package org.springblade.common.handler;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import com.corundumstudio.socketio.*;
import com.corundumstudio.socketio.annotation.OnConnect;
import com.corundumstudio.socketio.annotation.OnDisconnect;
import com.corundumstudio.socketio.annotation.OnEvent;
import com.corundumstudio.socketio.protocol.Packet;
import org.springblade.core.tool.api.R;
import org.springblade.modules.modules.entity.FunctionEntity;
import org.springblade.modules.modules.service.IFunctionService;
import org.springblade.modules.modules.vo.FunctionVO;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.CommandLineRunner;
import org.springframework.core.annotation.Order;
import org.springframework.stereotype.Component;
import com.corundumstudio.socketio.SocketIOServer;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import javax.annotation.PostConstruct;
import javax.annotation.PreDestroy;
import java.net.ServerSocket;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import java.util.function.BiConsumer;


/**
 * SocketIo启动类
 */
@Component
@Order(value = 1)
public class SocketIOService {

	private final Logger log = LoggerFactory.getLogger(this.getClass());

	// 用来存已连接的客户端
	private static Map<String, SocketIOClient> clientMap = new ConcurrentHashMap<>();

	// 用来存已连接的视图客户端
	private List<Map<String, SocketIOClient>> view = new ArrayList<>();

	// 用来存已连接的控制客户端
	private List<Map<String, SocketIOClient>> controller = new ArrayList<>();

	@Autowired
	private SocketIOServer socketIOServer;

	@Autowired
	private IFunctionService functionService;

	/**
	 * Spring IoC容器创建之后，在加载SocketIOConfiguration Bean之后启动
	 *
	 * @throws Exception
	 */
	@PostConstruct
	private void autoStartup() throws Exception {
		start();
	}

	/**
	 * Spring IoC容器在销毁SocketIOConfiguration Bean之前关闭,避免重启项目服务端口占用问题
	 *
	 * @throws Exception
	 */
	@PreDestroy
	private void autoStop() throws Exception {
		stop();
	}

	public void start() {
		socketIOServer.start();
		log.info("socket.io初始化服务完成");
	}

	/**
	 * 连接时
	 * @param client
	 */
	@OnConnect
	public void onConnect(SocketIOClient client){
		FunctionVO functionEntity = getFuncVo(client);

		//判断页面和控制器是否已经连接过了
		if (functionEntity.getIsView()){
			for (int i = 0; i < view.size(); i++) {
				if (view.get(i).containsKey(functionEntity.getModulesId())){
					client.sendEvent("connectError",R.fail("已连接"));
					return;
				}
			}
		}else {
			for (int i = 0; i < controller.size(); i++) {
				if (controller.get(i).containsKey(functionEntity.getModulesId())){
					client.sendEvent("connectError",R.fail("已连接"));
					return;
				}
			}
		}

		List<FunctionEntity> all = functionService.getAll(functionEntity);
		log.info(client.getSessionId().toString());
		if (all.size()>0){
			clientMap.put(functionEntity.getModulesId(),client);
			if (functionEntity.getIsView()){
					view.add(clientMap);
			}else {
					controller.add(clientMap);
			}
			client.sendEvent("connectOk", R.data(all));
		}else {
			client.sendEvent("connectError",R.fail("连接失败"));
		}
	}

	/**
	 * 监听前端订阅相同事件发送过来的信息
	 * @param client
	 * @param ackRequest
	 * @param data
	 */
	@OnEvent(value = "msg")
	public void OnEvent(SocketIOClient client, AckRequest ackRequest, String data){
		log.info("发来消息：" + data);
	}

	/**
	 * 监听前端订阅相同事件发送过来的信息
	 * @param client
	 * @param ackRequest
	 * @param data
	 */
	@OnEvent(value = "changeImgPage")
	public void OnEventImgChange(SocketIOClient client, AckRequest ackRequest, String data){
		log.info("图册变更：" + data);
		FunctionVO funcVo = getFuncVo(client);
		view.forEach(e->{
			if (data.equals("previous")){
				e.get(funcVo.getModulesId()).sendEvent("previousPage","previous");
			}else if (data.equals("next")){
				e.get(funcVo.getModulesId()).sendEvent("nextPage","next");
			}
		});
	}

	@OnEvent(value = "menuChange")
	public void OnEventMenuChange(SocketIOClient client, AckRequest ackRequest, String data){
		log.info("菜单变更：" + data);
		FunctionVO funcVo = getFuncVo(client);
		view.forEach(e->{
			e.get(funcVo.getModulesId()).sendEvent("menuChange",data);
		});
	}

	/**
	 * 断开连接时
	 * @param client
	 */
	@OnDisconnect()
	public void OnEvent(SocketIOClient client){


		FunctionVO funcVo = getFuncVo(client);
		if (funcVo.getIsView()){
			for (int i = 0; i <=view.size() ; i++) {
				if (view.get(i).containsKey(funcVo.getModulesId())) {
					view.remove(i);
				}
			}
		}else {
			for (int i = 0; i <=controller.size() ; i++) {
				if (controller.get(i).containsKey(funcVo.getModulesId())) {
					controller.remove(i);
				}
			}
		}
		log.info("{}断开连接",client.getSessionId());
	}

	public void stop() {
		if (socketIOServer != null) {
			socketIOServer.stop();
			socketIOServer = null;
		}
		log.info("socket.io服务已关闭");
	}

	/**
	 * 此方法为获取client连接中的参数，可根据需求更改
	 *
	 * @param client
	 * @return
	 */
	private String getParamsByClient(SocketIOClient client) {
		// 从请求的连接中拿出参数（这里的sid必须是唯一标识）
		Map<String, List<String>> params = client.getHandshakeData().getUrlParams();
		List<String> list = params.get("UID");
		if (list != null && list.size() > 0) {
			return list.get(0);
		}
		return null;
	}

	/**
	 * 获取连接的客户端ip地址
	 *
	 * @param client: 客户端
	 * @return: java.lang.String
	 */
	private String getIpByClient(SocketIOClient client) {
		String sa = client.getRemoteAddress().toString();
		return sa.substring(1, sa.indexOf(":"));
	}

	private FunctionVO getFuncVo(SocketIOClient client){
		String connectInfo = client.getHandshakeData().getSingleUrlParam("connectInfo");
		return JSON.parseObject(connectInfo, FunctionVO.class);
	}


}