"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
function getProxyUrl(reqUrl) {
    let usingSsl = reqUrl.protocol === 'https:';
    let proxyUrl;
    if (checkBypass(reqUrl)) {
        return proxyUrl;
    }
    let proxyVar;
    if (usingSsl) {
        proxyVar = process.env['https_proxy'] || process.env['HTTPS_PROXY'];
    }
    else {
        proxyVar = process.env['http_proxy'] || process.env['HTTP_PROXY'];
    }
    if (proxyVar) {
        proxyUrl = new URL(proxyVar);
    }
    return proxyUrl;
}
exports.getProxyUrl = getProxyUrl;
function checkBypass(reqUrl) {
    if (!reqUrl.hostname) {
        return false;
    }
    let noProxy = process.env['no_proxy'] || process.env['NO_PROXY'] || '';
    if (!noProxy) {
        return false;
    }
    // Determine the request port
    let reqPort;
    if (reqUrl.port) {
        reqPort = Number(reqUrl.port);
    }
    else if (reqUrl.protocol === 'http:') {
        reqPort = 80;
    }
    else if (reqUrl.protocol === 'https:') {
        reqPort = 443;
    }
    // Format the request hostname and hostname with port
    let upperReqHosts = [reqUrl.hostname.toUpperCase()];
    if (typeof reqPort === 'number') {
        upperReqHosts.push(`${upperReqHosts[0]}:${reqPort}`);
    }
    // Compare request host against noproxy
    for (let upperNoProxyItem of noProxy
        .split(',')
        .map(x => x.trim().toUpperCase())
        .filter(x => x)) {
        if (upperReqHosts.some(x => x === upperNoProxyItem)) {
            return true;
        }
    }
    return false;
}
exports.checkBypass = checkBypass;