first commit

main.js

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+// Required Modules
+var lb = require("lemonbar");
+var wifi = require('node-wifi');
+const monitor = require('node-active-window');
+const jsonfile = require('jsonfile')
+const battery = require("battery");
+const fs = require('fs');
+const os = require('os');
+
+const isNotDefined = require("is-not-defined");
+
+
+function cpuUsage(cb, core, sampleMs) {
+    var deltaUsed;
+    var deltaIdle;
+    var timesKeys = ["user", "nice", "sys", "irq"];
+  
+    var allCores = null === core || !(core > -1);
+  
+    var byCore = (cpu, i) => allCores || core === i;
+  
+    var bySampleKey = (sample, key) => sample.filter(byCore).reduce((sum, cpu) => sum + cpu.times[key], 0);
+  
+    var sample0 = os.cpus();
+  
+    setTimeout(function() {
+        var sample1 = os.cpus();
+  
+        deltaUsed = timesKeys.reduce(
+            (diff, key) => diff + bySampleKey(sample1, key) - bySampleKey(sample0, key), 0);
+  
+        deltaIdle = bySampleKey(sample1, "idle") - bySampleKey(sample0, "idle");
+  
+        if ("function" === typeof cb) {
+            cb(100 * (deltaUsed / (deltaUsed + deltaIdle)));
+        }
+    }, sampleMs || 1000);
+  }
+
+process.on('uncaughtException', err => {
+    console.error('There was an uncaught error', err)
+    process.exit(1) //mandatory (as per the Node.js docs)
+})
+
+
+
+// The cache file
+const file = '/home/raven/Documents/cache.json'
+
+// Launching Main PID for LemonBar
+lb.launch({
+    lemonbar: "/usr/bin/lemonbar",         // Lemonbar binary
+    shell: "/bin/sh",                      // Shell to use for actions
+    shelloutput: true,                     // Print shell STDOUT
+
+    background: "#000",                    // Background color (#rgb, #rrggbb, #aarrggbb)
+    foreground: "#000",                    // Foreground color
+    lineWidth: 1, lineColor: "#666",       // Underline/Overline config
+    geometry: {                            // Window geometry
+        x: 0, y: 0,
+        width: null, height: 25
+    },
+
+    bottom: false,                         // Dock bar at bottom instead of top
+    forceDocking: false,                   // Force docking without asking the window manager
+    name: null,                            // Set the WM_NAME atom value for the bar
+    areas: 10                              // Number of clickable areas
+
+})
+
+// This must be async for battery level and charging detection
+async function update() {
+
+    const { level, charging } = await battery();
+
+    // Lets check our cache files mtime to see if we need to check the current SSID yet
+    fs.stat(file, function (err, stats) {
+        let seconds = (new Date().getTime() - stats.mtime) / 1000;
+        // If the mtime for the cache is over 1 hour, lets poll for a new SSID
+        if (seconds > 3600) {
+
+            // Init the card
+            wifi.init({
+                iface: null // network interface, choose a random wifi interface if set to null
+            });
+
+            // Grab the current Wifi SSID and details 
+            wifi.getCurrentConnections((error, currentConnections) => {
+                if (error) {
+                    console.log(error);
+                } else {
+                    // If no error, write the result to the cache
+                    const obj = { ssid: currentConnections[0].ssid }
+
+                    jsonfile.writeFile(file, obj, function (err) {
+                        if (err) console.error(err)
+                        console.log("WifiCache Is Written")
+                    })
+                }
+            })
+        }
+        // Start main program printing & Check CPU
+        // cpu.usage()
+        //     .then(cpuPercentage => {
+        //         lb.append(lb.left + "RavenScott | CPU: ".lbFg("#fff") + cpuPercentage.toString().lbFg("#fff"))
+        //     })
+
+        cpuUsage(perc => lb.append(lb.left + "RavenScott | CPU: ".lbFg("#fff") + (Math.round(perc * 100) / 100).toFixed(2).lbFg("#fff")));
+
+
+        // Check the cache SSID
+        jsonfile.readFile(file, function (err, obj) {
+            if (err) console.error(err)
+            // Set a new var containing the ID
+            let wifiSSID = obj.ssid
+
+            // If charging show its status, else, show nothing for charging
+            if (charging) {
+                lb.append(lb.right + (" " + new Date().toDateString().lbFg("#fff") + " | BAT: ".lbFg("#fff") + level.toString().lbFg("#fff") + " (Charging)".lbFg("#fff") + " " + "| WIFI: ".lbFg("#fff") + wifiSSID.ssid.lbFg("#fff")).lbSwap)
+            } else {
+
+                lb.append(lb.right + (" " + new Date().toDateString().lbFg("#fff") + " | BAT: ".lbFg("#fff") + level.toString().lbFg("#fff") + " " + "| WIFI: ".lbFg("#fff") + wifiSSID.toString().lbFg("#fff")).lbSwap)
+            }
+
+
+            monitor.getActiveWindow((err, window) => {
+                if (!err) {
+                    lb.append((lb.center + window.app.lbFg("#fff")))
+
+                } else
+                    console.log(err)
+            });      // Grab the active window and and page name
+
+            // Write the data to lemonbar
+            lb.write()
+
+        })
+
+
+    })
+
+}
+
+update()
+
+// Update current time every second
+setTimeout(function () {
+    update()
+    setInterval(update, 1500)
+}, 1500 - new Date().getMilliseconds())