/*
 * Copyright 2014-2018 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package de.codecentric.boot.admin;

import de.codecentric.boot.admin.server.config.EnableAdminServer;
import de.codecentric.boot.admin.server.domain.entities.InstanceRepository;
import de.codecentric.boot.admin.server.notify.LoggingNotifier;
import de.codecentric.boot.admin.server.notify.RemindingNotifier;
import de.codecentric.boot.admin.server.notify.filter.FilteringNotifier;

import java.util.concurrent.TimeUnit;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import org.springframework.context.annotation.Profile;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.web.authentication.SavedRequestAwareAuthenticationSuccessHandler;

@Configuration
@EnableAutoConfiguration
@EnableAdminServer
public class SpringBootAdminApplication {
    public static void main(String[] args) {
        SpringApplication.run(SpringBootAdminApplication.class, args);
    }

    @Configuration
    @Profile("insecure")
    public static class SecurityPermitAllConfig extends WebSecurityConfigurerAdapter {
        @Override
        protected void configure(HttpSecurity http) throws Exception {
            http.authorizeRequests().anyRequest().permitAll()//
                .and().csrf().disable();
        }
    }

    @Configuration
    @Profile("secure")
    public static class SecuritySecureConfig extends WebSecurityConfigurerAdapter {
        @Override
        protected void configure(HttpSecurity http) throws Exception {
            // @formatter:off
            SavedRequestAwareAuthenticationSuccessHandler successHandler = new SavedRequestAwareAuthenticationSuccessHandler();
            successHandler.setTargetUrlParameter("redirectTo");

            http.authorizeRequests()
                .antMatchers("/assets/**").permitAll()
                .antMatchers("/login").permitAll()
                .anyRequest().authenticated()
                .and()
            .formLogin().loginPage("/login").successHandler(successHandler).and()
            .logout().and()
            .httpBasic().and()
            .csrf().disable();
            // @formatter:on
        }
    }

    @Configuration
    public static class NotifierConfig {
        private final InstanceRepository repository;

        public NotifierConfig(InstanceRepository repository) {
            this.repository = repository;
        }

        @Bean
        @Primary
        public RemindingNotifier remindingNotifier() {
            RemindingNotifier notifier = new RemindingNotifier(filteringNotifier(), repository);
            notifier.setReminderPeriod(TimeUnit.SECONDS.toMillis(10));
            return notifier;
        }

        @Scheduled(fixedRate = 1_000L)
        public void remind() {
            remindingNotifier().sendReminders();
        }

        @Bean
        public FilteringNotifier filteringNotifier() {
            return new FilteringNotifier(loggerNotifier(), repository);
        }

        @Bean
        public LoggingNotifier loggerNotifier() {
            return new LoggingNotifier(repository);
        }
    }
}
