package models

import (
	"errors"
	"time"
)

// Different types of error returned by the VerifyToken function
var (
	ErrInvalidToken = errors.New("token is invalid")
	ErrExpiredToken = errors.New("token has expired")
)

// Valid checks if the token payload is valid or not
func (payload *Payload) Valid() error {
	if time.Now().After(payload.ExpiredAt) {
		return ErrExpiredToken
	}
	return nil
}