whistle.statistics/lib/uiServer/cgi-bin/getDayData.js

statistics for whistle.nohost

//统计每天的图表数据
const {loadCollection, dbRead} = require('../../db');
const util = require("../../util");
const days = 7; // 统计7天的



module.exports = async (ctx) => {
    let timeStamp = new Date(new Date().setHours(0, 0, 0, 0)).getTime(); // 当天24点的时间戳
    let startTime = timeStamp - (days - 1) * 86400 * 1000;
    let pvCollection = await loadCollection('pv', dbRead);
    let pvData = pvCollection.find({'time': {'$gt': startTime}});

    let result = {};

    if (pvData && pvData.length > 0) {
        for (let i = 0, len = pvData.length; i < len; i++) {
            let item = pvData[i];
            let time = util.formatTime(parseInt(item['time']) ,'hh:mm');
            let day = util.formatTime(item['time'], 'yyyyMMdd');
            if (!result[time]) {
                result[time] = {}
            }
            result[time][day] = (result[time][day] ? result[time][day] : 0) + item['value']; // 按日统计
        }
    }

    console.log("result:" , result);

    let chartData = {} ;
    let rows = [] ;
    let columns = ['time'] ;
    for(let i = 0 ; i < days ; i++){
        columns.push(util.formatTime(startTime + i * 86400 * 1000, 'yyyyMMdd'));
    }
    for(let time in result){
        let chartDataItem = {
            time : time
        };
        chartDataItem["index"] = new Date(`2018-01-01 ${time}`).getTime();
        let dayData = result[time];
        for(let day in dayData){
            chartDataItem[day] =  dayData[day];
        }
        rows.push(chartDataItem);
    }
    rows = rows.sort(util.sort("index"));
    chartData['columns'] = columns ;
    chartData['rows'] = rows ;
    ctx.body = chartData;

};