/*!
 Stencil Dev Server Process v2.1.1 | MIT Licensed | https://stenciljs.com
 */
'use strict';

const fs = require('../sys/node/graceful-fs.js');
const path = require('path');
const util = require('util');
const zlib = require('zlib');
const buffer = require('buffer');
const openInEditorApi = require('./open-in-editor-api.js');
const http = require('http');
const https = require('https');
const net = require('net');
const index_js = require('../sys/node/index.js');
const ws = require('./ws.js');
const childProcess = require('child_process');
const fs$1 = require('fs');
const os = require('os');

function _interopDefaultLegacy (e) { return e && typeof e === 'object' && 'default' in e ? e : { 'default': e }; }

const fs__default = /*#__PURE__*/_interopDefaultLegacy(fs);
const path__default = /*#__PURE__*/_interopDefaultLegacy(path);
const util__default = /*#__PURE__*/_interopDefaultLegacy(util);
const openInEditorApi__default = /*#__PURE__*/_interopDefaultLegacy(openInEditorApi);
const childProcess__default = /*#__PURE__*/_interopDefaultLegacy(childProcess);
const fs__default$1 = /*#__PURE__*/_interopDefaultLegacy(fs$1);
const os__default = /*#__PURE__*/_interopDefaultLegacy(os);

const DEV_SERVER_URL = '/~dev-server';
const DEV_MODULE_URL = '/~dev-module';
const DEV_SERVER_INIT_URL = `${DEV_SERVER_URL}-init`;
const OPEN_IN_EDITOR_URL = `${DEV_SERVER_URL}-open-in-editor`;

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o":"application/vnd.tao.intent-module-archive","tap":"image/vnd.tencent.tap","tar":"application/x-tar","tcap":"application/vnd.3gpp2.tcap","tcl":"application/x-tcl","td":"application/urc-targetdesc+xml","teacher":"application/vnd.smart.teacher","tei":"application/tei+xml","teicorpus":"application/tei+xml","tex":"application/x-tex","texi":"application/x-texinfo","texinfo":"application/x-texinfo","text":"text/plain","tfi":"application/thraud+xml","tfm":"application/x-tex-tfm","tfx":"image/tiff-fx","tga":"image/x-tga","thmx":"application/vnd.ms-officetheme","tif":"image/tiff","tiff":"image/tiff","tk":"application/x-tcl","tmo":"application/vnd.tmobile-livetv","toml":"application/toml","torrent":"application/x-bittorrent","tpl":"application/vnd.groove-tool-template","tpt":"application/vnd.trid.tpt","tr":"text/troff","tra":"application/vnd.trueapp","trm":"application/x-msterminal","ts":"video/mp2t","tsd":"application/timestamped-data","tsv":"text/tab-separated-values","ttc":"font/collection","ttf":"font/ttf","ttl":"text/turtle","ttml":"application/ttml+xml","twd":"application/vnd.simtech-mindmapper","twds":"application/vnd.simtech-mindmapper","txd":"application/vnd.genomatix.tuxedo","txf":"application/vnd.mobius.txf","txt":"text/plain","u32":"application/x-authorware-bin","u8dsn":"message/global-delivery-status","u8hdr":"message/global-headers","u8mdn":"message/global-disposition-notification","u8msg":"message/global","ubj":"application/ubjson","udeb":"application/x-debian-package","ufd":"application/vnd.ufdl","ufdl":"application/vnd.ufdl","ulx":"application/x-glulx","umj":"application/vnd.umajin","unityweb":"application/vnd.unity","uoml":"application/vnd.uoml+xml","uri":"text/uri-list","uris":"text/uri-list","urls":"text/uri-list","usdz":"model/vnd.usdz+zip","ustar":"application/x-ustar","utz":"application/vnd.uiq.theme","uu":"text/x-uuencode","uva":"audio/vnd.dece.audio","uvd":"application/vnd.dece.data","uvf":"application/vnd.dece.data","uvg":"image/vnd.dece.graphic","uvh":"video/vnd.dece.hd","uvi":"image/vnd.dece.graphic","uvm":"video/vnd.dece.mobile","uvp":"video/vnd.dece.pd","uvs":"video/vnd.dece.sd","uvt":"application/vnd.dece.ttml+xml","uvu":"video/vnd.uvvu.mp4","uvv":"video/vnd.dece.video","uvva":"audio/vnd.dece.audio","uvvd":"application/vnd.dece.data","uvvf":"application/vnd.dece.data","uvvg":"image/vnd.dece.graphic","uvvh":"video/vnd.dece.hd","uvvi":"image/vnd.dece.graphic","uvvm":"video/vnd.dece.mobile","uvvp":"video/vnd.dece.pd","uvvs":"video/vnd.dece.sd","uvvt":"application/vnd.dece.ttml+xml","uvvu":"video/vnd.uvvu.mp4","uvvv":"video/vnd.dece.video","uvvx":"application/vnd.dece.unspecified","uvvz":"application/vnd.dece.zip","uvx":"application/vnd.dece.unspecified","uvz":"application/vnd.dece.zip","vbox":"application/x-virtualbox-vbox","vbox-extpack":"application/x-virtualbox-vbox-extpack","vcard":"text/vcard","vcd":"application/x-cdlink","vcf":"text/x-vcard","vcg":"application/vnd.groove-vcard","vcs":"text/x-vcalendar","vcx":"application/vnd.vcx","vdi":"application/x-virtualbox-vdi","vhd":"application/x-virtualbox-vhd","vis":"application/vnd.visionary","viv":"video/vnd.vivo","vmdk":"application/x-virtualbox-vmdk","vob":"video/x-ms-vob","vor":"application/vnd.stardivision.writer","vox":"application/x-authorware-bin","vrml":"model/vrml","vsd":"application/vnd.visio","vsf":"application/vnd.vsf","vss":"application/vnd.visio","vst":"application/vnd.visio","vsw":"application/vnd.visio","vtf":"image/vnd.valve.source.texture","vtt":"text/vtt","vtu":"model/vnd.vtu","vxml":"application/voicexml+xml","w3d":"application/x-director","wad":"application/x-doom","wadl":"application/vnd.sun.wadl+xml","war":"application/java-archive","wasm":"application/wasm","wav":"audio/x-wav","wax":"audio/x-ms-wax","wbmp":"image/vnd.wap.wbmp","wbs":"application/vnd.criticaltools.wbs+xml","wbxml":"application/vnd.wap.wbxml","wcm":"application/vnd.ms-works","wdb":"application/vnd.ms-works","wdp":"image/vnd.ms-photo","weba":"audio/webm","webapp":"application/x-web-app-manifest+json","webm":"video/webm","webmanifest":"application/manifest+json","webp":"image/webp","wg":"application/vnd.pmi.widget","wgt":"application/widget","wks":"application/vnd.ms-works","wm":"video/x-ms-wm","wma":"audio/x-ms-wma","wmd":"application/x-ms-wmd","wmf":"image/wmf","wml":"text/vnd.wap.wml","wmlc":"application/vnd.wap.wmlc","wmls":"text/vnd.wap.wmlscript","wmlsc":"application/vnd.wap.wmlscriptc","wmv":"video/x-ms-wmv","wmx":"video/x-ms-wmx","wmz":"application/x-msmetafile","woff":"font/woff","woff2":"font/woff2","wpd":"application/vnd.wordperfect","wpl":"application/vnd.ms-wpl","wps":"application/vnd.ms-works","wqd":"application/vnd.wqd","wri":"application/x-mswrite","wrl":"model/vrml","wsc":"message/vnd.wfa.wsc","wsdl":"application/wsdl+xml","wspolicy":"application/wspolicy+xml","wtb":"application/vnd.webturbo","wvx":"video/x-ms-wvx","x32":"application/x-authorware-bin","x3d":"model/x3d+xml","x3db":"model/x3d+fastinfoset","x3dbz":"model/x3d+binary","x3dv":"model/x3d-vrml","x3dvz":"model/x3d+vrml","x3dz":"model/x3d+xml","x_b":"model/vnd.parasolid.transmit.binary","x_t":"model/vnd.parasolid.transmit.text","xaml":"application/xaml+xml","xap":"application/x-silverlight-app","xar":"application/vnd.xara","xav":"application/xcap-att+xml","xbap":"application/x-ms-xbap","xbd":"application/vnd.fujixerox.docuworks.binder","xbm":"image/x-xbitmap","xca":"application/xcap-caps+xml","xcs":"application/calendar+xml","xdf":"application/xcap-diff+xml","xdm":"application/vnd.syncml.dm+xml","xdp":"application/vnd.adobe.xdp+xml","xdssc":"application/dssc+xml","xdw":"application/vnd.fujixerox.docuworks","xel":"application/xcap-el+xml","xenc":"application/xenc+xml","xer":"application/xcap-error+xml","xfdf":"application/vnd.adobe.xfdf","xfdl":"application/vnd.xfdl","xht":"application/xhtml+xml","xhtml":"application/xhtml+xml","xhvml":"application/xv+xml","xif":"image/vnd.xiff","xla":"application/vnd.ms-excel","xlam":"application/vnd.ms-excel.addin.macroenabled.12","xlc":"application/vnd.ms-excel","xlf":"application/xliff+xml","xlm":"application/vnd.ms-excel","xls":"application/vnd.ms-excel","xlsb":"application/vnd.ms-excel.sheet.binary.macroenabled.12","xlsm":"application/vnd.ms-excel.sheet.macroenabled.12","xlsx":"application/vnd.openxmlformats-officedocument.spreadsheetml.sheet","xlt":"application/vnd.ms-excel","xltm":"application/vnd.ms-excel.template.macroenabled.12","xltx":"application/vnd.openxmlformats-officedocument.spreadsheetml.template","xlw":"application/vnd.ms-excel","xm":"audio/xm","xml":"text/xml","xns":"application/xcap-ns+xml","xo":"application/vnd.olpc-sugar","xop":"application/xop+xml","xpi":"application/x-xpinstall","xpl":"application/xproc+xml","xpm":"image/x-xpixmap","xpr":"application/vnd.is-xpr","xps":"application/vnd.ms-xpsdocument","xpw":"application/vnd.intercon.formnet","xpx":"application/vnd.intercon.formnet","xsd":"application/xml","xsl":"application/xslt+xml","xslt":"application/xslt+xml","xsm":"application/vnd.syncml+xml","xspf":"application/xspf+xml","xul":"application/vnd.mozilla.xul+xml","xvm":"application/xv+xml","xvml":"application/xv+xml","xwd":"image/x-xwindowdump","xyz":"chemical/x-xyz","xz":"application/x-xz","yaml":"text/yaml","yang":"application/yang","yin":"application/yin+xml","yml":"text/yaml","ymp":"text/x-suse-ymp","z1":"application/x-zmachine","z2":"application/x-zmachine","z3":"application/x-zmachine","z4":"application/x-zmachine","z5":"application/x-zmachine","z6":"application/x-zmachine","z7":"application/x-zmachine","z8":"application/x-zmachine","zaz":"application/vnd.zzazz.deck+xml","zip":"application/zip","zir":"application/vnd.zul","zirz":"application/vnd.zul","zmm":"application/vnd.handheld-entertainment+xml"};

