Initial commit

flow/check_if_new_day.js

@@ -0,0 +1,54 @@
+exports.id = 'checknewday';
+exports.title = 'Check if new day';
+exports.group = 'Worksys';
+exports.color = '#5D9CEC';
+exports.version = '0.0.1';
+exports.output = ['white'];
+exports.input = true;
+exports.author = 'Rastislav Kovac';
+exports.icon = 'cloud-upload';
+
+exports.readme = `Checks, if day changed. If yes, it sends it to connected components`;
+
+const { execSync } = require('child_process');
+
+const weekday = ["Nedele","Pondeli","Uteri","Streda","Ctvrtek","Patek","Sobota"];
+
+function getDate() {
+	// for some reason new Date() function does not set month and year in local timezone, so we use "timedatectl" command
+	let dateFromCommand = execSync("timedatectl", {}).toString();
+
+	let first = dateFromCommand.search("time:");
+	let last = dateFromCommand.search(" CE");
+	dateFromCommand = dateFromCommand.slice(first, last);  //Thu 2022-04-07 13:38:03
+
+	const d = new Date(dateFromCommand);
+	return d;
+}
+
+exports.install = function(instance) {
+
+	let date = null; 
+
+	const checkNewDay = () =>
+	{
+		const d = getDate();
+		const today = d.getDate();	//napr 21 (dvadsiateho prveho)
+
+		if(today !== date)
+		{
+			date = today;
+			const month = d.getMonth(); // 0-11
+			const day = d.getDay(); // 0-6 (0 = nedela)
+			const datum = `${today}.${month + 1}`;
+
+			const result = [datum, weekday[day]];
+			instance.send(0, result);	// ['22.12', 'Streda']
+		}
+	}
+
+	instance.on('data', flowdata => {
+		checkNewDay();
+	})
+
+}