package pl.sudra.configuration;

import jakarta.annotation.Resource;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.authentication.dao.DaoAuthenticationProvider;
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.core.userdetails.User;
import org.springframework.security.core.userdetails.UserDetails;
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.provisioning.InMemoryUserDetailsManager;
import org.springframework.security.web.SecurityFilterChain;
import org.springframework.security.web.csrf.CsrfFilter;
import org.springframework.web.filter.CharacterEncodingFilter;

@Configuration
@EnableWebSecurity
//@EnableGlobalMethodSecurity(prePostEnabled = true, securedEnabled = true)
@EnableMethodSecurity
public class SecurityConfiguration {
    @Resource(name = "myAppUserDetailsService")
    private UserDetailsService userDetailsService;

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

    @Bean
    DaoAuthenticationProvider authProvider() {
        DaoAuthenticationProvider authProvider = new DaoAuthenticationProvider();
        // for database users
        authProvider.setUserDetailsService(userDetailsService);
        authProvider.setPasswordEncoder(passwordEncoder());
        // for in-memory users
        // authProvider.setUserDetailsService(userDetailsService());
        return authProvider;
    }

    @Bean
    public InMemoryUserDetailsManager userDetailsService() {
        UserDetails user = User.withDefaultPasswordEncoder()
                .username("user")
                .password("user")
                .roles("USER")
                .build();
        UserDetails admin = User.withDefaultPasswordEncoder()
                .username("admin")
                .password("admin")
                .roles("ADMIN", "USER")
                .build();
        UserDetails student = User.withDefaultPasswordEncoder()
                .username("student")
                .password("student")
                .roles("STUDENT")
                .build();
        return new InMemoryUserDetailsManager(user, admin, student);
    }

    @Bean
    public SecurityFilterChain filterChain(HttpSecurity http) throws Exception {
        CharacterEncodingFilter filter = new CharacterEncodingFilter();
        filter.setEncoding("UTF-8");
        filter.setForceEncoding(true);
        http.addFilterBefore(filter, CsrfFilter.class);

        http
                .authorizeHttpRequests((authz) -> authz
                        .requestMatchers("/appUsers*").hasRole("ADMIN")
                        .requestMatchers("/appUserRole*").hasRole("ADMIN")
                        .requestMatchers("/exampleOne").hasAuthority("ROLE_USER")
                        .requestMatchers("/exampleTwo").hasAnyAuthority("ROLE_STUDENT", "ROLE_ADMIN")
                        .requestMatchers("/exampleThree").hasRole("STUDENT")
                        .requestMatchers("/login*").anonymous()
                        .requestMatchers("/appUserRest/*").anonymous()
                        .anyRequest().authenticated()
                )
//                .formLogin(form -> form
//                        .permitAll()
//                )
                .formLogin(form -> form
                        .loginPage("/login")
                        .usernameParameter("login")
                        .passwordParameter("password")
                        .failureUrl("/login?error")
                        .defaultSuccessUrl("/", true)
                        .permitAll()
                )
                .exceptionHandling(logout -> logout
                        .accessDeniedPage("/accessDenied")
                )
                .httpBasic();
        return http.build();
    }
}