Softuni JS Basics Problem 4.js

function problem4(input) {
	var matches = [],
		players = [];

	// create matches from input
	for (var i = input.length - 1; i >= 0; i--) {
		var line = input[i];
		var match = {
			playerA: getFirstPlayer(line),
			playerB: getSecondPlayer(line),
			score: getScore(line),
			result: null,
		};

		match.result = getMatchResult(match);
		matches.push(match);
	};

	// create players from matches
	var playerNames = getPlayersNames(matches);
	for (var i = playerNames.length - 1; i >= 0; i--) {
		var playerName = playerNames[i];
		var player = {
			name: playerName,
			matchesWon: getPlayerMatchesWon(playerName, matches),
			setsWon: getPlayerSetsWon(playerName, matches),
			gamesWon: getPlayerGamesWon(playerName, matches)
		};
		players.push(player);
	};

	// sort players by matches, sets, games and name
	players.sort(comparePlayers);
	// console.log(players);
	console.log(JSON.stringify(players));
	// for (var i = 0; i < players.length; i++) {
	// 	console.log(JSON.stringify(players[i]));
	// };

};

var comparePlayers = function (a, b) {
	if (a.matchesWon > b.matchesWon) return -1;
	if (a.matchesWon < b.matchesWon) return 1;
	if (a.matchesWon == b.matchesWon) {
		if (a.setsWon > b.setsWon) return -1;
		if (a.setsWon < b.setsWon) return 1;
		if (a.setsWon == b.setsWon) {
			if (a.gamesWon > b.gamesWon) return -1;
			if (a.gamesWon < b.gamesWon) return 1;
			if (a.gamesWon == b.gamesWon) {
				if (a.name < b.name) return -1;
				if (a.name > b.name) return 1;
			}
		}
	}
}

var getPlayersNames = function (matches) {
	var players = [];
	for (var i = matches.length - 1; i >= 0; i--) {
		var match = matches[i];
		if (players.indexOf(match.playerA) === -1) {
			players.push(match.playerA);
		}
		if (players.indexOf(match.playerB) === -1) {
			players.push(match.playerB);
		}
	};
	return players;
}

var getFirstPlayer = function (line) {
	var matched = line.match(/^\s*(\w+)\s*(\w+)/);
	return matched[1] +' '+ matched[2];
};

var getSecondPlayer = function (line) {
	var matched = line.match(/\.\s*(\w+)\s+(\w+)/);
	return matched[1] +' '+ matched[2];
}

var getScore = function (line) {
	var matched = line.match(/\d+-\d+/g);
	return matched;
}

var getMatchResult = function (match) {
	var aSets = 0;
	var bSets = 0;
	for (var i = match.score.length - 1; i >= 0; i--) {
		var set = match.score[i];
		var setResult = getSetResult(set);
		if (setResult === -1) 	bSets++;
		if (setResult === 1) 	aSets++;
	};

	if (aSets > bSets) return 1;
	if (aSets < bSets) return -1;
}

var getSetResult = function (set) {
	var split = set.split('-');
	var a = parseInt(split[0]);
	var b = parseInt(split[1]);
	if (a < b) return -1;
	if (a > b) return 1;
};

var getPlayerMatchGamesWon = function (playerName, match) {
	var setsWon = 0;
	for (var i = match.score.length - 1; i >= 0; i--) {
		var set = match.score[i];
		var setResult = getSetResult(set);
		if (setResult === 1 && match.playerA === playerName) {
			setsWon += parseInt(set.split('-')[0]);
		}
		if (setResult === -1 && match.playerB === playerName) {
			setsWon += parseInt(set.split('-')[1]);
		}
	};

	return setsWon;
}

var getPlayerMatchesWon = function (playerName, matches) {
	var matchesWon = 0;
	for (var i = matches.length - 1; i >= 0; i--) {
		var match = matches[i];
		if (match.playerA === playerName && match.result === 1) {
			matchesWon++
		};
		if (match.playerB === playerName && match.result === -1) {
			matchesWon++
		};
	};

	return matchesWon;
}

var getPlayerMatchSetsWon = function (playerName, match) {
	var matchSetsWon = 0;
	for (var i = match.score.length - 1; i >= 0; i--) {
		var set = match.score[i];
		var setResult = getSetResult(set);
		if (setResult == 1 && playerName == match.playerA) {
			matchSetsWon++;
		};
		if (setResult == -1 && playerName == match.playerB) {
			matchSetsWon++;
		};
	};
	return matchSetsWon;
}

var getPlayerSetsWon = function (playerName, matches) {
	var setsWon = 0;
	for (var i = matches.length - 1; i >= 0; i--) {
		var match = matches[i];
		var matchSetsWon = getPlayerMatchSetsWon(playerName, match);
		setsWon += matchSetsWon;
	};

	return setsWon;
}

var getPlayerGamesWon = function (playerName, matches) {
	var gamesWon = 0;
	for (var i = matches.length - 1; i >= 0; i--) {
		var match = matches[i];
		var matchGamesWon = getPlayerMatchGamesWon(playerName, match);
		gamesWon += matchGamesWon;
	};

	return gamesWon;
}

var input = [
	'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'
];
problem4(input);