LoRaWAN-Signal-Mapping/server/index.mjs

#!/usr/bin/env node
"use strict";

import ansi from './Helpers/Ansi.mjs';

import show_help from './help.mjs';
import TTNAppServer from './ttn-app-server/TTNAppServer.mjs';

// 1: Setup
const settings = {
	program_name: "LoRaWAN Signal Mapper",
	version: "v0.1",
	description: "assists in mapping LoRaWAN signal coverage"
};

// 2: CLI Argument Parsing
let args = process.argv.slice(2); // Slice out the node binary name and the filename
let extras = [];
for(let i = 0; i < args.length; i++) {
	if(!args[i].startsWith("-")) {
		extras.push(args[i]);
		continue;
	}
	
	switch(args[i]) {
		case "--help":
		case "-h":
			show_help(settings);
			process.exit();
			break;
		
		case "--version":
		case "-v":
			console.log(program.version);
			break;
		
		// Add more arguments here
	}
}

// 3: Environment Variable Parsing

// process.env.XYZ

// 4: Run
if(extras.length < 1) {
	console.error(`${ansi.fred}${ansi.hicol}Error: No subcommand specified.${ansi.reset}`);
	show_help(settings);
	process.exit();
}

switch(extras[0]) {
	case "ttn-app-server":
		let app_server = new TTNAppServer(settings);
		app_server.run();
		break;
	
	default:
		console.error(`${ansi.fred}${ansi.hicol}Error: Subcommand '${extras[0]}' not recognised.${ansi.reset}`);
		console.error( `${ansi.fred}Perhaps you mistyped it, or it hasn't been implemented yet?`);
		process.exit(1);
		break;
}

// 5: Cleanup