const version = '2.1.1';

function responseHeaders(headers, httpCache = false) {
    headers = { ...DEFAULT_HEADERS, ...headers };
    if (httpCache) {
        headers['cache-control'] = 'max-age=3600';
        delete headers['date'];
        delete headers['expires'];
    }
    return headers;
}
const DEFAULT_HEADERS = {
    'cache-control': 'no-cache, no-store, must-revalidate, max-age=0',
    'expires': '0',
    'date': 'Wed, 1 Jan 2000 00:00:00 GMT',
    'server': 'Stencil Dev Server ' + version,
    'access-control-allow-origin': '*',
    'access-control-expose-headers': '*',
};
function getBrowserUrl(protocol, address, port, basePath, pathname) {
    address = address === `0.0.0.0` ? `localhost` : address;
    const portSuffix = !port || port === 80 || port === 443 ? '' : ':' + port;
    let path = basePath;
    if (pathname.startsWith('/')) {
        pathname = pathname.substring(1);
    }
    path += pathname;
    protocol = protocol.replace(/\:/g, '');
    return `${protocol}://${address}${portSuffix}${path}`;
}
function getDevServerClientUrl(devServerConfig, host, protocol) {
    let address = devServerConfig.address;
    let port = devServerConfig.port;
    if (host) {
        address = host;
        port = null;
    }
    return getBrowserUrl(protocol !== null && protocol !== void 0 ? protocol : devServerConfig.protocol, address, port, devServerConfig.basePath, DEV_SERVER_URL);
}
function getContentType(filePath) {
    const last = filePath.replace(/^.*[/\\]/, '').toLowerCase();
    const ext = last.replace(/^.*\./, '').toLowerCase();
    const hasPath = last.length < filePath.length;
    const hasDot = ext.length < last.length - 1;
    return ((hasDot || !hasPath) && contentTypes[ext]) || 'application/octet-stream';
}
function isHtmlFile(filePath) {
    filePath = filePath.toLowerCase().trim();
    return filePath.endsWith('.html') || filePath.endsWith('.htm');
}
function isCssFile(filePath) {
    filePath = filePath.toLowerCase().trim();
    return filePath.endsWith('.css');
}
const TXT_EXT = ['css', 'html', 'htm', 'js', 'json', 'svg', 'xml'];
function isSimpleText(filePath) {
    const ext = filePath.toLowerCase().trim().split('.').pop();
    return TXT_EXT.includes(ext);
}
function isExtensionLessPath(pathname) {
    const parts = pathname.split('/');
    const lastPart = parts[parts.length - 1];
    return !lastPart.includes('.');
}
function isSsrStaticDataPath(pathname) {
    const parts = pathname.split('/');
    const fileName = parts[parts.length - 1].split('?')[0];
    return fileName === 'page.state.json';
}
function getSsrStaticDataPath(pathname) {
    const parts = pathname.split('/');
    let fileName = parts[parts.length - 1];
    const fileNameParts = fileName.split('?');
    parts.pop();
    return {
        ssrPath: parts.join('/'),
        fileName: fileNameParts[0],
        hasQueryString: typeof fileNameParts[1] === 'string' && fileNameParts[1].length > 0,
    };
}
function isDevClient(pathname) {
    return pathname.startsWith(DEV_SERVER_URL);
}
function isDevModule(pathname) {
    return pathname.includes(DEV_MODULE_URL);
}
function isOpenInEditor(pathname) {
    return pathname === OPEN_IN_EDITOR_URL;
}
function isInitialDevServerLoad(pathname) {
    return pathname === DEV_SERVER_INIT_URL;
}
function isDevServerClient(pathname) {
    return pathname === DEV_SERVER_URL;
}
function shouldCompress(devServerConfig, req) {
    if (!devServerConfig.gzip) {
        return false;
    }
    if (req.method !== 'GET') {
        return false;
    }
    const acceptEncoding = req.headers && req.headers['accept-encoding'];
    if (typeof acceptEncoding !== 'string') {
        return false;
    }
    if (!acceptEncoding.includes('gzip')) {
        return false;
    }
    return true;
}

