feat: add cpu temp and swap memory to statistics

temp is currently hard-coded to C

also increased system info caching to 1s

controllers/utilsController.js

@@ -815,14 +815,15 @@ const generateStats = async (req, res) => {
 
     if (!data.cache && data.generating) {
       stats[data.title] = false
-    } else if (((Date.now() - data.generatedAt) <= 500) || data.generating) {
+    } else if (((Date.now() - data.generatedAt) <= 1000) || data.generating) {
-      // Use cache for 500 ms (0.5 seconds)
+      // Use cache for 1000 ms (1 second)
       stats[data.title] = data.cache
     } else {
       data.generating = true
       data.generatedAt = Date.now()
 
       const cpu = await si.cpu()
+      const cpuTemperature = await si.cpuTemperature()
       const currentLoad = await si.currentLoad()
       const mem = await si.mem()
       const time = si.time()
@@ -834,6 +835,10 @@ const generateStats = async (req, res) => {
         CPU: `${cpu.cores} \u00d7 ${cpu.manufacturer} ${cpu.brand} @ ${cpu.speed.toFixed(2)}GHz`,
         'CPU Load': `${currentLoad.currentLoad.toFixed(1)}%`,
         'CPUs Load': currentLoad.cpus.map(cpu => `${cpu.load.toFixed(1)}%`).join(', '),
+        'CPU Temperature': {
+          value: cpuTemperature ? cpuTemperature.main : 'Not supported',
+          type: 'tempC' // temp value from this library is hard-coded to C
+        },
         Memory: {
           value: {
             used: mem.active,
@@ -841,6 +846,15 @@ const generateStats = async (req, res) => {
           },
           type: 'byteUsage'
         },
+        Swap: {
+          value: typeof mem.swapused === 'number' && typeof mem.swaptotal === 'number'
+            ? {
+                used: mem.swapused,
+                total: mem.swaptotal
+              }
+            : null,
+          type: 'byteUsage'
+        },
         Uptime: {
           value: Math.floor(time.uptime),
           type: 'uptime'

src/js/dashboard.js

@@ -3045,13 +3045,23 @@ page.getStatistics = (params = {}) => {
                 parsed = page.getPrettyBytes(value)
                 break
               case 'byteUsage': {
-                // Reasoning: https://github.com/sebhildebrandt/systeminformation/issues/464#issuecomment-756406053
+                if (typeof value === 'object') {
-                const totalForPercentage = typeof value.available !== 'undefined'
+                  // Reasoning: https://github.com/sebhildebrandt/systeminformation/issues/464#issuecomment-756406053
-                  ? (value.used + value.available)
+                  const totalForPercentage = value.available !== undefined
-                  : value.total
+                    ? (value.used + value.available)
-                parsed = `${page.getPrettyBytes(value.used)} / ${page.getPrettyBytes(value.total)} (${(value.used / totalForPercentage * 100).toFixed(2)}%)`
+                    : value.total
+                  parsed = `${page.getPrettyBytes(value.used)} / ${page.getPrettyBytes(value.total)} (${(value.used / totalForPercentage * 100).toFixed(2)}%)`
+                } else {
+                  parsed = value
+                }
                 break
               }
+              case 'tempC':
+                // TODO: Unit conversion when required?
+                parsed = typeof value === 'number'
+                  ? `${value} C`
+                  : value
+                break
               case 'uptime':
                 parsed = page.getPrettyUptime(value)
                 break