From f90799c67945f2323a108a2a507c94db48047207 Mon Sep 17 00:00:00 2001
From: r-freeman <hello@ryanfreeman.dev>
Date: Fri, 10 Feb 2023 17:02:15 +0000
Subject: [PATCH] Added more pi metrics to dashboard

---
 lib/grafana.ts              | 70 +++++++++++++++++++++++++++++++++++--
 pages/api/grafana/rootfs.ts |  8 +++++
 pages/api/grafana/temp.ts   |  4 +--
 pages/api/grafana/uptime.ts |  8 +++++
 pages/dashboard.tsx         | 26 ++++++++++++--
 5 files changed, 109 insertions(+), 7 deletions(-)
 create mode 100644 pages/api/grafana/rootfs.ts
 create mode 100644 pages/api/grafana/uptime.ts

diff --git a/lib/grafana.ts b/lib/grafana.ts
index 26ed093..5e6310a 100644
--- a/lib/grafana.ts
+++ b/lib/grafana.ts
@@ -3,7 +3,7 @@ import fetcher from '@/lib/fetcher'
 const GRAFANA_URL = process.env.GRAFANA_URL
 const GRAFANA_TOKEN = process.env.GRAFANA_TOKEN
 
-export const getPiTemp = async () => {
+export const getTemp = async () => {
     const response = await fetcher(GRAFANA_URL, {
         method: 'POST',
         headers: {
@@ -19,7 +19,7 @@ export const getPiTemp = async () => {
                         "type": "prometheus"
                     },
                     "expr": "node_hwmon_temp_celsius",
-                    "maxDataPoints": 612
+                    "maxDataPoints": 100
                 }
             ],
             "from": "now-5m",
@@ -30,4 +30,70 @@ export const getPiTemp = async () => {
     return {
         temp: response.results.A.frames[0].data.values[1][15].toFixed(2)
     }
+}
+
+export const getRootFsUsage = async () => {
+    const response = await fetcher(GRAFANA_URL, {
+        method: 'POST',
+        headers: {
+            Authorization: `Bearer ${GRAFANA_TOKEN}`,
+            'Accept': 'application/json',
+            'Content-Type': 'application/json'
+        },
+        body: JSON.stringify({
+            "queries": [
+                {
+                    "datasource": {
+                        "uid": "4f-R6jgRz",
+                        "type": "prometheus"
+                    },
+                    "expr": "100 - ((node_filesystem_avail_bytes{mountpoint='/',fstype!='rootfs'} * 100) / node_filesystem_size_bytes{mountpoint='/',fstype!='rootfs'})",
+                    "maxDataPoints": 100
+                }
+            ],
+            "from": "now-5m",
+            "to": "now"
+        })
+    })
+
+    return {
+        usage: response.results.A.frames[0].data.values[1][15].toFixed(2)
+    }
+}
+
+export const getUptime = async () => {
+    const response = await fetcher(GRAFANA_URL, {
+        method: 'POST',
+        headers: {
+            Authorization: `Bearer ${GRAFANA_TOKEN}`,
+            'Accept': 'application/json',
+            'Content-Type': 'application/json'
+        },
+        body: JSON.stringify({
+            "queries": [
+                {
+                    "datasource": {
+                        "uid": "4f-R6jgRz",
+                        "type": "prometheus"
+                    },
+                    "expr": "node_time_seconds - node_boot_time_seconds",
+                    "maxDataPoints": 100
+                }
+            ],
+            "from": "now-5m",
+            "to": "now"
+        })
+    })
+
+    const seconds = response.results.A.frames[0].data.values[1][15]
+    const minutes = (seconds / 60).toFixed(2)
+    const hours = (seconds / 3_600).toFixed(2)
+    const weeks = (seconds / 604_800).toFixed(2)
+
+    return {
+        seconds: (seconds).toFixed(2),
+        minutes,
+        hours,
+        weeks
+    }
 }
\ No newline at end of file
diff --git a/pages/api/grafana/rootfs.ts b/pages/api/grafana/rootfs.ts
new file mode 100644
index 0000000..d622eb6
--- /dev/null
+++ b/pages/api/grafana/rootfs.ts
@@ -0,0 +1,8 @@
+import {NextApiRequest, NextApiResponse} from 'next'
+import {getRootFsUsage} from '@/lib/grafana'
+
+export default async function handler(req: NextApiRequest, res: NextApiResponse) {
+    const response = await getRootFsUsage()
+
+    return res.status(200).json(response)
+}
\ No newline at end of file
diff --git a/pages/api/grafana/temp.ts b/pages/api/grafana/temp.ts
index 5396be0..290a83d 100644
--- a/pages/api/grafana/temp.ts
+++ b/pages/api/grafana/temp.ts
@@ -1,8 +1,8 @@
 import {NextApiRequest, NextApiResponse} from 'next'
-import {getPiTemp} from '@/lib/grafana'
+import {getTemp} from '@/lib/grafana'
 
