Files
FEDEO/backend/src/modules/cron/prepareIncomingInvoices.ts
florianfederspiel f814689ddd fix(accounting): Belegvorbereitung im Hintergrund ausführen und Dubletten verhindern
- „Belege vorbereiten“ startet den Lauf im Hintergrund (202) und fragt den Status ab; ein laufender Vorgang wird nicht erneut gestartet und beim Wiederöffnen der Seite weiterverfolgt
- Eingangsbeleg und Dateiverknüpfung werden in einer Transaktion angelegt; ist die Datei bereits verknüpft, wird der neue Beleg verworfen
- Fehler einzelner Dateien brechen den Lauf nicht mehr ab

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-27 20:38:45 +01:00

323 lines
13 KiB
TypeScript
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import { FastifyInstance } from "fastify"
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 {
tenants,
files,
filetags,
incominginvoices,
} from "../../../db/schema"
import { eq, and, inArray, isNull, not } from "drizzle-orm"
const formatInvoiceItemDescription = (item: any) => {
const parts = [
typeof item.description === "string" ? item.description.trim() : "",
item.quantity !== null && item.quantity !== undefined
? [item.quantity, item.unit].filter(Boolean).join(" ")
: (typeof item.unit === "string" ? item.unit.trim() : ""),
typeof item.total === "number" ? `${item.total.toFixed(2)} EUR` : "",
].filter(Boolean)
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 type IncomingInvoicePreparationResult = {
filesFound: number
created: Array<{ fileId: string, invoiceId: number, source: string | null }>
skipped: Array<{ fileId: string, reason: string }>
error?: string
}
export type IncomingInvoicePreparationStatus = {
running: boolean
startedAt: string | null
finishedAt: string | null
result: IncomingInvoicePreparationResult | null
}
class FileAlreadyPreparedError extends Error {}
export function prepareIncomingInvoices(server: FastifyInstance) {
const processInvoices = async (tenantId:number, fileIds?: string[]) => {
const result: IncomingInvoicePreparationResult = { filesFound: 0, created: [], skipped: [] }
console.log("▶ Starting Incoming Invoice Preparation")
const tenantsRes = await server.db
.select()
.from(tenants)
.where(eq(tenants.id, tenantId))
.orderBy(tenants.id)
if (!tenantsRes.length) {
console.log("No tenants with autoPrepareIncomingInvoices = true")
return { ...result, error: "Mandant nicht gefunden" }
}
console.log(`Processing tenants: ${tenantsRes.map(t => t.id).join(", ")}`)
// -------------------------------------------------------------
// 2️⃣ Jeden Tenant einzeln verarbeiten
// -------------------------------------------------------------
for (const tenant of tenantsRes) {
const tenantId = tenant.id
// 2.1 Datei-Tags holen für incoming invoices
const tagRes = await server.db
.select()
.from(filetags)
.where(
and(
eq(filetags.tenant, tenantId),
eq(filetags.incomingDocumentType, "invoices")
)
)
.limit(1)
const invoiceFileTag = tagRes?.[0]?.id
if (!invoiceFileTag) {
server.log.error(`❌ Missing filetag 'invoices' for tenant ${tenantId}`)
result.error = "Dateityp für Eingangsrechnungen fehlt"
continue
}
// 2.2 Alle Dateien laden, die als Invoice markiert sind aber NOCH keine incominginvoice haben
const filesRes = await server.db
.select()
.from(files)
.where(
and(
eq(files.tenant, tenantId),
eq(files.type, invoiceFileTag),
isNull(files.incominginvoice),
eq(files.archived, false),
not(isNull(files.path)),
...(fileIds ? [inArray(files.id, fileIds)] : [])
)
)
result.filesFound += filesRes.length
if (!filesRes.length) {
console.log(`No invoice files for tenant ${tenantId}`)
continue
}
// -------------------------------------------------------------
// 3️⃣ Strukturierte E-Rechnung bevorzugen, GPT als PDF-Fallback verwenden
// -------------------------------------------------------------
for (const file of filesRes) {
try {
await processFile(tenantId, file, result)
} catch (error) {
if (error instanceof FileAlreadyPreparedError) {
result.skipped.push({ fileId: file.id, reason: "Datei wurde bereits vorbereitet" })
continue
}
server.log.error(error, `Datei ${file.id} konnte nicht vorbereitet werden.`)
result.skipped.push({ fileId: file.id, reason: "Eingangsbeleg konnte nicht angelegt werden" })
}
}
}
return result
}
const processFile = async (tenantId: number, file: typeof files.$inferSelect, result: IncomingInvoicePreparationResult) => {
console.log(`Processing file ${file.id} for tenant ${tenantId}`)
let fileData: Buffer
try {
fileData = await loadFileBuffer(file.path!)
