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2026-07-13 13:32:57 +08:00

64 lines
2.0 KiB
TypeScript

/**
* X-axis tick + tooltip label formatters for the task/agent activity charts.
* ClickHouse buckets are UTC-aligned, so labels are formatted in UTC (local time
* causes off-by-one day labels). Tick selection itself lives in useXAxisTicks.
*/
const ONE_MINUTE = 60 * 1000;
const ONE_DAY = 24 * 60 * 60 * 1000;
type ActivityPoint = { bucket: number };
export function buildActivityTimeAxis(data: ActivityPoint[]) {
const range = data.length >= 2 ? data[data.length - 1].bucket - data[0].bucket : 0;
const bucketMs = data.length >= 2 ? data[1].bucket - data[0].bucket : 0;
// ≤ 1 day range → clock time, otherwise date.
const showTime = range <= ONE_DAY;
// Sub-minute buckets need seconds, or adjacent ticks collapse to the same "HH:MM".
const showSeconds = bucketMs > 0 && bucketMs < ONE_MINUTE;
const isSubDayBucket = bucketMs > 0 && bucketMs < ONE_DAY;
const tickFormatter = (value: number) => {
const date = new Date(value);
if (showTime) {
return date.toLocaleTimeString("en-US", {
hour: "2-digit",
minute: "2-digit",
...(showSeconds ? { second: "2-digit" } : {}),
hour12: false,
timeZone: "UTC",
});
}
return date.toLocaleDateString("en-US", {
month: "short",
day: "numeric",
timeZone: "UTC",
});
};
const tooltipLabelFormatter = (_label: string, payload: { payload?: { bucket?: number } }[]) => {
const ts = payload?.[0]?.payload?.bucket;
if (typeof ts !== "number" || !Number.isFinite(ts)) return _label;
const date = new Date(ts);
return isSubDayBucket
? date.toLocaleString("en-US", {
month: "short",
day: "numeric",
hour: "2-digit",
minute: "2-digit",
...(showSeconds ? { second: "2-digit" } : {}),
hour12: false,
timeZone: "UTC",
})
: date.toLocaleDateString("en-US", {
month: "short",
day: "numeric",
year: "numeric",
timeZone: "UTC",
});
};
return { tickFormatter, tooltipLabelFormatter };
}