var config = require('./config');

var moment = require('moment-timezone');

//var a = moment();
// var b = a.format('YYYY-MM-DD');
// var c = a.add(1, 'days').format('YYYY-MM-DD');
// console.log(b);
// console.log(c);
//
// var bb = a.format('YYYY-MM-DD HH:00:00');
// var cc = a.add(1, 'hours').format('YYYY-MM-DD HH:00:00');
// console.log(bb);
// console.log(cc);
//
// console.log("=====================================");
//
// var start = '2017-11-01';
// var end   = '2017-11-30';
//
// var days = moment(end).diff(moment(start), 'days');
// for (var i = 0; i <= days; i++) {
//     //var date = moment(start).add(i, "days").format("YYYY-MM-DD HH:00:00");
//     var date = moment(start).add(i, "days");
//     for(var j = 0; j < 24; j++) {
//         var _start = moment(date).add(j, 'hours').format("YYYY-MM-DD HH:00:00");
//         var _end = moment(date).add(j+1, 'hours').format("YYYY-MM-DD HH:00:00");
//         console.log(_start + " : " + _end);
//     }
// }

var mongoClient = require('mongodb').MongoClient;

mongoClient.connect(config.mongo, {
    poolSize: 10,
    keepAlive: 300000,
    auto_reconnect: true,
    reconnectTries: 1000,
    reconnectInterval: 5000,
    connectTimeoutMS: 30000
}, function(err, client) {
    if (err) {
        console.log(err.message);
        return;
    }
    console.log('Connecting to Mongo DB at ' + config.mongo);

    var db = client.db('monitor');
    const collection = db.collection('data_hourly');

    //moment().utcOffset("-08:00");
    moment.tz.setDefault("Asia/Shang_Hai");

    collection.insertMany([{
        key:1,
        date: moment(new Date().getTime() + 8*60*60*1000).toDate()
    },{
        key:2,
        date: moment(new Date().getTime() + 8*60*60*1000).toDate()
    }], function(err2, doc2) {
        if (err2) {
            return;
        }

        client.close();
    });
});

// var june = moment("2014-06-01T12:00:00Z");
// var a = june.tz('America/Los_Angeles').format('ha z');
// console.log(a)