const DISCOUNT = [{"depart": 1, "country": 2, "oper": 13, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 5, "country": 2, "oper": 13, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 23, "country": 2, "oper": 13, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 3, "country": 2, "oper": 13, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 10, "country": 2, "oper": 13, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 11, "country": 2, "oper": 13, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 12, "country": 2, "oper": 13, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 9, "country": 2, "oper": 13, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 21, "country": 2, "oper": 13, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 2, "country": 2, "oper": 13, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 18, "country": 2, "oper": 13, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 7, "country": 2, "oper": 13, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 56, "country": 2, "oper": 13, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 14, "country": 2, "oper": 13, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 4, "country": 2, "oper": 13, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 20, "country": 2, "oper": 13, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 6, "country": 2, "oper": 13, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 1, "country": 2, "oper": 25, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 5, "country": 2, "oper": 25, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 23, "country": 2, "oper": 25, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 3, "country": 2, "oper": 25, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 10, "country": 2, "oper": 25, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 11, "country": 2, "oper": 25, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 12, "country": 2, "oper": 25, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 9, "country": 2, "oper": 25, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 21, "country": 2, "oper": 25, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 2, "country": 2, "oper": 25, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 18, "country": 2, "oper": 25, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 7, "country": 2, "oper": 25, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 56, "country": 2, "oper": 25, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 14, "country": 2, "oper": 25, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 4, "country": 2, "oper": 25, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 20, "country": 2, "oper": 25, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 6, "country": 2, "oper": 25, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 1, "country": 2, "oper": 11, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 5, "country": 2, "oper": 11, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 23, "country": 2, "oper": 11, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 3, "country": 2, "oper": 11, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 10, "country": 2, "oper": 11, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 11, "country": 2, "oper": 11, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 12, "country": 2, "oper": 11, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 9, "country": 2, "oper": 11, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 21, "country": 2, "oper": 11, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 2, "country": 2, "oper": 11, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 18, "country": 2, "oper": 11, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 7, "country": 2, "oper": 11, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 56, "country": 2, "oper": 11, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 14, "country": 2, "oper": 11, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 4, "country": 2, "oper": 11, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 20, "country": 2, "oper": 11, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 6, "country": 2, "oper": 11, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 1, "country": 2, "oper": 16, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 5, "country": 2, "oper": 16, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 23, "country": 2, "oper": 16, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 3, "country": 2, "oper": 16, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 10, "country": 2, "oper": 16, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 11, "country": 2, "oper": 16, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 12, "country": 2, "oper": 16, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 9, "country": 2, "oper": 16, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 21, "country": 2, "oper": 16, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 2, "country": 2, "oper": 16, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 18, "country": 2, "oper": 16, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 7, "country": 2, "oper": 16, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 56, "country": 2, "oper": 16, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 14, "country": 2, "oper": 16, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 4, "country": 2, "oper": 16, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 20, "country": 2, "oper": 16, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 6, "country": 2, "oper": 16, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 60, "country": 2, "oper": null, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}, {"depart": 59, "country": 2, "oper": null, "hotel": null, "d1": "2025-12-26", "d2": "2025-12-27", "adult": null, "child": null, "meal": null, "text": "", "discount": {"proc": 1, "rub": 0, "usd": 0, "eur": 0}, "region": null, "subregion": null}];

// function get_discount(depart, country, oper, region, subregion, hotel, adult, child, meal, dt, currency) {
function parseDate(dateStr) {
    const [day, month, year] = dateStr.split('.');
    return new Date(year, month - 1, day);
}

function isDateBetween(date, start, end) {
    return date >= start && date <= end;
}

function get_discount(params) {
    const dt_in = parseDate(params.dt),
        hotel_regexp = RegExp('(^|[^\d])' + params.hotel + '([^\d]|$)'),
        result = {'proc': 0, 'currency_discount': 0,  'text': '', 'active': false};

        row = _.find(DISCOUNT, function(item) {
            return (
                (item.depart == null || item.depart == params.depart) &&
                (item.country == null || item.country == params.country) &&
                (item.oper == null || item.oper == params.oper) &&
                // (item.hotel == null || hotel_regexp.test(item.hotel)) &&
                (item.region == null || item.region == params.region) &&
                (item.subregion == null || item.subregion == params.subregion) &&
                (item.adult == null || item.adult == params.adult) &&
                (item.child == null || item.child == params.child) &&
                (item.meal == null || item.meal == params.meal) &&
                isDateBetween(dt_in, parseDate(item.d1), parseDate(item.d2))
            );
        });
    if (row) {
        if (row.discount.proc > 0) {
            result.proc = row.discount.proc;
        }
        else {
            result.currency_discount = row.discount[params.currency.toLowerCase()] || 0;
        }
        result.text = row.text;
        result.active = true;
    }
    return result;
}