/*
 * Copyright 2002-2015 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 playground;

import java.util.HashMap;
import java.util.Map;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.autoconfigure.data.mongo.MongoDataAutoConfiguration;
import org.springframework.boot.autoconfigure.mongo.MongoAutoConfiguration;
import org.springframework.context.annotation.Bean;
import org.springframework.web.reactive.HandlerMapping;
import org.springframework.web.reactive.config.CorsRegistry;
import org.springframework.web.reactive.config.EnableWebReactive;
import org.springframework.web.reactive.config.WebReactiveConfigurer;
import org.springframework.web.reactive.handler.SimpleUrlHandlerMapping;
import org.springframework.web.reactive.socket.WebSocketHandler;
import org.springframework.web.reactive.socket.server.WebSocketService;
import org.springframework.web.reactive.socket.server.support.HandshakeWebSocketService;
import org.springframework.web.reactive.socket.server.support.WebSocketHandlerAdapter;
import org.springframework.web.reactive.socket.server.upgrade.ReactorNettyRequestUpgradeStrategy;

/**
 * @author Sebastien Deleuze
 */
@SpringBootApplication
@EnableWebReactive
@EnableAutoConfiguration(exclude={MongoAutoConfiguration.class, MongoDataAutoConfiguration.class})
public class Application implements WebReactiveConfigurer {

	public static void main(String[] args) throws Exception {
		SpringApplication.run(Application.class, args);
	}

	@Override
	public void addCorsMappings(CorsRegistry registry) {
		registry.addMapping("/cors/config");
	}

	@Bean
	public HandlerMapping handlerMapping() {

		Map<String, WebSocketHandler> map = new HashMap<>();
		map.put("/websocket/echo", new EchoWebSocketHandler());

		SimpleUrlHandlerMapping mapping = new SimpleUrlHandlerMapping();
		mapping.setUrlMap(map);
		return mapping;
	}

	@Bean
	public WebSocketHandlerAdapter handlerAdapter() {
		return new WebSocketHandlerAdapter(webSocketService());
	}

	@Bean
	public WebSocketService webSocketService() {
		return new HandshakeWebSocketService(new ReactorNettyRequestUpgradeStrategy());
	}
}