package com.moral.service.impl;

import static com.moral.common.bean.Constants.NULL_VALUE;
import static org.apache.commons.lang3.time.DateUtils.addDays;
import static org.apache.commons.lang3.time.DateUtils.addHours;
import static org.apache.commons.lang3.time.DateUtils.addMinutes;
import static org.apache.commons.lang3.time.DateUtils.addMonths;
import static org.apache.commons.lang3.time.DateUtils.parseDate;
import static org.apache.commons.lang3.time.DateUtils.truncate;
import static org.springframework.util.ObjectUtils.isEmpty;

import java.text.ParseException;
import java.util.Calendar;
import java.util.Collections;
import java.util.Date;
import java.util.HashMap;
import java.util.HashSet;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;

import javax.annotation.Resource;

import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.aggregation.Aggregation;
import org.springframework.data.mongodb.core.aggregation.AggregationResults;
import org.springframework.data.mongodb.core.query.Criteria;
import org.springframework.stereotype.Service;

import com.mongodb.BasicDBObject;
import com.moral.common.exception.BusinessException;
import com.moral.common.util.CalculateUtils;
import com.moral.common.util.ResourceUtil;
import com.moral.common.util.ValidateUtil;
import com.moral.mapper.HistoryMapper;
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 MongoTemplate mongoTemplate;

	@Override
	public Map<String, Object> getAllSensorAverageByDevice(Map<String, Object> parameters) {
		ValidateUtil.notNull(parameters.get("areaCode"), "param.is.null");
		ValidateUtil.notNull(parameters.get("accountId"), "param.is.null");		
		accountService.setOrgIdsByAccount(parameters);
		Date date = new Date();
		// 当前时间 -10分钟
		parameters.put("start", addMinutes(date, -10));
		// 当前时间 -5分钟
		parameters.put("end", 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);
		Date date = new Date();
		// 当前时间 -1小时
		parameters.put("start", addHours(date, -1));
		parameters.put("end", date);
		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;
	}

	@Override
	public Map<String, Object> getDayAQIByDevice(Map<String, Object> parameters) {
		ValidateUtil.notNull(parameters.get("mac"), "param.is.null");
		Map<String, Object> resultMap = new HashMap<String, Object>();
		Date date = new Date();
		// 昨日00:00:00
		parameters.put("start", truncate(addDays(date, -1), Calendar.DATE));
		// 今日00:00:00
		parameters.put("end", truncate(date, Calendar.DATE));
		String[] IAQIValues = ResourceUtil.getArrValue("IAQI");
		Map<String, Double> average = historyMapper.getDayAQIByDevice(parameters);
		if (isEmpty(average)) {
			resultMap.put("AQI", NULL_VALUE);
		} else {
			Set<Double> IAQIs = new HashSet<Double>();
			for (Map.Entry<String, Double> entry : average.entrySet()) {
				double minMacKey = 0, maxMacKey = 0, minIAQI = 0, maxIAQI = 0;
				String[] macKeyValues = ResourceUtil.getArrValue(entry.getKey());
				Double avg = entry.getValue();
				if (isEmpty(avg)) {
					IAQIs.add(null);
				} else {
					int index = -1;
					for (int i = 0; i < macKeyValues.length; i++) {
						if (avg <= Double.valueOf(macKeyValues[i])) {
							if (i == 0) {
								index = i;
							} else {
								index = i - 1;
							}
							break;
						}
					}
					if (index == -1) {
						IAQIs.add(Double.MAX_VALUE);
					} else {
						minMacKey = Double.valueOf(macKeyValues[index]);
						maxMacKey = Double.valueOf(macKeyValues[index + 1]);
						minIAQI = Double.valueOf(IAQIValues[index]);
						maxIAQI = Double.valueOf(IAQIValues[index + 1]);
						Double result = CalculateUtils.calculateIAQI(maxIAQI, minIAQI, maxMacKey, minMacKey, avg);
						IAQIs.add(result);
					}
				}
			}
			IAQIs.remove(null);
			if (isEmpty(IAQIs)) {
				resultMap.put("AQI", NULL_VALUE);
			} else {
				Double AQI = Collections.max(IAQIs);
				if (AQI == Double.MAX_VALUE) {
					resultMap.put("AQI", IAQIValues[IAQIValues.length - 1]);
				} else {
					resultMap.put("AQI", String.format("%.0f", AQI));
				}
			}
		}
		return resultMap;
	}

	@Override
	public Map<String, Object> getMonthAverageBySensor(Map<String, Object> parameters) {
		ValidateUtil.notNull(parameters.get("mac"), "param.is.null");		
		ValidateUtil.notNull(parameters.get("macKey"), "param.is.null");		
		Map<String, Object> result = new HashMap<String, Object>();
		Date date = new Date();
		Long end = truncate(date, Calendar.DATE).getTime(), start;
		// 每月一日的数据取上月的数据
		if (1 == Calendar.getInstance().get(Calendar.DAY_OF_MONTH)) {
			// 上个月1日00:00:00
			start = truncate(addMonths(date, -1), Calendar.MONTH).getTime();
		} else {
			// 这个月1日00:00:00
			start =  truncate(date, Calendar.MONTH).getTime();
		}
		Aggregation aggregation = Aggregation.newAggregation(
				Aggregation.match(Criteria.where("mac").is(parameters.get("mac"))),
				Aggregation.match(Criteria.where("time").gte(start)), 
				Aggregation.match(Criteria.where("time").lt(end)),
				Aggregation.group("mac").avg((String) parameters.get("macKey")).as("average")
		);
		AggregationResults<BasicDBObject> results = mongoTemplate.aggregate(aggregation, "data", BasicDBObject.class);
		List<BasicDBObject> list = results.getMappedResults();
		if (isEmpty(list)) {
			result.put("average", NULL_VALUE);
		} else {
			result = list.get(0);
			result.put("average", String.format("%.2f", result.get("average")));
		}
		return result;
	}

	@Override
	public List<Map<String, Object>> getSensorsAverageByDevice4Report(Map<String, Object> parameters,List<Map<String, Object>> sensors) {
		Object type = parameters.get("type");
		if ("hour".equals(type)) {
			parameters.put("type", "%Y-%m-%d %H:00");
		} else if ("minute".equals(type)) {
			parameters.put("type", "%Y-%m-%d %H:%i:00");
		} else {
			throw new BusinessException("type参数输入错误！");
		}
		
		try {
			Date start = parseDate((String)parameters.get("time"), "yyyy-MM-dd");
			parameters.put("start", start);
			parameters.put("end", addDays(start, 1));
		} catch (ParseException e) {
			e.printStackTrace();
			throw new BusinessException("time参数输入错误！");
		}
		String queryColumns = "";
		for (int i = 0; i < sensors.size(); i++) {
			String sensorKey = (String) sensors.get(i).get("key");
			if (i == sensors.size() - 1) {
				queryColumns += "AVG(value -> '$." + sensorKey + "') " + sensorKey;
			} else {
				queryColumns += "AVG(value -> '$." + sensorKey + "') " + sensorKey +",";
			}
		}
		parameters.put("queryColumns", queryColumns);
		
		return historyMapper.getSensorsAverageByDevice4Report(parameters);
	}

}