userController.js

import cloudinary from "../lib/cloudinary.js";
import { generateToken } from "../lib/utils.js";
import User from "../models/User.js";
import bcrypt from "bcryptjs";

// sign up new user
export const signup = async (req, res) => {
	const { fullName, email, password, bio } = req.body;

	try {
		if (!fullName || !email || !password || !bio) {
			return res
				.status(400)
				.json({ success: false, message: "Missing details" });
		}

		const existingUser = await User.findOne({ email });

		if (existingUser) {
			return res
				.status(409)
				.json({ success: false, message: "Account already exists" });
		}

		const salt = await bcrypt.genSalt(10);
		const hashedPassword = await bcrypt.hash(password, salt);

		const newUser = await User.create({
			fullName,
			email,
			password: hashedPassword,
			bio,
		});

		// remove password before sending
		const userResponse = newUser.toObject();
		delete userResponse.password;

		const token = generateToken(newUser._id);

		res.status(201).json({
			success: true,
			userData: userResponse,
			token,
			message: "Account created successfully",
		});
	} catch (error) {
		console.error(error.message);
		res.status(500).json({ success: false, message: error.message });
	}
};

// login user
export const login = async (req, res) => {
	try {
		const { email, password } = req.body;

		const userData = await User.findOne({ email });
		if (!userData) {
			return res.status(401).json({
				success: false,
				message: "Invalid credentials",
			});
		}

		const isPasswordCorrect = await bcrypt.compare(
			password,
			userData.password
		);
		if (!isPasswordCorrect) {
			return res.status(401).json({
				success: false,
				message: "Invalid credentials",
			});
		}

		const token = generateToken(userData._id);

		res.status(200).json({
			success: true,
			userData,
			token,
			message: "Login successful",
		});
	} catch (error) {
		console.log(error.message);
		res.status(500).json({
			success: false,
			message: "Server error",
		});
	}
};

// check if user is authenticated
export const checkAuth = (req, res) => {
	res.json({ success: true, user: req.user });
};

// update user profile details
// export const updateProfile = async (req, res) => {
// 	try {
// 		const { profilePic, bio, fullName } = req.body;

// 		const userId = req.user._id;

// 		let updatedUser;

// 		if (!profilePic) {
// 			updatedUser = await User.findByIdAndUpdate(
// 				userId,
// 				{ bio, fullName },
// 				{ new: true }
// 			);
// 		} else {
// 			const upload = await cloudinary.uploader.upload(profilePic);

// 			updatedUser = await User.findByIdAndUpdate(
// 				userId,
// 				{ profilePic: upload.secure_url, bio, fullName },
// 				{ new: true }
// 			);
// 		}

// 		res.status(200).json({ success: true, user: updatedUser });
// 	} catch (error) {
// 		console.log(error.message);
// 		res.status(500).json({ success: false, message: error.message });
// 	}
// };

// update profile pic
export const updateProfile = async (req, res) => {
	try {
		if (!req.user) {
			return res
				.status(401)
				.json({ success: false, message: "Unauthorized" });
		}

		const { profilePic, bio, fullName } = req.body;
		const userId = req.user._id;

		let updateFields = { bio, fullName };

		if (profilePic) {
			try {
				const upload = await cloudinary.uploader.upload(profilePic);
				updateFields.profilePic = upload.secure_url;
			} catch (err) {
				return res
					.status(500)
					.json({ success: false, message: "Image upload failed" });
			}
		}

		const updatedUser = await User.findByIdAndUpdate(userId, updateFields, {
			new: true,
		}).select("-password");

		res.status(200).json({ success: true, user: updatedUser });
	} catch (error) {
		console.log(error.message);
		res.status(500).json({ success: false, message: error.message });
	}
};