}
checkLimit(userId: string) {
const now = Date.now();
const userLimit = this.limits.get(userId) ?? { count: 0, resetTime: now + this.windowMs };
if (now > userLimit.resetTime) {
userLimit.count = 0;
userLimit.resetTime = now + this.windowMs;
}
userLimit.count++;
this.limits.set(userId, userLimit);
return userLimit.count <= this.maxMessages;
}
getRemainingTime(userId: string) {
const userLimit = this.limits.get(userId);
if (!userLimit) return 0;
return Math.max(0, userLimit.resetTime - Date.now());
}
}
export const messageRateLimiter = new RateLimiter(10, 60000); // 10 messages per minute
export const checkMessageRateLimit = (socket: AuthenticatedSocket) => {
const canSend = messageRateLimiter.checkLimit(socket.userId);
if (!canSend) {
const remainingTime = messageRateLimiter.getRemainingTime(socket.userId);
socket.emit("rate_limit_exceeded", {
message: `Too many messages. Please wait ${Math.ceil(remainingTime / 1000)} seconds before sending another message.`,
remainingTime,
});
}
return canSend;
};

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import type { NextFunction, Request, Response } from "express";
import { z } from "zod";
export const validate = (schema: z.ZodSchema) => {
return (req: Request, res: Response, next: NextFunction) => {
try {
schema.parse(req.body);
next();
} catch (error) {
if (error instanceof z.ZodError) {
res.status(400).json({
success: false,
error: "Validation failed",
details: error.errors,
});
return;
}
next(error);
}
};
};
export const loginSchema = z.object({
email: z.string().email("Invalid email format"),
password: z.string().min(6, "Password must be at least 6 characters long"),
});
export const registerSchema = z.object({
username: z.string().min(3, "Username must be at least 3 characters long"),
email: z.string().email("Invalid email format"),
password: z.string().min(6, "Password must be at least 6 characters long"),
});
export const createChatRoomSchema = z.object({
name: z.string().min(1, "Room name is required"),
description: z.string().optional(),
memberUsernames: z.array(z.string()).default([]),
});

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import { AuthController } from "@/controllers/authController.js";
import { loginSchema, registerSchema, validate } from "@/middleware/validation.js";
import { Router } from "express";
const router = Router();
router.post("/register", validate(registerSchema), AuthController.register);
router.post("/login", validate(loginSchema), AuthController.login);
export { router as authRoutes };

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import { ChatController } from "@/controllers/chatController.js";
import { authenticateToken } from "@/middleware/auth.js";
import { createChatRoomSchema, validate } from "@/middleware/validation.js";
import { Router } from "express";
const router = Router();
router.use(authenticateToken);
router.get("/chat-rooms", ChatController.getChatRooms);
router.post("/chat-rooms", validate(createChatRoomSchema), ChatController.createChatRoom);
router.get("/messages/:roomId", ChatController.getMessages);
export { router as chatRoutes };

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import { Router } from "express";
import { authRoutes } from "./authRoutes.js";
import { chatRoutes } from "./chatRoutes.js";
const router = Router();
router.use("/auth", authRoutes);
router.use("/", chatRoutes);
export { router as apiRoutes };