function createServerContext(sys, sendMsg, devServerConfig, buildResultsResolves, compilerRequestResolves) {
    const logRequest = (req, status) => {
        if (devServerConfig) {
            sendMsg({
                requestLog: {
                    method: req.method || '?',
                    url: req.pathname || '?',
                    status,
                },
            });
        }
    };
    const serve500 = (req, res, error, xSource) => {
        try {
            res.writeHead(500, responseHeaders({
                'content-type': 'text/plain; charset=utf-8',
                'x-source': xSource,
            }));
            res.write(util__default['default'].inspect(error));
            res.end();
            logRequest(req, 500);
        }
        catch (e) {
            sendMsg({ error: { message: 'serve500: ' + e } });
        }
    };
    const serve404 = (req, res, xSource, content = null) => {
        try {
            if (req.pathname === '/favicon.ico') {
                const defaultFavicon = path__default['default'].join(devServerConfig.devServerDir, 'static', 'favicon.ico');
                res.writeHead(200, responseHeaders({
                    'content-type': 'image/x-icon',
                    'x-source': `favicon: ${xSource}`,
                }));
                const rs = fs__default['default'].createReadStream(defaultFavicon);
                rs.on('error', err => {
                    res.writeHead(404, responseHeaders({
                        'content-type': 'text/plain; charset=utf-8',
                        'x-source': `createReadStream error: ${err}, ${xSource}`,
                    }));
                    res.write(util__default['default'].inspect(err));
                    res.end();
                });
                rs.pipe(res);
                return;
            }
            if (content == null) {
                content = ['404 File Not Found', 'Url: ' + req.pathname, 'File: ' + req.filePath].join('\n');
            }
            res.writeHead(404, responseHeaders({
                'content-type': 'text/plain; charset=utf-8',
                'x-source': xSource,
            }));
            res.write(content);
            res.end();
            logRequest(req, 400);
        }
        catch (e) {
            serve500(req, res, e, xSource);
        }
    };
    const serve302 = (req, res, pathname = null) => {
        logRequest(req, 302);
        res.writeHead(302, { location: pathname || devServerConfig.basePath || '/' });
        res.end();
    };
    const getBuildResults = () => new Promise((resolve, reject) => {
        if (serverCtx.isServerListening) {
            buildResultsResolves.push({ resolve, reject });
            sendMsg({ requestBuildResults: true });
        }
        else {
            reject('dev server closed');
        }
    });
    const getCompilerRequest = (compilerRequestPath) => new Promise((resolve, reject) => {
        if (serverCtx.isServerListening) {
            compilerRequestResolves.push({
                path: compilerRequestPath,
                resolve,
                reject,
            });
            sendMsg({ compilerRequestPath });
        }
        else {
            reject('dev server closed');
        }
    });
    const serverCtx = {
        connectorHtml: null,
        dirTemplate: null,
        getBuildResults,
        getCompilerRequest,
        isServerListening: false,
        logRequest,
        prerenderConfig: null,
        serve302,
        serve404,
        serve500,
        sys,
    };
    return serverCtx;
}

const noop = () => {
    /* noop*/
};
const isFunction = (v) => typeof v === 'function';
const isString = (v) => typeof v === 'string';

const catchError = (diagnostics, err, msg) => {
    const diagnostic = {
        level: 'error',
        type: 'build',
        header: 'Build Error',
        messageText: 'build error',
        relFilePath: null,
        absFilePath: null,
        lines: [],
    };
    if (isString(msg)) {
        diagnostic.messageText = msg;
    }
    else if (err != null) {
        if (err.stack != null) {
            diagnostic.messageText = err.stack.toString();
        }
        else {
            if (err.message != null) {
                diagnostic.messageText = err.message.toString();
            }
            else {
                diagnostic.messageText = err.toString();
            }
        }
    }
    if (diagnostics != null && !shouldIgnoreError(diagnostic.messageText)) {
        diagnostics.push(diagnostic);
    }
    return diagnostic;
};
const shouldIgnoreError = (msg) => {
    return msg === TASK_CANCELED_MSG;
};
const TASK_CANCELED_MSG = `task canceled`;

/**
 * Convert Windows backslash paths to slash paths: foo\\bar ➔ foo/bar
 * Forward-slash paths can be used in Windows as long as they're not
 * extended-length paths and don't contain any non-ascii characters.
 * This was created since the path methods in Node.js outputs \\ paths on Windows.
 */
const normalizePath = (path) => {
    if (typeof path !== 'string') {
        throw new Error(`invalid path to normalize`);
    }
    path = normalizeSlashes(path.trim());
    const components = pathComponents(path, getRootLength(path));
    const reducedComponents = reducePathComponents(components);
    const rootPart = reducedComponents[0];
    const secondPart = reducedComponents[1];
    const normalized = rootPart + reducedComponents.slice(1).join('/');
    if (normalized === '') {
        return '.';
    }
    if (rootPart === '' && secondPart && path.includes('/') && !secondPart.startsWith('.') && !secondPart.startsWith('@')) {
        return './' + normalized;
    }
    return normalized;
};
const normalizeSlashes = (path) => path.replace(backslashRegExp, '/');
const altDirectorySeparator = '\\';
const urlSchemeSeparator = '://';
const backslashRegExp = /\\/g;
const reducePathComponents = (components) => {
    if (!Array.isArray(components) || components.length === 0) {
        return [];
    }
    const reduced = [components[0]];
    for (let i = 1; i < components.length; i++) {
        const component = components[i];
        if (!component)
            continue;
        if (component === '.')
            continue;
        if (component === '..') {
            if (reduced.length > 1) {
                if (reduced[reduced.length - 1] !== '..') {
                    reduced.pop();
                    continue;
                }
            }
            else if (reduced[0])
                continue;
        }
        reduced.push(component);
    }
    return reduced;
};
const getRootLength = (path) => {
    const rootLength = getEncodedRootLength(path);
    return rootLength < 0 ? ~rootLength : rootLength;
};
const getEncodedRootLength = (path) => {
    if (!path)
        return 0;
    const ch0 = path.charCodeAt(0);
    // POSIX or UNC
    if (ch0 === 47 /* slash */ || ch0 === 92 /* backslash */) {
        if (path.charCodeAt(1) !== ch0)
            return 1; // POSIX: "/" (or non-normalized "\")
        const p1 = path.indexOf(ch0 === 47 /* slash */ ? '/' : altDirectorySeparator, 2);
        if (p1 < 0)
            return path.length; // UNC: "//server" or "\\server"
        return p1 + 1; // UNC: "//server/" or "\\server\"
    }
    // DOS
    if (isVolumeCharacter(ch0) && path.charCodeAt(1) === 58 /* colon */) {
        const ch2 = path.charCodeAt(2);
        if (ch2 === 47 /* slash */ || ch2 === 92 /* backslash */)
            return 3; // DOS: "c:/" or "c:\"
        if (path.length === 2)
            return 2; // DOS: "c:" (but not "c:d")
    }
    // URL
    const schemeEnd = path.indexOf(urlSchemeSeparator);
    if (schemeEnd !== -1) {
        const authorityStart = schemeEnd + urlSchemeSeparator.length;
        const authorityEnd = path.indexOf('/', authorityStart);
        if (authorityEnd !== -1) {
            // URL: "file:///", "file://server/", "file://server/path"
            // For local "file" URLs, include the leading DOS volume (if present).
            // Per https://www.ietf.org/rfc/rfc1738.txt, a host of "" or "localhost" is a
            // special case interpreted as "the machine from which the URL is being interpreted".
            const scheme = path.slice(0, schemeEnd);
            const authority = path.slice(authorityStart, authorityEnd);
            if (scheme === 'file' && (authority === '' || authority === 'localhost') && isVolumeCharacter(path.charCodeAt(authorityEnd + 1))) {
                const volumeSeparatorEnd = getFileUrlVolumeSeparatorEnd(path, authorityEnd + 2);
                if (volumeSeparatorEnd !== -1) {
                    if (path.charCodeAt(volumeSeparatorEnd) === 47 /* slash */) {
                        // URL: "file:///c:/", "file://localhost/c:/", "file:///c%3a/", "file://localhost/c%3a/"
                        return ~(volumeSeparatorEnd + 1);
                    }
                    if (volumeSeparatorEnd === path.length) {
                        // URL: "file:///c:", "file://localhost/c:", "file:///c$3a", "file://localhost/c%3a"
                        // but not "file:///c:d" or "file:///c%3ad"
                        return ~volumeSeparatorEnd;
                    }
                }
            }
            return ~(authorityEnd + 1); // URL: "file://server/", "http://server/"
        }
        return ~path.length; // URL: "file://server", "http://server"
    }
    // relative
    return 0;
};
const isVolumeCharacter = (charCode) => (charCode >= 97 /* a */ && charCode <= 122 /* z */) || (charCode >= 65 /* A */ && charCode <= 90 /* Z */);
const getFileUrlVolumeSeparatorEnd = (url, start) => {
    const ch0 = url.charCodeAt(start);
    if (ch0 === 58 /* colon */)
        return start + 1;
    if (ch0 === 37 /* percent */ && url.charCodeAt(start + 1) === 51 /* _3 */) {
        const ch2 = url.charCodeAt(start + 2);
        if (ch2 === 97 /* a */ || ch2 === 65 /* A */)
            return start + 3;
    }
    return -1;
};
const pathComponents = (path, rootLength) => {
    const root = path.substring(0, rootLength);
    const rest = path.substring(rootLength).split('/');
    const restLen = rest.length;
    if (restLen > 0 && !rest[restLen - 1]) {
        rest.pop();
    }
    return [root, ...rest];
};

