feat: track battery levels per device

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

@@ -125,7 +125,7 @@ export default memo(function SystemDetail({ id }: { id: string }) {
 
 					<FanChart {...coreProps} />
 
-					<BatteryChart {...coreProps} />
+					<BatteryChart system={system} {...coreProps} />
 
 					{hasGpuPowerData && <GpuPowerChart chartData={chartData} grid={grid} dataEmpty={dataEmpty} />}
 				</div>
@@ -191,7 +191,7 @@ export default memo(function SystemDetail({ id }: { id: string }) {
 						<BandwidthChart {...coreProps} systemStats={systemStats} />
 						<TemperatureChart {...coreProps} setPageBottomExtraMargin={setPageBottomExtraMargin} />
 						<FanChart {...coreProps} />
-						<BatteryChart {...coreProps} />
+						<BatteryChart system={system} {...coreProps} />
 						<SwapChart chartData={chartData} grid={grid} dataEmpty={dataEmpty} systemStats={systemStats} />
 						{pageBottomExtraMargin > 0 && <div style={{ marginBottom: pageBottomExtraMargin }}></div>}
 					</div>

internal/site/src/components/routes/system/charts/sensor-charts.tsx

@@ -3,7 +3,7 @@ import AreaChartDefault from "@/components/charts/area-chart"
 import { batteryStateTranslations } from "@/lib/i18n"
 import { $fanFilter, $temperatureFilter, $userSettings } from "@/lib/stores"
 import { cn, decimalString, formatTemperature, toFixedFloat } from "@/lib/utils"
-import type { ChartData, SystemStatsRecord } from "@/types"
+import type { ChartData, SystemRecord, SystemStatsRecord } from "@/types"
 import { ChartCard, FilterBar } from "../chart-card"
 import LineChartDefault from "@/components/charts/line-chart"
 import { useStore } from "@nanostores/react"
@@ -14,18 +14,57 @@ export function BatteryChart({
 	grid,
 	dataEmpty,
 	maxValues,
+	system,
 }: {
 	chartData: ChartData
 	grid: boolean
 	dataEmpty: boolean
 	maxValues: boolean
+	system: SystemRecord
 }) {
-	const showBatteryChart = chartData.systemStats.at(-1)?.stats.bat
+	const batteryNames = useMemo(() => {
+		const names = new Set<string>()
+		for (const record of chartData.systemStats) {
+			for (const name of Object.keys(record.stats?.bats ?? {})) names.add(name)
+		}
+		return [...names].sort()
+	}, [chartData.systemStats])
+	const hasNamedBatteries = batteryNames.length > 0
+	const showBatteryChart = hasNamedBatteries || chartData.systemStats.some((record) => record.stats?.bat)
 
 	if (!showBatteryChart) {
 		return null
 	}
 
+	if (hasNamedBatteries) {
+		const dataPoints = batteryNames.map((name, index) => ({
+			label: name,
+			dataKey: ({ stats }: SystemStatsRecord) => stats?.bats?.[name],
+			color: `hsl(${(index * 360) / batteryNames.length}, 60%, 55%)`,
+		}))
+		return (
+			<ChartCard
+				empty={dataEmpty}
+				grid={grid}
+				title={t`Battery`}
+				description={`${t({
+					message: "Current state",
+					comment: "Context: Battery state",
+				})}: ${batteryStateTranslations[system.info.bat?.[1] ?? 0]()}`}
+			>
+				<LineChartDefault
+					chartData={chartData}
+					maxToggled={maxValues}
+					dataPoints={dataPoints}
+					domain={[0, 100]}
+					legend={true}
+					tickFormatter={(val) => `${val}%`}
+					contentFormatter={({ value }) => `${value}%`}
+				/>
+			</ChartCard>
+		)
+	}
+
 	return (
 		<ChartCard
 			empty={dataEmpty}
@@ -34,7 +73,7 @@ export function BatteryChart({
 			description={`${t({
 				message: "Current state",
 				comment: "Context: Battery state",
-			})}: ${batteryStateTranslations[chartData.systemStats.at(-1)?.stats.bat?.[1] ?? 0]()}`}
+			})}: ${batteryStateTranslations[system.info.bat?.[1] ?? 0]()}`}
 		>
 			<AreaChartDefault
 				chartData={chartData}
@@ -210,15 +249,7 @@ export function TemperatureChart({
 	)
 }
 
-export function FanChart({
-	chartData,
-	grid,
-	dataEmpty,
-}: {
-	chartData: ChartData
-	grid: boolean
-	dataEmpty: boolean
-}) {
+export function FanChart({ chartData, grid, dataEmpty }: { chartData: ChartData; grid: boolean; dataEmpty: boolean }) {
 	const showFanChart = chartData.systemStats.at(-1)?.stats.f
 
 	const filter = useStore($fanFilter)

internal/site/src/types.d.ts

@@ -151,6 +151,8 @@ export interface SystemStats {
 	g?: Record<string, GPUData>
 	/** battery percent and state */
 	bat?: [number, BatteryState]
+	/** battery percentages by device name */
+	bats?: Record<string, number>
 	/** network interfaces [upload bytes, download bytes, total upload bytes, total download bytes] */
 	ni?: Record<string, [number, number, number, number]>
 }