56 lines
1.3 KiB
TypeScript
56 lines
1.3 KiB
TypeScript
/**
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* Date and time utilities for working with market data
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*/
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export const dateUtils = {
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/**
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* Check if a date is a trading day (Monday-Friday, non-holiday)
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* This is a simplified implementation - a real version would check market holidays
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*/
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isTradingDay(date: Date): boolean {
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const day = date.getDay();
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return day > 0 && day < 6; // Mon-Fri
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},
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/**
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* Get the next trading day from a given date
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*/
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getNextTradingDay(date: Date): Date {
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const nextDay = new Date(date);
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nextDay.setDate(nextDay.getDate() + 1);
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while (!this.isTradingDay(nextDay)) {
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nextDay.setDate(nextDay.getDate() + 1);
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}
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return nextDay;
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},
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/**
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* Get the previous trading day from a given date
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*/
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getPreviousTradingDay(date: Date): Date {
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const prevDay = new Date(date);
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prevDay.setDate(prevDay.getDate() - 1);
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while (!this.isTradingDay(prevDay)) {
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prevDay.setDate(prevDay.getDate() - 1);
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}
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return prevDay;
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},
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/**
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* Format a date as YYYY-MM-DD
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*/
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formatDate(date: Date): string {
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const parts = date.toISOString().split('T');
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return parts[0] ?? '';
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},
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/**
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* Parse a date string in YYYY-MM-DD format
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*/
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parseDate(dateStr: string): Date {
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return new Date(dateStr);
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},
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};
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