import assert from "node:assert/strict"
import test from "node:test"
import { PDFDocument } from "pdf-lib"
import { detectElectronicInvoice } from "../src/modules/einvoice/detectElectronicInvoice"
import { parseElectronicInvoice } from "../src/modules/einvoice/parseElectronicInvoice"
import { mapElectronicInvoiceToIncomingInvoice } from "../src/modules/einvoice/mapElectronicInvoice"
const ciiInvoice = Buffer.from(`
urn:factur-x.eu:1p0:en16931
RE-2026-10038020260721
Wartung
2
S19100.00
Leitweg-1Beispiel GmbHDE123456789
EUR5820260820100.0019.00119.00119.00
`)
const ublInvoice = Buffer.from(`
urn:cen.eu:en16931:2017#compliant#urn:xeinkauf.de:kosit:xrechnung_3.0XR-422026-07-212026-08-20EUR
UBL LieferantDE987654321VAT
30
7.00
100.00107.00107.00
11100.00MaterialS7
`)
test("erkennt und liest eine eingebettete Factur-X-Rechnung", async () => {
const document = await PDFDocument.create()
document.addPage()
await document.attach(ciiInvoice, "factur-x.xml", { mimeType: "application/xml", afRelationship: "Data" })
const detection = await detectElectronicInvoice(Buffer.from(await document.save()), { name: "rechnung.pdf" })
assert.equal(detection?.container, "pdf")
assert.equal(detection?.syntax, "cii")
const parsed = parseElectronicInvoice(detection!.xml, detection!.syntax)
assert.equal(parsed.invoiceNumber, "RE-2026-100")
assert.equal(parsed.seller.vatId, "DE123456789")
assert.equal(parsed.items[0].grossAmount, 119)
assert.deepEqual(parsed.validation.errors, [])
})
test("liest eine eigenständige UBL-XRechnung und mappt sie nach FEDEO", async () => {
const detection = await detectElectronicInvoice(ublInvoice, { name: "xrechnung.xml" })
assert.equal(detection?.syntax, "ubl-invoice")
const parsed = parseElectronicInvoice(detection!.xml, detection!.syntax)
const mapped = mapElectronicInvoiceToIncomingInvoice(parsed, 5, 12, "xml", "xrechnung.xml")
assert.equal(mapped.reference, "XR-42")
assert.equal(mapped.vendor, 12)
assert.equal(mapped.paymentType, "Überweisung")
assert.equal(mapped.state, "Vorbereitet")
assert.equal(mapped.accounts[0].amountTax, 7)
})
test("markiert Summenabweichungen als Prüfungsfehler", () => {
const invalid = Buffer.from(ciiInvoice.toString("utf8").replace("100.00", "90.00"))
const parsed = parseElectronicInvoice(invalid, "cii")
assert.match(parsed.validation.errors.join(" "), /Positionssumme/)
})