package com.bruce.sams.common.config;

import com.bruce.sams.common.filter.JwtAuthFilter;
import com.bruce.sams.service.impl.CustomUserDetailsService;
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.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.web.SecurityFilterChain;
import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;

import java.util.Collections;

@Configuration
public class SecurityConfig {

    private final JwtAuthFilter jwtAuthFilter;

    public SecurityConfig(JwtAuthFilter jwtAuthFilter) {
        this.jwtAuthFilter = jwtAuthFilter;
    }

    @Bean
    public SecurityFilterChain securityFilterChain(HttpSecurity http) throws Exception {
        return http
                .csrf(csrf -> csrf.disable())
                .sessionManagement(session -> session.sessionCreationPolicy(SessionCreationPolicy.STATELESS))
                .authorizeHttpRequests(auth -> auth
                        .requestMatchers("/login").permitAll()  // 允许访问认证相关接口
                        .requestMatchers("/api/auth/login").permitAll()
                        .requestMatchers("/api/admin/**").hasAuthority("ADMIN")
                        .requestMatchers("/api/user/**").hasAuthority("participant")
                        .anyRequest().authenticated()
                )
                .addFilterBefore(jwtAuthFilter, UsernamePasswordAuthenticationFilter.class) // JWT 过滤器
                .build();
    }

    @Bean
    public AuthenticationManager authenticationManager(UserDetailsService userDetailsService) {
        DaoAuthenticationProvider authProvider = new DaoAuthenticationProvider();
        authProvider.setUserDetailsService(userDetailsService);
        authProvider.setPasswordEncoder(new BCryptPasswordEncoder());
        return new ProviderManager(Collections.singletonList(authProvider));
    }

    @Bean
    public UserDetailsService userDetailsService() {
        return new CustomUserDetailsService();
    }
}