package com.example.bankcards.config;

import com.example.bankcards.security.JwtAuthenticationFilter;
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.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.configurers.AbstractHttpConfigurer;
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;

@Configuration
@EnableWebSecurity
@EnableMethodSecurity
@RequiredArgsConstructor
public class SecurityConfig {

    private final JwtAuthenticationFilter jwtAuthFilter;
    private final UserDetailsService userDetailsService;

    @Bean
    public SecurityFilterChain securityFilterChain(HttpSecurity http)
        throws Exception {
        return http
            .csrf(AbstractHttpConfigurer::disable)
            .authorizeHttpRequests(auth ->
                auth
                    .requestMatchers("/api/auth/**")
                    .permitAll()
                    .requestMatchers(
                        "/swagger-ui/**",
                        "/v3/api-docs/**",
                        "/swagger-ui.html"
                    )
                    .permitAll()
                    .requestMatchers("/api/admin/**")
                    .hasAuthority("ROLE_ADMIN")
                    .anyRequest()
                    .authenticated()
            )
            .sessionManagement(sess ->
                sess.sessionCreationPolicy(SessionCreationPolicy.STATELESS)
            )
            .authenticationProvider(authenticationProvider())
            .addFilterBefore(
                jwtAuthFilter,
                UsernamePasswordAuthenticationFilter.class
            )
            .build();
    }

    @Bean
    public AuthenticationProvider authenticationProvider() {
        DaoAuthenticationProvider provider = new DaoAuthenticationProvider();
        provider.setUserDetailsService(userDetailsService);
        provider.setPasswordEncoder(passwordEncoder());
        return provider;
    }

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

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