LoRaWAN-Signal-Mapping/server/ttn-app-server/TTNAppServer.mjs

"use strict";

import { data as ttn_data } from 'ttn';

class TTNAppServer {
	// Destructure the awilix container
	constructor({ settings, ansi, message_handler }) {
		this.settings = settings;
		/** @type {Ansi} */
		this.a = ansi;
		/** @type {MessageHandler} */
		this.message_handler = message_handler;
	}
	
	async start() {
		if(this.settings.ttn.app_id == "CHANGE_THIS" || this.settings.ttn.access_key == "CHANGE_THIS") {
			console.error(`${this.a.fred}${this.a.hicol}Error: No TTN app id specified. Try filling in the required values in settings.toml. If they don't exist yet, try using server/settings.default.toml as a reference.${this.a.reset}`);
			return false;
		}
		this.ttn_client = await ttn_data(
			this.settings.ttn.app_id,
			this.settings.ttn.access_key
		);
		
		this.ttn_client.on("uplink", this.handle_message.bind(this));
	}
	
	async handle_message(device_id, payload) {
		await this.message_handler.handle(device_id, payload);
	}
}

export default TTNAppServer;