 export default async function handler(req: NextApiRequest, res: NextApiResponse) {
-    const response = await getPiTemp()
+    const response = await getTemp()
 
     return res.status(200).json(response)
 }
\ No newline at end of file
diff --git a/pages/api/grafana/uptime.ts b/pages/api/grafana/uptime.ts
new file mode 100644
index 0000000..8c70f7b
--- /dev/null
+++ b/pages/api/grafana/uptime.ts
@@ -0,0 +1,8 @@
+import {NextApiRequest, NextApiResponse} from 'next'
+import {getUptime} from '@/lib/grafana'
+
+export default async function handler(req: NextApiRequest, res: NextApiResponse) {
+    const response = await getUptime()
+
+    return res.status(200).json(response)
+}
\ No newline at end of file
diff --git a/pages/dashboard.tsx b/pages/dashboard.tsx
index 85d05d9..3912c06 100644
--- a/pages/dashboard.tsx
+++ b/pages/dashboard.tsx
@@ -10,10 +10,14 @@ import {getDashboardData} from '@/lib/dashboard'
 import fetcher from '@/lib/fetcher'
 import type {MetricGroup} from '@/types'
 
+const config = {
+    refreshInterval: 30000
+}
+
 export default function Dashboard({metrics}: { metrics: MetricGroup }) {
-    const {data: tempData} = useSWR('api/grafana/temp', fetcher, {
-        refreshInterval: 30000
-    })
+    const {data: tempData} = useSWR('api/grafana/temp', fetcher, config)
+    const {data: rootFsData} = useSWR('api/grafana/rootfs', fetcher, config)
+    const {data: uptimeData} = useSWR('api/grafana/uptime', fetcher, config)
 
     return (
         <>
@@ -60,6 +64,22 @@ export default function Dashboard({metrics}: { metrics: MetricGroup }) {
                             {tempData ? `${tempData.temp} ℃` : "—"}
                         </Card.Description>
                     </Card>
+                    <Card as="li">
+                        <h2 className="text-base font-semibold transition group-hover:text-indigo-500 text-zinc-800 dark:text-zinc-400">
+                            <Card.Link href="#">Root FS usage</Card.Link>
+                        </h2>
+                        <Card.Description className="mt-0 text-zinc-800 dark:text-zinc-100 font-semibold text-3xl">
+                            {rootFsData ? `${rootFsData.usage} %` : "—"}
+                        </Card.Description>
+                    </Card>
+                    <Card as="li">
+                        <h2 className="text-base font-semibold transition group-hover:text-indigo-500 text-zinc-800 dark:text-zinc-400">
+                            <Card.Link href="#">Uptime minutes</Card.Link>
+                        </h2>
+                        <Card.Description className="mt-0 text-zinc-800 dark:text-zinc-100 font-semibold text-3xl">
+                            {uptimeData ? `${numberFormat(uptimeData.minutes)}` : "—"}
+                        </Card.Description>
+                    </Card>
                 </CardGroup>
             </SimpleLayout>
         </>