node_helper.js

/* global Module, MMM-ModulePosition */

/* Magic Mirror
 * Module: node_helper
 *
 * By Neil Scott
 * MIT Licensed.
 */

var NodeHelper = require("node_helper");

var moment = require("moment");
//fs = require('fs');
const fs = require('node:fs/promises');

const Log = require("logger");

//pseudo structures for commonality across all modules
//obtained from a helper file of modules

var LOG = require('../MMM-FeedUtilities/LOG');
var RSS = require('../MMM-FeedUtilities/RSS');

//// get required structures and utilities

//const structures = require("../MMM-ChartUtilities/structures");
//const utilities = require("../MMM-ChartUtilities/common");

//const JSONutils = new utilities.JSONutils();
//const configutils = new utilities.configutils();

module.exports = NodeHelper.create({

	start: function () {

		this.debug = true;

		console.log(this.name + ' is started!');
		Log.info(`MMM-ModulePosition node_helper.js started`);

		this.consumerstorage = {}; // contains the config and feedstorage

		this.currentmoduleinstance = '';
		this.logger = {};

	},

	setconfig: function (aconfig) {

		var moduleinstance = aconfig.moduleinstance;
		var config = aconfig.config;

		//store a local copy so we dont have keep moving it about

		this.consumerstorage[moduleinstance] = { config: config, feedstorage: {} };

		//additional work to simplify the config for use in the module
	},

	showstatus: function (moduleinstance) {
		//console.log("MMM Module: " + moduleinstance);
		console.log('============================ start of status ========================================');

		console.log('config for consumer: ' + moduleinstance);

		console.log(this.consumerstorage[moduleinstance].config);

		console.log('============================= end of status =========================================');

	},

	showElapsed: function () {
		endTime = new Date();
		var timeDiff = endTime - startTime; //in ms
		// strip the ms
		timeDiff /= 1000;

		// get seconds 
		var seconds = Math.round(timeDiff);
		return (" " + seconds + " seconds");
	},

	stop: function () {
		console.log("Shutting down node_helper");
	},

	socketNotificationReceived: function (notification, payload) {
		//console.log(this.name + " NODE_HELPER received a socket notification: " + notification + " - Payload: " + payload);

		//we will receive a payload with the moduleinstance of the consumerid in it so we can store data and respond to the correct instance of
		//the caller - i think that this may be possible!!

		if (this.logger[payload.moduleinstance] == null) {

			this.logger[payload.moduleinstance] = LOG.createLogger("logfile_" + payload.moduleinstance + ".log", payload.moduleinstance);

		};

		this.currentmoduleinstance = payload.moduleinstance;

		switch (notification) {
			case "CONFIG": this.setconfig(payload); break;
			case "RESET": this.reset(payload); break;
			case "WRITE_THIS": this.writethis(payload); break;
			case "STATUS": this.showstatus(payload); break;
		}
	},

	writethis: function (payload) {

		//1) create a custom_css set of entries at the module and actual names levels if a duplicate
		//using IDs not classes
		//ignore all ignorable modules and any not active or amended

		var modules = payload.payload;
		var css = '';
		var modCount = 0;

		for (var module in modules) {

			var thismod = modules[module];

			//may need to have them next to each other not a space, a space means any ? 

			if (!thismod.ignore && thismod.state.active && thismod.state.amended) {

				css = css + '.' + thismod.name +
					((thismod.duplicate) ? '#' + module : '') +
					' {' +
					'\n\tleft:' + thismod.modpos.x + "px;" +
					'\n\ttop:' + thismod.modpos.y + "px;" +
					'\n\twidth:' + thismod.modpos.w + "px;" +
					'\n\theight:' + thismod.modpos.h + "px;" +
					'\n\tposition:' + 'absolute' + " !important; /*included to overide the transition static positioning that is added inline */" +
					'\n}' + "\r\n"
				modCount = modCount + 1;

			}
		}

		// dont check if there are no modpos ! just write it

		//create a directory to store these - not under modpos or add the directory as a gitignore

		//alert("BANG");

		var cssfilename = 'modules/MMM-ModulePosition/css/custom.css.' + new Date().getTime(); //simplest format though smelly
		//Log.info(`about to call module writeCSSfile`);

		this.writeCSSfile(cssfilename, css, modCount)

		//fs.writeFile(cssfilename, css, 'utf8', (err) => {
		//	if(err) console.error(err);
		//	console.log('The file has been saved!');
		//	if (this.consumerstorage[this.currentmoduleinstance].config.showAlerts) this.sendNotificationToMasterModule("ALERT", " FILE:" + cssfilename + " saved with " + modCount + " module" + ((modCount>1) ? 's' : '') +" positioned.");
		//});

	},

	sendNotificationToMasterModule: function (stuff, stuff2) {
		this.sendSocketNotification(stuff, stuff2);
	},

	writeCSSfile: function (filename, filecontent, modcount) {
		//Log.info(`In module writeCSSfile`);
		try {
			fs.writeFile(filename, filecontent);
			setTimeout(() => {}, 1000);
			Log.info(`The file has been saved: ${filename}`);
			if (this.consumerstorage[this.currentmoduleinstance].config.showAlerts) this.sendNotificationToMasterModule("ALERT", " NEW CSS FILE:" + filename + " saved with " + modcount + " module" + ((modcount > 1) ? 's' : '') + " positioned.");
		} catch (err) {
			Log.error(err);
		}
	},

});