package com.skycrate.backend.skycrateBackend.config;

import com.skycrate.backend.skycrateBackend.security.JwtAuthenticationFilter;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.HttpMethod;
import org.springframework.security.authentication.AuthenticationProvider;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.http.SessionCreationPolicy;
import org.springframework.security.web.SecurityFilterChain;
import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;

@Configuration
public class SecurityConfig {

    private final AuthenticationProvider authenticationProvider;
    private final JwtAuthenticationFilter jwtAuthenticationFilter;

    public SecurityConfig(AuthenticationProvider authenticationProvider,
                          JwtAuthenticationFilter jwtAuthenticationFilter) {
        this.authenticationProvider = authenticationProvider;
        this.jwtAuthenticationFilter = jwtAuthenticationFilter;
    }

    @Bean
    public SecurityFilterChain securityFilterChain(HttpSecurity http) throws Exception {
        http
                .csrf(csrf -> csrf.disable())
                .sessionManagement(session -> session.sessionCreationPolicy(SessionCreationPolicy.STATELESS))
                .authenticationProvider(authenticationProvider)
                .authorizeHttpRequests(auth -> auth
                        .requestMatchers("/api/auth/logout","/api/auth/login", "/api/auth/register", "/actuator/**").permitAll()
                        .requestMatchers(HttpMethod.GET, "/public/**").permitAll()
                        .anyRequest().authenticated()
                )
                .requiresChannel(channel -> channel
                        .anyRequest().requiresSecure()
                )
                .headers(headers -> headers
                        .httpStrictTransportSecurity(hsts -> hsts
                                .includeSubDomains(true)
                                .maxAgeInSeconds(31536000)
                        )
                        // Spring Security 6+ no longer supports xss.block(true), so we just enable or disable it.
                        .xssProtection(xss -> xss.disable())
                        .frameOptions(frame -> frame.deny())
                )
                .addFilterBefore(jwtAuthenticationFilter, UsernamePasswordAuthenticationFilter.class);

        return http.build();
    }
}