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CameraGraph.tsx
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import { useTheme } from "@/context/theme-provider";
import { FrigateConfig } from "@/types/frigateConfig";
import { useCallback, useEffect, useMemo } from "react";
import Chart from "react-apexcharts";
import { isMobileOnly } from "react-device-detect";
import { MdCircle } from "react-icons/md";
import useSWR from "swr";
const GRAPH_COLORS = ["#5C7CFA", "#ED5CFA", "#FAD75C"];
type CameraLineGraphProps = {
graphId: string;
unit: string;
dataLabels: string[];
updateTimes: number[];
data: ApexAxisChartSeries;
};
export function CameraLineGraph({
graphId,
unit,
dataLabels,
updateTimes,
data,
}: CameraLineGraphProps) {
const { data: config } = useSWR<FrigateConfig>("config", {
revalidateOnFocus: false,
});
const lastValues = useMemo<number[] | undefined>(() => {
if (!dataLabels || !data || data.length == 0) {
return undefined;
}
return dataLabels.map(
(_, labelIdx) =>
// @ts-expect-error y is valid
data[labelIdx].data[data[labelIdx].data.length - 1]?.y ?? 0,
) as number[];
}, [data, dataLabels]);
const { theme, systemTheme } = useTheme();
const formatTime = useCallback(
(val: unknown) => {
const date = new Date(updateTimes[Math.round(val as number)] * 1000);
return date.toLocaleTimeString([], {
hour12: config?.ui.time_format != "24hour",
hour: "2-digit",
minute: "2-digit",
});
},
[config, updateTimes],
);
const options = useMemo(() => {
return {
chart: {
id: graphId,
selection: {
enabled: false,
},
toolbar: {
show: false,
},
zoom: {
enabled: false,
},
},
colors: GRAPH_COLORS,
grid: {
show: false,
},
legend: {
show: false,
},
dataLabels: {
enabled: false,
},
stroke: {
width: 1,
},
tooltip: {
theme: systemTheme || theme,
},
markers: {
size: 0,
},
xaxis: {
tickAmount: isMobileOnly ? 3 : 4,
tickPlacement: "on",
labels: {
rotate: 0,
formatter: formatTime,
},
axisBorder: {
show: false,
},
axisTicks: {
show: false,
},
},
yaxis: {
show: true,
labels: {
formatter: (val: number) => Math.ceil(val).toString(),
},
min: 0,
},
} as ApexCharts.ApexOptions;
}, [graphId, systemTheme, theme, formatTime]);
useEffect(() => {
ApexCharts.exec(graphId, "updateOptions", options, true, true);
}, [graphId, options]);
return (
<div className="flex w-full flex-col">
{lastValues && (
<div className="flex flex-wrap items-center gap-2.5">
{dataLabels.map((label, labelIdx) => (
<div key={label} className="flex items-center gap-1">
<MdCircle
className="size-2"
style={{ color: GRAPH_COLORS[labelIdx] }}
/>
<div className="text-xs text-muted-foreground">{label}</div>
<div className="text-xs text-primary">
{lastValues[labelIdx]}
{unit}
</div>
</div>
))}
</div>
)}
<Chart type="line" options={options} series={data} height="120" />
</div>
);
}