73 lines
2.1 KiB
TypeScript
73 lines
2.1 KiB
TypeScript
|
export function normalizeHm(value?: string | null) {
|
||
|
|
const match = String(value || "").match(/(\d{1,2}):(\d{2})/);
|
||
|
|
if (!match) return null;
|
||
|
|
const hour = Number.parseInt(match[1], 10);
|
||
|
|
const minute = Number.parseInt(match[2], 10);
|
||
|
|
if (
|
||
|
|
!Number.isFinite(hour) ||
|
||
|
|
!Number.isFinite(minute) ||
|
||
|
|
hour < 0 ||
|
||
|
|
hour > 23 ||
|
||
|
|
minute < 0 ||
|
||
|
|
minute > 59
|
||
|
|
) {
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
return `${String(hour).padStart(2, "0")}:${String(minute).padStart(2, "0")}`;
|
||
|
|
}
|
||
|
|
|
||
|
|
export function hmToMinutes(value?: string | null) {
|
||
|
|
const normalized = normalizeHm(value);
|
||
|
|
if (!normalized) return null;
|
||
|
|
const [hourText, minuteText] = normalized.split(":");
|
||
|
|
const hour = Number.parseInt(hourText || "", 10);
|
||
|
|
const minute = Number.parseInt(minuteText || "", 10);
|
||
|
|
if (!Number.isFinite(hour) || !Number.isFinite(minute)) return null;
|
||
|
|
return hour * 60 + minute;
|
||
|
|
}
|
||
|
|
|
||
|
|
export function interpolateSeriesAtMinutes(
|
||
|
|
times: string[],
|
||
|
|
values: Array<number | null | undefined>,
|
||
|
|
currentMinutes: number,
|
||
|
|
) {
|
||
|
|
const points = times
|
||
|
|
.map((time, index) => {
|
||
|
|
const minute = hmToMinutes(time);
|
||
|
|
const value = values[index];
|
||
|
|
return minute != null && value != null && Number.isFinite(Number(value))
|
||
|
|
? { minute, value: Number(value) }
|
||
|
|
: null;
|
||
|
|
})
|
||
|
|
.filter((point): point is { minute: number; value: number } => point != null);
|
||
|
|
|
||
|
|
if (!points.length) return null;
|
||
|
|
|
||
|
|
const exact = points.find((point) => point.minute === currentMinutes);
|
||
|
|
if (exact) return exact.value;
|
||
|
|
|
||
|
|
let left: { minute: number; value: number } | null = null;
|
||
|
|
let right: { minute: number; value: number } | null = null;
|
||
|
|
|
||
|
|
for (const point of points) {
|
||
|
|
if (point.minute < currentMinutes) {
|
||
|
|
left = point;
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
if (point.minute > currentMinutes) {
|
||
|
|
right = point;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (left && right) {
|
||
|
|
const span = right.minute - left.minute;
|
||
|
|
if (span <= 0) return left.value;
|
||
|
|
const ratio = (currentMinutes - left.minute) / span;
|
||
|
|
return Number((left.value + (right.value - left.value) * ratio).toFixed(1));
|
||
|
|
}
|
||
|
|
if (left) return left.value;
|
||
|
|
if (right) return right.value;
|
||
|
|
return null;
|
||
|
|
}
|