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import { prisma } from "@/config/database.js";
import { env } from "@/config/env.js";
import { ApiResponse, JWTPayload, LoginRequest, RegisterRequest } from "@/types/index.js";
import bcrypt from "bcryptjs";
import jwt from "jsonwebtoken";
export class AuthService {
static async register(data: RegisterRequest): Promise<ApiResponse> {
try {
const existingUser = await prisma.user.findFirst({
where: {
OR: [{ email: data.email }, { username: data.username }],
},
});
if (existingUser) {
return {
success: false,
error: existingUser.email === data.email ? "Email already exists" : "Username already exists",
};
}
const hashedPassword = await bcrypt.hash(data.password, 12);
const user = await prisma.user.create({
data: {
username: data.username,
email: data.email,
password: hashedPassword,
},
});
const token = this.generateToken({
userId: user.id,
username: user.username,
email: user.email,
});
return {
success: true,
data: {
token,
user: {
id: user.id,
username: user.username,
email: user.email,
},
},
};
} catch (error) {
console.error("Registration error:", error);
return {
success: false,
error: "Registration failed",
};
}
}
static async login(data: LoginRequest): Promise<ApiResponse> {
try {
const user = await prisma.user.findUnique({
where: {
email: data.email,
},
});
if (!user || !(await bcrypt.compare(data.password, user.password))) {
return {
success: false,
error: "Invalid email or password",
};
}
const token = this.generateToken({
userId: user.id,
username: user.username,
email: user.email,
});
return {
success: true,
data: {
token,
user: {
id: user.id,
username: user.username,
email: user.email,
},
},
};
} catch (error) {
console.error("Login error:", error);
return {
success: false,
error: "Login failed",
};
}
}
private static generateToken(payload: JWTPayload): string {
return jwt.sign(payload, env.JWT_SECRET, { expiresIn: "7d" });
}
}

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import { prisma } from "@/config/database.js";
import { ApiResponse, CreateChatRoomRequest, GetMessagesQuery } from "@/types/index.js";
export class ChatService {
static async getChatRooms(userId: string): Promise<ApiResponse> {
try {
const chatRooms = await prisma.chatRoom.findMany({
where: {
members: {
some: {
userId,
},
},
},
include: {
members: {
include: {
user: {
select: {
id: true,
username: true,
isOnline: true,
avatar: true,
},
},
},
},
_count: {
select: {
messages: true,
},
},
},
orderBy: {
updatedAt: "desc",
},
});
return {
success: true,
data: chatRooms,
};
} catch (error) {
console.error("Get chat rooms error:", error);
return {
success: false,
error: "Failed to retrieve chat rooms",
};
}
}
static async createChatRoom(userId: string, data: CreateChatRoomRequest): Promise<ApiResponse> {
try {
const chatRoom = await prisma.chatRoom.create({
data: {
name: data.name,
description: data.description,
createdBy: userId,
members: {
create: [
{
userId,
role: "admin",
},
],
},
},
});
if (data.memberUsernames.length > 0) {
const users = await prisma.user.findMany({
where: {
username: {
in: data.memberUsernames,
},
},
});
const memberData = users.map((user) => ({
userId: user.id,
roomId: chatRoom.id,
}));
await prisma.chatRoomMember.createMany({
data: memberData,
skipDuplicates: true,
});
}
const fullChatRoom = await prisma.chatRoom.findUnique({
where: { id: chatRoom.id },
include: {
members: {
include: {
user: {
select: {
id: true,
username: true,
isOnline: true,
avatar: true,
},
},
},
},
_count: {
select: {
messages: true,
},
},
},
});
return {
success: true,
data: fullChatRoom,
};
} catch (error) {
console.error("Create chat room error:", error);
return {
success: false,
error: "Failed to create chat room",
};
}
}
static async getMessages(query: GetMessagesQuery): Promise<ApiResponse> {
try {
const page = Number.parseInt(query.page ?? "1");
const limit = Number.parseInt(query.limit ?? "50");
const skip = (page - 1) * limit;
const messages = await prisma.message.findMany({
where: {
roomId: query.roomId,
},
include: {
user: {
select: {
id: true,
username: true,
avatar: true,
},
},
reactions: {
include: {
user: {
select: {
id: true,
username: true,
},
},
},
},
},
orderBy: {
createdAt: "desc",
},
take: limit,
skip,
});
return {
success: true,
data: messages.reverse(),
};
} catch (error) {
console.error("Get messages error:", error);
return {
success: false,
error: "Failed to retrieve messages",
};
}
}
static async checkRoomMembership(userId: string, roomId: string) {
try {
const membership = await prisma.chatRoomMember.findUnique({
where: {
userId_roomId: {
userId,
roomId,
},
},
});
return !!membership;
} catch (error) {
console.error("Check room membership error:", error);
return false;
}
}
}

