152 lines
3.8 KiB
TypeScript
152 lines
3.8 KiB
TypeScript
import * as plugins from './plugins.js';
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/**
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* A class to convert a given ZUGFeRD XML string
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* into a structured ILetter with invoice data.
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*
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* Handles different invoice XML formats:
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* - ZUGFeRD/Factur-X (CII)
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* - UBL
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* - FatturaPA
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*/
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export class ZUGFeRDXmlDecoder {
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private xmlString: string;
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private xmlFormat: string;
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constructor(xmlString: string) {
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if (!xmlString) {
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throw new Error('No XML string provided to decoder');
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}
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this.xmlString = xmlString;
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// Simple format detection based on string contents
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this.xmlFormat = this.detectFormat();
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}
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/**
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* Detects the XML invoice format using simple string checks
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*/
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private detectFormat(): string {
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// ZUGFeRD/Factur-X (CII format)
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if (this.xmlString.includes('CrossIndustryInvoice') ||
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this.xmlString.includes('un/cefact') ||
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this.xmlString.includes('rsm:')) {
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return 'CII';
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}
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// UBL format
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if (this.xmlString.includes('Invoice') ||
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this.xmlString.includes('oasis:names:specification:ubl')) {
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return 'UBL';
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}
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// FatturaPA format
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if (this.xmlString.includes('FatturaElettronica') ||
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this.xmlString.includes('fatturapa.gov.it')) {
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return 'FatturaPA';
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}
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// Default to generic
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return 'unknown';
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}
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/**
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* Converts XML to a structured letter object
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*/
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public async getLetterData(): Promise<plugins.tsclass.business.ILetter> {
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try {
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// Try using SmartXml from plugins as a fallback
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const smartxmlInstance = new plugins.smartxml.SmartXml();
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return smartxmlInstance.parseXmlToObject(this.xmlString);
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} catch (error) {
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console.error('Error converting XML to letter data:', error);
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// If all else fails, return a minimal letter object
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return this.createDefaultLetter();
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}
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}
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/**
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* Creates a default letter object with minimal data
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*/
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private createDefaultLetter(): plugins.tsclass.business.ILetter {
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// Create a default seller
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const seller: plugins.tsclass.business.IContact = {
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name: 'Unknown Seller',
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type: 'company',
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address: {
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streetName: 'Unknown',
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city: 'Unknown',
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country: 'Unknown',
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postalCode: 'Unknown',
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},
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};
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// Create a default buyer
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const buyer: plugins.tsclass.business.IContact = {
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name: 'Unknown Buyer',
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type: 'company',
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address: {
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streetName: 'Unknown',
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city: 'Unknown',
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country: 'Unknown',
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postalCode: 'Unknown',
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},
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};
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// Create default invoice data
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const invoiceData: plugins.tsclass.business.IInvoiceData = {
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id: 'Unknown',
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status: null,
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type: 'invoice',
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billedBy: seller,
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billedTo: buyer,
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deliveryDate: Date.now(),
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dueInDays: 30,
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periodOfPerformance: null,
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printResult: null,
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currency: 'EUR',
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notes: [],
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items: [
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{
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name: 'Unknown Item',
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unitQuantity: 1,
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unitNetPrice: 0,
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vatPercentage: 0,
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position: 0,
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unitType: 'units',
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}
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],
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reverseCharge: false,
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};
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// Return a default letter
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return {
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versionInfo: {
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type: 'extracted',
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version: '1.0.0',
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},
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type: 'invoice',
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date: Date.now(),
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subject: `Extracted Invoice (${this.xmlFormat} format)`,
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from: seller,
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to: buyer,
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content: {
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invoiceData: invoiceData,
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textData: null,
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timesheetData: null,
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contractData: null,
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},
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needsCoverSheet: false,
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objectActions: [],
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pdf: null,
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incidenceId: null,
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language: null,
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legalContact: null,
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logoUrl: null,
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pdfAttachments: null,
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accentColor: null,
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};
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}
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} |