wehub-resource-sync
49 lines
1.3 KiB
TypeScript
49 lines
1.3 KiB
TypeScript
type Options<R> = {
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startDate: Date;
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endDate: Date;
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window?: "MINUTE" | "HOUR" | "DAY";
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data: { date: Date; value?: R }[];
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};
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export function createTimeSeriesData<R>({ startDate, endDate, window = "DAY", data }: Options<R>) {
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const outputData: Array<{ date: Date; value?: R }> = [];
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const periodLength = periodLengthMs(window);
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const periodCount = Math.round((endDate.getTime() - startDate.getTime()) / periodLength);
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for (let i = 0; i < periodCount; i++) {
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const periodStart = new Date(startDate);
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periodStart.setTime(periodStart.getTime() + i * periodLength);
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const periodEnd = new Date(startDate);
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periodEnd.setTime(periodEnd.getTime() + (i + 1) * periodLength);
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const foundData = data.find((d) => {
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const time = d.date.getTime();
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const inRange = time >= periodStart.getTime() && time < periodEnd.getTime();
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return inRange;
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});
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if (!foundData) {
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outputData.push({
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date: periodStart,
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});
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} else {
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outputData.push({
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date: periodStart,
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value: foundData.value,
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});
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}
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}
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return outputData;
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}
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function periodLengthMs(window: "MINUTE" | "HOUR" | "DAY") {
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switch (window) {
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case "MINUTE":
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return 60_000;
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case "HOUR":
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return 3_600_000;
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case "DAY":
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return 86_400_000;
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}
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}
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