the cringe

src/main/java/com/example/nto/config/SecurityConfig.java

@@ -3,8 +3,10 @@ package com.example.nto.config;
 import lombok.RequiredArgsConstructor;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
+import org.springframework.security.authentication.AuthenticationManager;
 import org.springframework.security.authentication.AuthenticationProvider;
 import org.springframework.security.authentication.dao.DaoAuthenticationProvider;
+import org.springframework.security.config.annotation.authentication.configuration.AuthenticationConfiguration;
 import org.springframework.security.config.annotation.web.builders.HttpSecurity;
 import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
 import org.springframework.security.config.annotation.web.configurers.AbstractAuthenticationFilterConfigurer;
@@ -39,6 +41,11 @@ public class SecurityConfig {
         return provider;
     }
 
+    @Bean
+    public AuthenticationManager authenticationManager(final AuthenticationConfiguration config) throws Exception {
+        return config.getAuthenticationManager();
+    }
+
     @Bean
     public PasswordEncoder passwordEncoder() {
         return new BCryptPasswordEncoder();

src/main/java/com/example/nto/controller/AuthController.java

@@ -0,0 +1,21 @@
+package com.example.nto.controller;
+
+import com.example.nto.model.dto.AuthCredentials;
+import com.example.nto.service.AuthService;
+import lombok.RequiredArgsConstructor;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequiredArgsConstructor
+@RequestMapping("/api")
+public class AuthController {
+    private final AuthService authService;
+
+    @PostMapping("/auth")
+    public void auth(@RequestParam final AuthCredentials authCredentials) {
+        authService.auth(authCredentials);
+    }
+}

src/main/java/com/example/nto/controller/EmployeeController.java

@@ -14,18 +14,13 @@ public class EmployeeController {
 
     private final EmployeeService employeeService;
 
-    @GetMapping("/auth")
-    public void auth(@RequestParam final String login, @RequestParam final String password) {
-        employeeService.auth(login, password);
-    }
-
-    @PreAuthorize("hasAuthority('User', 'Admin')")
+//    @PreAuthorize("hasAuthority('User', 'Admin')")
     @GetMapping("/info")
     public Employee info(@RequestParam final String login) {
         return employeeService.getEmployee(login);
     }
 
-    @PreAuthorize("hasAuthority('User', 'Admin')")
+//    @PreAuthorize("hasAuthority('User', 'Admin')")
     @PatchMapping("/open")
     public void open(@RequestParam final String login, @RequestBody final Code code) {
         employeeService.updateVisit(login, code.getValue());

src/main/java/com/example/nto/model/dto/AuthCredentials.java

@@ -0,0 +1,11 @@
+package com.example.nto.model.dto;
+
+import lombok.Builder;
+import lombok.Data;
+
+@Builder
+@Data
+public class AuthCredentials {
+    private String login;
+    private String password;
+}

src/main/java/com/example/nto/service/AuthService.java

@@ -0,0 +1,7 @@
+package com.example.nto.service;
+
+import com.example.nto.model.dto.AuthCredentials;
+
+public interface AuthService {
+    void auth(AuthCredentials authCredentials);
+}

src/main/java/com/example/nto/service/EmployeeCredentialsService.java

@@ -0,0 +1,7 @@
+package com.example.nto.service;
+
+import com.example.nto.model.entity.Employee;
+
+public interface EmployeeCredentialsService {
+
+}

src/main/java/com/example/nto/service/EmployeeService.java

@@ -5,13 +5,10 @@ import org.springframework.security.core.userdetails.UserDetails;
 
 public interface EmployeeService {
 
-    void auth(String login, String password);
-
     Employee getEmployee(String login);
 
     void updateVisit(String login, long value);
 
     void addEmployee(Employee employee);
 
-    UserDetails loadUserByUsername(String username);
 }

src/main/java/com/example/nto/service/impl/AuthServiceImpl.java

@@ -0,0 +1,21 @@
+package com.example.nto.service.impl;
+
+import com.example.nto.model.dto.AuthCredentials;
+import com.example.nto.model.entity.Employee;
+import com.example.nto.service.AuthService;
+import com.example.nto.service.EmployeeCredentialsService;
+import lombok.RequiredArgsConstructor;
+import org.springframework.security.authentication.AuthenticationManager;
+import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
+import org.springframework.stereotype.Service;
+
+@Service
+@RequiredArgsConstructor
+public class AuthServiceImpl implements AuthService {
+
+    private final AuthenticationManager authenticationManager;
+
+    public void auth(AuthCredentials authCredentials) {
+        authenticationManager.authenticate(new UsernamePasswordAuthenticationToken(authCredentials.getLogin(), authCredentials.getPassword()));
+    }
+}

src/main/java/com/example/nto/service/impl/EmployeeCredentialsServiceImpl.java

@@ -0,0 +1,25 @@
+package com.example.nto.service.impl;
+
+import com.example.nto.model.entity.Employee;
+import com.example.nto.repository.EmployeeRepository;
+import com.example.nto.service.EmployeeCredentialsService;
+import com.example.nto.service.EmployeeService;
+import com.example.nto.service.exception.EmployeeNotFoundException;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.security.core.userdetails.UserDetails;
+import org.springframework.security.core.userdetails.UserDetailsService;
+import org.springframework.security.core.userdetails.UsernameNotFoundException;
+import org.springframework.stereotype.Service;
+
+@Service
+public class EmployeeCredentialsServiceImpl implements EmployeeCredentialsService, UserDetailsService {
+
+    @Autowired
+    private EmployeeRepository employeeRepository;
+
+    @Override
+    public UserDetails loadUserByUsername(String login) throws UsernameNotFoundException {
+        return employeeRepository.findEmployeeByLogin(login);
+    }
+
+}

src/main/java/com/example/nto/service/impl/EmployeeServiceImpl.java

@@ -7,6 +7,7 @@ import com.example.nto.service.EmployeeService;
 import com.example.nto.service.exception.CodeNotFoundException;
 import com.example.nto.service.exception.EmployeeNotFoundException;
 import lombok.RequiredArgsConstructor;
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.security.authentication.AuthenticationManager;
 import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
 import org.springframework.security.core.userdetails.UserDetails;
@@ -19,7 +20,7 @@ import java.time.LocalDateTime;
 
 @Service
 @RequiredArgsConstructor
-public class EmployeeServiceImpl implements EmployeeService, UserDetailsService {
+public class EmployeeServiceImpl implements EmployeeService {
 
     private final EmployeeRepository employeeRepository;
 
@@ -27,14 +28,6 @@ public class EmployeeServiceImpl implements EmployeeService, UserDetailsService
 
     private final CodeRepository codeRepository;
 
-    private final AuthenticationManager authenticationManager;
-
-    @Override
-    public void auth(final String login, final String password) {
-        final Employee employee = getEmployee(login);
-        authenticationManager.authenticate(new UsernamePasswordAuthenticationToken(employee.getUsername(), employee.getPassword()));
-    }
-
     @Override
     public Employee getEmployee(final String login) {
         if (!employeeRepository.existsByLogin(login)) {
@@ -61,9 +54,4 @@ public class EmployeeServiceImpl implements EmployeeService, UserDetailsService
         employee.setPassword(passwordEncoder.encode(employee.getPassword()));
         employeeRepository.save(employee);
     }
-
-    @Override
-    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
-        return employeeRepository.findEmployeeByLogin(username);
-    }
 }