(() => {
    const origSetInterval = window.setInterval;
    window.setInterval = function (fc, period, runImmediately=false) {
        if (runImmediately) fc();
        return origSetInterval(fc, period);
    };
})();

const ERR_ETH_MAX = 10;
function PromiseETH(url_ask, sendData = '', timeout = 950, beforeSend = function () { }) {
    //return new Promise((resolve, reject) => setTimeout(() => resolve('1;2;3;'), 10));
    return new Promise((resolve, reject) =>
        $.ajax({
            url: URL_BASE + url_ask + sendData, timeout,
            beforeSend,
            success: function (data) {
                // Promise returns the received data
                errETH = 0;
                resolve(data);
            },
            error: function (request, status, error) {
                // Count ERR_ETH_MAX consecutive errors
                if (++errETH == ERR_ETH_MAX) {
                    errETH = 0;
                    // Check user's wish
                    if (!confirm(`Ocorreram ${ERR_ETH_MAX} erros de comunicação seguidos!
                    Continuar tentando?`)) {
                        reject(); return;// Stop trying
                    }
                }
                // Try again
                PromiseETH(url_ask, sendData)
                    .then((data) => resolve(data))
                    .catch(() => reject())
            }
        })
    )
}