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wwwroot/js/utils/DateCalculator.d.ts

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+/**
+ * DateCalculator - Centralized date calculation logic for calendar
+ * Handles all date computations with proper week start handling
+ */
+import { CalendarConfig } from '../core/CalendarConfig';
+export declare class DateCalculator {
+    private static config;
+    /**
+     * Initialize DateCalculator with configuration
+     * @param config - Calendar configuration
+     */
+    static initialize(config: CalendarConfig): void;
+    /**
+     * Validate that a date is valid
+     * @param date - Date to validate
+     * @param methodName - Name of calling method for error messages
+     * @throws Error if date is invalid
+     */
+    private static validateDate;
+    /**
+     * Get dates for work week using ISO 8601 day numbering (Monday=1, Sunday=7)
+     * @param weekStart - Any date in the week
+     * @returns Array of dates for the configured work days
+     */
+    static getWorkWeekDates(weekStart: Date): Date[];
+    /**
+     * Get the start of the ISO week (Monday) for a given date
+     * @param date - Any date in the week
+     * @returns The Monday of the ISO week
+     */
+    static getISOWeekStart(date: Date): Date;
+    /**
+     * Get the end of the ISO week for a given date
+     * @param date - Any date in the week
+     * @returns The end date of the ISO week (Sunday)
+     */
+    static getWeekEnd(date: Date): Date;
+    /**
+     * Get week number for a date (ISO 8601)
+     * @param date - The date to get week number for
+     * @returns Week number (1-53)
+     */
+    static getWeekNumber(date: Date): number;
+    /**
+     * Format a date range with customizable options
+     * @param start - Start date
+     * @param end - End date
+     * @param options - Formatting options
+     * @returns Formatted date range string
+     */
+    static formatDateRange(start: Date, end: Date, options?: {
+        locale?: string;
+        month?: 'numeric' | '2-digit' | 'long' | 'short' | 'narrow';
+        day?: 'numeric' | '2-digit';
+        year?: 'numeric' | '2-digit';
+    }): string;
+    /**
+     * Format a date to ISO date string (YYYY-MM-DD)
+     * @param date - Date to format
+     * @returns ISO date string
+     */
+    static formatISODate(date: Date): string;
+    /**
+     * Check if a date is today
+     * @param date - Date to check
+     * @returns True if the date is today
+     */
+    static isToday(date: Date): boolean;
+    /**
+     * Add days to a date
+     * @param date - Base date
+     * @param days - Number of days to add (can be negative)
+     * @returns New date
+     */
+    static addDays(date: Date, days: number): Date;
+    /**
+     * Add weeks to a date
+     * @param date - Base date
+     * @param weeks - Number of weeks to add (can be negative)
+     * @returns New date
+     */
+    static addWeeks(date: Date, weeks: number): Date;
+    /**
+     * Get all dates in a week
+     * @param weekStart - Start of the week
+     * @returns Array of 7 dates for the full week
+     */
+    static getFullWeekDates(weekStart: Date): Date[];
+    /**
+     * Get the day name for a date using Intl.DateTimeFormat
+     * @param date - Date to get day name for
+     * @param format - 'short' or 'long'
+     * @returns Day name
+     */
+    static getDayName(date: Date, format?: 'short' | 'long'): string;
+    /**
+     * Format time to HH:MM
+     * @param date - Date to format
+     * @returns Time string
+     */
+    static formatTime(date: Date): string;
+    /**
+     * Format time to 12-hour format
+     * @param date - Date to format
+     * @returns 12-hour time string
+     */
+    static formatTime12(date: Date): string;
+    /**
+     * Convert minutes since midnight to time string
+     * @param minutes - Minutes since midnight
+     * @returns Time string
+     */
+    static minutesToTime(minutes: number): string;
+    /**
+     * Convert time string to minutes since midnight
+     * @param timeStr - Time string
+     * @returns Minutes since midnight
+     */
+    static timeToMinutes(timeStr: string): number;
+    /**
+     * Get minutes since start of day
+     * @param date - Date or ISO string
+     * @returns Minutes since midnight
+     */
+    static getMinutesSinceMidnight(date: Date | string): number;
+    /**
+     * Calculate duration in minutes between two dates
+     * @param start - Start date or ISO string
+     * @param end - End date or ISO string
+     * @returns Duration in minutes
+     */
+    static getDurationMinutes(start: Date | string, end: Date | string): number;
+    /**
+     * Check if two dates are on the same day
+     * @param date1 - First date
+     * @param date2 - Second date
+     * @returns True if same day
+     */
+    static isSameDay(date1: Date, date2: Date): boolean;
+    /**
+     * Check if event spans multiple days
+     * @param start - Start date or ISO string
+     * @param end - End date or ISO string
+     * @returns True if spans multiple days
+     */
+    static isMultiDay(start: Date | string, end: Date | string): boolean;
+    constructor();
+}
+export declare function createDateCalculator(config: CalendarConfig): DateCalculator;