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import * as Uebersicht from "uebersicht";
import * as DataWidget from "./data-widget.jsx";
import * as DataWidgetLoader from "./data-widget-loader.jsx";
import Graph from "./graph.jsx";
import * as Icons from "../icons/icons.jsx";
import useWidgetRefresh from "../../hooks/use-widget-refresh";
import useServerSocket from "../../hooks/use-server-socket";
import { useSimpleBarContext } from "../simple-bar-context.jsx";
import * as Utils from "../../utils";
export { cpuStyles as styles } from "../../styles/components/data/cpu";
const { React } = Uebersicht;
const DEFAULT_REFRESH_FREQUENCY = 2000;
const GRAPH_LENGTH = 50;
/**
* CPU Widget component
* @returns {JSX.Element|null} The CPU widget
*/
export const Widget = React.memo(() => {
const { displayIndex, settings } = useSimpleBarContext();
const { widgets, cpuWidgetOptions } = settings;
const { cpuWidget } = widgets;
const {
refreshFrequency,
showOnDisplay,
displayAsGraph,
cpuMonitorApp,
showIcon,
cpuUsageThreshold,
} = cpuWidgetOptions;
// Determine if the widget should be visible based on display settings
const visible =
Utils.isVisibleOnDisplay(displayIndex, showOnDisplay) && cpuWidget;
// Set the refresh frequency for the widget
const refresh = React.useMemo(
() =>
Utils.getRefreshFrequency(refreshFrequency, DEFAULT_REFRESH_FREQUENCY),
[refreshFrequency],
);
const [graph, setGraph] = React.useState([]);
const [state, setState] = React.useState();
const [loading, setLoading] = React.useState(visible);
/**
* Reset the widget state
*/
const resetWidget = () => {
setState(undefined);
setLoading(false);
setGraph([]);
};
/**
* Fetch CPU usage data
*/
const getCpu = React.useCallback(async () => {
if (!visible) return;
try {
const usage = await Utils.cachedRun(
`top -l 2 | awk '/CPU usage/ && NR > 10 {gsub(/%/, "", $7); print int(100 - $7); exit}'`,
refresh,
);
const formattedUsage = { usage: parseInt(usage, 10) };
setState(formattedUsage);
if (displayAsGraph) {
Utils.addToGraphHistory(formattedUsage, setGraph, GRAPH_LENGTH);
}
setLoading(false);
} catch {
setTimeout(getCpu, 1000);
}
}, [displayAsGraph, setGraph, visible, refresh]);
// Use server socket to fetch CPU data
useServerSocket("cpu", visible, getCpu, resetWidget, setLoading);
// Refresh the widget at the specified interval
useWidgetRefresh(visible, getCpu, refresh);
if (loading) return <DataWidgetLoader.Widget className="cpu" />;
if (!state) return null;
const { usage } = state;
const threshold = Number(cpuUsageThreshold) || 0;
const usageValue = Number(usage) || 0;
if (threshold > 0 && usageValue < threshold) return null;
// Handle click event to open CPU monitor app
const onClick =
cpuMonitorApp === "None"
? undefined
: (e) => {
Utils.clickEffect(e);
openCpuUsageApp(cpuMonitorApp);
};
if (displayAsGraph) {
return (
<DataWidget.Widget
classes="cpu cpu--graph"
onClick={onClick}
disableSlider
>
<Graph
className="cpu__graph"
caption={{
usage: {
value: `${usage}%`,
icon: showIcon ? Icons.CPU : null,
color: "var(--yellow)",
},
}}
values={graph}
maxLength={GRAPH_LENGTH}
maxValue={100}
/>
</DataWidget.Widget>
);
}
return (
<DataWidget.Widget
classes="cpu"
Icon={showIcon ? Icons.CPU : null}
onClick={onClick}
>
<span className="cpu__usage">{usage}%</span>
</DataWidget.Widget>
);
});
Widget.displayName = "Cpu";
/**
* Open the specified CPU usage monitoring application
* @param {string} app - The name of the application to open
*/
function openCpuUsageApp(app) {
switch (app) {
case "Activity Monitor":
Uebersicht.run(`open -a "Activity Monitor"`);
break;
case "Top":
Utils.runInUserTerminal("top");
break;
}
}
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