async function serveFile(devServerConfig, serverCtx, req, res) {
    try {
        if (isSimpleText(req.filePath)) {
            // easy text file, use the internal cache
            let content = await serverCtx.sys.readFile(req.filePath, 'utf8');
            if (devServerConfig.websocket && isHtmlFile(req.filePath) && !isDevServerClient(req.pathname)) {
                // auto inject our dev server script
                content = appendDevServerClientScript(devServerConfig, req, content);
            }
            else if (isCssFile(req.filePath)) {
                content = updateStyleUrls(req.url, content);
            }
            if (shouldCompress(devServerConfig, req)) {
                // let's gzip this well known web dev text file
                res.writeHead(200, responseHeaders({
                    'content-type': getContentType(req.filePath) + '; charset=utf-8',
                    'content-encoding': 'gzip',
                    'vary': 'Accept-Encoding',
                }));
                zlib.gzip(content, { level: 9 }, (_, data) => {
                    res.end(data);
                });
            }
            else {
                // let's not gzip this file
                res.writeHead(200, responseHeaders({
                    'content-type': getContentType(req.filePath) + '; charset=utf-8',
                    'content-length': buffer.Buffer.byteLength(content, 'utf8'),
                }));
                res.write(content);
                res.end();
            }
        }
        else {
            // non-well-known text file or other file, probably best we use a stream
            // but don't bother trying to gzip this file for the dev server
            res.writeHead(200, responseHeaders({
                'content-type': getContentType(req.filePath),
                'content-length': req.stats.size,
            }));
            fs__default['default'].createReadStream(req.filePath).pipe(res);
        }
        serverCtx.logRequest(req, 200);
    }
    catch (e) {
        serverCtx.serve500(req, res, e, 'serveFile');
    }
}
function updateStyleUrls(url, oldCss) {
    const versionId = url.searchParams.get('s-hmr');
    const hmrUrls = url.searchParams.get('s-hmr-urls');
    if (versionId && hmrUrls) {
        hmrUrls.split(',').forEach(hmrUrl => {
            urlVersionIds.set(hmrUrl, versionId);
        });
    }
    const reg = /url\((['"]?)(.*)\1\)/gi;
    let result;
    let newCss = oldCss;
    while ((result = reg.exec(oldCss)) !== null) {
        const oldUrl = result[2];
        const parsedUrl = new URL(oldUrl, url);
        const fileName = path__default['default'].basename(parsedUrl.pathname);
        const versionId = urlVersionIds.get(fileName);
        if (!versionId) {
            continue;
        }
        parsedUrl.searchParams.set('s-hmr', versionId);
        newCss = newCss.replace(oldUrl, parsedUrl.pathname);
    }
    return newCss;
}
const urlVersionIds = new Map();
function appendDevServerClientScript(devServerConfig, req, content) {
    var _a, _b, _c;
    const devServerClientUrl = getDevServerClientUrl(devServerConfig, (_b = (_a = req.headers) === null || _a === void 0 ? void 0 : _a['x-forwarded-host']) !== null && _b !== void 0 ? _b : req.host, (_c = req.headers) === null || _c === void 0 ? void 0 : _c['x-forwarded-proto']);
    const iframe = `<iframe title="Stencil Dev Server Connector ${version} &#9889;" src="${devServerClientUrl}" style="display:block;width:0;height:0;border:0;visibility:hidden" aria-hidden="true"></iframe>`;
    return appendDevServerClientIframe(content, iframe);
}
function appendDevServerClientIframe(content, iframe) {
    if (content.includes('</body>')) {
        return content.replace('</body>', `${iframe}</body>`);
    }
    if (content.includes('</html>')) {
        return content.replace('</html>', `${iframe}</html>`);
    }
    return `${content}${iframe}`;
}

async function serveOpenInEditor(serverCtx, req, res) {
    let status = 200;
    const data = {};
    try {
        const editors = await getEditors();
        if (editors.length > 0) {
            await parseData(editors, serverCtx.sys, req, data);
            await openDataInEditor(data);
        }
        else {
            data.error = `no editors available`;
        }
    }
    catch (e) {
        data.error = e + '';
        status = 500;
    }
    serverCtx.logRequest(req, status);
    res.writeHead(status, responseHeaders({
        'content-type': 'application/json; charset=utf-8',
    }));
    res.write(JSON.stringify(data, null, 2));
    res.end();
}
async function parseData(editors, sys, req, data) {
    const qs = req.searchParams;
    if (!qs.has('file')) {
        data.error = `missing file`;
        return;
    }
    data.file = qs.get('file');
    if (qs.has('line') && !isNaN(qs.get('line'))) {
        data.line = parseInt(qs.get('line'), 10);
    }
    if (typeof data.line !== 'number' || data.line < 1) {
        data.line = 1;
    }
    if (qs.has('column') && !isNaN(qs.get('column'))) {
        data.column = parseInt(qs.get('column'), 10);
    }
    if (typeof data.column !== 'number' || data.column < 1) {
        data.column = 1;
    }
    let editor = qs.get('editor');
    if (typeof editor === 'string') {
        editor = editor.trim().toLowerCase();
        if (editors.some(e => e.id === editor)) {
            data.editor = editor;
        }
        else {
            data.error = `invalid editor: ${editor}`;
            return;
        }
    }
    else {
        data.editor = editors[0].id;
    }
    const stat = await sys.stat(data.file);
    data.exists = stat.isFile;
}
async function openDataInEditor(data) {
    if (!data.exists || data.error) {
        return;
    }
    try {
        const opts = {
            editor: data.editor,
        };
        const editor = openInEditorApi__default['default'].configure(opts, err => (data.error = err + ''));
        if (data.error) {
            return;
        }
        data.open = `${data.file}:${data.line}:${data.column}`;
        await editor.open(data.open);
    }
    catch (e) {
        data.error = e + '';
    }
}
let editors = null;
function getEditors() {
    if (!editors) {
        editors = new Promise(async (resolve) => {
            const editors = [];
            try {
                await Promise.all(Object.keys(openInEditorApi__default['default'].editors).map(async (editorId) => {
                    const isSupported = await isEditorSupported(editorId);
                    editors.push({
                        id: editorId,
                        priority: EDITOR_PRIORITY[editorId],
                        supported: isSupported,
                    });
                }));
            }
            catch (e) { }
            resolve(editors
                .filter(e => e.supported)
                .sort((a, b) => {
                if (a.priority < b.priority)
                    return -1;
                if (a.priority > b.priority)
                    return 1;
                return 0;
            })
                .map(e => {
                return {
                    id: e.id,
                    name: EDITORS[e.id],
                };
            }));
        });
    }
    return editors;
}
async function isEditorSupported(editorId) {
    let isSupported = false;
    try {
        await openInEditorApi__default['default'].editors[editorId].detect();
        isSupported = true;
    }
    catch (e) { }
    return isSupported;
}
const EDITORS = {
    atom: 'Atom',
    code: 'Code',
    emacs: 'Emacs',
    idea14ce: 'IDEA 14 Community Edition',
    phpstorm: 'PhpStorm',
    sublime: 'Sublime',
    webstorm: 'WebStorm',
    vim: 'Vim',
    visualstudio: 'Visual Studio',
};
const EDITOR_PRIORITY = {
    code: 1,
    atom: 2,
    sublime: 3,
    visualstudio: 4,
    idea14ce: 5,
    webstorm: 6,
    phpstorm: 7,
    vim: 8,
    emacs: 9,
};