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import { prisma } from "@/config/database.js";
import { ApiResponse, ReactToMessageRequest, SendMessageRequest } from "@/types/index.js";
export class MessageService {
static async sendMessage(userId: string, data: SendMessageRequest): Promise<ApiResponse> {
try {
const message = await prisma.message.create({
data: {
content: data.constent,
userId,
roomId: data.roomId,
},
include: {
user: {
select: {
id: true,
username: true,
avatar: true,
},
},
reactions: {
include: {
user: {
select: {
id: true,
username: true,
},
},
},
},
},
});
return {
success: true,
data: message,
};
} catch (error) {
console.error("Send message error:", error);
return {
success: false,
error: "Failed to send message",
};
}
}
static async reactToMessage(userId: string, data: ReactToMessageRequest): Promise<ApiResponse> {
try {
const existingReaction = await prisma.messageReaction.findUnique({
where: {
userId_messageId_type: {
userId,
messageId: data.messageId,
type: data.type,
},
},
});
if (existingReaction) {
await prisma.messageReaction.delete({
where: {
id: existingReaction.id,
},
});
} else {
await prisma.messageReaction.create({
data: {
userId,
messageId: data.messageId,
type: data.type,
},
});
}
const message = await prisma.message.findUnique({
where: {
id: data.messageId,
},
include: {
reactions: {
include: {
user: {
select: {
id: true,
username: true,
},
},
},
},
},
});
return {
success: true,
data: {
messageId: data.messageId,
reactions: message?.reactions ?? [],
},
};
} catch (error) {
console.error("React to message error:", error);
return {
success: false,
error: "Failed to react to message",
};
}
}
}

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import { prisma } from "@/config/database.js";
import { checkMessageRateLimit } from "@/middleware/rateLimiter.js";
import { ChatService } from "@/services/chatService.js";
import { MessageService } from "@/services/messageService.js";
import { AuthenticatedSocket, ReactToMessageRequest, SendMessageRequest } from "@/types/index.js";
import { Server } from "socket.io";
export const handleConnection = async (io: Server, socket: AuthenticatedSocket) => {
console.log(`User connected: ${socket.user.username} (${socket.user.id})`);
await updateUserOnlineStatus(socket.userId, true);
await joinUserRooms(socket);
socket.on("send_message", (data: SendMessageRequest) => handleSendMessage(io, socket, data));
socket.on("react_to_message", (data: ReactToMessageRequest) => handleReactToMessage(io, socket, data));
socket.on("join_room", (roomId: string) => handleJoinRoom(socket, roomId));
socket.on("leave_room", (roomId: string) => handleLeaveRoom(socket, roomId));
socket.on("disconnect", () => handleDisconnect(socket));
};
const updateUserOnlineStatus = async (userId: string, isOnline: boolean) => {
try {
await prisma.user.update({
where: { id: userId },
data: {
isOnline,
lastSeen: new Date(),
},
});
} catch (error) {
console.error(`Error updating user online status: ${error}`);
}
};
const joinUserRooms = async (socket: AuthenticatedSocket) => {
try {
const userRooms = await prisma.chatRoomMember.findMany({
where: { userId: socket.userId },
include: { room: true },
});
userRooms.forEach(async (member) => {
await socket.join(member.roomId);
socket.to(member.roomId).emit("user_online", {
userId: socket.userId,
username: socket.user.username,
});
});
} catch (error) {
console.error(`Error joining user rooms: ${error}`);
}
};
const handleSendMessage = async (io: Server, socket: AuthenticatedSocket, data: SendMessageRequest) => {
try {
if (!checkMessageRateLimit(socket)) return;
const isMember = await ChatService.checkRoomMembership(socket.userId, data.roomId);
if (!isMember) {
socket.emit("error", { message: "Not authorized to send messages to this room" });
return;
}
const result = await MessageService.sendMessage(socket.userId, data);
if (result.success) {
io.to(data.roomId).emit("new_message", result.data);
} else {
socket.emit("error", { message: "Failed to send message" });
}
} catch (error) {
console.error(`Error handling send message: ${error}`);
socket.emit("error", { message: "Failed to send message" });
}
};
const handleReactToMessage = async (io: Server, socket: AuthenticatedSocket, data: ReactToMessageRequest) => {
try {
const result = await MessageService.reactToMessage(socket.userId, data);
if (result.success) {
const message = await prisma.message.findUnique({
where: { id: data.messageId },
select: { roomId: true },
});
if (message) {
io.to(message.roomId).emit("message_reaction_updated", result.data);
}
} else {
socket.emit("error", { message: result.error });
}
} catch (error) {
console.error(`Error handling react to message: ${error}`);
socket.emit("error", { message: "Failed to react to message" });
}
};
const handleJoinRoom = async (socket: AuthenticatedSocket, roomId: string) => {
await socket.join(roomId);
};
const handleLeaveRoom = async (socket: AuthenticatedSocket, roomId: string) => {
await socket.leave(roomId);
};
const handleDisconnect = async (socket: AuthenticatedSocket) => {
console.log(`User disconnected: ${socket.user.username}`);
await updateUserOnlineStatus(socket.userId, false);
try {
const userRooms = await prisma.chatRoomMember.findMany({
where: {
userId: socket.userId,
},
});
userRooms.forEach((member) => {
socket.to(member.roomId).emit("user_offline", {
userId: socket.userId,
username: socket.user.username,
});
});
} catch (error) {
console.error(`Error handling user disconnect: ${error}`);
}
};

