abstract StatisticBestHand(Array<StatisticCard>) to Array<StatisticCard> {
    private static inline var CARDS_DELIMETER:String = ",";
    private static inline var HAND_CARDS_AMOUNT:Int = 5;

    public inline function new(bestHandRawValue:String) {
        var _bestHand:Array<StatisticCard> = null;
        if (bestHandRawValue != null && bestHandRawValue.length > 3) {
            bestHandRawValue = bestHandRawValue.substring(2, bestHandRawValue.length - 1);
            var cardsIds:Array<Int> = bestHandRawValue.split(CARDS_DELIMETER)
                .map(Std.parseInt)
                .filter(function(value:Null<Int>):Bool return value != null)
                .map(function(value:Null<Int>):Int return value);
            if (cardsIds.length >= HAND_CARDS_AMOUNT) {
                var result:Array<StatisticCard> = [];
                for(i in 0...HAND_CARDS_AMOUNT) {
                    result.push(new StatisticCard(cardsIds[i]));
                }
                _bestHand = result;
            }
        }

        this = _bestHand;
    }
}