var moment = require('moment');
var request = require('request');

var key = '';
var secret = '';
var token = '';



// get key
/*request.post({
    json: true,
    url: 'https://api.twitter.com/oauth2/token?grant_type=client_credentials',
    headers: {
        'User-Agent': 'Trump Feels v0.1',
        'Content-Type': 'application/x-www-form-urlencoded;charset=UTF-8',
        'Authorization': 'Basic ' + new Buffer(key + ':' + secret).toString('base64')
    }
}, function( error, res, body ) {*/

//})

var getTrumpTweets = function( query, callback ) {
    request.get({
        json: true,
        url: 'https://api.twitter.com/1.1/search/tweets.json',
        qs: {
            count: 100,
            q: query// '@realDonaldTrump :( since:2017-1-28'
        },
        headers: {
            'User-Agent': 'Trump Feels v0.1',
            'Authorization': 'Bearer ' + token
        }
    }, function( error, res, body ) {
        callback( false, body.statuses );
    });
}


getTrumpTweets('@realDonaldTrump :(', function( error, sadTweets ) {
    getTrumpTweets('@realDonaldTrump :)', function( error, happyTweets ) {

        var countPC = 0;
        var happyString = happyTweets[happyTweets.length - 1].created_at.replace("+0000 ", "") + " UTC";
        var happyDate = new Date(happyString);

        var sadString = sadTweets[sadTweets.length - 1].created_at.replace("+0000 ", "") + " UTC";
        var sadDate = new Date(sadString);


        var happyDiff = moment().diff(happyDate, 'seconds');
        var sadDiff = moment().diff(sadDate, 'seconds');

        console.log( happyDiff, sadDiff );

        if ( sadDiff > happyDiff ) {
            // more people are positive

            for ( var i in sadTweets ) {
                var time = new Date(sadTweets[i].created_at.replace("+0000 ", "") + " UTC");

                if ( happyDate > time ) {
                    countPC++;
                }
            }

            console.log( (100 - countPC) + '% more positive' );

        } else {
            // more people are happy

            for ( var i in happyTweets ) {
                var time = new Date(happyTweets[i].created_at.replace("+0000 ", "") + " UTC");

                if ( sadDate > time ) {
                    countPC++;
                }
            }

            console.log( (100 - countPC) + '% more negative' );
        }

    });
})