fix(compliance): Improve compliance

This commit is contained in:
2025-05-26 10:17:50 +00:00
parent 113ae22c42
commit e7c3a774a3
26 changed files with 2435 additions and 2010 deletions

View File

@ -1,7 +1,7 @@
import * as plugins from './plugins.js';
import { business, finance } from './plugins.js';
import type { TInvoice } from './interfaces/common.js';
import type { TInvoice, TAccountingDocItem } from '@tsclass/tsclass/dist_ts/finance/index.js';
import { InvoiceFormat, ValidationLevel } from './interfaces/common.js';
import type { ValidationResult, ValidationError, EInvoiceOptions, IPdf, ExportFormat } from './interfaces/common.js';
@ -30,34 +30,84 @@ import { FormatDetector } from './formats/utils/format.detector.js';
/**
* Main class for working with electronic invoices.
* Supports various invoice formats including Factur-X, ZUGFeRD, UBL, and XRechnung
* Implements TInvoice interface for seamless integration with existing systems
* Extends the TInvoice interface for seamless integration with existing systems
*/
export class EInvoice {
// TInvoice interface properties
export class EInvoice implements TInvoice {
/**
* Creates an EInvoice instance from XML string
* @param xmlString XML string to parse
* @returns EInvoice instance
*/
public static async fromXml(xmlString: string): Promise<EInvoice> {
const invoice = new EInvoice();
await invoice.fromXmlString(xmlString);
return invoice;
}
/**
* Creates an EInvoice instance from file
* @param filePath Path to the file
* @returns EInvoice instance
*/
public static async fromFile(filePath: string): Promise<EInvoice> {
const invoice = new EInvoice();
await invoice.fromFile(filePath);
return invoice;
}
/**
* Creates an EInvoice instance from PDF
* @param pdfBuffer PDF buffer
* @returns EInvoice instance
*/
public static async fromPdf(pdfBuffer: Buffer | string): Promise<EInvoice> {
const invoice = new EInvoice();
if (typeof pdfBuffer === 'string') {
// If given a file path
await invoice.fromPdfFile(pdfBuffer);
} else {
// If given a buffer, extract XML and parse it
const extractResult = await invoice.pdfExtractor.extractXml(pdfBuffer);
if (!extractResult.success || !extractResult.xml) {
throw new EInvoicePDFError('No invoice XML found in PDF', 'extract');
}
await invoice.fromXmlString(extractResult.xml);
}
return invoice;
}
// TInvoice interface properties - accounting document structure
public type: 'accounting-doc' = 'accounting-doc';
public accountingDocType: 'invoice' = 'invoice';
public accountingDocId: string = '';
public accountingDocStatus: 'draft' | 'issued' | 'paid' | 'canceled' | 'refunded' = 'issued';
// Business envelope properties
public id: string = '';
public invoiceId: string = '';
public invoiceType: 'creditnote' | 'debitnote' = 'debitnote';
public date = Date.now();
public status: 'draft' | 'issued' | 'paid' | 'canceled' | 'refunded' = 'issued';
public subject: string = '';
public versionInfo: business.TDocumentEnvelope<string, any>['versionInfo'] = {
type: 'draft',
version: '1.0.0'
};
public type: 'invoice' = 'invoice';
public date = Date.now();
public status: 'draft' | 'invoice' | 'paid' | 'refunded' = 'invoice';
public subject: string = '';
// Contact information
public from: business.TContact;
public to: business.TContact;
public legalContact?: business.TContact;
// Additional envelope properties
public incidenceId: string = '';
public language: string = 'en';
public legalContact?: business.TContact;
public objectActions: any[] = [];
public pdf: IPdf | null = null;
public pdfAttachments: IPdf[] | null = null;
public accentColor: string | null = null;
public logoUrl: string | null = null;
// Additional properties for invoice data
public items: finance.TInvoiceItem[] = [];
// Accounting document specific properties
public items: TAccountingDocItem[] = [];
public dueInDays: number = 30;
public reverseCharge: boolean = false;
public currency: finance.TCurrency = 'EUR';
@ -67,8 +117,66 @@ export class EInvoice {
public buyerReference?: string;
public electronicAddress?: { scheme: string; value: string };
