add: register and login with DB query AND some struct type correction

internal/api/service/auth_service.go

@@ -43,7 +43,7 @@ func (s *AuthService) Login(email, password string) (*models.LoginResponse, erro
 	}
 
 	if user == nil {
-		return nil, ErrInvalidCredentials
+		return nil, ErrUserNotFound
 	}
 
 	// Verify password
@@ -104,6 +104,7 @@ func (s *AuthService) Login(email, password string) (*models.LoginResponse, erro
 		redirectURL = "/"
 	}
 
+	// TODO: Apakah kita perlu param email untuk generate access token?
 	// Generate tokens
 	accessToken, err := s.jwtManager.GenerateAccessToken(user.ID, user.Email, user.Role, user.Name, additionalClaims)
 	if err != nil {

internal/api/service/register_service.go

@@ -0,0 +1,117 @@
+package service
+
+import (
+	"database/sql"
+	"errors"
+	"fmt"
+
+	"devone.aplikasi.web.id/gitea/mario/go-ohif-proxy/internal/api/models"
+	"devone.aplikasi.web.id/gitea/mario/go-ohif-proxy/internal/api/repository"
+)
+
+var (
+	ErrEmailExists    = errors.New("email already exists")
+	ErrUserNotCreated = errors.New("failed to create user")
+	ErrInvalidRole    = errors.New("invalid user role")
+	ErrInvalidPatient = errors.New("invalid patient data")
+	ErrInvalidDoctor  = errors.New("invalid doctor data")
+)
+
+// RegisterRequest represents a user registration request
+type RegisterRequest struct {
+	Email    string                 `json:"email"`
+	Password string                 `json:"password"`
+	Name     string                 `json:"name"`
+	Role     string                 `json:"role"` // "patient", "ref_doctor", "expertise_doctor", or "admin"
+	Patient  *models.PatientDetails `json:"patient,omitempty"`
+	Doctor   *models.DoctorDetails  `json:"doctor,omitempty"`
+	Studies  []models.Study         `json:"studies,omitempty"` // Study records for patient
+}
+
+// RegisterService handles user registration
+type RegisterService struct {
+	userRepo    *repository.UserRepository
+	patientRepo *repository.PatientRepository
+	doctorRepo  *repository.DoctorRepository
+	studyRepo   *repository.StudyRepository
+}
+
+// NewRegisterService creates a new register service
+func NewRegisterService() *RegisterService {
+	return &RegisterService{
+		userRepo:    repository.NewUserRepository(),
+		patientRepo: repository.NewPatientRepository(),
+		doctorRepo:  repository.NewDoctorRepository(),
+		studyRepo:   repository.NewStudyRepository(),
+	}
+}
+
+// Register creates a new user with their associated role-specific data
+func (s *RegisterService) Register(req *RegisterRequest) (*models.User, error) {
+	// Validate role
+	if req.Role != "patient" && req.Role != "ref_doctor" && req.Role != "expertise_doctor" && req.Role != "admin" {
+		return nil, ErrInvalidRole
+	}
+
+	// Check role-specific data
+	if req.Role == "patient" && (req.Patient == nil || req.Patient.PatientID == "" || req.Patient.DateOfBirth == "") {
+		return nil, ErrInvalidPatient
+	}
+
+	if (req.Role == "ref_doctor" || req.Role == "expertise_doctor") && (req.Doctor == nil || req.Doctor.DoctorID == "") {
+		return nil, ErrInvalidDoctor
+	}
+
+	// Check if email already exists
+	existingUser, err := s.userRepo.GetUserByEmail(req.Email)
+	if err != nil && err != sql.ErrNoRows {
+		return nil, fmt.Errorf("error checking existing user: %w", err)
+	}
+
+	if existingUser != nil {
+		return nil, ErrEmailExists
+	}
+
+	// Create user
+	newUser := &models.User{
+		Email:    req.Email,
+		Password: req.Password, // Will be hashed in repository
+		Role:     req.Role,
+		Name:     req.Name,
+	}
+
+	if err := s.userRepo.CreateUser(newUser); err != nil {
+		return nil, fmt.Errorf("error creating user: %w", err)
+	}
+
+	// Create role-specific data
+	if req.Role == "patient" {
+		err = s.patientRepo.CreatePatient(req.Patient, newUser.ID)
+		if err != nil {
+			// TODO: Consider rollback user creation if this fails
+			return nil, fmt.Errorf("error creating patient: %w", err)
+		}
+
+		// Create associated study records if provided
+		if len(req.Studies) > 0 {
+			for _, study := range req.Studies {
+				if study.StudyInstanceUID == "" {
+					continue // Skip studies without UIDs
+				}
+
+				err = s.studyRepo.CreateStudy(req.Patient.PatientID, study)
+				if err != nil {
+					return nil, fmt.Errorf("error creating study for patient: %w", err)
+				}
+			}
+		}
+	} else if req.Role == "ref_doctor" || req.Role == "expertise_doctor" {
+		err = s.doctorRepo.CreateDoctor(req.Doctor, newUser.ID)
+		if err != nil {
+			// TODO: Consider rollback user creation if this fails
+			return nil, fmt.Errorf("error creating doctor: %w", err)
+		}
+	}
+
+	return newUser, nil
+}