export declare enum Weekday {
    Sunday = 0,
    Monday = 1,
    Tuesday = 2,
    Wednesday = 3,
    Thursday = 4,
    Friday = 5,
    Saturday = 6
}
export declare class DateCodeModel {
    dateCode: string;
    constructor(dateCode: string | number);
    getByOffset(offset: number): DateCodeModel;
    isValid(): boolean;
    getDate(): Date;
    static getRange(startDate: DateCodeModel, endDate: DateCodeModel): DateCodeModel[];
    static fromDate(date: Date): string;
    getFormattedDate(): string;
    getFormattedDateWithMonthName(): string;
    static formatDateCode(dateCode: string): string;
    isWithinOffset(offsetInDays?: number): boolean;
    static getFinancialYearRange(dateCodeModel: DateCodeModel): {
        startDate: DateCodeModel;
        endDate: DateCodeModel;
    };
    getRange(dateCodeModel: DateCodeModel): DateCodeModel[];
    static diffInDays(startModel: DateCodeModel, endModel: DateCodeModel, excludeDays?: Weekday[], excludeDateCodes?: DateCodeModel[]): number;
    getMonthStartDateCodeEndDateCodeIST(): {
        startDate: DateCodeModel;
        endDate: DateCodeModel;
    };
    static getByPredicates(models: DateCodeModel[], includePredicates: ((dateModel: DateCodeModel) => boolean)[], excludePredicates: ((dateModel: DateCodeModel) => boolean)[]): DateCodeModel[];
    static getWeekdaysPredicate(weekdays: Weekday[]): (dateModel: DateCodeModel) => boolean;
    static getDateCodesPredicate(dateCodes: DateCodeModel[]): (dateModel: DateCodeModel) => boolean;
    diffInDays(endModel: DateCodeModel, excludeDays?: Weekday[], excludeDateCodes?: DateCodeModel[]): number;
    static calculateNumberOfDays(startDateCode: string, endDateCode: string): number;
    isDayPresent(days: Weekday[]): boolean;
    isSame(dateCodeModel: DateCodeModel): boolean;
    getWeekday(): Weekday;
    getDateInIST(): Date;
    static getDaysInCurrentMonth(): number;
    getDaysInMonth(dateCode?: string): number;
    isPresent(dateCodes: DateCodeModel[]): boolean;
    static fromEpochSeconds(epochSeconds: number): number;
    static getCurrentMonthEpochRange(): {
        epochStartTime: number;
        epochEndTime: number;
    };
    static getFinancialYearEpochRangeForDate(date: Date): {
        epochStartTime: number;
        epochEndTime: number;
    };
    static getCurrentFinancialYearEpochDateRange(): {
        epochStartTime: number;
        epochEndTime: number;
    };
    /**
     * Returns a 4-digit financial year code for invoice numbering.
     * Example:
     *  - Date = 2026-02-10 → FY = 2025–26 → returns "2526"
     *  - Date = 2026-05-01 → FY = 2026–27 → returns "2627"
     */
    static getFinancialYearCode(date: Date): string;
    static epochToYYYYMMDD(epochSeconds: number): string;
    static getFinancialYearCodesFromDate(date: Date): {
        prevFY: string;
        currFY: string;
    };
    static getCurrentTimestampCode(): string;
    static getTodayISTEpochRange(): {
        epochStartTime: number;
        epochEndTime: number;
    };
    /**
     * Creates a DateCodeModel instance directly from a JavaScript Date object.
     * Internally formats the date to "yyyyMMdd" and constructs the model.
     *
     * @param date - A valid JavaScript Date object
     * @returns A new DateCodeModel instance representing the given date
     *
     * @example
     * const model = DateCodeModel.fromDateObject(new Date('2025-01-01'));
     * // equivalent to: new DateCodeModel(DateCodeModel.fromDate(new Date('2025-01-01')))
     */
    static fromDateObject(date: Date): DateCodeModel;
    /**
     * Returns the earliest (min) and latest (max) dateCodes (YYYYMMDD) from a list.
     * Accepts string | undefined | DateCodeModel and normalizes internally.
     */
    static getMinMax(dateCodes: (string | undefined | DateCodeModel)[]): {
        min: string | null;
        max: string | null;
    };
    toStringFormat(dateFormat: string): string;
    static getCurrentISTDateTimeCode(): {
        dateCode: string;
        timeCode: string;
    };
}