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import { User } from "@prisma/client";
import { Request } from "express";
import { Socket } from "socket.io";
export type AuthenticatedRequest = Request & {
user?: {
userId: string;
email: string;
username: string;
};
};
export type JWTPayload = {
userId: string;
email: string;
username: string;
};
export type AuthenticatedSocket = Socket & {
userId: string;
user: User;
};
export type SendMessageRequest = {
roomId: string;
constent: string;
};
export type ReactToMessageRequest = {
messageId: string;
type: string;
};
// eslint-disable-next-line @typescript-eslint/no-explicit-any
export type ApiResponse<T = any> = {
success: boolean;
data?: T;
error?: string;
message?: string;
};
export type CreateChatRoomRequest = {
name: string;
description?: string;
memberUsernames: string[];
};
export type PaginationQuery = {
page?: string;
limit?: string;
};
export type GetMessagesQuery = PaginationQuery & {
roomId: string;
};
export type RegisterRequest = {
username: string;
email: string;
password: string;
};
export type LoginRequest = {
email: string;
password: string;
};

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{
"extends": "@tsconfig/node22/tsconfig.json",
"compilerOptions": {
"outDir": "./dist",
"baseUrl": ".",
"paths": {
"@/*": ["src/*"]
}
},
"include": ["src/**/*"]
}

24
frontend/.gitignore vendored Normal file
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# Logs
logs
*.log
npm-debug.log*
yarn-debug.log*
yarn-error.log*
pnpm-debug.log*
lerna-debug.log*
node_modules
dist
dist-ssr
*.local
# Editor directories and files
.vscode/*
!.vscode/extensions.json
.idea
.DS_Store
*.suo
*.ntvs*
*.njsproj
*.sln
*.sw?

