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CModule::IncludeModule("iblock");
$tariff_id = $_REQUEST["tariff_id"];
$tariff_id = intval($tariff_id);


$tariffs = [];

$filter = [
    'ID' => $tariff_id,
    'IBLOCK_ID' => CRM_TARIFFES_IBLOCK_ID,
];


$select = [
    'ID',
    'PROPERTY_PRICE',
    'PROPERTY_USERS_COUNT',
];

$tariffs_result = CIBlockElement::GetList(['SORT' => 'ASC'], $filter, FALSE, FALSE, $select);

while ($tariff = $tariffs_result->GetNext(FALSE, FALSE)) {
    $tariff['months_sales_percents'] = get_sale_percents_array($tariff['PROPERTY_PRICE_VALUE'], NULL, $tariff);
    $tariff['months_gifts'] = [];

    // Считаем кол-во месяцев в подарок
    foreach ($tariff['months_sales_percents'] as $month => $sale) {
        $months_count = round($sale * $month, 0, PHP_ROUND_HALF_UP);
        if ($months_count) {
            $tariff['months_gifts'][$month] = [
                'months' => $months_count,
                'text' => GetMessage($months_count . '_month_free'),
            ];
        }
    }

    // Считаем цену тарифа
    if ($tariff['PROPERTY_USERS_COUNT_VALUE'] > 0) {
        foreach ($tariff['prices'] as &$price) {
            $price /= $tariff['PROPERTY_USERS_COUNT_VALUE'];
        }
        unset($price);

        $tariff['PROPERTY_PRICE_VALUE'] /= $tariff['PROPERTY_USERS_COUNT_VALUE'];
    }
    $tariffs[$tariff["ID"]] = $tariff;
}