public paymentOptions?: finance.IPaymentOptionInfo;
public relatedDocuments?: Array<{
relationType: 'corrects' | 'replaces' | 'references';
documentId: string;
issueDate?: number;
}>;
public printResult?: {
pdfBufferString: string;
totalNet: number;
totalGross: number;
vatGroups: {
percentage: number;
items: TAccountingDocItem[];
}[];
};
// Backward compatibility properties
public get invoiceId(): string { return this.accountingDocId; }
public set invoiceId(value: string) { this.accountingDocId = value; }
public get invoiceType(): 'invoice' | 'creditnote' | 'debitnote' {
return this.accountingDocType === 'invoice' ? 'invoice' :
this.accountingDocType === 'creditnote' ? 'creditnote' : 'debitnote';
}
public set invoiceType(value: 'invoice' | 'creditnote' | 'debitnote') {
this.accountingDocType = 'invoice'; // Always set to invoice for TInvoice type
}
// Computed properties for convenience
public get issueDate(): Date {
return new Date(this.date);
}
public set issueDate(value: Date) {
this.date = value.getTime();
}
public get totalNet(): number {
return this.calculateTotalNet();
}
public get totalVat(): number {
return this.calculateTotalVat();
}
public get totalGross(): number {
return this.totalNet + this.totalVat;
}
public get taxBreakdown(): Array<{ taxPercent: number; netAmount: number; taxAmount: number }> {
return this.calculateTaxBreakdown();
}
// EInvoice specific properties
public metadata?: {
format?: InvoiceFormat;
version?: string;
profile?: string;
customizationId?: string;
extensions?: Record<string, any>;
};
private xmlString: string = '';
private detectedFormat: InvoiceFormat = InvoiceFormat.UNKNOWN;
private validationErrors: ValidationError[] = [];
@ -101,263 +209,289 @@ export class EInvoice {
*/
private createEmptyContact(): business.TContact {
return {
name: '',
type: 'company',
name: '',
description: '',
address: {
streetName: '',
houseNumber: '0',
houseNumber: '',
city: '',
country: '',
postalCode: ''
},
status: 'active',
foundedDate: {
year: 2000,
month: 1,
day: 1
postalCode: '',
country: ''
},
registrationDetails: {
vatId: '',
registrationId: '',
registrationName: ''
},
status: 'active',
foundedDate: {
year: new Date().getFullYear(),
month: new Date().getMonth() + 1,
day: new Date().getDate()
}
} as business.TCompany;
}
/**
* Exports the invoice as XML in the specified format
* @param format The export format
* @returns XML string
*/
public async exportXml(format: ExportFormat): Promise<string> {
return this.toXmlString(format);
}
/**
* Loads invoice data from XML (alias for fromXmlString)
* @param xmlString The XML string to parse
* @returns The EInvoice instance for chaining
*/
public async loadXml(xmlString: string): Promise<EInvoice> {
return this.fromXmlString(xmlString);
}
/**
* Loads invoice data from an XML string
* @param xmlString The XML string to parse
* @returns The EInvoice instance for chaining
*/
public async fromXmlString(xmlString: string): Promise<EInvoice> {
try {
this.xmlString = xmlString;
// Detect format
this.detectedFormat = FormatDetector.detectFormat(xmlString);
if (this.detectedFormat === InvoiceFormat.UNKNOWN) {
throw new EInvoiceFormatError('Unknown invoice format', { sourceFormat: 'unknown' });
}
// Get appropriate decoder
const decoder = DecoderFactory.createDecoder(xmlString);
const invoice = await decoder.decode();
// Map the decoded invoice to our properties
this.mapFromTInvoice(invoice);
// Validate if requested
if (this.options.validateOnLoad) {
await this.validate(this.options.validationLevel);
}
return this;
} catch (error) {
if (error instanceof EInvoiceError) {
throw error;
}
throw new EInvoiceParsingError(`Failed to parse XML: ${error.message}`, {}, error as Error);
}
}
/**
* Loads invoice data from a file
* @param filePath Path to the file to load
* @returns The EInvoice instance for chaining
*/
public async fromFile(filePath: string): Promise<EInvoice> {
try {
const fileBuffer = await plugins.fs.readFile(filePath);
// Check if it's a PDF
if (filePath.toLowerCase().endsWith('.pdf') || fileBuffer.subarray(0, 4).toString() === '%PDF') {
