lazy load charts and disable chart animations

hub/site/package.json

@@ -37,6 +37,7 @@
 		"recharts": "^2.13.0-alpha.4",
 		"tailwind-merge": "^2.4.0",
 		"tailwindcss-animate": "^1.0.7",
+		"use-is-in-viewport": "^1.0.9",
 		"valibot": "^0.36.0"
 	},
 	"devDependencies": {

hub/site/src/components/charts/bandwidth-chart.tsx

@@ -1,12 +1,12 @@
 import { Area, AreaChart, CartesianGrid, XAxis, YAxis } from 'recharts'
 
 import { ChartContainer, ChartTooltip, ChartTooltipContent } from '@/components/ui/chart'
-import { chartTimeData, formatShortDate, useYaxisWidth } from '@/lib/utils'
+import { chartTimeData, cn, formatShortDate, useYaxisWidth } from '@/lib/utils'
-import Spinner from '../spinner'
+// import Spinner from '../spinner'
 import { useStore } from '@nanostores/react'
 import { $chartTime } from '@/lib/stores'
 import { SystemStatsRecord } from '@/types'
-import { useRef } from 'react'
+import { useMemo, useRef } from 'react'
 
 export default function BandwidthChart({
 	ticks,
@@ -19,13 +19,17 @@ export default function BandwidthChart({
 	const yAxisWidth = useYaxisWidth(chartRef)
 	const chartTime = useStore($chartTime)
 
-	if (!systemData.length || !ticks.length) {
+	const yAxisSet = useMemo(() => yAxisWidth !== 180, [yAxisWidth])
-		return <Spinner />
-	}
 
 	return (
 		<div ref={chartRef}>
-			<ChartContainer config={{}} className="h-full w-full absolute aspect-auto">
+			{/* {!yAxisSet && <Spinner />} */}
+			<ChartContainer
+				config={{}}
+				className={cn('h-full w-full absolute aspect-auto bg-card opacity-0 transition-opacity', {
+					'opacity-100': yAxisSet,
+				})}
+			>
 				<AreaChart
 					accessibilityLayer
 					data={systemData}
@@ -80,7 +84,8 @@ export default function BandwidthChart({
 						fill="hsl(var(--chart-5))"
 						fillOpacity={0.4}
 						stroke="hsl(var(--chart-5))"
-						animationDuration={1200}
+						// animationDuration={1200}
+						isAnimationActive={false}
 					/>
 					<Area
 						dataKey="stats.nr"
@@ -89,7 +94,8 @@ export default function BandwidthChart({
 						fill="hsl(var(--chart-2))"
 						fillOpacity={0.4}
 						stroke="hsl(var(--chart-2))"
-						animationDuration={1200}
+						// animationDuration={1200}
+						isAnimationActive={false}
 					/>
 				</AreaChart>
 			</ChartContainer>

hub/site/src/components/charts/container-cpu-chart.tsx

@@ -6,8 +6,8 @@ import {
 	ChartTooltipContent,
 } from '@/components/ui/chart'
 import { useMemo, useRef } from 'react'
-import { chartTimeData, formatShortDate, useYaxisWidth } from '@/lib/utils'
+import { chartTimeData, cn, formatShortDate, useYaxisWidth } from '@/lib/utils'
-import Spinner from '../spinner'
+// import Spinner from '../spinner'
 import { useStore } from '@nanostores/react'
 import { $chartTime } from '@/lib/stores'
 
@@ -22,6 +22,8 @@ export default function ContainerCpuChart({
 	const yAxisWidth = useYaxisWidth(chartRef)
 	const chartTime = useStore($chartTime)
 
+	const yAxisSet = useMemo(() => yAxisWidth !== 180, [yAxisWidth])
+
 	const chartConfig = useMemo(() => {
 		let config = {} as Record<
 			string,
@@ -57,13 +59,19 @@ export default function ContainerCpuChart({
 		return config satisfies ChartConfig
 	}, [chartData])
 
