LoRaWAN-Signal-Mapping/server/Helpers/Log.mjs

"use strict";

import Ansi from './Ansi.mjs';

class Log {
	// Destructure the awilix container
	constructor({ settings, ansi }) {
		this.settings = settings;
		/** @type {Ansi} */
		this.a = ansi;
		
		this.start_time = new Date();
		
		// FUTURE: We could add a log target (e.g. a file etc.) here if required
	}
	
	log_raw(func, ...items) {
		if(this.settings.logging.date_display_mode == "none") {
			func(...items);
			return; 
		}
		let prefix = (new Date()).toISOString();
		if(this.settings.logging.date_display_mode == "relative") {
			prefix = ((new Date() - this.start_time) / 1000).toFixed(3);
		}
		
		func(`${this.a.locol}[${prefix}]${this.a.reset}`, ...items);
	}
	log_e(...items) { this.log_raw(console.error, ...items); }
	log(...items) { this.log_raw(console.log, ...items); }
	info(...items) { this.log_raw(console.info, ...items); }
	debug(...items) { this.log_raw(console.debug, ...items); }
	warn(...items) {
		this.log_raw(console.warn,
			this.a.hicol + this.a.fyellow,
			...items,
			this.a.reset
		);
	}
	error(...items) {
		this.log_raw(console.error,
			this.a.hicol + this.a.fred,
			...items,
			this.a.reset
		);
	}
}

export default Log;