KI-AGENT: E-Rechnungen in der Belegvorbereitung verarbeiten

This commit is contained in:
2026-07-21 20:20:34 +02:00
parent 6c613857fa
commit 5e7a1f9aee
14 changed files with 708 additions and 79 deletions

View File

@@ -3,6 +3,11 @@ import dayjs from "dayjs"
import { getInvoiceDataFromGPT } from "../../utils/gpt"
import { loadFileBuffer } from "../../utils/fileBuffer"
import { detectElectronicInvoice } from "../einvoice/detectElectronicInvoice"
import { parseElectronicInvoice } from "../einvoice/parseElectronicInvoice"
import {
findElectronicInvoiceVendor,
mapElectronicInvoiceToIncomingInvoice,
} from "../einvoice/mapElectronicInvoice"
// Drizzle schema
import {
@@ -26,6 +31,61 @@ const formatInvoiceItemDescription = (item: any) => {
return parts.join(" - ")
}
const mapGptDataToIncomingInvoice = (data: any, tenantId: number) => {
const itemInfo: any = {
tenant: tenantId,
state: "Vorbereitet",
preparationSource: "gpt",
}
if (data.invoice_number) itemInfo.reference = data.invoice_number
if (data.invoice_date && dayjs(data.invoice_date).isValid()) itemInfo.date = dayjs(data.invoice_date).toISOString()
if (data.issuer?.id) itemInfo.vendor = data.issuer.id
if (data.invoice_duedate && dayjs(data.invoice_duedate).isValid()) itemInfo.dueDate = dayjs(data.invoice_duedate).toISOString()
const mapPayment: Record<string, string> = {
"Direct Debit": "Einzug",
"Transfer": "Überweisung",
"Credit Card": "Kreditkarte",
"Other": "Sonstiges",
}
if (data.terms) itemInfo.paymentType = mapPayment[data.terms] ?? data.terms
if (data.invoice_items?.length > 0) {
itemInfo.accounts = data.invoice_items
.filter((item: any) => item.description || item.total !== null || item.total_without_tax !== null)
.map((item: any) => {
const total = typeof item.total === "number" ? item.total : null
const totalWithoutTax = typeof item.total_without_tax === "number" ? item.total_without_tax : null
const amountTax = total !== null && totalWithoutTax !== null
? Number((total - totalWithoutTax).toFixed(2))
: null
return {
account: item.account_id,
description: item.description,
amountNet: totalWithoutTax,
amountTax,
taxType: item.tax_rate !== null ? String(item.tax_rate) : null,
amountGross: total,
costCentre: null,
quantity: item.quantity,
}
})
}
let description = ""
if (data.delivery_note_number) description += `Lieferschein: ${data.delivery_note_number}\n`
if (data.reference) description += `Referenz: ${data.reference}\n`
for (const item of data.invoice_items || []) {
const line = formatInvoiceItemDescription(item)
if (line) description += `${line}\n`
}
itemInfo.description = description.trim()
return itemInfo
}
export function prepareIncomingInvoices(server: FastifyInstance) {
const processInvoices = async (tenantId:number) => {
console.log("▶ Starting Incoming Invoice Preparation")
@@ -87,7 +147,7 @@ export function prepareIncomingInvoices(server: FastifyInstance) {
}
// -------------------------------------------------------------
// 3Jede Datei einzeln durch GPT jagen & IncomingInvoice erzeugen
// 3Strukturierte E-Rechnung bevorzugen, GPT als PDF-Fallback verwenden
// -------------------------------------------------------------
for (const file of filesRes) {
console.log(`Processing file ${file.id} for tenant ${tenantId}`)
@@ -103,6 +163,8 @@ export function prepareIncomingInvoices(server: FastifyInstance) {
const electronicInvoice = await detectElectronicInvoice(fileData, file)
let itemInfo: any = null
if (electronicInvoice) {
server.log.info({
fileId: file.id,
@@ -111,77 +173,34 @@ export function prepareIncomingInvoices(server: FastifyInstance) {
attachmentName: electronicInvoice.attachmentName,
}, "Strukturierte E-Rechnung erkannt.")
if (electronicInvoice.container === "xml") {
server.log.warn({ fileId: file.id }, "Die Auswertung eigenständiger E-Rechnungs-XML folgt in Etappe 2.")
try {
const parsedInvoice = parseElectronicInvoice(electronicInvoice.xml, electronicInvoice.syntax)
const vendor = await findElectronicInvoiceVendor(server, tenantId, parsedInvoice)
itemInfo = mapElectronicInvoiceToIncomingInvoice(
parsedInvoice,
tenantId,
vendor?.id || null,
electronicInvoice.container,
electronicInvoice.attachmentName,
)
} catch (error) {
server.log.error(error, `E-Rechnung aus Datei ${file.id} konnte nicht verarbeitet werden.`)
if (electronicInvoice.container === "xml") continue
}
}
if (!itemInfo) {
const data = await getInvoiceDataFromGPT(server, file, tenantId, fileData)
if (!data) {
server.log.warn(`GPT returned no data for file ${file.id}`)
continue
}
itemInfo = mapGptDataToIncomingInvoice(data, tenantId)
}
const data = await getInvoiceDataFromGPT(server, file, tenantId, fileData)
if (!data) {
server.log.warn(`GPT returned no data for file ${file.id}`)
continue
}
// ---------------------------------------------------------
// 3.1 IncomingInvoice-Objekt vorbereiten
// ---------------------------------------------------------
let itemInfo: any = {
tenant: tenantId,
state: "Vorbereitet"
}
if (data.invoice_number) itemInfo.reference = data.invoice_number
if (data.invoice_date && dayjs(data.invoice_date).isValid()) itemInfo.date = dayjs(data.invoice_date).toISOString()
if (data.issuer?.id) itemInfo.vendor = data.issuer.id
if (data.invoice_duedate && dayjs(data.invoice_duedate).isValid()) itemInfo.dueDate = dayjs(data.invoice_duedate).toISOString()
// Payment terms mapping
const mapPayment: any = {
"Direct Debit": "Einzug",
"Transfer": "Überweisung",
"Credit Card": "Kreditkarte",
"Other": "Sonstiges",
}
if (data.terms) itemInfo.paymentType = mapPayment[data.terms] ?? data.terms
// 3.2 Positionszeilen konvertieren
if (data.invoice_items?.length > 0) {
itemInfo.accounts = data.invoice_items
.filter(item => item.description || item.total !== null || item.total_without_tax !== null)
.map(item => {
const total = typeof item.total === "number" ? item.total : null
const totalWithoutTax = typeof item.total_without_tax === "number" ? item.total_without_tax : null
const amountTax = total !== null && totalWithoutTax !== null
? Number((total - totalWithoutTax).toFixed(2))
: null
return {
account: item.account_id,
description: item.description,
amountNet: totalWithoutTax,
amountTax,
taxType: item.tax_rate !== null ? String(item.tax_rate) : null,
amountGross: total,
costCentre: null,
quantity: item.quantity,
}
})
}
// 3.3 Beschreibung generieren
let description = ""
if (data.delivery_note_number) description += `Lieferschein: ${data.delivery_note_number}\n`
if (data.reference) description += `Referenz: ${data.reference}\n`
if (data.invoice_items) {
for (const item of data.invoice_items) {
const line = formatInvoiceItemDescription(item)
if (line) description += `${line}\n`
}
}
itemInfo.description = description.trim()
// ---------------------------------------------------------
// 4⃣ IncomingInvoice erstellen
// ---------------------------------------------------------