user-contoller.js

const User = require("../model/User");
const bcrypt = require("bcryptjs");
const { ApiResponse } = require("../utils/ApiResponse");
const { ApiError } = require("../utils/ApiError");

const getAllUser = async (req, res, next) => {
    try {
        const users = await User.find();
        if (!users || users.length === 0) {
            return res.status(404).json(new ApiError(404, "Users not found"));
        }
        return res.status(200).json(new ApiResponse(200, { users }, "Users fetched successfully"));
    } catch (err) {
        console.error(err);
        return res.status(500).json(new ApiError(500, "Server error while fetching users"));
    }
};

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

    try {
        const existingUser = await User.findOne({ email });
        if (existingUser) {
            return res.status(400).json(new ApiError(400, "User already exists"));
        }

        const hashedPassword = bcrypt.hashSync(password, 10);
        const user = new User({
            name,
            email,
            password: hashedPassword,
            blogs: []
        });

        await user.save();
        return res.status(201).json(new ApiResponse(201, { user }, "User registered successfully"));
    } catch (e) {
        console.error(e);
        return res.status(500).json(new ApiError(500, "Server error while signing up"));
    }
};

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

    if(!email || !password) {
        return res.status(404).json(new ApiError(404, "All fields are required"));
    }

    try {
        const existingUser = await User.findOne({ email });
        if (!existingUser) {
            return res.status(404).json(new ApiError({statusCode: 404}, {message: 'User not found'}));
        }

        const isPasswordCorrect = await bcrypt.compare(password, existingUser.password);
        if (!isPasswordCorrect) {
            return res.status(400).json(new ApiError(400, "Incorrect Password"));
        }

        return res.status(200).json(new ApiResponse(200, { user: existingUser }, "Login successful"));
    } catch (err) {
        console.error(err);
        return res.status(500).json(new ApiError(500, "Server error while logging in"));
    }
};

module.exports = { getAllUser, signUp, logIn };