-	if (!chartData.length || !ticks.length) {
+	// if (!chartData.length || !ticks.length) {
-		return <Spinner />
+	// 	return <Spinner />
-	}
+	// }
 
 	return (
 		<div ref={chartRef}>
-			<ChartContainer config={chartConfig} className="h-full w-full absolute aspect-auto">
+			{/* {!yAxisSet && <Spinner />} */}
+			<ChartContainer
+				config={{}}
+				className={cn('h-full w-full absolute aspect-auto bg-card opacity-0 transition-opacity', {
+					'opacity-100': yAxisSet,
+				})}
+			>
 				<AreaChart
 					accessibilityLayer
 					data={chartData}
@@ -105,8 +113,9 @@ export default function ContainerCpuChart({
 						<Area
 							key={key}
 							// isAnimationActive={chartData.length < 20}
-							animateNewValues={false}
+							isAnimationActive={false}
-							animationDuration={1200}
+							// animateNewValues={false}
+							// animationDuration={1200}
 							dataKey={key}
 							type="monotoneX"
 							fill={chartConfig[key].color}

hub/site/src/components/charts/container-mem-chart.tsx

@@ -6,8 +6,8 @@ import {
 	ChartTooltipContent,
 } from '@/components/ui/chart'
 import { useMemo, useRef } from 'react'
-import { chartTimeData, formatShortDate, useYaxisWidth } from '@/lib/utils'
+import { chartTimeData, cn, formatShortDate, useYaxisWidth } from '@/lib/utils'
-import Spinner from '../spinner'
+// import Spinner from '../spinner'
 import { useStore } from '@nanostores/react'
 import { $chartTime } from '@/lib/stores'
 
@@ -18,9 +18,11 @@ export default function ContainerMemChart({
 	chartData: Record<string, number | string>[]
 	ticks: number[]
 }) {
+	const chartTime = useStore($chartTime)
 	const chartRef = useRef<HTMLDivElement>(null)
 	const yAxisWidth = useYaxisWidth(chartRef)
-	const chartTime = useStore($chartTime)
+
+	const yAxisSet = useMemo(() => yAxisWidth !== 180, [yAxisWidth])
 
 	const chartConfig = useMemo(() => {
 		let config = {} as Record<
@@ -57,13 +59,19 @@ export default function ContainerMemChart({
 		return config satisfies ChartConfig
 	}, [chartData])
 
-	if (!chartData.length || !ticks.length) {
+	// if (!chartData.length || !ticks.length) {
-		return <Spinner />
+	// 	return <Spinner />
-	}
+	// }
 
 	return (
 		<div ref={chartRef}>
-			<ChartContainer config={chartConfig} className="h-full w-full absolute aspect-auto">
+			{/* {!yAxisSet && <Spinner />} */}
+			<ChartContainer
+				config={{}}
+				className={cn('h-full w-full absolute aspect-auto bg-card opacity-0 transition-opacity', {
+					'opacity-100': yAxisSet,
+				})}
+			>
 				<AreaChart
 					accessibilityLayer
 					data={chartData}
@@ -71,8 +79,6 @@ export default function ContainerMemChart({
 					margin={{
 						top: 10,
 					}}
-
-					// reverseStackOrder={true}
 				>
 					<CartesianGrid vertical={false} />
 					<YAxis
@@ -109,9 +115,8 @@ export default function ContainerMemChart({
 					{Object.keys(chartConfig).map((key) => (
 						<Area
 							key={key}
-							isAnimationActive={chartData.length < 20}
+							// animationDuration={1200}
-							animateNewValues={false}
+							isAnimationActive={false}
-							animationDuration={1200}
 							dataKey={key}
 							type="monotoneX"
 							fill={chartConfig[key].color}

hub/site/src/components/charts/container-net-chart.tsx

@@ -6,8 +6,8 @@ import {
 	ChartTooltipContent,
 } from '@/components/ui/chart'
 import { useMemo, useRef } from 'react'
-import { chartTimeData, formatShortDate, useYaxisWidth } from '@/lib/utils'
+import { chartTimeData, cn, formatShortDate, useYaxisWidth } from '@/lib/utils'
-import Spinner from '../spinner'
+// import Spinner from '../spinner'
 import { useStore } from '@nanostores/react'
 import { $chartTime } from '@/lib/stores'
 import { Separator } from '@/components/ui/separator'
@@ -19,9 +19,11 @@ export default function ContainerCpuChart({
 	chartData: Record<string, number | number[]>[]
 	ticks: number[]
 }) {
+	const chartTime = useStore($chartTime)
 	const chartRef = useRef<HTMLDivElement>(null)
 	const yAxisWidth = useYaxisWidth(chartRef)
-	const chartTime = useStore($chartTime)
+
+	const yAxisSet = useMemo(() => yAxisWidth !== 180, [yAxisWidth])
 