async function serveDevClient(devServerConfig, serverCtx, req, res) {
    try {
        if (isOpenInEditor(req.pathname)) {
            return serveOpenInEditor(serverCtx, req, res);
        }
        if (isDevServerClient(req.pathname)) {
            return serveDevClientScript(devServerConfig, serverCtx, req, res);
        }
        if (isInitialDevServerLoad(req.pathname)) {
            req.filePath = path__default['default'].join(devServerConfig.devServerDir, 'templates', 'initial-load.html');
        }
        else {
            const staticFile = req.pathname.replace(DEV_SERVER_URL + '/', '');
            req.filePath = path__default['default'].join(devServerConfig.devServerDir, 'static', staticFile);
        }
        try {
            req.stats = await serverCtx.sys.stat(req.filePath);
            if (req.stats.isFile) {
                return serveFile(devServerConfig, serverCtx, req, res);
            }
            return serverCtx.serve404(req, res, 'serveDevClient not file');
        }
        catch (e) {
            return serverCtx.serve404(req, res, `serveDevClient stats error ${e}`);
        }
    }
    catch (e) {
        return serverCtx.serve500(req, res, e, 'serveDevClient');
    }
}
async function serveDevClientScript(devServerConfig, serverCtx, req, res) {
    try {
        if (serverCtx.connectorHtml == null) {
            const filePath = path__default['default'].join(devServerConfig.devServerDir, 'connector.html');
            serverCtx.connectorHtml = serverCtx.sys.readFileSync(filePath, 'utf8');
            if (typeof serverCtx.connectorHtml !== 'string') {
                return serverCtx.serve404(req, res, `serveDevClientScript`);
            }
            const devClientConfig = {
                basePath: devServerConfig.basePath,
                editors: await getEditors(),
                reloadStrategy: devServerConfig.reloadStrategy,
            };
            serverCtx.connectorHtml = serverCtx.connectorHtml.replace('window.__DEV_CLIENT_CONFIG__', JSON.stringify(devClientConfig));
        }
        res.writeHead(200, responseHeaders({
            'content-type': 'text/html; charset=utf-8',
        }));
        res.write(serverCtx.connectorHtml);
        res.end();
    }
    catch (e) {
        return serverCtx.serve500(req, res, e, `serveDevClientScript`);
    }
}

async function serveDevNodeModule(serverCtx, req, res) {
    try {
        const results = await serverCtx.getCompilerRequest(req.pathname);
        const headers = {
            'content-type': 'application/javascript; charset=utf-8',
            'content-length': Buffer.byteLength(results.content, 'utf8'),
            'x-dev-node-module-id': results.nodeModuleId,
            'x-dev-node-module-version': results.nodeModuleVersion,
            'x-dev-node-module-resolved-path': results.nodeResolvedPath,
            'x-dev-node-module-cache-path': results.cachePath,
            'x-dev-node-module-cache-hit': results.cacheHit,
        };
        res.writeHead(results.status, responseHeaders(headers));
        res.write(results.content);
        res.end();
    }
    catch (e) {
        serverCtx.serve500(req, res, e, `serveDevNodeModule`);
    }
}

async function serveDirectoryIndex(devServerConfig, serverCtx, req, res) {
    const indexFilePath = path__default['default'].join(req.filePath, 'index.html');
    req.stats = await serverCtx.sys.stat(indexFilePath);
    if (req.stats.isFile) {
        req.filePath = indexFilePath;
        return serveFile(devServerConfig, serverCtx, req, res);
    }
    if (!req.pathname.endsWith('/')) {
        return serverCtx.serve302(req, res, req.pathname + '/');
    }
    try {
        const dirFilePaths = await serverCtx.sys.readDir(req.filePath);
        try {
            if (serverCtx.dirTemplate == null) {
                const dirTemplatePath = path__default['default'].join(devServerConfig.devServerDir, 'templates', 'directory-index.html');
                serverCtx.dirTemplate = serverCtx.sys.readFileSync(dirTemplatePath);
            }
            const files = await getFiles(serverCtx.sys, req.url, dirFilePaths);
            const templateHtml = serverCtx.dirTemplate
                .replace('{{title}}', getTitle(req.pathname))
                .replace('{{nav}}', getName(req.pathname))
                .replace('{{files}}', files);
            serverCtx.logRequest(req, 200);
            res.writeHead(200, responseHeaders({
                'content-type': 'text/html; charset=utf-8',
                'x-directory-index': req.pathname,
            }));
            res.write(templateHtml);
            res.end();
        }
        catch (e) {
            return serverCtx.serve500(req, res, e, 'serveDirectoryIndex');
        }
    }
    catch (e) {
        return serverCtx.serve404(req, res, 'serveDirectoryIndex');
    }
}
async function getFiles(sys, baseUrl, dirItemNames) {
    const items = await getDirectoryItems(sys, baseUrl, dirItemNames);
    if (baseUrl.pathname !== '/') {
        items.unshift({
            isDirectory: true,
            pathname: '../',
            name: '..',
        });
    }
    return items
        .map(item => {
        return `
        <li class="${item.isDirectory ? 'directory' : 'file'}">
          <a href="${item.pathname}">
            <span class="icon"></span>
            <span>${item.name}</span>
          </a>
        </li>`;
    })
        .join('');
}
async function getDirectoryItems(sys, baseUrl, dirFilePaths) {
    const items = await Promise.all(dirFilePaths.map(async (dirFilePath) => {
        const fileName = path__default['default'].basename(dirFilePath);
        const url = new URL(fileName, baseUrl);
        const stats = await sys.stat(dirFilePath);
        const item = {
            name: fileName,
            pathname: url.pathname,
            isDirectory: stats.isDirectory,
        };
        return item;
    }));
    return items;
}
function getTitle(pathName) {
    return pathName;
}
function getName(pathName) {
    const dirs = pathName.split('/');
    dirs.pop();
    let url = '';
    return (dirs
        .map((dir, index) => {
        url += dir + '/';
        const text = index === 0 ? `~` : dir;
        return `<a href="${url}">${text}</a>`;
    })
        .join('<span>/</span>') + '<span>/</span>');
}

