package app.config;

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.beans.factory.annotation.Autowired;
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.authentication.builders.AuthenticationManagerBuilder;
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.core.Authentication;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.web.authentication.AuthenticationSuccessHandler;
import org.springframework.security.web.util.matcher.AntPathRequestMatcher;

import app.usluga.KorisnickaUsluga;

@Configuration
@EnableWebSecurity
public class Bezbednost extends WebSecurityConfigurerAdapter {

	@Autowired
	private KorisnickaUsluga ku;
	
	@Bean
    public BCryptPasswordEncoder enkoder() {
        return new BCryptPasswordEncoder();
    }
	
	@Bean
    public DaoAuthenticationProvider autentifikacija() {
        DaoAuthenticationProvider a = new DaoAuthenticationProvider();
        a.setUserDetailsService(ku);
        a.setPasswordEncoder(enkoder());
        return a;
    }
	
	@Override
    protected void configure(AuthenticationManagerBuilder b) throws Exception {
        b.authenticationProvider(autentifikacija());
    }
	
	@Override
	protected void configure(HttpSecurity http) throws Exception {
		http.authorizeRequests().antMatchers(
				 "/registration**",
	                "/js/**",
	                "/css/**",
	                "/img/**").permitAll();
		
		http.formLogin().successHandler(new AuthenticationSuccessHandler() {
		    @Override
		    public void onAuthenticationSuccess(HttpServletRequest request, HttpServletResponse response, Authentication authentication) throws IOException, ServletException {
		       //do nothing
		    }
		})
		//.anyRequest().authenticated()
		.and()
		.formLogin()
		.loginPage("/login")
		.defaultSuccessUrl("/", true)
		.permitAll()
		.and()
		.logout()
		.invalidateHttpSession(true)
		.clearAuthentication(true)
		.logoutRequestMatcher(new AntPathRequestMatcher("/logout"))
		.logoutSuccessUrl("/")
		.permitAll();
	}

}