 	const chartConfig = useMemo(() => {
 		let config = {} as Record<
@@ -57,13 +59,19 @@ export default function ContainerCpuChart({
 		return config satisfies ChartConfig
 	}, [chartData])
 
-	if (!chartData.length || !ticks.length) {
+	// if (!chartData.length || !ticks.length) {
-		return <Spinner />
+	// 	return <Spinner />
-	}
+	// }
 
 	return (
 		<div ref={chartRef}>
-			<ChartContainer config={{}} className="h-full w-full absolute aspect-auto">
+			{/* {!yAxisSet && <Spinner />} */}
+			<ChartContainer
+				config={{}}
+				className={cn('h-full w-full absolute aspect-auto bg-card opacity-0 transition-opacity', {
+					'opacity-100': yAxisSet,
+				})}
+			>
 				<AreaChart
 					accessibilityLayer
 					data={chartData}
@@ -134,9 +142,8 @@ export default function ContainerCpuChart({
 						<Area
 							key={key}
 							name={key}
-							// isAnimationActive={chartData.length < 20}
+							// animationDuration={1200}
-							animateNewValues={false}
+							isAnimationActive={false}
-							animationDuration={1200}
 							dataKey={(data) => data?.[key]?.[2] ?? 0}
 							type="monotoneX"
 							fill={chartConfig[key].color}

hub/site/src/components/charts/cpu-chart.tsx

@@ -1,12 +1,12 @@
 import { Area, AreaChart, CartesianGrid, XAxis, YAxis } from 'recharts'
 
 import { ChartContainer, ChartTooltip, ChartTooltipContent } from '@/components/ui/chart'
-import { chartTimeData, formatShortDate, useYaxisWidth } from '@/lib/utils'
+import { chartTimeData, cn, formatShortDate, useYaxisWidth } from '@/lib/utils'
-import Spinner from '../spinner'
+// import Spinner from '../spinner'
 import { useStore } from '@nanostores/react'
 import { $chartTime } from '@/lib/stores'
 import { SystemStatsRecord } from '@/types'
-import { useRef } from 'react'
+import { useMemo, useRef } from 'react'
 
 export default function CpuChart({
 	ticks,
@@ -15,17 +15,24 @@ export default function CpuChart({
 	ticks: number[]
 	systemData: SystemStatsRecord[]
 }) {
+	const chartTime = useStore($chartTime)
 	const chartRef = useRef<HTMLDivElement>(null)
 	const yAxisWidth = useYaxisWidth(chartRef)
-	const chartTime = useStore($chartTime)
 
-	if (!systemData.length || !ticks.length) {
+	const yAxisSet = useMemo(() => yAxisWidth !== 180, [yAxisWidth])
-		return <Spinner />
+
-	}
+	// if (!systemData.length || !ticks.length) {
+	// 	return <Spinner />
+	// }
 
 	return (
 		<div ref={chartRef}>
-			<ChartContainer config={{}} className="h-full w-full absolute aspect-auto">
+			<ChartContainer
+				config={{}}
+				className={cn('h-full w-full absolute aspect-auto bg-card opacity-0 transition-opacity', {
+					'opacity-100': yAxisSet,
+				})}
+			>
 				<AreaChart accessibilityLayer data={systemData} margin={{ top: 10 }}>
 					<CartesianGrid vertical={false} />
 					<YAxis
@@ -64,9 +71,10 @@ export default function CpuChart({
 						fill="hsl(var(--chart-1))"
 						fillOpacity={0.4}
 						stroke="hsl(var(--chart-1))"
-						animationDuration={1200}
+						isAnimationActive={false}
 						// animationEasing="ease-out"
-						// animateNewValues={false}
+						animationDuration={700}
+						animateNewValues={true}
 					/>
 				</AreaChart>
 			</ChartContainer>