10
frontend/.prettierrc Normal file
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{
"semi": true,
"singleQuote": true,
"trailingComma": "es5",
"printWidth": 80,
"tabWidth": 2,
"jsxSingleQuote": false,
"bracketSpacing": true,
"arrowParens": "always"
}

54
frontend/README.md Normal file
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# React + TypeScript + Vite
This template provides a minimal setup to get React working in Vite with HMR and some ESLint rules.
Currently, two official plugins are available:
- [@vitejs/plugin-react](https://github.com/vitejs/vite-plugin-react/blob/main/packages/plugin-react) uses [Babel](https://babeljs.io/) for Fast Refresh
- [@vitejs/plugin-react-swc](https://github.com/vitejs/vite-plugin-react/blob/main/packages/plugin-react-swc) uses [SWC](https://swc.rs/) for Fast Refresh
## Expanding the ESLint configuration
If you are developing a production application, we recommend updating the configuration to enable type-aware lint rules:
```js
export default tseslint.config({
extends: [
// Remove ...tseslint.configs.recommended and replace with this
...tseslint.configs.recommendedTypeChecked,
// Alternatively, use this for stricter rules
...tseslint.configs.strictTypeChecked,
// Optionally, add this for stylistic rules
...tseslint.configs.stylisticTypeChecked,
],
languageOptions: {
// other options...
parserOptions: {
project: ['./tsconfig.node.json', './tsconfig.app.json'],
tsconfigRootDir: import.meta.dirname,
},
},
})
```
You can also install [eslint-plugin-react-x](https://github.com/Rel1cx/eslint-react/tree/main/packages/plugins/eslint-plugin-react-x) and [eslint-plugin-react-dom](https://github.com/Rel1cx/eslint-react/tree/main/packages/plugins/eslint-plugin-react-dom) for React-specific lint rules:
```js
// eslint.config.js
import reactX from 'eslint-plugin-react-x'
import reactDom from 'eslint-plugin-react-dom'
export default tseslint.config({
plugins: {
// Add the react-x and react-dom plugins
'react-x': reactX,
'react-dom': reactDom,
},
rules: {
// other rules...
// Enable its recommended typescript rules
...reactX.configs['recommended-typescript'].rules,
...reactDom.configs.recommended.rules,
},
})
```

25
frontend/eslint.config.js Normal file
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import js from "@eslint/js";
import globals from "globals";
import tseslint from "typescript-eslint";
import pluginReact from "eslint-plugin-react";
import { defineConfig } from "eslint/config";
export default defineConfig([
{ files: ["**/*.{js,mjs,cjs,ts,mts,cts,jsx,tsx}"], plugins: { js }, extends: ["js/recommended"] },
{ files: ["**/*.{js,mjs,cjs,ts,mts,cts,jsx,tsx}"], languageOptions: { globals: globals.browser } },
tseslint.configs.recommended,
pluginReact.configs.flat.recommended,
{
files: ["**/*.{js,mjs,cjs,ts,mts,cts,jsx,tsx}"],
rules: {
"react/jsx-uses-react": "off",
"react/react-in-jsx-scope": "off",
"react/jsx-filename-extension": ["error", { extensions: [".jsx", ".tsx"] }],
"react/prop-types": "off",
"react/no-unescaped-entities": "off",
"react/jsx-no-target-blank": "warn",
"react/jsx-key": "warn"
}
}
]);

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<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<link rel="icon" type="image/svg+xml" href="/vite.svg" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Vite + React + TS</title>
</head>
<body>
<div id="root"></div>
<script type="module" src="/src/main.tsx"></script>
</body>
</html>

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frontend/package.json Normal file
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{
"name": "frontend",
"private": true,
"version": "0.0.0",
"type": "module",
"scripts": {
"dev": "vite",
"build": "tsc -b && vite build",
"lint": "eslint .",
"lint:fix": "eslint --fix .",
"format": "prettier --write .",
"preview": "vite preview"
},
"dependencies": {
"react": "^19.1.0",
"react-dom": "^19.1.0"
},
"devDependencies": {
"@eslint/js": "^9.28.0",
"@types/react": "^19.1.2",
"@types/react-dom": "^19.1.2",
"@vitejs/plugin-react-swc": "^3.9.0",
"eslint": "^9.28.0",
"eslint-config-prettier": "^10.1.5",
"eslint-plugin-react": "^7.37.5",
"globals": "^16.2.0",
"prettier": "^3.5.3",
"typescript": "~5.8.3",
"typescript-eslint": "^8.34.0",
"vite": "^6.3.5"
}
}