return this.fromPdfFile(filePath);
}
// Otherwise treat as XML
const xmlString = fileBuffer.toString('utf-8');
return this.fromXmlString(xmlString);
} catch (error) {
throw new EInvoiceError(`Failed to load file: ${error.message}`, 'FILE_LOAD_ERROR', { filePath });
}
}
/**
* Loads invoice data from a PDF file
* @param filePath Path to the PDF file
* @returns The EInvoice instance for chaining
*/
public async fromPdfFile(filePath: string): Promise<EInvoice> {
try {
const pdfBuffer = await plugins.fs.readFile(filePath);
const extractResult = await this.pdfExtractor.extractXml(pdfBuffer);
const extractedXml = extractResult.success ? extractResult.xml : null;
if (!extractedXml) {
throw new EInvoicePDFError('No invoice XML found in PDF', 'extract', { filePath });
}
// Store the PDF for later use
this.pdf = {
name: plugins.path.basename(filePath),
id: plugins.crypto.createHash('md5').update(pdfBuffer).digest('hex'),
buffer: new Uint8Array(pdfBuffer),
metadata: {
textExtraction: '',
format: 'PDF/A-3',
embeddedXml: {
filename: 'factur-x.xml',
description: 'Factur-X Invoice'
}
}
};
return this.fromXmlString(extractedXml);
} catch (error) {
if (error instanceof EInvoiceError) {
throw error;
}
throw new EInvoicePDFError(`Failed to extract invoice from PDF: ${error.message}`, 'extract', {}, error as Error);
}
}
/**
* Maps data from a TInvoice to this EInvoice instance
*/
private mapFromTInvoice(invoice: TInvoice): void {
// Map all properties from the decoded invoice
Object.assign(this, invoice);
// Ensure backward compatibility
if (!this.id && this.accountingDocId) {
this.id = this.accountingDocId;
}
}
/**
* Maps this EInvoice instance to a TInvoice
*/
private mapToTInvoice(): TInvoice {
return {
type: 'accounting-doc',
accountingDocType: this.accountingDocType,
accountingDocId: this.accountingDocId || this.id,
accountingDocStatus: this.accountingDocStatus,
id: this.id,
date: this.date,
status: this.status,
subject: this.subject,
versionInfo: this.versionInfo,
from: this.from,
to: this.to,
legalContact: this.legalContact,
incidenceId: this.incidenceId,
language: this.language,
objectActions: this.objectActions,
items: this.items,
dueInDays: this.dueInDays,
reverseCharge: this.reverseCharge,
currency: this.currency,
notes: this.notes,
periodOfPerformance: this.periodOfPerformance,
deliveryDate: this.deliveryDate,
buyerReference: this.buyerReference,
electronicAddress: this.electronicAddress,
paymentOptions: this.paymentOptions,
relatedDocuments: this.relatedDocuments,
printResult: this.printResult
};
}
/**
* Creates a new EInvoice instance from XML
* @param xmlString XML content
* @param options Configuration options
* @returns EInvoice instance
* Exports the invoice to an XML string in the specified format
* @param format The target format
* @returns The XML string
*/
public static async fromXml(xmlString: string, options?: EInvoiceOptions): Promise<EInvoice> {
const einvoice = new EInvoice(options);
// Load XML data
await einvoice.loadXml(xmlString);
return einvoice;
}
/**
* Creates a new EInvoice instance from PDF
* @param pdfBuffer PDF buffer
* @param options Configuration options
* @returns EInvoice instance
*/
public static async fromPdf(pdfBuffer: Uint8Array | Buffer, options?: EInvoiceOptions): Promise<EInvoice> {
const einvoice = new EInvoice(options);
// Load PDF data
await einvoice.loadPdf(pdfBuffer);
return einvoice;
}
/**
* Loads XML data into the EInvoice instance
* @param xmlString XML content
* @param validate Whether to validate the XML
* @returns This instance for chaining
*/
public async loadXml(xmlString: string, validate: boolean = false): Promise<EInvoice> {
this.xmlString = xmlString;
// Detect format
this.detectedFormat = FormatDetector.detectFormat(xmlString);
public async toXmlString(format: ExportFormat): Promise<string> {
try {
// Initialize the decoder with the XML string using the factory
const decoder = DecoderFactory.createDecoder(xmlString);
// Decode the XML into a TInvoice object
const invoice = await decoder.decode();
// Copy data from the decoded invoice