hub/site/src/components/charts/disk-chart.tsx

@@ -1,9 +1,9 @@
 import { Area, AreaChart, CartesianGrid, XAxis, YAxis } from 'recharts'
 
 import { ChartContainer, ChartTooltip, ChartTooltipContent } from '@/components/ui/chart'
-import { chartTimeData, formatShortDate, useYaxisWidth } from '@/lib/utils'
+import { chartTimeData, cn, formatShortDate, useYaxisWidth } from '@/lib/utils'
 import { useMemo, useRef } from 'react'
-import Spinner from '../spinner'
+// import Spinner from '../spinner'
 import { useStore } from '@nanostores/react'
 import { $chartTime } from '@/lib/stores'
 import { SystemStatsRecord } from '@/types'
@@ -15,9 +15,11 @@ export default function DiskChart({
 	ticks: number[]
 	systemData: SystemStatsRecord[]
 }) {
+	const chartTime = useStore($chartTime)
 	const chartRef = useRef<HTMLDivElement>(null)
 	const yAxisWidth = useYaxisWidth(chartRef)
-	const chartTime = useStore($chartTime)
+
+	const yAxisSet = useMemo(() => yAxisWidth !== 180, [yAxisWidth])
 
 	const diskSize = useMemo(() => {
 		return Math.round(systemData[0]?.stats.d)
@@ -32,13 +34,19 @@ export default function DiskChart({
 	// 	return ticks
 	// }, [diskSize])
 
-	if (!systemData.length || !ticks.length) {
+	// if (!systemData.length || !ticks.length) {
-		return <Spinner />
+	// 	return <Spinner />
-	}
+	// }
 
 	return (
 		<div ref={chartRef}>
-			<ChartContainer config={{}} className="h-full w-full absolute aspect-auto">
+			{/* {!yAxisSet && <Spinner />} */}
+			<ChartContainer
+				config={{}}
+				className={cn('h-full w-full absolute aspect-auto bg-card opacity-0 transition-opacity', {
+					'opacity-100': yAxisSet,
+				})}
+			>
 				<AreaChart
 					accessibilityLayer
 					data={systemData}
@@ -88,7 +96,8 @@ export default function DiskChart({
 						fill="hsl(var(--chart-4))"
 						fillOpacity={0.4}
 						stroke="hsl(var(--chart-4))"
-						animationDuration={1200}
+						// animationDuration={1200}
+						isAnimationActive={false}
 					/>
 				</AreaChart>
 			</ChartContainer>

hub/site/src/components/charts/disk-io-chart.tsx

@@ -1,12 +1,12 @@
 import { Area, AreaChart, CartesianGrid, XAxis, YAxis } from 'recharts'
 
 import { ChartContainer, ChartTooltip, ChartTooltipContent } from '@/components/ui/chart'
-import { chartTimeData, formatShortDate, useYaxisWidth } from '@/lib/utils'
+import { chartTimeData, cn, formatShortDate, useYaxisWidth } from '@/lib/utils'
-import Spinner from '../spinner'
+// import Spinner from '../spinner'
 import { useStore } from '@nanostores/react'
 import { $chartTime } from '@/lib/stores'
 import { SystemStatsRecord } from '@/types'
-import { useRef } from 'react'
+import { useMemo, useRef } from 'react'
 
 export default function DiskIoChart({
 	ticks,
@@ -15,17 +15,25 @@ export default function DiskIoChart({
 	ticks: number[]
 	systemData: SystemStatsRecord[]
 }) {
+	const chartTime = useStore($chartTime)
 	const chartRef = useRef<HTMLDivElement>(null)
 	const yAxisWidth = useYaxisWidth(chartRef)
-	const chartTime = useStore($chartTime)
 
