import { InvoiceResponse } from '../types';
export declare class ValidationUtils {
    static isNotEmpty(value: string | undefined | null): boolean;
    static isPositiveNumber(value: number | undefined | null): boolean;
    static isNotEmptyArray<T>(value: T[] | undefined | null): boolean;
    static isValidEmail(email: string): boolean;
    static isValidNIT(nit: string): boolean;
}
export declare class FormatUtils {
    static formatCurrency(amount: number): string;
    static formatDate(date: Date | string): string;
    static formatInvoiceDate(date: Date | string): string;
    static truncateText(text: string, maxLength: number): string;
    static toUpperCase(text: string): string;
    static toTitleCase(text: string): string;
}
export declare class SiatUtils {
    static extractBasicInfo(data: InvoiceResponse): {
        emisor: string;
        nit: string | number;
        factura: string | number;
        total: number;
        fecha: string;
        items: number;
        cliente: string;
    };
    static calculateTotals(data: InvoiceResponse): {
        subtotal: number;
        descuento: number;
        total: number;
        giftCard: number;
        montoPagar: number;
    };
    static validateStructure(data: any): boolean;
}
export declare class DebugUtils {
    static createDataSummary(data: InvoiceResponse): string;
    static log(message: string, data?: any): void;
    static logError(message: string, error: any): void;
}
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