LoRaWAN-Signal-Mapping/server/index.mjs

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

// 1: Setup & Imports
import c from './bootstrap/container.mjs';

import show_help from './help.mjs';
import { decode_payload } from './ttn-app-server/DecodePayload.mjs';

const settings = c.resolve("settings");
const a = c.resolve("ansi");
const l = c.resolve("log");

// 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(`${a.fred}${a.hicol}Error: No subcommand specified.${a.reset}`);
	show_help(settings);
	process.exit();
}

l.log(`${a.fgreen}${a.hicol}*** LoRaWAN Signal Mapper ***${a.reset}`);

switch(extras[0]) {
	case "ttn-app-server":
		l.log(`${a.fgreen}${a.hicol}Starting The Things Network application server${a.reset}`);
		
		let app_server = c.resolve("TTNAppServer");
		app_server.run();
		break;
	
	case "decode-test":
		l.log(`${a.fgreen}${a.hicol}Decoding message${a.reset}`);
		if(process.argv.length < 4) {
			l.error("No message specified. Specify the message to decode in single quotes directly after 'decode-test'.");
			process.exit(1);
		}
		l.log("Input: ", process.argv[3]);
		l.log("Output: ", decode_payload(process.argv[3]));
		break;
	
	default:
		console.error(`${a.fred}${a.hicol}Error: Subcommand '${extras[0]}' not recognised.${a.reset}`);
		console.error( `${a.fred}Perhaps you mistyped it, or it hasn't been implemented yet?`);
		process.exit(1);
		break;
}