-	if (!systemData.length || !ticks.length) {
+	const yAxisSet = useMemo(() => yAxisWidth !== 180, [yAxisWidth])
-		return <Spinner />
+
-	}
+	// if (!systemData.length || !ticks.length) {
+	// 	return <Spinner />
+	// }
 
 	return (
 		<div ref={chartRef}>
-			<ChartContainer config={{}} className="h-full w-full absolute aspect-auto">
+			{/* {!yAxisSet && <Spinner />} */}
+			<ChartContainer
+				config={{}}
+				className={cn('h-full w-full absolute aspect-auto bg-card opacity-0 transition-opacity', {
+					'opacity-100': yAxisSet,
+				})}
+			>
 				<AreaChart
 					accessibilityLayer
 					data={systemData}
@@ -80,7 +88,8 @@ export default function DiskIoChart({
 						fill="hsl(var(--chart-3))"
 						fillOpacity={0.4}
 						stroke="hsl(var(--chart-3))"
-						animationDuration={1200}
+						// animationDuration={1200}
+						isAnimationActive={false}
 					/>
 					<Area
 						dataKey="stats.dr"
@@ -89,7 +98,8 @@ export default function DiskIoChart({
 						fill="hsl(var(--chart-1))"
 						fillOpacity={0.4}
 						stroke="hsl(var(--chart-1))"
-						animationDuration={1200}
+						// animationDuration={1200}
+						isAnimationActive={false}
 					/>
 				</AreaChart>
 			</ChartContainer>

hub/site/src/components/charts/mem-chart.tsx

@@ -1,9 +1,9 @@
 import { Area, AreaChart, CartesianGrid, XAxis, YAxis } from 'recharts'
 
 import { ChartContainer, ChartTooltip, ChartTooltipContent } from '@/components/ui/chart'
-import { chartTimeData, formatShortDate, useYaxisWidth } from '@/lib/utils'
+import { chartTimeData, cn, formatShortDate, useYaxisWidth } from '@/lib/utils'
 import { useMemo, useRef } from 'react'
-import Spinner from '../spinner'
+// import Spinner from '../spinner'
 import { useStore } from '@nanostores/react'
 import { $chartTime } from '@/lib/stores'
 import { SystemStatsRecord } from '@/types'
@@ -19,18 +19,26 @@ export default function MemChart({
 	const chartRef = useRef<HTMLDivElement>(null)
 	const yAxisWidth = useYaxisWidth(chartRef)
 
+	const yAxisSet = useMemo(() => yAxisWidth !== 180, [yAxisWidth])
+
 	const totalMem = useMemo(() => {
 		const maxMem = Math.ceil(systemData[0]?.stats.m)
 		return maxMem > 2 && maxMem % 2 !== 0 ? maxMem + 1 : maxMem
 	}, [systemData])
 
-	if (!systemData.length || !ticks.length) {
+	// if (!systemData.length || !ticks.length) {
-		return <Spinner />
+	// 	return <Spinner />
-	}
+	// }
 
 	return (
 		<div ref={chartRef}>
-			<ChartContainer config={{}} className="h-full w-full absolute aspect-auto">
+			{/* {!yAxisSet && <Spinner />} */}
+			<ChartContainer
+				config={{}}
+				className={cn('h-full w-full absolute aspect-auto bg-card opacity-0 transition-opacity', {
+					'opacity-100': yAxisSet,
+				})}
+			>
 				<AreaChart
 					accessibilityLayer
 					data={systemData}
@@ -80,7 +88,8 @@ export default function MemChart({
 						fillOpacity={0.4}
 						stroke="hsl(var(--chart-2))"
 						stackId="a"
-						animationDuration={1200}
+						// animationDuration={1200}
+						isAnimationActive={false}
 					/>
 					<Area
 						dataKey="stats.mb"
@@ -91,7 +100,8 @@ export default function MemChart({
 						strokeOpacity={0.3}
 						stroke="hsl(var(--chart-2))"
 						stackId="a"
-						animationDuration={1200}
+						// animationDuration={1200}
+						isAnimationActive={false}
 					/>
 				</AreaChart>
 			</ChartContainer>