} catch (error) {
server.log.error(error, `Datei ${file.id} konnte nicht aus S3 geladen werden.`)
result.skipped.push({ fileId: file.id, reason: "Datei konnte nicht geladen werden" })
return
}
const electronicInvoice = await detectElectronicInvoice(fileData, file)
let itemInfo: any = null
if (electronicInvoice) {
server.log.info({
fileId: file.id,
container: electronicInvoice.container,
syntax: electronicInvoice.syntax,
attachmentName: electronicInvoice.attachmentName,
}, "Strukturierte E-Rechnung erkannt.")
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") {
result.skipped.push({ fileId: file.id, reason: "E-Rechnung konnte nicht verarbeitet werden" })
return
}
}
}
if (!itemInfo) {
const data = await getInvoiceDataFromGPT(server, file, tenantId, fileData)
if (!data) {
server.log.warn(`GPT returned no data for file ${file.id}`)
result.skipped.push({ fileId: file.id, reason: "Keine Belegdaten erkannt" })
return
}
itemInfo = mapGptDataToIncomingInvoice(data, tenantId)
}
// ---------------------------------------------------------
// 4️⃣ IncomingInvoice anlegen und Datei atomar verknüpfen.
// Die Verknüpfung greift nur, solange die Datei noch frei ist;
// sonst wird der Beleg verworfen, damit keine Dubletten entstehen.
// ---------------------------------------------------------
const newInvoice = await server.db.transaction(async (tx) => {
const [invoice] = await tx
.insert(incominginvoices)
.values(itemInfo)
.returning()
if (!invoice) throw new Error("Eingangsbeleg konnte nicht angelegt werden")
const linked = await tx
.update(files)
.set({ incominginvoice: invoice.id })
.where(and(eq(files.id, file.id), isNull(files.incominginvoice)))
.returning({ id: files.id })
if (!linked.length) throw new FileAlreadyPreparedError()
return invoice
})
result.created.push({ fileId: file.id, invoiceId: newInvoice.id, source: newInvoice.preparationSource ?? null })
console.log(`IncomingInvoice ${newInvoice.id} created for file ${file.id}`)
}
// Serialize runs per tenant so concurrent triggers cannot prepare the same file twice.
const running = new Map<number, Promise<unknown>>()
const backgroundRuns = new Map<number, IncomingInvoicePreparationStatus>()
const run = async (tenant:number, options: { fileIds?: string[] } = {}) => {
const previous = running.get(tenant) || Promise.resolve()
const current = previous.catch(() => undefined).then(() => processInvoices(tenant, options.fileIds))
running.set(tenant, current)
try {
const result = await current
console.log("Incoming Invoice Preparation Completed.")
return result
} finally {
if (running.get(tenant) === current) running.delete(tenant)
}
}
const status = (tenant: number): IncomingInvoicePreparationStatus =>
backgroundRuns.get(tenant) || { running: false, startedAt: null, finishedAt: null, result: null }
// Startet die Vorbereitung losgelöst von der Anfrage; ein laufender Vorgang wird nicht erneut gestartet.
const start = (tenant: number): IncomingInvoicePreparationStatus => {
const current = status(tenant)
if (current.running) return current
const next: IncomingInvoicePreparationStatus = { running: true, startedAt: new Date().toISOString(), finishedAt: null, result: null }
backgroundRuns.set(tenant, next)
run(tenant)
.then((result) => {
backgroundRuns.set(tenant, { ...next, running: false, finishedAt: new Date().toISOString(), result })
})
.catch((error) => {
server.log.error(error, `Belegvorbereitung für Mandant ${tenant} fehlgeschlagen.`)
backgroundRuns.set(tenant, {
...next,
running: false,
finishedAt: new Date().toISOString(),
result: { filesFound: 0, created: [], skipped: [], error: "Belegvorbereitung fehlgeschlagen" },
})
})
return next
}
return { run, start, status }
}