async function ssrPageRequest(devServerConfig, serverCtx, req, res) {
    try {
        let status = 500;
        let content = '';
        const { hydrateApp, srcIndexHtml, diagnostics } = await setupHydrateApp(devServerConfig, serverCtx);
        if (!diagnostics.some(diagnostic => diagnostic.level === 'error')) {
            try {
                const opts = getSsrHydrateOptions(devServerConfig, serverCtx, req.url);
                const ssrResults = await hydrateApp.renderToString(srcIndexHtml, opts);
                diagnostics.push(...ssrResults.diagnostics);
                status = ssrResults.httpStatus;
                content = ssrResults.html;
            }
            catch (e) {
                catchError(diagnostics, e);
            }
        }
        if (diagnostics.some(diagnostic => diagnostic.level === 'error')) {
            content = getSsrErrorContent(diagnostics);
            status = 500;
        }
        if (devServerConfig.websocket) {
            content = appendDevServerClientScript(devServerConfig, req, content);
        }
        serverCtx.logRequest(req, status);
        res.writeHead(status, responseHeaders({
            'content-type': 'text/html; charset=utf-8',
            'content-length': Buffer.byteLength(content, 'utf8'),
        }));
        res.write(content);
        res.end();
    }
    catch (e) {
        serverCtx.serve500(req, res, e, `ssrPageRequest`);
    }
}
async function ssrStaticDataRequest(devServerConfig, serverCtx, req, res) {
    try {
        const data = {};
        let httpCache = false;
        const { hydrateApp, srcIndexHtml, diagnostics } = await setupHydrateApp(devServerConfig, serverCtx);
        if (!diagnostics.some(diagnostic => diagnostic.level === 'error')) {
            try {
                const { ssrPath, hasQueryString } = getSsrStaticDataPath(req.url.href);
                const url = new URL(ssrPath, req.url);
                const opts = getSsrHydrateOptions(devServerConfig, serverCtx, url);
                const ssrResults = await hydrateApp.renderToString(srcIndexHtml, opts);
                diagnostics.push(...ssrResults.diagnostics);
                ssrResults.staticData.forEach(s => {
                    if (s.type === 'application/json') {
                        data[s.id] = JSON.parse(s.content);
                    }
                    else {
                        data[s.id] = s.content;
                    }
                });
                data.components = ssrResults.components.map(c => c.tag).sort();
                httpCache = hasQueryString;
            }
            catch (e) {
                catchError(diagnostics, e);
            }
        }
        if (diagnostics.length > 0) {
            data.diagnostics = diagnostics;
        }
        const status = diagnostics.some(diagnostic => diagnostic.level === 'error') ? 500 : 200;
        const content = JSON.stringify(data);
        serverCtx.logRequest(req, status);
        res.writeHead(status, responseHeaders({
            'content-type': 'application/json; charset=utf-8',
            'content-length': Buffer.byteLength(content, 'utf8'),
        }, httpCache && status === 200));
        res.write(content);
        res.end();
    }
    catch (e) {
        serverCtx.serve500(req, res, e, `ssrStaticDataRequest`);
    }
}
async function setupHydrateApp(devServerConfig, serverCtx) {
    let srcIndexHtml = null;
    let hydrateApp = null;
    const buildResults = await serverCtx.getBuildResults();
    const diagnostics = [];
    if (serverCtx.prerenderConfig == null && isString(devServerConfig.prerenderConfig)) {
        const compilerPath = path__default['default'].join(devServerConfig.devServerDir, '..', 'compiler', 'stencil.js');
        const compiler = require(compilerPath);
        const prerenderConfigResults = compiler.nodeRequire(devServerConfig.prerenderConfig);
        diagnostics.push(...prerenderConfigResults.diagnostics);
        if (prerenderConfigResults.module && prerenderConfigResults.module.config) {
            serverCtx.prerenderConfig = prerenderConfigResults.module.config;
        }
    }
    if (!isString(buildResults.hydrateAppFilePath)) {
        diagnostics.push({ messageText: `Missing hydrateAppFilePath`, level: `error`, type: `ssr` });
    }
    else if (!isString(devServerConfig.srcIndexHtml)) {
        diagnostics.push({ messageText: `Missing srcIndexHtml`, level: `error`, type: `ssr` });
    }
    else {
        srcIndexHtml = await serverCtx.sys.readFile(devServerConfig.srcIndexHtml);
        if (!isString(srcIndexHtml)) {
            diagnostics.push({
                messageText: `Unable to load src index html: ${devServerConfig.srcIndexHtml}`,
                level: `error`,
                type: `ssr`,
            });
        }
        else {
            // ensure we cleared out node's internal require() cache for this file
            const hydrateAppFilePath = path__default['default'].resolve(buildResults.hydrateAppFilePath);
            // brute force way of clearning node's module cache
            // not using `delete require.cache[id]` since it'll cause memory leaks
            require.cache = {};
            const Module = require('module');
            Module._cache[hydrateAppFilePath] = undefined;
            hydrateApp = require(hydrateAppFilePath);
        }
    }
    return {
        hydrateApp,
        srcIndexHtml,
        diagnostics,
    };
}
function getSsrHydrateOptions(devServerConfig, serverCtx, url) {
    const opts = {
        url: url.href,
        addModulePreloads: false,
        approximateLineWidth: 120,
        inlineExternalStyleSheets: false,
        minifyScriptElements: false,
        minifyStyleElements: false,
        removeAttributeQuotes: false,
        removeBooleanAttributeQuotes: false,
        removeEmptyAttributes: false,
        removeHtmlComments: false,
        prettyHtml: true,
    };
    const prerenderConfig = serverCtx === null || serverCtx === void 0 ? void 0 : serverCtx.prerenderConfig;
    if (isFunction(prerenderConfig === null || prerenderConfig === void 0 ? void 0 : prerenderConfig.hydrateOptions)) {
        const userOpts = prerenderConfig.hydrateOptions(url);
        if (userOpts) {
            Object.assign(opts, userOpts);
        }
    }
    if (isFunction(serverCtx.sys.applyPrerenderGlobalPatch)) {
        const orgBeforeHydrate = opts.beforeHydrate;
        opts.beforeHydrate = (document) => {
            // patch this new window with the fetch global from node-fetch
            const devServerBaseUrl = new URL(devServerConfig.browserUrl);
            const devServerHostUrl = devServerBaseUrl.origin;
            serverCtx.sys.applyPrerenderGlobalPatch({
                devServerHostUrl: devServerHostUrl,
                window: document.defaultView,
            });
            if (typeof orgBeforeHydrate === 'function') {
                return orgBeforeHydrate(document);
            }
        };
    }
    return opts;
}
function getSsrErrorContent(diagnostics) {
    return `<!doctype html>
<html>
<head>
  <title>SSR Error</title>
  <style>
    body {
      font-family: Consolas, 'Liberation Mono', Menlo, Courier, monospace !important;
    }
  </style>
</head>
<body>
  <h1>SSR Dev Error</h1>
  ${diagnostics.map(diagnostic => `
  <p>
    ${diagnostic.messageText}
  </p>
  `)}
</body>
</html>`;
}

