change package,change message_code

src/main/java/ru/soune/nocopy/handler/RegRequestHandler.java

@@ -0,0 +1,60 @@
+package ru.soune.nocopy.handler;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.stereotype.Component;
+import org.springframework.validation.BeanPropertyBindingResult;
+import org.springframework.validation.BindingResult;
+import ru.soune.nocopy.dto.*;
+import ru.soune.nocopy.entity.AuthToken;
+import ru.soune.nocopy.exception.NotValidFieldException;
+import ru.soune.nocopy.exception.ValidationException;
+import ru.soune.nocopy.handler.validator.RegRequestValidator;
+import ru.soune.nocopy.repository.UserRepository;
+import ru.soune.nocopy.service.AuthService;
+
+import java.util.Arrays;
+import java.util.Map;
+
+@Slf4j
+@Component
+@RequiredArgsConstructor
+public class RegRequestHandler implements RequestHandler {
+    private final UserRepository userRepository;
+
+    private final RegRequestValidator regRequestValidator;
+
+    private final AuthService authService;
+
+    private final ObjectMapper objectMapper;
+
+    @Override
+    public BaseResponse handle(BaseRequest request) throws ValidationException {
+        RegRequest regRequest = objectMapper.convertValue(request.getMessageBody(), RegRequest.class);
+
+        if (userRepository.existsByEmail(regRequest.getEmail())) {
+            RegAnswer regAnswer = new RegAnswer();
+            regAnswer.setFieldErrors(Arrays.asList(Map.of("email", regRequest.getEmail())));
+
+            throw new NotValidFieldException("User already exists with email: " + regRequest.getEmail(),
+                    new BaseResponse(request.getMsgId(), MessageCode.REG_EMAIL_EXISTS.getCode(),
+                    MessageCode.REG_EMAIL_EXISTS.getDescription(), regAnswer));
+        }
+
+        BindingResult bindingResult = new BeanPropertyBindingResult(regRequest, "regRequest");
+        regRequestValidator.validate(regRequest, bindingResult);
+
+        if (bindingResult.hasErrors()) {
+            throw new ValidationException(bindingResult, request.getMsgId());
+        }
+
+        AuthToken authToken = authService.register(regRequest);
+
+        RegAnswer regAnswer = new RegAnswer();
+        regAnswer.setToken(authToken.getToken());
+
+        return new BaseResponse(request.getMsgId(), MessageCode.SUCCESS.getCode(),
+                MessageCode.SUCCESS.getDescription(), regAnswer);
+    }
+}