package jwt

import (
	"time"

	"github.com/dgrijalva/jwt-go"
	"github.com/google/uuid"
)

// Token contains everything to authenticate a user.
type Token struct {
	username string
	name     string
	expiry   float64
	id       uuid.UUID
}

func verifyToken(token *jwt.Token) (jwt.MapClaims, error) {
	if !token.Valid {
		return nil, ErrInvalidToken
	}

	claims, ok := token.Claims.(jwt.MapClaims)
	if !ok {
		return nil, ErrInvalidToken
	}

	if !claims.VerifyExpiresAt(time.Now().Unix(), true) {
		return nil, ErrTokenExpired
	}

	return claims, nil
}

func (t *Token) GetName() string {
	return t.name
}

func (t *Token) GetUsername() string {
	return t.username
}

func (t *Token) GetExpiry() float64 {
	return t.expiry
}

func (t *Token) GetID() uuid.UUID {
	return t.id
}