feat(users): init token service

service/token.go

@@ -0,0 +1,34 @@
+package service
+
+import (
+	"time"
+
+	"forge.capytal.company/capytalcode/project-comicverse/model"
+	"forge.capytal.company/loreddev/x/tinyssert"
+	"github.com/golang-jwt/jwt/v4"
+	"github.com/google/uuid"
+)
+
+type TokenService struct {
+	assert tinyssert.Assertions
+}
+
+func NewTokenService(assert tinyssert.Assertions) *TokenService {
+	return &TokenService{assert: assert}
+}
+
+func (s *TokenService) Issue(user model.User) (*jwt.Token, error) {
+	id, err := uuid.NewV7()
+	if err != nil {
+		return nil, err
+	}
+
+	now := time.Now()
+
+	t := jwt.NewWithClaims(jwt.SigningMethodES256, jwt.RegisteredClaims{
+		ID:        id.String(),
+		Subject:   user.Username,
+		IssuedAt:  jwt.NewNumericDate(now),
+		NotBefore: jwt.NewNumericDate(now),
+	})
+}