this.copyInvoiceData(invoice);
// Validate the XML if requested or if validateOnLoad is true
if (validate || this.options.validateOnLoad) {
await this.validate(this.options.validationLevel);
}
const encoder = EncoderFactory.createEncoder(format);
const invoice = this.mapToTInvoice();
return await encoder.encode(invoice);
} catch (error) {
const context = new ErrorContext()
.add('format', this.detectedFormat)
.add('xmlLength', xmlString.length)
.addTimestamp()
.build();
if (error instanceof Error) {
throw new EInvoiceParsingError(
`Failed to load XML: ${error.message}`,
{ format: this.detectedFormat.toString(), ...context },
error
);
}
throw new EInvoiceParsingError('Failed to load XML: Unknown error', context);
throw new EInvoiceFormatError(`Failed to encode to ${format}: ${error.message}`, { targetFormat: format });
}
return this;
}
/**
* Loads PDF data into the EInvoice instance
* @param pdfBuffer PDF buffer
* @param validate Whether to validate the extracted XML
* @returns This instance for chaining
* Validates the invoice
* @param level The validation level to use
* @returns The validation result
*/
public async loadPdf(pdfBuffer: Uint8Array | Buffer, validate: boolean = false): Promise<EInvoice> {
public async validate(level: ValidationLevel = ValidationLevel.BUSINESS): Promise<ValidationResult> {
try {
// Extract XML from PDF using the consolidated extractor
const extractResult = await this.pdfExtractor.extractXml(pdfBuffer);
// Store the PDF buffer
this.pdf = {
name: 'invoice.pdf',
id: `invoice-${Date.now()}`,
metadata: {
textExtraction: '',
format: extractResult.success ? extractResult.format?.toString() : undefined
},
buffer: pdfBuffer instanceof Buffer ? new Uint8Array(pdfBuffer) : pdfBuffer
};
// Handle extraction result
if (!extractResult.success || !extractResult.xml) {
const errorMessage = extractResult.error ? extractResult.error.message : 'Unknown error extracting XML from PDF';
throw new EInvoicePDFError(
`Failed to extract XML from PDF: ${errorMessage}`,
'extract',
{
pdfInfo: {
size: pdfBuffer.length,
filename: 'invoice.pdf'
},
extractionMethod: 'standard'
},
extractResult.error?.originalError
);
const format = this.detectedFormat || InvoiceFormat.UNKNOWN;
if (format === InvoiceFormat.UNKNOWN) {
throw new EInvoiceValidationError('Cannot validate: format unknown', []);
}
// Load the extracted XML
await this.loadXml(extractResult.xml, validate);
// Store the detected format
this.detectedFormat = extractResult.format || InvoiceFormat.UNKNOWN;
return this;
} catch (error) {
if (error instanceof EInvoiceError) {
throw error; // Re-throw our errors
}
throw new EInvoicePDFError(
`Failed to load PDF: ${error instanceof Error ? error.message : 'Unknown error'}`,
'extract',
{ pdfSize: pdfBuffer.length },
error instanceof Error ? error : undefined
);
}
}
/**
* Copies data from a TInvoice object
* @param invoice Source invoice data
*/
private copyInvoiceData(invoice: TInvoice): void {
// Copy basic properties
this.id = invoice.id;
this.invoiceId = invoice.invoiceId || invoice.id;
this.invoiceType = invoice.invoiceType;
this.versionInfo = { ...invoice.versionInfo };
this.type = invoice.type;
this.date = invoice.date;
this.status = invoice.status;
this.subject = invoice.subject;
this.from = { ...invoice.from };
this.to = { ...invoice.to };
this.incidenceId = invoice.incidenceId;
this.language = invoice.language;
this.legalContact = invoice.legalContact ? { ...invoice.legalContact } : undefined;
this.objectActions = [...invoice.objectActions];
this.pdf = invoice.pdf;
this.pdfAttachments = invoice.pdfAttachments;
// Copy invoice-specific properties
if (invoice.items) this.items = [...invoice.items];
if (invoice.dueInDays) this.dueInDays = invoice.dueInDays;
if (invoice.reverseCharge !== undefined) this.reverseCharge = invoice.reverseCharge;
if (invoice.currency) this.currency = invoice.currency;
if (invoice.notes) this.notes = [...invoice.notes];
if (invoice.periodOfPerformance) this.periodOfPerformance = { ...invoice.periodOfPerformance };
