package com.moral.service.impl;

import java.math.BigDecimal;
import java.math.RoundingMode;
import java.time.LocalDateTime;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.concurrent.Callable;
import java.util.concurrent.CompletionService;
import java.util.concurrent.ExecutorCompletionService;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

import javax.annotation.Resource;

import org.springframework.stereotype.Service;

import com.moral.common.util.ValidateUtil;
import com.moral.mapper.DeviceMapper;
import com.moral.mapper.HistoryMapper;
import com.moral.mapper.SensorMapper;
import com.moral.service.AccountService;
import com.moral.service.HistoryService;

@Service
public class HistoryServiceImpl implements HistoryService {

	@Resource
	private AccountService accountService;

	@Resource
	private HistoryMapper historyMapper;

	@Resource
	private DeviceMapper deviceMapper;

	@Resource
	private SensorMapper sensorMapper;

	@Override
	public Map<String, Object> getAllSensorAverageByDevice(Map<String, Object> parameters) throws Exception {
		ValidateUtil.notNull(parameters.get("areaCode"), "param.is.null");
		ValidateUtil.notNull(parameters.get("accountId"), "param.is.null");
		Map<String, Number[]> result = new HashMap<String, Number[]>();
		Map<String,Object> resultMap = new HashMap<String, Object>();
		accountService.setOrgIdsByAccount(parameters);
		LocalDateTime time = LocalDateTime.now();
		// 当前时间 -10分钟
		parameters.put("start", time.minusMinutes(10));
		// 当前时间 -5分钟
		parameters.put("end", time.minusMinutes(5));
		parameters.put("macKey", "all");
		List<Integer> deviceVersionIds = deviceMapper.getDeviceVersionIdByAreaCode(parameters);
		ExecutorService threadPool = Executors.newCachedThreadPool();
		CompletionService<Map<String, Object>> cs = new ExecutorCompletionService<Map<String, Object>>(threadPool);
		for (Integer deviceVersionId : deviceVersionIds) {
			Map<String, Object> parameter = new HashMap<String, Object>(parameters);
			String queryColumns = "";
			List<Map<String, Object>> sensors = sensorMapper.getSensorsByDeviceVersionId(deviceVersionId);
			for (int i = 0; i < sensors.size(); i++) {
				String sensorKey = (String) sensors.get(i).get("sensor_key");
				queryColumns += "AVG(value -> '$." + sensorKey + "') " + sensorKey;
				if (i != sensors.size() - 1) {
					queryColumns += " ,";
				} 
			}
			parameter.put("queryColumns", queryColumns);
			parameter.put("deviceVersionId", deviceVersionId);
			cs.submit(new Callable<Map<String, Object>>() {
				@Override
				public Map<String, Object> call() throws Exception {
					Map<String, Object> map = new HashMap<String, Object>();
					List<Map<String, Object>> list = historyMapper.getAreaAllDataByAccount(parameter);
					map.put(deviceVersionId.toString(), list.get(0));
					return map;
				}
			});
		}
		List<Map<String, Object>> list = new ArrayList<Map<String,Object>>();
		for (Integer deviceVersionId : deviceVersionIds) {
			list.add(cs.take().get());
		}
		
		for (Map<String, Object> map : list) {
			Collection<Object> values = map.values();
			for (Object object : values) {
				Map<String, Object> result1 = (Map<String, Object>)object;
				for (String key : result1.keySet()) {
					Number[] numbers = new Number[2];
					Double sum = (Double) result1.get(key);
					Integer count = 1;
					if (result.containsKey(key)) {
						numbers = result.get(key);
						sum += (Double)numbers[0];
						count += (Integer)numbers[1];
					}
					numbers[0] = sum;
					numbers[1] = count;
					result.put(key, numbers);
					resultMap.put(key, new BigDecimal(sum / count).setScale(3, RoundingMode.HALF_UP).doubleValue());
				}
			}
		}

		return resultMap;
		/*Date date = new Date();
		// 当前时间 -10分钟
		parameters.put("start", DateUtils.addMinutes(date, -10));
		// 当前时间 -5分钟
		parameters.put("end", DateUtils.addMinutes(date, -5));
		String queryColumns = "";
		for (int i = 1; i < 20; i++) {
			if (i == 1) {
				queryColumns += "AVG(value -> '$.e" + i + "') e" + i;
			} else {
				queryColumns += " , AVG(value -> '$.e" + i + "') e" + i;
			}
		}
		parameters.put("queryColumns", queryColumns);
		parameters.put("macKey", "all");
		List<Map<String, Object>> list = historyMapper.getAreaAllDataByAccount(parameters);

		return list.get(0);*/

	}

	@Override
	public Map<String, Object> getDeviceRankingBySensorAverage(Map<String, Object> parameters) {
		ValidateUtil.notNull(parameters.get("areaCode"), "param.is.null");
		ValidateUtil.notNull(parameters.get("accountId"), "param.is.null");
		ValidateUtil.notNull(parameters.get("macKey"), "param.is.null");

		Map<String, Object> result = new LinkedHashMap<String, Object>();
		accountService.setOrgIdsByAccount(parameters);
		LocalDateTime time = LocalDateTime.now();
		// 当前时间 -1小时
		parameters.put("start", time.minusHours(1));
		parameters.put("end", time);
		parameters.put("macKey", "'$." + parameters.get("macKey") + "'");
		List<Map<String, Object>> list = historyMapper.getAreaAllDataByAccount(parameters);

		for (Map<String, Object> map : list) {
			result.put((String) map.get("name"), map.get("avg"));
		}
		return result;
	}


}