77 lines
2.3 KiB
TypeScript
77 lines
2.3 KiB
TypeScript
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import {
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aggregateMountedDiskUsage,
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type MountedDiskUsage,
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} from "../../domain/systemDiskUsage";
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interface TerminalDiskStats {
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diskUsed: number | null;
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diskTotal: number | null;
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diskPercent: number | null;
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disks: readonly MountedDiskUsage[];
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}
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export interface TerminalDiskSummary {
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used: number | null;
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total: number | null;
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percent: number | null;
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}
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export function formatDiskCapacityGb(value: number): string {
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return Number(value.toFixed(2)).toString();
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}
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/** Capacity units, ascending from the GiB the collectors report in. */
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const DISK_CAPACITY_UNITS = ["G", "T", "P"] as const;
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/** Pick the largest unit that keeps a GiB value at or above 1. */
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export function resolveDiskCapacityUnit(valueGb: number): { unit: string; divisor: number } {
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let divisor = 1;
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let index = 0;
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while (
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Math.abs(valueGb) / divisor >= 1024
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&& index < DISK_CAPACITY_UNITS.length - 1
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) {
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divisor *= 1024;
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index += 1;
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}
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return { unit: DISK_CAPACITY_UNITS[index], divisor };
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}
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/**
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* Render a used/total pair, both reported in GiB.
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*
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* Each side is scaled independently so a mostly-empty multi-terabyte pool keeps
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* its used figure — `136.37G/6.93T` rather than the `0.13/6.93T` a total-driven
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* unit would produce, or the unreadable `136.37/7096.47G` of a fixed one. When
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* both land in the same unit the suffix is written once, keeping the familiar
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* `71.12/878.15G` shape for ordinary disks.
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*/
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export function formatDiskCapacityRange(usedGb: number, totalGb: number): string {
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const used = resolveDiskCapacityUnit(usedGb);
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const total = resolveDiskCapacityUnit(totalGb);
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const usedText = formatDiskCapacityGb(usedGb / used.divisor);
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const totalText = formatDiskCapacityGb(totalGb / total.divisor);
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return used.unit === total.unit
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? `${usedText}/${totalText}${total.unit}`
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: `${usedText}${used.unit}/${totalText}${total.unit}`;
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}
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export function resolveTerminalDiskSummary(
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stats: TerminalDiskStats,
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): TerminalDiskSummary {
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const mountedUsage = aggregateMountedDiskUsage(stats.disks);
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if (mountedUsage) {
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return {
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used: mountedUsage.used,
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total: mountedUsage.total,
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percent: Math.round(mountedUsage.percent),
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};
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}
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return {
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used: stats.diskUsed,
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total: stats.diskTotal,
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percent: stats.diskPercent,
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};
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}
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