app.post('/reset', async (req, res) => {
    try{
        //find a document with such email address
        const user = await User.findOne({email : req.body.email})
        //check if user object is not empty
        if(user){
            //generate hash
            const hash = new User(user).generatePasswordResetHash()
            //generate a password reset link
            const resetLink = `http://localhost:5000/reset?email=${user.email}?&hash=${hash}`
            //return reset link
            return res.status(200).json({
                resetLink
            })
            //remember to send a mail to the user
        }else{
            //respond with an invalid email
            return res.status(400).json({
                message : "Email Address is invalid"
            })
        } 
    }catch(err){
        console.log(err)
        return res.status(500).json({
            message : "Internal server error"
        })
    }
})