FEAT: Auth useing encrypted credentials in DB

src/main/java/com/mallardromain/hotel/config/DatabaseSeeder.java

@@ -0,0 +1,27 @@
+package com.mallardromain.hotel.config;
+import org.springframework.boot.CommandLineRunner;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.security.crypto.password.PasswordEncoder;
+
+import com.mallardromain.hotel.model.User;
+import com.mallardromain.hotel.repository.UserRepository;
+
+import io.jsonwebtoken.security.Password;
+
+@Configuration
+public class DatabaseSeeder {
+
+    @Bean
+    public CommandLineRunner seedDatabase(UserRepository userRepository, PasswordEncoder passwordEncoder) {
+        return args -> {
+            if (userRepository.count() == 0) {
+                User testUser1 = new User("test1", passwordEncoder.encode("password1"));
+                User testUser2 = new User("test2", passwordEncoder.encode("password2"));
+            
+                userRepository.save(testUser1);
+                userRepository.save(testUser2);
+            }
+        };
+    }
+}

src/main/java/com/mallardromain/hotel/config/SecurityConfig.java

@@ -2,8 +2,15 @@ package com.mallardromain.hotel.config;
 
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
+import org.springframework.security.authentication.AuthenticationManager;
+import org.springframework.security.authentication.ProviderManager;
+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.http.SessionCreationPolicy;
+import org.springframework.security.core.userdetails.UserDetailsService;
+import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
+import org.springframework.security.crypto.password.PasswordEncoder;
 import org.springframework.security.web.SecurityFilterChain;
 import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;
 
@@ -39,4 +46,24 @@ public class SecurityConfig {
         return http.build();
     }
 
+
+    @Bean
+    public PasswordEncoder passwordEncoder() {
+        return new BCryptPasswordEncoder();
+    }
+
+    @Bean
+    public AuthenticationManager authenticationManager(
+        AuthenticationConfiguration config,
+        UserDetailsService userDetailsService,
+        PasswordEncoder passwordEncoder
+    ) throws Exception {
+
+        DaoAuthenticationProvider authProvider = new DaoAuthenticationProvider(userDetailsService);
+        authProvider.setPasswordEncoder(passwordEncoder);
+        
+        return new ProviderManager(authProvider);
+    }
+
+
 }