feat(jwt): add type fix and re new helpers

jwt.go

@@ -40,6 +40,9 @@ func ParseRefreshToken(token string, publicKey *rsa.PublicKey) (*JWT, error) {
 	if !ok {
 		return nil, fmt.Errorf("invalid refresh token claims")
 	}
+	if refreshTokenClaims.Type != RefreshType {
+		return nil, fmt.Errorf("invalid token type")
+	}
 	return refreshTokenClaims, nil
 }
 
@@ -51,6 +54,10 @@ type JWT struct {
 	jwt.RegisteredClaims
 }
 
+func (j *JWT) GetJWT() *JWT {
+	return j
+}
+
 func (j *JWT) WithTtl(ttl time.Duration) *JWT {
 	j.ExpiresAt = jwt.NewNumericDate(time.Now().Add(ttl))
 	j.IssuedAt = jwt.NewNumericDate(time.Now())
@@ -114,8 +121,37 @@ func (j *JWT) CheckAuthorizationInfo(secret string, tai TokenAuthorizationInfo)
 	return j.GetAuthorizationInfo(secret).Equal(tai)
 }
 
-func Encode(j interface{}, privateKey *rsa.PrivateKey) (string, error) {
-	payload, ok := j.(jwt.Claims)
+type JWTInterface interface {
+	GetJWT() *JWT
+}
+
+func ReNew[T interface{}](j T) (*T, error) {
+	newJwt, ok := interface{}(&j).(JWTInterface)
+	if !ok {
+		return nil, fmt.Errorf("invalid jwt claims")
+	}
+
+	internalJwt := newJwt.GetJWT()
+	exp, _ := internalJwt.GetExpirationTime()
+	iss, _ := internalJwt.GetIssuedAt()
+	ttl := exp.Sub(iss.Time)
+	internalJwt.WithTtl(ttl)
+
+	return &j, nil
+}
+
+func Encode[T interface{}](j T, privateKey *rsa.PrivateKey) (string, error) {
+	newJwt, ok := interface{}(&j).(JWTInterface)
+	if !ok {
+		return "", fmt.Errorf("invalid jwt claims")
+	}
+
+	internalJwt := newJwt.GetJWT()
+	if internalJwt.Type == "" {
+		internalJwt.Type = AccessType
+	}
+
+	payload, ok := interface{}(&j).(jwt.Claims)
 	if !ok {
 		return "", fmt.Errorf("invalid jwt claims")
 	}

jwt_test.go

@@ -1,6 +1,7 @@
 package jwt
 
 import (
+	"github.com/golang-jwt/jwt/v5"
 	"github.com/stretchr/testify/assert"
 	"path/filepath"
 	"testing"
@@ -38,3 +39,21 @@ func TestJWT(t *testing.T) {
 	assert.Equal(t, f.FirstName, "Igor")
 	assert.Equal(t, f.LastName, "Sypachev")
 }
+
+func TestReNewJWT(t *testing.T) {
+	accessClaims := AccessTokenClaims{
+		UserId:    "123",
+		FirstName: "Igor",
+		LastName:  "Sypachev",
+	}
+	accessClaims.ExpiresAt = jwt.NewNumericDate(time.Now())
+	accessClaims.IssuedAt = jwt.NewNumericDate(time.Now().Add(-1 * time.Hour))
+	accessClaims.NotBefore = jwt.NewNumericDate(time.Now())
+
+	assert.Equal(t, true, accessClaims.ExpiresAt.Time.Unix() <= time.Now().Unix())
+
+	newAccessClaims, err := ReNew(accessClaims)
+	assert.Equal(t, true, err == nil)
+
+	assert.Equal(t, true, newAccessClaims.ExpiresAt.Time.Unix() > accessClaims.ExpiresAt.Time.Unix())
+}