feat: +register

package/backend/internal/user/service.go

@@ -0,0 +1,41 @@
+package user
+
+import (
+	"context"
+	"errors"
+
+	"golang.org/x/crypto/bcrypt"
+)
+
+type Service struct {
+	repo Repo
+}
+
+func NewService(repo Repo) Service {
+	return Service {
+		repo: repo,
+	}
+}
+
+func (s Service) Register(ctx context.Context, email, password string) error {
+	bytes, err := bcrypt.GenerateFromPassword([]byte(password), 14)
+	if err != nil {
+		return err
+	}
+
+	if err = s.repo.CreateUser(ctx, email, string(bytes)); err != nil {
+		switch {
+		case errors.Is(err, ErrDuplicateKey):
+			return ErrEmailAlreadyExists
+		default:
+			return err
+		}
+	}
+	
+	return nil
+}
+
+// func (s Service) Login(password string) (string, error) {
+// 	hash, err := s.repo.
+// 	err := bcrypt.CompareHashAndPassword([]byte(hash), []byte(password))
+// }