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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 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 { memoryStyles as styles } from "../../styles/components/data/memory";
const { React } = Uebersicht;
const DEFAULT_REFRESH_FREQUENCY = 4000;
/**
* Memory Widget component
* @returns {JSX.Element|null} The memory widget component
*/
export const Widget = () => {
const { displayIndex, settings } = useSimpleBarContext();
const { widgets, memoryWidgetOptions } = settings;
const { memoryWidget } = widgets;
const {
refreshFrequency,
showOnDisplay,
memoryMonitorApp,
showIcon,
memoryUsageThreshold,
} = memoryWidgetOptions;
// Determine the refresh frequency for the widget
const refresh = React.useMemo(
() =>
Utils.getRefreshFrequency(refreshFrequency, DEFAULT_REFRESH_FREQUENCY),
[refreshFrequency],
);
// Determine if the widget should be visible
const visible =
Utils.isVisibleOnDisplay(displayIndex, showOnDisplay) && memoryWidget;
const [state, setState] = Uebersicht.React.useState();
const [loading, setLoading] = Uebersicht.React.useState(visible);
/**
* Reset the widget state
*/
const resetWidget = () => {
setState(undefined);
setLoading(false);
};
/**
* Fetch memory usage data
*/
const getMemory = React.useCallback(async () => {
const output = await Utils.cachedRun(
'vm_stat | awk \'BEGIN {page_size=4096} /page size of/ {page_size=$8} /Pages free/ {free=$3} /Pages inactive/ {inactive=$3} /Pages speculative/ {spec=$4} /Pages active/ {active=$3} /Pages wired/ {wired=$4} END {gsub(/\\./, "", free); gsub(/\\./, "", inactive); gsub(/\\./, "", spec); gsub(/\\./, "", active); gsub(/\\./, "", wired); available=free+inactive+spec; total=available+active+wired; printf "%.0f", (available/total)*100}\'',
refresh,
);
const free = parseInt(Utils.cleanupOutput(output), 10);
setState({ free });
setLoading(false);
}, [setLoading, setState, refresh]);
// Use server socket to get memory data
useServerSocket("memory", visible, getMemory, resetWidget, setLoading);
// Refresh the widget at the specified interval
useWidgetRefresh(visible, getMemory, refresh);
if (loading) return <DataWidgetLoader.Widget className="memory" />;
if (!state) return null;
const { free } = state;
const used = 100 - free;
const threshold = Number(memoryUsageThreshold) || 0;
if (threshold > 0 && used < threshold) return null;
// Handle click event to open memory usage app
const onClick =
memoryMonitorApp === "None"
? undefined
: (e) => {
Utils.clickEffect(e);
openMemoryUsageApp(memoryMonitorApp);
};
/**
* Pie chart component for memory usage
* @returns {JSX.Element} The pie chart component
*/
const Pie = () => {
return (
<div
className="memory__pie"
style={{
backgroundImage: `conic-gradient(var(--pie-color) ${used}%, var(--main-alt) ${used}% 100%)`,
}}
/>
);
};
const classes = Utils.classNames("memory", {
"memory--low": used <= 30,
"memory--medium": used > 30 && used <= 70,
"memory--high": used > 70,
});
return (
<DataWidget.Widget
classes={classes}
Icon={showIcon ? Pie : null}
onClick={onClick}
>
<div className="memory__content">{used}%</div>
</DataWidget.Widget>
);
};
/**
* Open the specified memory usage application
* @param {string} app - The name of the application to open
*/
function openMemoryUsageApp(app) {
switch (app) {
case "Activity Monitor":
Uebersicht.run(`open -a "Activity Monitor"`);
break;
case "Top":
Utils.runInUserTerminal("top");
break;
}
}
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