function createRequestHandler(devServerConfig, serverCtx) {
    return async function (incomingReq, res) {
        try {
            const req = normalizeHttpRequest(devServerConfig, incomingReq);
            if (!req.url) {
                return serverCtx.serve302(req, res);
            }
            if (isDevClient(req.pathname) && devServerConfig.websocket) {
                return serveDevClient(devServerConfig, serverCtx, req, res);
            }
            if (isDevModule(req.pathname)) {
                return serveDevNodeModule(serverCtx, req, res);
            }
            if (!isValidUrlBasePath(devServerConfig.basePath, req.url)) {
                return serverCtx.serve404(req, res, `invalid basePath`, `404 File Not Found, base path: ${devServerConfig.basePath}`);
            }
            if (devServerConfig.ssr) {
                if (isExtensionLessPath(req.url.pathname)) {
                    return ssrPageRequest(devServerConfig, serverCtx, req, res);
                }
                if (isSsrStaticDataPath(req.url.pathname)) {
                    return ssrStaticDataRequest(devServerConfig, serverCtx, req, res);
                }
            }
            req.stats = await serverCtx.sys.stat(req.filePath);
            if (req.stats.isFile) {
                return serveFile(devServerConfig, serverCtx, req, res);
            }
            if (req.stats.isDirectory) {
                return serveDirectoryIndex(devServerConfig, serverCtx, req, res);
            }
            const xSource = ['notfound'];
            const validHistoryApi = isValidHistoryApi(devServerConfig, req);
            xSource.push(`validHistoryApi: ${validHistoryApi}`);
            if (validHistoryApi) {
                try {
                    const indexFilePath = path__default['default'].join(devServerConfig.root, devServerConfig.historyApiFallback.index);
                    xSource.push(`indexFilePath: ${indexFilePath}`);
                    req.stats = await serverCtx.sys.stat(indexFilePath);
                    if (req.stats.isFile) {
                        req.filePath = indexFilePath;
                        return serveFile(devServerConfig, serverCtx, req, res);
                    }
                }
                catch (e) {
                    xSource.push(`notfound error: ${e}`);
                }
            }
            return serverCtx.serve404(req, res, xSource.join(', '));
        }
        catch (e) {
            return serverCtx.serve500(incomingReq, res, e, `not found error`);
        }
    };
}
function isValidUrlBasePath(basePath, url) {
    // normalize the paths to always end with a slash for the check
    let pathname = url.pathname;
    if (!pathname.endsWith('/')) {
        pathname += '/';
    }
    if (!basePath.endsWith('/')) {
        basePath += '/';
    }
    return pathname.startsWith(basePath);
}
function normalizeHttpRequest(devServerConfig, incomingReq) {
    const req = {
        method: (incomingReq.method || 'GET').toUpperCase(),
        headers: incomingReq.headers,
        acceptHeader: (incomingReq.headers && typeof incomingReq.headers.accept === 'string' && incomingReq.headers.accept) || '',
        host: (incomingReq.headers && typeof incomingReq.headers.host === 'string' && incomingReq.headers.host) || null,
        url: null,
        searchParams: null,
    };
    const incomingUrl = (incomingReq.url || '').trim() || null;
    if (incomingUrl) {
        if (req.host) {
            req.url = new URL(incomingReq.url, `http://${req.host}`);
        }
        else {
            req.url = new URL(incomingReq.url, `http://dev.stenciljs.com`);
        }
        req.searchParams = req.url.searchParams;
    }
    if (req.url) {
        const parts = req.url.pathname.replace(/\\/g, '/').split('/');
        req.pathname = parts.map(part => decodeURIComponent(part)).join('/');
        if (req.pathname.length > 0 && !isDevClient(req.pathname)) {
            req.pathname = '/' + req.pathname.substring(devServerConfig.basePath.length);
        }
        req.filePath = normalizePath(path__default['default'].normalize(path__default['default'].join(devServerConfig.root, path__default['default'].relative('/', req.pathname))));
    }
    return req;
}
function isValidHistoryApi(devServerConfig, req) {
    if (!devServerConfig.historyApiFallback) {
        return false;
    }
    if (req.method !== 'GET') {
        return false;
    }
    if (!req.acceptHeader.includes('text/html')) {
        return false;
    }
    if (!devServerConfig.historyApiFallback.disableDotRule && req.pathname.includes('.')) {
        return false;
    }
    return true;
}

function createHttpServer(devServerConfig, serverCtx) {
    // create our request handler
    const reqHandler = createRequestHandler(devServerConfig, serverCtx);
    const credentials = devServerConfig.https;
    return credentials ? https.createServer(credentials, reqHandler) : http.createServer(reqHandler);
}
async function findClosestOpenPort(host, port) {
    async function t(portToCheck) {
        const isTaken = await isPortTaken(host, portToCheck);
        if (!isTaken) {
            return portToCheck;
        }
        return t(portToCheck + 1);
    }
    return t(port);
}
function isPortTaken(host, port) {
    return new Promise((resolve, reject) => {
        const tester = net.createServer()
            .once('error', () => {
            resolve(true);
        })
            .once('listening', () => {
            tester
                .once('close', () => {
                resolve(false);
            })
                .close();
        })
            .on('error', (err) => {
            reject(err);
        })
            .listen(port, host);
    });
}

function createWebSocket(httpServer, onMessageFromClient) {
    const wsConfig = {
        server: httpServer,
    };
    const wsServer = new ws.Server(wsConfig);
    function heartbeat() {
        this.isAlive = true;
    }
    wsServer.on('connection', (ws) => {
        ws.on('message', data => {
            // the server process has received a message from the browser
            // pass the message received from the browser to the main cli process
            try {
                onMessageFromClient(JSON.parse(data.toString()));
            }
            catch (e) {
                console.error(e);
            }
        });
        ws.isAlive = true;
        ws.on('pong', heartbeat);
    });
    const pingInternval = setInterval(() => {
        wsServer.clients.forEach((ws) => {
            if (!ws.isAlive) {
                return ws.close(1000);
            }
            ws.isAlive = false;
            ws.ping(noop);
        });
    }, 10000);
    return {
        sendToBrowser: (msg) => {
            if (msg && wsServer && wsServer.clients) {
                const data = JSON.stringify(msg);
                wsServer.clients.forEach(ws => {
                    if (ws.readyState === ws.OPEN) {
                        ws.send(data);
                    }
                });
            }
        },
        close: () => {
            return new Promise((resolve, reject) => {
                clearInterval(pingInternval);
                wsServer.clients.forEach(ws => {
                    ws.close(1000);
                });
                wsServer.close(err => {
                    if (err) {
                        reject(err);
                    }
                    else {
                        resolve();
                    }
                });
            });
        },
    };
}

function createCommonjsModule(fn, basedir, module) {
	return module = {
		path: basedir,
		exports: {},
		require: function (path, base) {
			return commonjsRequire(path, (base === undefined || base === null) ? module.path : base);
		}
	}, fn(module, module.exports), module.exports;
}

function commonjsRequire () {
	throw new Error('Dynamic requires are not currently supported by @rollup/plugin-commonjs');
}

let isDocker;

function hasDockerEnv() {
	try {
		fs__default$1['default'].statSync('/.dockerenv');
		return true;
	} catch (_) {
		return false;
	}
}

function hasDockerCGroup() {
	try {
		return fs__default$1['default'].readFileSync('/proc/self/cgroup', 'utf8').includes('docker');
	} catch (_) {
		return false;
	}
}

var isDocker_1 = () => {
	if (isDocker === undefined) {
		isDocker = hasDockerEnv() || hasDockerCGroup();
	}

	return isDocker;
};

var isWsl_1 = createCommonjsModule(function (module) {




const isWsl = () => {
	if (process.platform !== 'linux') {
		return false;
	}

	if (os__default['default'].release().toLowerCase().includes('microsoft')) {
		if (isDocker_1()) {
			return false;
		}

		return true;
	}

	try {
		return fs__default$1['default'].readFileSync('/proc/version', 'utf8').toLowerCase().includes('microsoft') ?
			!isDocker_1() : false;
	} catch (_) {
		return false;
	}
};

if (process.env.__IS_WSL_TEST__) {
	module.exports = isWsl;
} else {
	module.exports = isWsl();
}
});

const {promisify} = util__default['default'];






const pAccess = promisify(fs__default$1['default'].access);
const pExecFile = promisify(childProcess__default['default'].execFile);

// Path to included `xdg-open`.
const localXdgOpenPath = path__default['default'].join(__dirname, 'xdg-open');

// Convert a path from WSL format to Windows format:
// `/mnt/c/Program Files/Example/MyApp.exe` → `C:\Program Files\Example\MyApp.exe`
const wslToWindowsPath = async path => {
	const {stdout} = await pExecFile('wslpath', ['-w', path]);
	return stdout.trim();
};

// Convert a path from Windows format to WSL format
const windowsToWslPath = async path => {
	const {stdout} = await pExecFile('wslpath', [path]);
	return stdout.trim();
};