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<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" class="iconify iconify--logos" width="31.88" height="32" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 257"><defs><linearGradient id="IconifyId1813088fe1fbc01fb466" x1="-.828%" x2="57.636%" y1="7.652%" y2="78.411%"><stop offset="0%" stop-color="#41D1FF"></stop><stop offset="100%" stop-color="#BD34FE"></stop></linearGradient><linearGradient id="IconifyId1813088fe1fbc01fb467" x1="43.376%" x2="50.316%" y1="2.242%" y2="89.03%"><stop offset="0%" stop-color="#FFEA83"></stop><stop offset="8.333%" stop-color="#FFDD35"></stop><stop offset="100%" stop-color="#FFA800"></stop></linearGradient></defs><path fill="url(#IconifyId1813088fe1fbc01fb466)" d="M255.153 37.938L134.897 252.976c-2.483 4.44-8.862 4.466-11.382.048L.875 37.958c-2.746-4.814 1.371-10.646 6.827-9.67l120.385 21.517a6.537 6.537 0 0 0 2.322-.004l117.867-21.483c5.438-.991 9.574 4.796 6.877 9.62Z"></path><path fill="url(#IconifyId1813088fe1fbc01fb467)" d="M185.432.063L96.44 17.501a3.268 3.268 0 0 0-2.634 3.014l-5.474 92.456a3.268 3.268 0 0 0 3.997 3.378l24.777-5.718c2.318-.535 4.413 1.507 3.936 3.838l-7.361 36.047c-.495 2.426 1.782 4.5 4.151 3.78l15.304-4.649c2.372-.72 4.652 1.36 4.15 3.788l-11.698 56.621c-.732 3.542 3.979 5.473 5.943 2.437l1.313-2.028l72.516-144.72c1.215-2.423-.88-5.186-3.54-4.672l-25.505 4.922c-2.396.462-4.435-1.77-3.759-4.114l16.646-57.705c.677-2.35-1.37-4.583-3.769-4.113Z"></path></svg>

After

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42
frontend/src/App.css Normal file
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#root {
max-width: 1280px;
margin: 0 auto;
padding: 2rem;
text-align: center;
}
.logo {
height: 6em;
padding: 1.5em;
will-change: filter;
transition: filter 300ms;
}
.logo:hover {
filter: drop-shadow(0 0 2em #646cffaa);
}
.logo.react:hover {
filter: drop-shadow(0 0 2em #61dafbaa);
}
@keyframes logo-spin {
from {
transform: rotate(0deg);
}
to {
transform: rotate(360deg);
}
}
@media (prefers-reduced-motion: no-preference) {
a:nth-of-type(2) .logo {
animation: logo-spin infinite 20s linear;
}
}
.card {
padding: 2em;
}
.read-the-docs {
color: #888;
}

35
frontend/src/App.tsx Normal file
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import { useState } from 'react'
import reactLogo from './assets/react.svg'
import viteLogo from '/vite.svg'
import './App.css'
function App() {
const [count, setCount] = useState(0)
return (
<>
<div>
<a href="https://vite.dev" target="_blank" rel="noreferrer">
<img src={viteLogo} className="logo" alt="Vite logo" />
</a>
<a href="https://react.dev" target="_blank" rel="noreferrer">
<img src={reactLogo} className="logo react" alt="React logo" />
</a>
</div>
<h1>Vite + React</h1>
<div className="card">
<button onClick={() => setCount((count) => count + 1)}>
count is {count}
</button>
<p>
Edit <code>src/App.tsx</code> and save to test HMR
</p>
</div>
<p className="read-the-docs">
Click on the Vite and React logos to learn more
</p>
</>
)
}
export default App