hub/site/src/components/routes/system.tsx

@@ -1,12 +1,12 @@
 import { $updatedSystem, $systems, pb, $chartTime } from '@/lib/stores'
 import { ContainerStatsRecord, SystemRecord, SystemStatsRecord } from '@/types'
-import { Suspense, lazy, useCallback, useEffect, useMemo, useState } from 'react'
+import { Suspense, lazy, useCallback, useEffect, useMemo, useRef, useState } from 'react'
 import { Card, CardHeader, CardTitle, CardDescription, CardContent } from '../ui/card'
 import { useStore } from '@nanostores/react'
 import Spinner from '../spinner'
 import { ClockArrowUp, CpuIcon, GlobeIcon } from 'lucide-react'
 import ChartTimeSelect from '../charts/chart-time-select'
-import { chartTimeData, cn, getPbTimestamp } from '@/lib/utils'
+import { chartTimeData, cn, getPbTimestamp, useClampedIsInViewport } from '@/lib/utils'
 import { Separator } from '../ui/separator'
 import { scaleTime } from 'd3-scale'
 import { Tooltip, TooltipContent, TooltipProvider, TooltipTrigger } from '../ui/tooltip'
@@ -27,15 +27,10 @@ export default function ServerDetail({ name }: { name: string }) {
 	const [ticks, setTicks] = useState([] as number[])
 	const [server, setServer] = useState({} as SystemRecord)
 	const [systemStats, setSystemStats] = useState([] as SystemStatsRecord[])
-	const [dockerCpuChartData, setDockerCpuChartData] = useState(
+	const [dockerCpuChartData, setDockerCpuChartData] = useState<Record<string, number | string>[]>()
-		[] as Record<string, number | string>[]
+	const [dockerMemChartData, setDockerMemChartData] = useState<Record<string, number | string>[]>()
-	)
+	const [dockerNetChartData, setDockerNetChartData] =
-	const [dockerMemChartData, setDockerMemChartData] = useState(
+		useState<Record<string, number | number[]>[]>()
-		[] as Record<string, number | string>[]
-	)
-	const [dockerNetChartData, setDockerNetChartData] = useState(
-		[] as Record<string, number | number[]>[]
-	)
 
 	useEffect(() => {
 		document.title = `${name} / Beszel`
@@ -47,9 +42,9 @@ export default function ServerDetail({ name }: { name: string }) {
 
 	const resetCharts = useCallback(() => {
 		setSystemStats([])
-		setDockerCpuChartData([])
+		setDockerCpuChartData(undefined)
-		setDockerMemChartData([])
+		setDockerMemChartData(undefined)
-		setDockerNetChartData([])
+		setDockerNetChartData(undefined)
 	}, [])
 
 	useEffect(resetCharts, [chartTime])
@@ -121,7 +116,9 @@ export default function ServerDetail({ name }: { name: string }) {
 				sort: 'created',
 			})
 			.then((records) => {
-				makeContainerData(records)
+				if (records.length) {
+					makeContainerData(records)
+				}
 				// setContainers(records)
 			})
 	}, [server, chartTime])
@@ -129,15 +126,14 @@ export default function ServerDetail({ name }: { name: string }) {
 	// container stats for charts
 	const makeContainerData = useCallback((containers: ContainerStatsRecord[]) => {
 		// console.log('containers', containers)
-		const dockerCpuData = [] as typeof dockerCpuChartData
+		const dockerCpuData = []
-		const dockerMemData = [] as typeof dockerMemChartData
+		const dockerMemData = []
-		const dockerNetData = [] as typeof dockerNetChartData
+		const dockerNetData = []
-
 		for (let { created, stats } of containers) {
 			const time = new Date(created).getTime()
-			let cpuData = { time } as (typeof dockerCpuChartData)[0]
+			let cpuData = { time } as Record<string, number | string>
-			let memData = { time } as (typeof dockerMemChartData)[0]
+			let memData = { time } as Record<string, number | string>
-			let netData = { time } as (typeof dockerNetChartData)[0]
+			let netData = { time } as Record<string, number | number[]>
 			for (let container of stats) {
 				cpuData[container.n] = container.c
 				memData[container.n] = container.m
@@ -225,7 +221,7 @@ export default function ServerDetail({ name }: { name: string }) {
 				<CpuChart ticks={ticks} systemData={systemStats} />
 			</ChartCard>
 
