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

internal/api/handlers/register.go

@@ -0,0 +1,68 @@
+package handlers
+
+import (
+	"encoding/json"
+	"net/http"
+
+	"devone.aplikasi.web.id/gitea/mario/go-ohif-proxy/internal/api/service"
+	"go.uber.org/zap"
+)
+
+// RegisterHandler handles user registration requests
+type RegisterHandler struct {
+	logger          *zap.Logger
+	registerService *service.RegisterService
+}
+
+// NewRegisterHandler creates a new registration handler
+func NewRegisterHandler(logger *zap.Logger, registerService *service.RegisterService) *RegisterHandler {
+	return &RegisterHandler{
+		logger:          logger,
+		registerService: registerService,
+	}
+}
+
+// Register handles the creation of new users, patients, and doctors
+func (h *RegisterHandler) Register(w http.ResponseWriter, r *http.Request) {
+	// Parse registration request
+	var req service.RegisterRequest
+	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
+		h.logger.Error("Failed to parse registration request", zap.Error(err))
+		http.Error(w, "Invalid request body", http.StatusBadRequest)
+		return
+	}
+
+	// Validate required fields
+	if req.Email == "" || req.Password == "" || req.Name == "" || req.Role == "" {
+		http.Error(w, "Missing required fields", http.StatusBadRequest)
+		return
+	}
+
+	// Perform registration
+	user, err := h.registerService.Register(&req)
+	if err != nil {
+		switch err {
+		case service.ErrEmailExists:
+			http.Error(w, "Email already exists", http.StatusConflict)
+		case service.ErrInvalidRole:
+			http.Error(w, "Invalid user role", http.StatusBadRequest)
+		case service.ErrInvalidPatient:
+			http.Error(w, "Invalid patient data", http.StatusBadRequest)
+		case service.ErrInvalidDoctor:
+			http.Error(w, "Invalid doctor data", http.StatusBadRequest)
+		default:
+			h.logger.Error("Registration failed", zap.Error(err))
+			http.Error(w, "Registration failed", http.StatusInternalServerError)
+		}
+		return
+	}
+
+	// Return created user
+	w.Header().Set("Content-Type", "application/json")
+	w.WriteHeader(http.StatusCreated)
+
+	// Don't include password in response
+	user.Password = ""
+
+	json.NewEncoder(w).Encode(user)
+}