Quality Dimension Generator

import { TimeContext } from './types.js'; /** * Time Context Manager * Provides basic time and timezone information */ export class TimeContextManager { /** * Get current time context */ public getCurrentTimeContext(timezone?: string, locale?: string): TimeContext { const now = new Date(); const systemLocale = locale || this.getSystemLocale(); // Convert time if timezone is specified const targetTime = timezone ? this.convertToTimezone(now, timezone) : now; return { timestamp: targetTime.getTime(), formattedTime: this.formatDateTime(targetTime, systemLocale), timezone: timezone || this.getSystemTimezone(), year: targetTime.getFullYear(), month: targetTime.getMonth() + 1, // JavaScript months start from 0 day: targetTime.getDate(), weekday: this.getWeekdayName(targetTime, systemLocale) }; } /** * Convert to specified timezone */ private convertToTimezone(date: Date, timezone: string): Date { try { // Use Intl.DateTimeFormat for timezone conversion const formatter = new Intl.DateTimeFormat('en-US', { timeZone: timezone, year: 'numeric', month: '2-digit', day: '2-digit', hour: '2-digit', minute: '2-digit', second: '2-digit', hour12: false }); const parts = formatter.formatToParts(date); const partsObj = parts.reduce((acc, part) => { acc[part.type] = part.value; return acc; }, {} as Record<string, string>); return new Date( parseInt(partsObj.year), parseInt(partsObj.month) - 1, parseInt(partsObj.day), parseInt(partsObj.hour), parseInt(partsObj.minute), parseInt(partsObj.second) ); } catch (error) { console.warn(`Invalid timezone: ${timezone}, using system timezone`); return date; } } /** * Get system timezone */ private getSystemTimezone(): string { try { return Intl.DateTimeFormat().resolvedOptions().timeZone; } catch { return 'UTC'; } } /** * Get system locale */ private getSystemLocale(): string { try { // Try to get system locale from Intl return Intl.DateTimeFormat().resolvedOptions().locale; } catch { // Fallback to en-US if detection fails return 'en-US'; } } /** * Format date and time */ private formatDateTime(date: Date, locale: string): string { try { return new Intl.DateTimeFormat(locale, { year: 'numeric', month: 'long', day: 'numeric', weekday: 'long', hour: '2-digit', minute: '2-digit', second: '2-digit', timeZoneName: 'short' }).format(date); } catch { // Use default format if localization fails return date.toLocaleString(); } } /** * Get weekday name */ private getWeekdayName(date: Date, locale: string): string { try { return new Intl.DateTimeFormat(locale, { weekday: 'long' }).format(date); } catch { const weekdays = ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday']; return weekdays[date.getDay()]; } } }