validation.js

const Joi = require('joi');
const jwt = require('jsonwebtoken');

// validating registration
const registerValidation = (data) => {
    const schema = Joi.object({
        name: Joi.string().min(6).max(255).required(),
        email: Joi.string().min(6).max(255).required(),
        password: Joi.string().min(6).max(255).required()
    });
    return schema.validate(data);
}

// validating login
const loginValidation = (data) => {
    const schema = Joi.object({
        email: Joi.string().min(6).max(255).required(),
        password: Joi.string().min(6).max(255).required()
    });
    return schema.validate(data);
}

// logic to verify our token (JWT)
 const verifyToken = (req, res, next) => {
    const token =req.header("auth-token");

    if (!token) return res.status(401).json({error: "Access Denied"});

    try {
        const verified = jwt.verify(token, process.env.TOKEN_SECRET);
        req.user = verified;
        next(); 
    }
    catch (error){
        res.status(400).json({error:"Token is not valid"});
    }
} 

module.exports = { registerValidation, loginValidation, verifyToken };