// Get an environment variable from Windows
const wslGetWindowsEnvVar = async envVar => {
	const {stdout} = await pExecFile('wslvar', [envVar]);
	return stdout.trim();
};

var open = async (target, options) => {
	if (typeof target !== 'string') {
		throw new TypeError('Expected a `target`');
	}

	options = {
		wait: false,
		background: false,
		allowNonzeroExitCode: false,
		...options
	};

	let command;
	let {app} = options;
	let appArguments = [];
	const cliArguments = [];
	const childProcessOptions = {};

	if (Array.isArray(app)) {
		appArguments = app.slice(1);
		app = app[0];
	}

	if (process.platform === 'darwin') {
		command = 'open';

		if (options.wait) {
			cliArguments.push('--wait-apps');
		}

		if (options.background) {
			cliArguments.push('--background');
		}

		if (app) {
			cliArguments.push('-a', app);
		}
	} else if (process.platform === 'win32' || (isWsl_1 && !isDocker_1())) {
		const windowsRoot = isWsl_1 ? await wslGetWindowsEnvVar('systemroot') : process.env.SYSTEMROOT;
		command = String.raw`${windowsRoot}\System32\WindowsPowerShell\v1.0\powershell${isWsl_1 ? '.exe' : ''}`;
		cliArguments.push(
			'-NoProfile',
			'-NonInteractive',
			'–ExecutionPolicy',
			'Bypass',
			'-EncodedCommand'
		);

		if (isWsl_1) {
			command = await windowsToWslPath(command);
		} else {
			childProcessOptions.windowsVerbatimArguments = true;
		}

		const encodedArguments = ['Start'];

		if (options.wait) {
			encodedArguments.push('-Wait');
		}

		if (app) {
			if (isWsl_1 && app.startsWith('/mnt/')) {
				const windowsPath = await wslToWindowsPath(app);
				app = windowsPath;
			}

			// Double quote with double quotes to ensure the inner quotes are passed through.
			// Inner quotes are delimited for PowerShell interpretation with backticks.
			encodedArguments.push(`"\`"${app}\`""`, '-ArgumentList');
			appArguments.unshift(target);
		} else {
			encodedArguments.push(`"\`"${target}\`""`);
		}

		if (appArguments.length > 0) {
			appArguments = appArguments.map(arg => `"\`"${arg}\`""`);
			encodedArguments.push(appArguments.join(','));
		}

		// Using Base64-encoded command, accepted by PowerShell, to allow special characters.
		target = Buffer.from(encodedArguments.join(' '), 'utf16le').toString('base64');
	} else {
		if (app) {
			command = app;
		} else {
			// When bundled by Webpack, there's no actual package file path and no local `xdg-open`.
			const isBundled = !__dirname || __dirname === '/';

			// Check if local `xdg-open` exists and is executable.
			let exeLocalXdgOpen = false;
			try {
				await pAccess(localXdgOpenPath, fs__default$1['default'].constants.X_OK);
				exeLocalXdgOpen = true;
			} catch (_) {}

			const useSystemXdgOpen = process.versions.electron ||
				process.platform === 'android' || isBundled || !exeLocalXdgOpen;
			command = useSystemXdgOpen ? 'xdg-open' : localXdgOpenPath;
		}

		if (appArguments.length > 0) {
			cliArguments.push(...appArguments);
		}

		if (!options.wait) {
			// `xdg-open` will block the process unless stdio is ignored
			// and it's detached from the parent even if it's unref'd.
			childProcessOptions.stdio = 'ignore';
			childProcessOptions.detached = true;
		}
	}

	cliArguments.push(target);

	if (process.platform === 'darwin' && appArguments.length > 0) {
		cliArguments.push('--args', ...appArguments);
	}

	const subprocess = childProcess__default['default'].spawn(command, cliArguments, childProcessOptions);

	if (options.wait) {
		return new Promise((resolve, reject) => {
			subprocess.once('error', reject);

			subprocess.once('close', exitCode => {
				if (options.allowNonzeroExitCode && exitCode > 0) {
					reject(new Error(`Exited with code ${exitCode}`));
					return;
				}

				resolve(subprocess);
			});
		});
	}

	subprocess.unref();

	return subprocess;
};

async function openInBrowser(opts) {
    // await open(opts.url, { app: ['google chrome', '--auto-open-devtools-for-tabs'] });
    await open(opts.url);
}

function initServerProcess(sendMsg) {
    let server = null;
    let webSocket = null;
    let serverCtx = null;
    const buildResultsResolves = [];
    const compilerRequestResolves = [];
    const startServer = async (msg) => {
        const devServerConfig = msg.startServer;
        devServerConfig.port = await findClosestOpenPort(devServerConfig.address, devServerConfig.port);
        devServerConfig.browserUrl = getBrowserUrl(devServerConfig.protocol, devServerConfig.address, devServerConfig.port, devServerConfig.basePath, '/');
        devServerConfig.root = normalizePath(devServerConfig.root);
        const sys = index_js.createNodeSys({ process });
        serverCtx = createServerContext(sys, sendMsg, devServerConfig, buildResultsResolves, compilerRequestResolves);
        server = createHttpServer(devServerConfig, serverCtx);
        webSocket = devServerConfig.websocket ? createWebSocket(server, sendMsg) : null;
        server.listen(devServerConfig.port, devServerConfig.address);
        serverCtx.isServerListening = true;
        if (devServerConfig.openBrowser) {
            const initialLoadUrl = getBrowserUrl(devServerConfig.protocol, devServerConfig.address, devServerConfig.port, devServerConfig.basePath, devServerConfig.initialLoadUrl || DEV_SERVER_INIT_URL);
            openInBrowser({ url: initialLoadUrl });
        }
        sendMsg({ serverStarted: devServerConfig });
    };
    const closeServer = () => {
        const promises = [];
        buildResultsResolves.forEach(r => r.reject('dev server closed'));
        buildResultsResolves.length = 0;
        compilerRequestResolves.forEach(r => r.reject('dev server closed'));
        compilerRequestResolves.length = 0;
        if (serverCtx) {
            if (serverCtx.sys) {
                promises.push(serverCtx.sys.destroy());
            }
        }
        if (webSocket) {
            promises.push(webSocket.close());
            webSocket = null;
        }
        if (server) {
            promises.push(new Promise(resolve => {
                server.close(err => {
                    if (err) {
                        console.error(`close error: ${err}`);
                    }
                    resolve();
                });
            }));
        }
        Promise.all(promises).finally(() => {
            sendMsg({
                serverClosed: true,
            });
        });
    };
    const receiveMessageFromMain = (msg) => {
        // the server process received a message from main thread
        try {
            if (msg) {
                if (msg.startServer) {
                    startServer(msg);
                }
                else if (msg.closeServer) {
                    closeServer();
                }
                else if (msg.compilerRequestResults) {
                    for (let i = compilerRequestResolves.length - 1; i >= 0; i--) {
                        const r = compilerRequestResolves[i];
                        if (r.path === msg.compilerRequestResults.path) {
                            r.resolve(msg.compilerRequestResults);
                            compilerRequestResolves.splice(i, 1);
                        }
                    }
                }
                else if (serverCtx) {
                    if (msg.buildResults && !msg.isActivelyBuilding) {
                        buildResultsResolves.forEach(r => r.resolve(msg.buildResults));
                        buildResultsResolves.length = 0;
                    }
                    if (webSocket) {
                        webSocket.sendToBrowser(msg);
                    }
                }
            }
        }
        catch (e) {
            sendMsg({
                error: { message: e + '', stack: (e === null || e === void 0 ? void 0 : e.stack) ? e.stack : null },
            });
        }
    };
    return receiveMessageFromMain;
}

exports.initServerProcess = initServerProcess;
