feat: 0.0.1

internal/handlers/grpc/rpc_create_user.go

@@ -0,0 +1,58 @@
+package gapi
+
+import (
+	"context"
+
+	db "github.com/FernandoJVideira/simple_bank/internal/db/sqlc"
+	"github.com/FernandoJVideira/simple_bank/internal/service"
+	"github.com/FernandoJVideira/simple_bank/internal/val"
+	"github.com/FernandoJVideira/simple_bank/pb"
+	"google.golang.org/genproto/googleapis/rpc/errdetails"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
+)
+
+func (s *Server) CreateUser(ctx context.Context, req *pb.CreateUserRequest) (*pb.CreateUserResponse, error) {
+	violations := validateCreateUserRequest(req)
+	if violations != nil {
+		return nil, invalidArgumentError(violations)
+	}
+
+	result, err := s.userService.CreateUser(ctx, service.RegisterUserRequest{
+		Username: req.GetUsername(),
+		Password: req.GetPassword(),
+		FullName: req.GetFullName(),
+		Email:    req.GetEmail(),
+	})
+	if err != nil {
+		// Map service errors to gRPC status codes
+		if db.ErrorCode(err) == db.UniqueViolation {
+			return nil, status.Errorf(codes.AlreadyExists, "username already exists")
+		}
+		return nil, status.Errorf(codes.Internal, "failed to create user: %v", err)
+	}
+
+	resp := &pb.CreateUserResponse{
+		User: convertUser(result.User),
+	}
+	return resp, nil
+}
+
+func validateCreateUserRequest(req *pb.CreateUserRequest) (violations []*errdetails.BadRequest_FieldViolation) {
+	if err := val.ValidateUsername(req.GetUsername()); err != nil {
+		violations = append(violations, fieldViolation("username", err))
+	}
+
+	if err := val.ValidateFullName(req.GetFullName()); err != nil {
+		violations = append(violations, fieldViolation("full_name", err))
+	}
+
+	if err := val.ValidatePassword(req.GetPassword()); err != nil {
+		violations = append(violations, fieldViolation("password", err))
+	}
+
+	if err := val.ValidateEmail(req.GetEmail()); err != nil {
+		violations = append(violations, fieldViolation("email", err))
+	}
+	return violations
+}