83 lines
1.8 KiB
TypeScript
83 lines
1.8 KiB
TypeScript
/* eslint-disable no-process-exit, unicorn/no-process-exit */
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import { app } from "../app.js";
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import http from "node:http";
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import * as configFunctions from "../helpers/functions.config.js";
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import exitHook from "exit-hook";
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import debug from "debug";
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const debugWWW = debug("lot-occupancy-system:www");
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let httpServer: http.Server;
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interface ServerError extends Error {
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syscall: string;
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code: string;
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}
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const onError = (error: ServerError) => {
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if (error.syscall !== "listen") {
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throw error;
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}
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// handle specific listen errors with friendly messages
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switch (error.code) {
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// eslint-disable-next-line no-fallthrough
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case "EACCES": {
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debugWWW("Requires elevated privileges");
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process.exit(1);
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// break;
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}
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// eslint-disable-next-line no-fallthrough
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case "EADDRINUSE": {
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debugWWW("Port is already in use.");
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process.exit(1);
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// break;
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}
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// eslint-disable-next-line no-fallthrough
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default: {
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throw error;
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}
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}
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};
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const onListening = (server: http.Server) => {
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const addr = server.address();
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if (addr) {
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const bind = typeof addr === "string" ? "pipe " + addr : "port " + addr.port.toString();
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debugWWW("Listening on " + bind);
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}
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};
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/**
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* Initialize HTTP
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*/
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const httpPort = configFunctions.getProperty("application.httpPort");
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if (httpPort) {
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httpServer = http.createServer(app);
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httpServer.listen(httpPort);
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httpServer.on("error", onError);
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httpServer.on("listening", () => {
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onListening(httpServer);
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});
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debugWWW("HTTP listening on " + httpPort.toString());
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}
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exitHook(() => {
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if (httpServer) {
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debugWWW("Closing HTTP");
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httpServer.close();
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}
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});
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