Exams - Rolland Garros

"use strict";

function solve(args) {
    var playersArr, object, pattern, key;

    object = {};
    pattern = /(.+?)\s?vs\.\s?(.+?)\s?\:\s?([\d\s-]+)/g;
    args.forEach(function (input) {
        var matcher, pl1, pl2, results;

        input = input.replace(/\s+/g, ' ');
        while (matcher = pattern.exec(input)) {
            pl1 = matcher[1];
            pl2 = matcher[2];
            results = matcher[3].split(/\s+/);
        }

        buildObjectPlayer(pl1, results, object, true);
        buildObjectPlayer(pl2, results, object, false);
    });

    playersArr = [];
    for (key in object) {
        if (object.hasOwnProperty(key)) {
            playersArr.push(object[key]);
        }
    }

    playersArr.sort(function (obj1, obj2) {
        return (obj2.matchesWon !== obj1.matchesWon) ? obj2.matchesWon - obj1.matchesWon
            : (obj2.setsWon !== obj1.setsWon) ? obj2.setsWon - obj1.setsWon
            : (obj2.gamesWon !== obj1.gamesWon) ? obj2.gamesWon - obj1.gamesWon
            : obj1.name.localeCompare(obj2.name);
    });

    console.log(JSON.stringify(playersArr));

    function buildObjectPlayer(playerName, resultsArr, object, isFirstPl) {
        var setWins, setLost;

        if (!(playerName in object)) {
            object[playerName] = {
                'name': playerName, 'matchesWon': 0, 'matchesLost': 0, 'setsWon': 0,
                setsLost: 0, 'gamesWon': 0, 'gamesLost': 0
            };
        }

        setWins = 0;
        setLost = 0;
        resultsArr.forEach(function (set) {
            set = set.split('-');
            if ((isFirstPl && parseInt(set[0]) > parseInt(set[1])) ||
                (!isFirstPl && parseInt(set[0]) < parseInt(set[1]))) {
                setWins += 1;
            } else {
                setLost += 1;
            }

            if (isFirstPl) {
                object[playerName].gamesWon += parseInt(set[0]);
                object[playerName].gamesLost += parseInt(set[1]);
            } else {
                object[playerName].gamesWon += parseInt(set[1]);
                object[playerName].gamesLost += parseInt(set[0]);
            }
        });

        if (setWins > setLost) {
            object[playerName].matchesWon += 1;
        } else {
            object[playerName].matchesLost += 1;
        }

        object[playerName].setsWon += setWins;
        object[playerName].setsLost += setLost;
    }
}

solve([
    'Novak Djokovic vs. Roger Federer : 6-3 6-3',
    'Roger    Federer    vs.        Novak Djokovic    :         6-2 6-3',
    'Rafael Nadal vs. Andy Murray : 4-6 6-2 5-7',
    'Andy Murray vs. David Ferrer : 6-4 7-6',
    'Tomas Bedrych vs. Kei Nishikori : 4-6 6-4 6-3 4-6 5-7',
    'Grigor Dimitrov vs. Milos Raonic : 6-3 4-6 7-6 6-2',
    'Pete Sampras vs. Andre Agassi : 2-1',
    'Boris Beckervs.Andre                   Agassi:2-1']);