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After

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68
frontend/src/index.css Normal file
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:root {
font-family: system-ui, Avenir, Helvetica, Arial, sans-serif;
line-height: 1.5;
font-weight: 400;
color-scheme: light dark;
color: rgba(255, 255, 255, 0.87);
background-color: #242424;
font-synthesis: none;
text-rendering: optimizeLegibility;
-webkit-font-smoothing: antialiased;
-moz-osx-font-smoothing: grayscale;
}
a {
font-weight: 500;
color: #646cff;
text-decoration: inherit;
}
a:hover {
color: #535bf2;
}
body {
margin: 0;
display: flex;
place-items: center;
min-width: 320px;
min-height: 100vh;
}
h1 {
font-size: 3.2em;
line-height: 1.1;
}
button {
border-radius: 8px;
border: 1px solid transparent;
padding: 0.6em 1.2em;
font-size: 1em;
font-weight: 500;
font-family: inherit;
background-color: #1a1a1a;
cursor: pointer;
transition: border-color 0.25s;
}
button:hover {
border-color: #646cff;
}
button:focus,
button:focus-visible {
outline: 4px auto -webkit-focus-ring-color;
}
@media (prefers-color-scheme: light) {
:root {
color: #213547;
background-color: #ffffff;
}
a:hover {
color: #747bff;
}
button {
background-color: #f9f9f9;
}
}

10
frontend/src/main.tsx Normal file
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import { StrictMode } from 'react'
import { createRoot } from 'react-dom/client'
import './index.css'
import App from './App.tsx'
createRoot(document.getElementById('root')!).render(
<StrictMode>
<App />
</StrictMode>,
)

1
frontend/src/vite-env.d.ts vendored Normal file
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/// <reference types="vite/client" />

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{
"compilerOptions": {
"tsBuildInfoFile": "./node_modules/.tmp/tsconfig.app.tsbuildinfo",
"target": "ES2020",
"useDefineForClassFields": true,
"lib": ["ES2020", "DOM", "DOM.Iterable"],
"module": "ESNext",
"skipLibCheck": true,
/* Bundler mode */
"moduleResolution": "bundler",
"allowImportingTsExtensions": true,
"verbatimModuleSyntax": true,
"moduleDetection": "force",
"noEmit": true,
"jsx": "react-jsx",
/* Linting */
"strict": true,
"noUnusedLocals": true,
"noUnusedParameters": true,
"erasableSyntaxOnly": true,
"noFallthroughCasesInSwitch": true,
"noUncheckedSideEffectImports": true
},
"include": ["src"]
}

7
frontend/tsconfig.json Normal file
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{
"files": [],
"references": [
{ "path": "./tsconfig.app.json" },
{ "path": "./tsconfig.node.json" }
]
}

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{
"compilerOptions": {
"tsBuildInfoFile": "./node_modules/.tmp/tsconfig.node.tsbuildinfo",
"target": "ES2022",
"lib": ["ES2023"],
"module": "ESNext",
"skipLibCheck": true,
/* Bundler mode */
"moduleResolution": "bundler",
"allowImportingTsExtensions": true,
"verbatimModuleSyntax": true,
"moduleDetection": "force",
"noEmit": true,
/* Linting */
"strict": true,
"noUnusedLocals": true,
"noUnusedParameters": true,
"erasableSyntaxOnly": true,
"noFallthroughCasesInSwitch": true,
"noUncheckedSideEffectImports": true
},
"include": ["vite.config.ts"]
}

8
frontend/vite.config.ts Normal file
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import { defineConfig } from 'vite'
import react from '@vitejs/plugin-react-swc'
// https://vite.dev/config/
export default defineConfig({
plugins: [react()],
})