var getMillis = (date) => {
    if (date == null) { return 0; }
    if (date instanceof java.util.Date) {
        return date.getTime();
    }
    return date;
};

var formatDuration = (date) => {
    var millis = getMillis(date);
    var diffMillis = $$.date().millis() - millis;
    if (diffMillis < 3000) {
        return 'just now';
    }
    var secs = $$.num(diffMillis).divr(1000, 0, null).along();
    if (secs < 60) {
        return secs + 's';
    }
    var mins = $$.num(secs).divr(60, 0, null).along();
    if (mins < 60) {
        return mins + 'm';
    }
    var hours = $$.num(mins).divr(60, 0, null).along();
    if (hours < 24) {
        return hours + 'h';
    }
    var days = $$.num(hours).divr(24, 0, null).along();
    if (days < 31) {
        return days + 'd';
    }
    return $$.date().fmt('yyyy-MM-dd').format(new java.util.Date(millis));
};


var formatDueInDays = (date) => {
    var millis = getMillis(date);
    var diffMillis = millis - $$.date().millis();
    var isMinus = diffMillis < 0;
    if (isMinus) {
        diffMillis = -diffMillis;
    }
    var prefix = isMinus ? '-' : '';
    var secs = $$.num(diffMillis).divr(1000, 0, null).along();
    if (secs < 60) {
        return 'in ' + prefix + secs + 's';
    }
    var mins = $$.num(secs).divr(60, 0, null).along();
    if (mins < 60) {
        return 'in ' + prefix + secs + 'm';
    }
    var hours = $$.num(mins).divr(60, 0, null).along();
    if (hours < 24) {
        return 'in ' + prefix + hours + 'h';
    }
    var days = $$.num(hours).divr(24, 0, null).along();
    if (days < 31) {
        return 'in ' + prefix + days + 'd';
    }
    return $$.date().fmt('yyyy-MM-dd').format(new java.util.Date(millis));
};

if (typeof exports == 'object') {
    exports.getMillis = getMillis;
    exports.formatDuration = formatDuration;
    exports.formatDueInDays = formatDueInDays;
}