if (invoice.deliveryDate) this.deliveryDate = invoice.deliveryDate;
if (invoice.buyerReference) this.buyerReference = invoice.buyerReference;
if (invoice.electronicAddress) this.electronicAddress = { ...invoice.electronicAddress };
if (invoice.paymentOptions) this.paymentOptions = { ...invoice.paymentOptions };
}
/**
* Validates the XML against the appropriate format rules
* @param level Validation level (syntax, semantic, business)
* @returns Validation result
*/
public async validate(level: ValidationLevel = ValidationLevel.SYNTAX): Promise<ValidationResult> {
if (!this.xmlString) {
throw new EInvoiceValidationError(
'No XML content available for validation',
[{
code: 'VAL-001',
message: 'XML content must be loaded before validation',
severity: 'error'
}]
);
}
try {
// Initialize the validator with the XML string
const validator = ValidatorFactory.createValidator(this.xmlString);
// Run validation
const result = validator.validate(level);
// Store validation errors
this.validationErrors = result.errors;
return result;
} catch (error) {
const validationError = new EInvoiceValidationError(
`Validation failed: ${error instanceof Error ? error.message : 'Unknown error'}`,
[{
code: 'VAL-ERROR',
message: error instanceof Error ? error.message : String(error),
severity: 'error'
}],
{
format: this.detectedFormat,
level
}
);
this.validationErrors = validationError.validationErrors;
return {
valid: false,
errors: validationError.validationErrors,
level
};
if (error instanceof EInvoiceError) {
throw error;
}
throw new EInvoiceValidationError(`Validation failed: ${error.message}`, [], { validationLevel: level });
}
}
/**
* Checks if the invoice is valid
* @returns True if no validation errors were found
* Embeds the invoice XML into a PDF
* @param pdfBuffer The PDF buffer to embed into
* @param format The format to use for embedding
* @returns The PDF buffer with embedded XML
*/
public isValid(): boolean {
return this.validationErrors.length === 0;
public async embedInPdf(pdfBuffer: Buffer, format: ExportFormat = 'facturx'): Promise<Buffer> {
try {
const xmlString = await this.toXmlString(format);
const embedResult = await this.pdfEmbedder.embedXml(pdfBuffer, xmlString, 'invoice.xml', `${format} Invoice`);
if (!embedResult.success) {
throw new EInvoicePDFError('Failed to embed XML in PDF', 'embed', { format });
}
return embedResult.data! as Buffer;
} catch (error) {
throw new EInvoicePDFError(`Failed to embed XML in PDF: ${error.message}`, 'embed', { format }, error as Error);
}
}
/**
* Gets validation errors from the last validation
* Saves the invoice to a file
* @param filePath The path to save to
* @param format The format to save in
*/
public async saveToFile(filePath: string, format?: ExportFormat): Promise<void> {
try {
// Determine format from file extension if not provided
if (!format && filePath.toLowerCase().endsWith('.xml')) {
format = this.detectedFormat === InvoiceFormat.UBL ? 'ubl' :
this.detectedFormat === InvoiceFormat.ZUGFERD ? 'zugferd' :
this.detectedFormat === InvoiceFormat.FACTURX ? 'facturx' :
'xrechnung';
}
if (filePath.toLowerCase().endsWith('.pdf')) {
// Save as PDF with embedded XML
if (!this.pdf) {
throw new EInvoiceError('No PDF available to save', 'NO_PDF_ERROR');
}
const pdfWithXml = await this.embedInPdf(Buffer.from(this.pdf.buffer), format);
await plugins.fs.writeFile(filePath, pdfWithXml);
} else {
// Save as XML
const xmlString = await this.toXmlString(format || 'xrechnung');
await plugins.fs.writeFile(filePath, xmlString, 'utf-8');
}
} catch (error) {
if (error instanceof EInvoiceError) {
throw error;
}
throw new EInvoiceError(`Failed to save file: ${error.message}`, 'FILE_SAVE_ERROR', { filePath });
}
}
/**
* Gets the validation errors
* @returns Array of validation errors
*/
public getValidationErrors(): ValidationError[] {
@ -365,113 +499,83 @@ export class EInvoice {
}
/**
* Exports the invoice as XML in the specified format
* @param format Target format (e.g., 'facturx', 'xrechnung')
* @returns XML string in the specified format
* Checks if the invoice is valid
