import { juggler } from '@loopback/repository';
import { AddressData } from '../models/invoice/address-data.model';
import { BaseInvoiceRepository, NumberInvoicesRepository } from '../repositories';
/**
 * Handles generating unique and consecutive numbers for invoices.
 */
export declare class BaseInvoiceNumberService {
    private readonly invoiceRepository;
    private readonly numberInvoicesRepository;
    /**
     * The number of digits used to generate the consecutive number.
     * @default 4
     */
    protected readonly NUMBER_OF_DIGITS: number;
    /**
     * The separator for the parts of the invoice number.
     * @default '-'
     */
    protected readonly SEPARATOR: string;
    /**
     * How many characters of the company name should be used in the invoice number.
     * @default 6
     */
    protected readonly NUMBER_COMPANY_ABBREVIATION_CHARACTERS: number;
    /**
     * How many characters of the private customer first and last name should be used in the invoice number.
     * @default 3
     */
    protected readonly NUMBER_PRIVATE_CUSTOMER_ABBREVIATION_CHARACTERS: number;
    constructor(invoiceRepository: BaseInvoiceRepository, numberInvoicesRepository: NumberInvoicesRepository);
    /**
     * Generates a new invoice number.
     * @param recipientId - The id of the recipient of the invoice.
     * @param invoiceAddress - The address data of the customer.
     * @param transaction - An optional transaction from outside to make sure any changes only apply when the transaction is committed.
     * @param nameAbbreviation - An optional name abbreviation if you don't want to generate one.
     * @returns A promise of the new invoice number.
     */
    generateInvoiceNumber(recipientId: string, invoiceAddress: AddressData, transaction?: juggler.Transaction, nameAbbreviation?: string): Promise<string>;
    /**
     * Generates a temporary invoice number with the prefix temp.
     * This does not increase the number of invoices which can be helpful if you create an invoice that might not be sent out.
     * @param recipientId - The id of the recipient of the invoice.
     * @param invoiceAddress - The address data of the customer.
     * @param nameAbbreviation - An optional name abbreviation if you don't want to generate one.
     * @returns A promise of the new temporary invoice number.
     */
    generateTemporaryInvoiceNumber(recipientId: string, invoiceAddress: AddressData, nameAbbreviation?: string): Promise<string>;
    /**
     * Gets the temporary consecutive number of the invoices in this year and for the provided recipientId.
     * Prefixes it with zeroes until the result has the same length as this.NUMBER_OF_DIGITS.
     * @param recipientId - The id of the recipient of the invoice.
     * @returns The number of invoices over a year filled up with zeroes to match this.NUMBER_OF_DIGITS.
     */
    protected getTemporaryConsecutiveNumber(recipientId: string): Promise<string>;
    /**
     * Gets the consecutive number of the invoices in this year.
     * Prefixes it with zeroes until the result has the same length as this.NUMBER_OF_DIGITS.
     * @param recipientId - The id of the recipient of the invoice.
     * @param transaction - An optional transaction from outside to make sure any changes only apply when the transaction is committed.
     * @returns The number of invoices over a year filled up with zeroes to match this.NUMBER_OF_DIGITS.
     */
    protected getConsecutiveNumber(recipientId: string, transaction?: juggler.Transaction): Promise<string>;
    /**
     * Gets the customer name abbreviation.
     * @param invoiceAddress - The address data to get the name abbreviation from.
     * @returns The first char of first and last name for private customers
     * and the first two chars of the company name for company customers.
     */
    protected getCustomerNameAbbreviation(invoiceAddress: AddressData): string;
    private getPrivateCustomerAbbreviation;
    private getCompanyNameAbbreviation;
    /**
     * Validates the given invoice number.
     * @param invoiceNumber - The invoice number to validate.
     */
    protected validateInvoiceNumber(invoiceNumber: string): Promise<void>;
}