-			{dockerCpuChartData.length > 0 && (
+			{dockerCpuChartData && (
 				<ChartCard title="Docker CPU Usage" description="CPU utilization of docker containers">
 					<ContainerCpuChart chartData={dockerCpuChartData} ticks={ticks} />
 				</ChartCard>
@@ -235,7 +231,7 @@ export default function ServerDetail({ name }: { name: string }) {
 				<MemChart ticks={ticks} systemData={systemStats} />
 			</ChartCard>
 
-			{dockerMemChartData.length > 0 && (
+			{dockerMemChartData && (
 				<ChartCard title="Docker Memory Usage" description="Memory usage of docker containers">
 					<ContainerMemChart chartData={dockerMemChartData} ticks={ticks} />
 				</ChartCard>
@@ -256,7 +252,7 @@ export default function ServerDetail({ name }: { name: string }) {
 				<BandwidthChart ticks={ticks} systemData={systemStats} />
 			</ChartCard>
 
-			{dockerNetChartData.length > 0 && (
+			{dockerNetChartData && (
 				<ChartCard
 					title="Docker Network I/O"
 					description="Includes traffic between internal services"
@@ -277,8 +273,10 @@ function ChartCard({
 	description: string
 	children: React.ReactNode
 }) {
+	const target = useRef<HTMLDivElement>(null)
+	const [isInViewport, wrappedTargetRef] = useClampedIsInViewport({ target: target })
 	return (
-		<Card className="pb-2 sm:pb-4 col-span-full">
+		<Card className="pb-2 sm:pb-4 col-span-full" ref={wrappedTargetRef}>
 			<CardHeader className="pb-5 pt-4 relative space-y-1 max-sm:py-3 max-sm:px-4">
 				<CardTitle className="text-xl sm:text-2xl">{title}</CardTitle>
 				<CardDescription>{description}</CardDescription>
@@ -287,7 +285,8 @@ function ChartCard({
 				</div>
 			</CardHeader>
 			<CardContent className="pl-1 w-[calc(100%-1.6em)] h-52 relative">
-				<Suspense fallback={<Spinner />}>{children}</Suspense>
+				{<Spinner />}
+				{isInViewport && <Suspense>{children}</Suspense>}
 			</CardContent>
 		</Card>
 	)

hub/site/src/lib/utils.ts

@@ -7,6 +7,7 @@ import { RecordModel, RecordSubscription } from 'pocketbase'
 import { WritableAtom } from 'nanostores'
 import { timeDay, timeHour } from 'd3-time'
 import { useEffect, useState } from 'react'
+import useIsInViewport, { CallbackRef, HookOptions } from 'use-is-in-viewport'
 
 export function cn(...inputs: ClassValue[]) {
 	return twMerge(clsx(inputs))
@@ -183,17 +184,36 @@ export const chartTimeData: ChartTimeData = {
 
 /** Hacky solution to set the correct width of the yAxis in recharts */
 export function useYaxisWidth(chartRef: React.RefObject<HTMLDivElement>) {
-	const [yAxisWidth, setYAxisWidth] = useState(90)
+	const [yAxisWidth, setYAxisWidth] = useState(180)
 	useEffect(() => {
 		let interval = setInterval(() => {
 			// console.log('chartRef', chartRef.current)
 			const yAxisElement = chartRef?.current?.querySelector('.yAxis')
 			if (yAxisElement) {
-				console.log('yAxisElement', yAxisElement)
+				// console.log('yAxisElement', yAxisElement)
 				setYAxisWidth(yAxisElement.getBoundingClientRect().width + 22)
 				clearInterval(interval)
 			}
-		}, 16)
+		}, 0)
+		return () => clearInterval(interval)
 	}, [])
 	return yAxisWidth
 }
+
+export function useClampedIsInViewport(options: HookOptions): [boolean | null, CallbackRef] {
+	const [isInViewport, wrappedTargetRef] = useIsInViewport(options)
+	const [wasInViewportAtleastOnce, setWasInViewportAtleastOnce] = useState(isInViewport)
+
+	useEffect(() => {
+		setWasInViewportAtleastOnce((prev) => {
+			// this will clamp it to the first true
+			// received from useIsInViewport
+			if (!prev) {
+				return isInViewport
+			}
+			return prev
+		})
+	}, [isInViewport])
+
+	return [wasInViewportAtleastOnce, wrappedTargetRef]
+}