mv logic into userService

allows reusing it in the views more easy

services/userService.go

@@ -0,0 +1,68 @@
+package services
+
+import(
+	"os"
+	"time"
+	"golang.org/x/crypto/bcrypt"
+
+	"github.com/golang-jwt/jwt/v5"
+
+	"example.com/gin/test/models"
+	"example.com/gin/test/repositories"
+)
+
+var(
+	Users UserService = UserService{}
+)
+
+type UserService struct {}
+
+func (u *UserService) Register(name string, email string, password string) (models.User, error) {
+	//hash pw
+	hash, err := bcrypt.GenerateFromPassword([]byte(password), 10)
+
+	if err != nil {
+		return models.User{}, err
+	}
+
+	user := models.User{Name: name, Email: email, Password: string(hash)}
+	_, err = repositories.Users.Create(user)
+
+	if err != nil {
+		return models.User{}, err
+	}
+
+	return user, nil
+}
+
+//return jwt tokenstring on success
+func (u *UserService) Login(email string, password string) (string, error) {
+	//lookup requested user
+	user, err := repositories.Users.GetByEmail(email)
+
+	if err != nil {
+		return "", err
+	}
+
+	// compare sent with saved pass
+	err = bcrypt.CompareHashAndPassword([]byte(user.Password), []byte(password))
+
+	if err != nil {
+		return "", err
+	}
+
+	//generate jwt token
+	token := jwt.NewWithClaims(jwt.SigningMethodHS256, jwt.MapClaims{
+		"sub": user.ID,
+		"exp": time.Now().Add(time.Hour * 24).Unix(),
+	})
+
+	// Sign and get the complete encoded token as a string using the secret
+	tokenString, err := token.SignedString([]byte(os.Getenv("SECRET")))
+
+	if err != nil {
+		return "", err
+	}
+
+	return tokenString, nil
+}