package kr.re.etri.autoflow.security;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.authentication.dao.DaoAuthenticationProvider;
//import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.authentication.configuration.AuthenticationConfiguration;
import org.springframework.security.config.annotation.method.configuration.EnableMethodSecurity;
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.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.config.annotation.web.configurers.AbstractHttpConfigurer;
import org.springframework.security.config.http.SessionCreationPolicy;
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;

import kr.re.etri.autoflow.security.jwt.AuthEntryPointJwt;
import kr.re.etri.autoflow.security.jwt.AuthTokenFilter;
import kr.re.etri.autoflow.security.services.UserDetailsServiceImpl;

@Configuration
//@EnableWebSecurity
@EnableMethodSecurity
//(securedEnabled = true,
//jsr250Enabled = true,
//prePostEnabled = true) // by default
public class WebSecurityConfig { // extends WebSecurityConfigurerAdapter {
  @Autowired
  UserDetailsServiceImpl userDetailsService;

  @Autowired
  private AuthEntryPointJwt unauthorizedHandler;

  @Bean
  public AuthTokenFilter authenticationJwtTokenFilter() {
    return new AuthTokenFilter();
  }

//  @Override
//  public void configure(AuthenticationManagerBuilder authenticationManagerBuilder) throws Exception {
//    authenticationManagerBuilder.userDetailsService(userDetailsService).passwordEncoder(passwordEncoder());
//  }
  
  @Bean
  public DaoAuthenticationProvider authenticationProvider() {
      DaoAuthenticationProvider authProvider = new DaoAuthenticationProvider();
       
      authProvider.setUserDetailsService(userDetailsService);
      authProvider.setPasswordEncoder(passwordEncoder());
   
      return authProvider;
  }

//  @Bean
//  @Override
//  public AuthenticationManager authenticationManagerBean() throws Exception {
//    return super.authenticationManagerBean();
//  }

  @Bean
  public AuthenticationManager authenticationManager(AuthenticationConfiguration authConfig) throws Exception {
    return authConfig.getAuthenticationManager();
  }

  @Bean
  public PasswordEncoder passwordEncoder() {
    return new BCryptPasswordEncoder();
  }

//  @Override
//  protected void configure(HttpSecurity http) throws Exception {
//    http.cors().and().csrf().disable()
//        .exceptionHandling().authenticationEntryPoint(unauthorizedHandler).and()
//        .sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS).and()
//        .authorizeRequests().antMatchers("/api/auth/**").permitAll()
//        .antMatchers("/api/test/**").permitAll()
//        .anyRequest().authenticated();
//
//    http.addFilterBefore(authenticationJwtTokenFilter(), UsernamePasswordAuthenticationFilter.class);
//  }

//  @Bean
//  public SecurityFilterChain filterChain(HttpSecurity http) throws Exception {
//    http.csrf(AbstractHttpConfigurer::disable)
//        .exceptionHandling(exception -> exception.authenticationEntryPoint(unauthorizedHandler))
//        .sessionManagement(session -> session.sessionCreationPolicy(SessionCreationPolicy.STATELESS))
//        .authorizeHttpRequests(auth ->
//          auth.requestMatchers("/api/auth/**").permitAll()
//                  .requestMatchers("/v3/api-docs/**", "/swagger-ui/**", "/swagger-ui.html").permitAll()
//                  .requestMatchers("/api/test/**").permitAll()
//              .anyRequest().authenticated()
//        );
//
//    http.authenticationProvider(authenticationProvider());
//
//    http.addFilterBefore(authenticationJwtTokenFilter(), UsernamePasswordAuthenticationFilter.class);
//
//    return http.build();
//  }

  // 임시 설정
  @Bean
  public SecurityFilterChain filterChain(HttpSecurity http) throws Exception {
    http.csrf(AbstractHttpConfigurer::disable)
            .exceptionHandling(exception -> exception.authenticationEntryPoint(unauthorizedHandler))
            .sessionManagement(session -> session.sessionCreationPolicy(SessionCreationPolicy.STATELESS))
            .authorizeHttpRequests(auth ->
                    auth.anyRequest().permitAll() // 모든 요청 허용
            );

    http.authenticationProvider(authenticationProvider());
    http.addFilterBefore(authenticationJwtTokenFilter(), UsernamePasswordAuthenticationFilter.class);

    return http.build();
  }
}