ESPN Pick'em Bot

snippet.js

(function () {
    window._benbot = window._benbot || {};
    var config = {
        method: window._benbot.method || 100,
        submission: window._benbot.submission || false,
        diff: window._benbot.diff || 20
    };
    
    function r (n) { n = n || 35; return Math.floor(Math.random() * n) }
 
    function Match (away, home) {
        this.away = away;
        this.home = home;
    }
    
    Match.prototype.method = function () {
        /* config.method is a int between 0 and 100, which determined the chance to choose the
           winner randomly or depending on the percentage. */
        var n = r(100/config.method);
        /*  config.diff is forcing the method to be random if the difference between the two percentages
            is close (the definition of close is the value of config.diff) */
        if (config.diff && Math.abs(this.home.percentage - this.away.percentage) <= config.diff) {
            n = 1;
        }
        return (n === 0) ? 'percent' : 'random';
    };

    Match.prototype.winner = function () {
        var method = this.method();

        if (method === 'random') {
            if (typeof this._winner === 'undefined') {
                this._winner = (r(2) === 0) ? 'home' : 'away';
            }
            return this._winner;
        } else {
            if (this.home.percentage >= this.away.percentage) {
                return 'home';
            }
            return 'away';
        }   
    };
    Match.prototype.pick = function () {
        this[this.winner()].check();
    };
    
    Match.prototype.score = function () {
        var score = {},
            winner = this.winner(),
            other = (winner === "home") ? "away" : "home";   
        do {
            score = {
                away: r(),
                home: r()
            }
        } while (score[winner] <= score[other]);
        return score;
    };

    function Team(node) {
        this.name = node.find('.pickem-teamName a').text();
        this.percentage = parseFloat(node.find('.games-greenbar-pickem').attr('title'));
        this.checkbox = node.find('.entryPick');
    }
    Team.prototype.check = function () {
        console.log(this.toString());
        this.checkbox.trigger('click')
    };
    Team.prototype.toString = function () {
        return this.name + ' (' + this.percentage + ')';
    };


    // Pick winning team for each match
    var teams = jQuery('tr.matchupRow');
    window.matches = [];

    for (var i = 0; i < teams.length - 1; i += 2) {
        var node = {
            away: jQuery(teams[i]),
            home: jQuery(teams[i + 1])
        };

        var away = new Team(node.away),
            home = new Team(node.home),
        
            match = new Match(away, home);
        
        window.matches.push(match);
    }

    window.matches.forEach(function (m) {
        window.setTimeout(function () {
            m.pick();
        }, 1);
    });

    // Update Tiebreaker final score
    var form = jQuery('form[name=pickemForm]'),
        inputs = form.find('input.tieBreaker'),
        tieBreaker = matches[matches.length - 1];

    var score = tieBreaker.score();

    jQuery(inputs.get(0)).val(score.away);
    jQuery(inputs.get(1)).val(score.home);

    if (config.submission) {
        window.onbeforeunload = undefined;
        form.find('.submit-button:not(.disabled)').trigger('click');
    }
    
})()