MERN_STACK_TEMPLATE/backend/controllers/auth.controller.js

import { User } from "../models/user.model.js";
import bcryptjs  from 'bcryptjs';

import {generateTokenAndSetCookie} from "../utils/generateTokenAndSetCookie.js"
import { sendVerificationEmail, sendWelcomeEmail } from "../mailtrap/emails.js";

export const signup = async (req, res) => {
	const { email, password, name } = req.body;

	try {
		if (!email || !password || !name) {
			throw new Error("All fields are required");
		}

		const userAlreadyExists = await User.findOne({ email });
		console.log("userAlreadyExists", userAlreadyExists);

		if (userAlreadyExists) {
			return res.status(400).json({ success: false, message: "User already exists" });
		}

		const hashedPassword = await bcryptjs.hash(password, 10);
		const verificationToken = Math.floor(100000 + Math.random() * 900000).toString();

		const user = new User({
			email,
			password: hashedPassword,
			name,
			verificationToken,
			verificationTokenExpiresAt: Date.now() + 24 * 60 * 60 * 1000, // 24 hours
		});

		await user.save();

		// jwt
		generateTokenAndSetCookie(res, user._id);
        await sendVerificationEmail(user.email, verificationToken);


		res.status(201).json({
			success: true,
			message: "User created successfully",
			user: {
				...user._doc,
				password: undefined,
			},
		});
	} catch (error) {
		res.status(400).json({ success: false, message: error.message });
	}
};

export const verifyEmail = async (req, res) => {
	const { code } = req.body;
	try {
		const user = await User.findOne({
			verificationToken: code,
			verificationTokenExpiresAt: { $gt: Date.now() },
		});

		if (!user) {
			return res.status(400).json({ success: false, message: "Invalid or expired verification code" });
		}

		user.isVerified = true;
		user.verificationToken = undefined;
		user.verificationTokenExpiresAt = undefined;
		await user.save();

		await sendWelcomeEmail(user.email, user.name);

		res.status(200).json({
			success: true,
			message: "Email verified successfully",
			user: {
				...user._doc,
				password: undefined,
			},
		});
	} catch (error) {
		console.log("error in verifyEmail ", error);
		res.status(500).json({ success: false, message: "Server error" });
	}
};


export const login = async (req, res) => {
    res.send("login route");
};
export const logout = async (req, res) => {
    res.send("logout route")
};