package com.genersoft.iot.vmp.gb28181.transmit.callback;

import java.util.HashMap;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;

import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Component;
import org.springframework.web.context.request.async.DeferredResult;

/**    
 * @description: 异步请求处理
 * @author: swwheihei
 * @date:   2020年5月8日 下午7:59:05     
 */
@SuppressWarnings(value = {"rawtypes", "unchecked"})
@Component
public class DeferredResultHolder {
	
	public static final String CALLBACK_CMD_DEVICESTATUS = "CALLBACK_DEVICESTATUS";
	
	public static final String CALLBACK_CMD_DEVICEINFO = "CALLBACK_DEVICEINFO";
	
	public static final String CALLBACK_CMD_DEVICECONTROL = "CALLBACK_DEVICECONTROL";
	
	public static final String CALLBACK_CMD_DEVICECONFIG = "CALLBACK_DEVICECONFIG";

	public static final String CALLBACK_CMD_CONFIGDOWNLOAD = "CALLBACK_CONFIGDOWNLOAD";
	
	public static final String CALLBACK_CMD_CATALOG = "CALLBACK_CATALOG";
	
	public static final String CALLBACK_CMD_RECORDINFO = "CALLBACK_RECORDINFO";

	public static final String CALLBACK_CMD_PLAY = "CALLBACK_PLAY";

	public static final String CALLBACK_CMD_PLAYBACK = "CALLBACK_PLAYBACK";

	public static final String CALLBACK_CMD_DOWNLOAD = "CALLBACK_DOWNLOAD";

	public static final String CALLBACK_CMD_STOP = "CALLBACK_STOP";

	public static final String UPLOAD_FILE_CHANNEL = "UPLOAD_FILE_CHANNEL";

	public static final String CALLBACK_CMD_MOBILEPOSITION = "CALLBACK_MOBILEPOSITION";

	public static final String CALLBACK_CMD_PRESETQUERY = "CALLBACK_PRESETQUERY";

	public static final String CALLBACK_CMD_ALARM = "CALLBACK_ALARM";

	public static final String CALLBACK_CMD_BROADCAST = "CALLBACK_BROADCAST";

	private Map<String, Map<String, DeferredResult>> map = new ConcurrentHashMap<>();


	public void put(String key, String id, DeferredResult result) {
		Map<String, DeferredResult> deferredResultMap = map.get(key);
		if (deferredResultMap == null) {
			deferredResultMap = new ConcurrentHashMap<>();
			map.put(key, deferredResultMap);
		}
		deferredResultMap.put(id, result);
	}
	
	public DeferredResult get(String key, String id) {
		Map<String, DeferredResult> deferredResultMap = map.get(key);
		if (deferredResultMap == null) {
			return null;
		}
		return deferredResultMap.get(id);
	}

	public boolean exist(String key, String id){
		if (key == null) {
			return false;
		}
		Map<String, DeferredResult> deferredResultMap = map.get(key);
		if (id == null) {
			return deferredResultMap != null;
		}else {
			return deferredResultMap != null && deferredResultMap.get(id) != null;
		}
	}

	/**
	 * 释放单个请求
	 * @param msg
	 */
	public void invokeResult(RequestMessage msg) {
		Map<String, DeferredResult> deferredResultMap = map.get(msg.getKey());
		if (deferredResultMap == null) {
			return;
		}
		DeferredResult result = deferredResultMap.get(msg.getId());
		if (result == null) {
			return;
		}
		result.setResult(new ResponseEntity<>(msg.getData(),HttpStatus.OK));
		deferredResultMap.remove(msg.getId());
		if (deferredResultMap.size() == 0) {
			map.remove(msg.getKey());
		}
	}

	/**
	 * 释放所有的请求
	 * @param msg
	 */
	public void invokeAllResult(RequestMessage msg) {
		Map<String, DeferredResult> deferredResultMap = map.get(msg.getKey());
		if (deferredResultMap == null) {
			return;
		}
		Set<String> ids = deferredResultMap.keySet();
		for (String id : ids) {
			DeferredResult result = deferredResultMap.get(id);
			if (result == null) {
				return;
			}
			result.setResult(ResponseEntity.ok().body(msg.getData()));
		}
		map.remove(msg.getKey());

	}
}