hockeybar/lib/parsers/teamStats.js

A bot used to automate the updating of hockey league subreddit markdown

const request = require("request");
const jsdom = require("jsdom");
const {
    JSDOM
} = jsdom;
const cheerio = require('cheerio');

const teams = require('../teams');

var TeamStatsBuilder = class TeamStatsBuilder {
    constructor(team) {
        this.team = team;

        var currentDate = new Date();

        var comparisonMonth = currentDate.getMonth() + 1;
        var comparisonDay = currentDate.getDate();
        var comparisonYear = currentDate.getFullYear();

        this.isPreSeason = true;

        if(comparisonMonth === 10 && comparisonDay === 4 && comparisonYear === 2017){
            this.isPreSeason = false;
        }
        
    }
    parseStandingsStats(data, grouping) {
        var divisionMapping = {
            "PACIFIC": 15
        }
        var conferenceMapping = {
            "EAST": this.isPreSeason === true ? 7 : 3,
            "WEST": this.isPreSeason === true ? 3 : 7
        }

        var statsIndex = 0;
        switch (grouping) {
            case 1:
                statsIndex = divisionMapping[this.team.division];
                break;
            case 2:
                statsIndex = conferenceMapping[this.team.conference];
                break;
        }

        var teamStats = [];

        var $ = cheerio.load(data);
        var statsTable = $('.wisbb_standardTable');

        var desiredStatsTable = statsTable[0].children[statsIndex];

        var rank = 1;
        for (var i = 0; i < desiredStatsTable.children.length; i++) {
            if (i % 2 != 0) {
                var teamStatsRow = desiredStatsTable.children[i];
                var teamHref = teamStatsRow.children[1].children[1].attribs.href.split("/nhl/")[1];
                var teamKey = teamHref.substr(0, teamHref.length - 5);
                var team = teams[teamKey];

                team.type = 'team';
                team.rank = rank;
                team.w = teamStatsRow.children[3].children[0].data
                team.l = teamStatsRow.children[5].children[0].data
                team.otl = teamStatsRow.children[7].children[0].data
                team.pts = teamStatsRow.children[9].children[0].data
                team.gp = teamStatsRow.children[11].children[0].data

                teamStats.push(team);

                rank++;
            }

        }

        return teamStats;
    }
    parse(grouping = 1) {
        return new Promise((resolve, reject) => {
            this.getStats(grouping).then((data) => {
                let stats = this.parseStandingsStats(data, grouping);
                resolve(stats);
            });
        });
    }
    getStats(grouping) {
        return new Promise((resolve, reject) => {
            request({
                uri: `http://www.foxsports.com/nhl/standings?season=2017&seasonType=${this.isPreSeason === true ? 3 : 1}&grouping=${grouping}`
            }, function (error, response, body) {
                if (error && response.statusCode !== 200) {
                    console.log('Error when contacting server')
                }
                var virtualConsole = new jsdom.VirtualConsole();
                var dom = new JSDOM(body, virtualConsole);
                resolve(dom.serialize());
            });
        });
    }
    buildStats(stats) {
        return new Promise((resolve, reject) => {
            var statsMarkdown = '| # | Team | GP | W | L | OTL | PTS |\n|---|------|--------|----|---|---|---|\n';
            for (var i = 0; i < stats.length; i++) {
                statsMarkdown = statsMarkdown + this.buildTeamStatsMarkdown(stats[i]);
            }
            resolve(statsMarkdown);
        });
    }
    buildTeamStatsMarkdown(team) {
        var markdown = `|${team.rank}|[](/r/${team.subreddit})|${team.gp}|${team.w}|${team.l}|${team.otl}|${team.pts}|\n`;
        return markdown;
    }
}

module.exports = TeamStatsBuilder;