* @returns True if valid, false otherwise
*/
public async exportXml(format: ExportFormat = 'facturx'): Promise<string> {
// Create encoder for the specified format
const encoder = EncoderFactory.createEncoder(format);
// Generate XML
return await encoder.encode(this as unknown as TInvoice);
public isValid(): boolean {
return this.validationErrors.length === 0;
}
/**
* Exports the invoice as a PDF with embedded XML
* @param format Target format (e.g., 'facturx', 'zugferd', 'xrechnung', 'ubl')
* @returns PDF object with embedded XML
*/
public async exportPdf(format: ExportFormat = 'facturx'): Promise<IPdf> {
if (!this.pdf) {
throw new EInvoicePDFError(
'No PDF data available for export',
'create',
{
suggestion: 'Use loadPdf() first or set the pdf property before exporting'
}
);
}
// Generate XML in the specified format
const xmlContent = await this.exportXml(format);
// Determine filename based on format
let filename = 'invoice.xml';
let description = 'XML Invoice';
switch (format.toLowerCase()) {
case 'facturx':
filename = 'factur-x.xml';
description = 'Factur-X XML Invoice';
break;
case 'zugferd':
filename = 'zugferd-invoice.xml';
description = 'ZUGFeRD XML Invoice';
break;
case 'xrechnung':
filename = 'xrechnung.xml';
description = 'XRechnung XML Invoice';
break;
case 'ubl':
filename = 'ubl-invoice.xml';
description = 'UBL XML Invoice';
break;
}
// Embed XML into PDF
const result = await this.pdfEmbedder.createPdfWithXml(
this.pdf.buffer,
xmlContent,
filename,
description,
this.pdf.name,
this.pdf.id
);
// Handle potential errors
if (!result.success || !result.pdf) {
const errorMessage = result.error ? result.error.message : 'Unknown error embedding XML into PDF';
throw new EInvoicePDFError(
`Failed to embed XML into PDF: ${errorMessage}`,
'embed',
{
format,
xmlLength: xmlContent.length,
pdfInfo: {
filename: this.pdf.name,
size: this.pdf.buffer.length
}
},
result.error?.originalError
);
}
return result.pdf;
}
/**
* Gets the raw XML content
* @returns XML string
*/
public getXml(): string {
return this.xmlString;
}
/**
* Gets the invoice format as an enum value
* @returns InvoiceFormat enum value
* Gets the detected format
* @returns The detected invoice format
*/
public getFormat(): InvoiceFormat {
return this.detectedFormat;
}
/**
* Checks if the invoice is in the specified format
* @param format Format to check
* @returns True if the invoice is in the specified format
* Calculates the total net amount
*/
public isFormat(format: InvoiceFormat): boolean {
return this.detectedFormat === format;
private calculateTotalNet(): number {
return this.items.reduce((sum, item) => {
return sum + (item.unitQuantity * item.unitNetPrice);
}, 0);
}
/**
* Calculates the total VAT amount
*/
private calculateTotalVat(): number {
return this.items.reduce((sum, item) => {
const net = item.unitQuantity * item.unitNetPrice;
return sum + (net * item.vatPercentage / 100);
}, 0);
}
/**
* Calculates tax breakdown by rate
*/
private calculateTaxBreakdown(): Array<{ taxPercent: number; netAmount: number; taxAmount: number }> {
const breakdown = new Map<number, { net: number; tax: number }>();
this.items.forEach(item => {
const net = item.unitQuantity * item.unitNetPrice;
const tax = net * item.vatPercentage / 100;
const current = breakdown.get(item.vatPercentage) || { net: 0, tax: 0 };
breakdown.set(item.vatPercentage, {
net: current.net + net,
tax: current.tax + tax
});
});
return Array.from(breakdown.entries()).map(([rate, amounts]) => ({
taxPercent: rate,
netAmount: amounts.net,
taxAmount: amounts.tax
}));
}
/**
* Creates a new invoice item
*/
public createItem(data: Partial<TAccountingDocItem>): TAccountingDocItem {
return {
position: data.position || this.items.length + 1,
name: data.name || '',
articleNumber: data.articleNumber,
unitType: data.unitType || 'unit',
unitQuantity: data.unitQuantity || 1,
unitNetPrice: data.unitNetPrice || 0,
vatPercentage: data.vatPercentage || 0
};
}
/**
* Adds an item to the invoice
*/
public addItem(item: Partial<TAccountingDocItem>): void {
this.items.push(this.createItem(item));
}
}