Entferne app.py aus dem Repository
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dfuhrmann3
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commit
057afe3ee8
358
app.py
358
app.py
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import os
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import streamlit as st
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import json
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import re
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import xml.etree.ElementTree as ET
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from xml.dom import minidom
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from datetime import datetime, timedelta
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from decimal import Decimal, ROUND_HALF_UP
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import fitz
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from pydantic import BaseModel, Field
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from llama_cpp import Llama, LlamaGrammar
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# ==========================================
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# 1. METADATEN SCHREIBSCHEMA
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# ==========================================
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class InvoiceMetadata(BaseModel):
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invoice_number: str = Field(description="Die Rechnungsnummer nach 'Nummer:' (z.B. R26-219)")
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invoice_date: str = Field(description="Das Rechnungsdatum nach 'Datum:' im Format YYYY-MM-DD")
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delivery_date: str = Field(description="Das Lieferdatum nach 'Lieferdatum:' im Format YYYY-MM-DD")
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buyer_reference: str = Field(description="Der exakte Wert nach 'Ihr Auftrag:' (z.B. 05.06.2026-Herr.Knospe)")
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recipient_name: str = Field(description="Vollständige Firma des Kunden/Empfängers (z.B. Stadtwerke Hennigsdorf GmbH)")
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recipient_street: str = Field(description="Straße und Hausnummer des Kunden")
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recipient_zip: str = Field(description="Postleitzahl (PLZ) des Kunden")
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recipient_city: str = Field(description="Stadt des Kunden")
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recipient_email: str = Field(description="E-Mail-Adresse des Kunden (LEER lassen, wenn nicht explizit im Text!)")
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vat_rate_percent: float = Field(description="Der primäre Umsatzsteuersatz in Prozent (z.B. 19.0)")
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# ==========================================
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# 2. MATHEMATISCHE FUNKTIONEN
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# ==========================================
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def kaufmaennisches_runden(betrag, nachkommastellen=2):
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"""
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Rundet Beträge finanzmathematisch exakt nach kaufmännischer Art (ab 5 aufrunden).
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Verhindert Pythons Banker's Rounding Fehler.
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"""
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if not betrag:
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return 0.0
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quantizer = Decimal('1.' + '0' * nachkommastellen)
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return float(Decimal(f"{betrag:.6f}").quantize(quantizer, rounding=ROUND_HALF_UP))
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def clean_german_float(val_str):
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if not val_str:
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return 0.0
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s = str(val_str).strip().replace("€", "").replace(" ", "").replace("'", "").replace("\n", "").replace("\r", "")
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if not s:
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return 0.0
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if "." in s and "," in s:
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s = s.replace(".", "").replace(",", ".")
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elif "," in s:
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s = s.replace(",", ".")
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try:
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return float(s)
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except ValueError:
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return 0.0
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def extract_invoice_items_pure_python(text):
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items = []
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lines = [line.strip() for line in text.split("\n") if line.strip()]
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unit_pattern = re.compile(r"^(\d+(?:[\.,]\d+)?)\s*(Tag\(e\)|Std\.|Stk\.|Stunden|Stück|stk|stck|stück)$", re.IGNORECASE)
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price_stop_pattern = re.compile(r"^[\d\.]+,[\d]{2}$")
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for i, line in enumerate(lines):
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match = unit_pattern.match(line)
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if match:
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raw_qty = match.group(1)
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raw_unit = match.group(2)
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raw_price = "0,00"
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for k in range(1, 3):
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if i + k < len(lines):
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candidate = lines[i+k].replace("€", "").replace(" ", "").strip()
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if re.match(r"^[\d.,]+$", candidate):
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raw_price = candidate
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break
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desc_lines = []
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for j in range(i - 1, -1, -1):
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prev_line = lines[j]
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if unit_pattern.match(prev_line) or price_stop_pattern.match(prev_line):
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break
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prev_lower = prev_line.lower()
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if prev_lower in ["pos.", "pos", "bezeichnung", "beschreibung", "menge", "einheit", "einzelpreis", "gesamtpreis", "betrag €", "betrag", "artikel"]:
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break
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if any(prev_lower.startswith(w) for w in ["zwischensumme", "endbetrag", "gesamtbetrag", "umsatzsteuer"]):
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break
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if prev_line.isdigit() and len(prev_line) <= 2:
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continue
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desc_lines.insert(0, prev_line)
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description = " ".join(desc_lines).strip()
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if description:
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items.append({
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"description": description,
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"quantity": clean_german_float(raw_qty),
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"unit": raw_unit,
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"unit_price": clean_german_float(raw_price)
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})
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return items
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def map_unece_unit_code(unit_str):
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u = str(unit_str).lower()
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if "tag" in u or "day" in u: return "DAY"
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elif "std" in u or "stund" in u or "hour" in u or "hur" in u: return "HUR"
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return "C62"
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def parse_to_strict_xml_date(date_str):
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clean_str = str(date_str).strip()
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for fmt in ("%Y-%m-%d", "%d.%m.%Y", "%d-%m-%Y"):
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try: return datetime.strptime(clean_str, fmt).strftime("%Y-%m-%d")
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except ValueError: continue
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return datetime.today().strftime("%Y-%m-%d")
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def generate_compliant_xrechnung(data):
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INVOICE_NS = "urn:oasis:names:specification:ubl:schema:xsd:Invoice-2"
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CBC = "urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2"
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CAC = "urn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2"
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ET.register_namespace('', INVOICE_NS)
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ET.register_namespace('cbc', CBC)
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ET.register_namespace('cac', CAC)
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root = ET.Element(f"{{{INVOICE_NS}}}Invoice")
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ET.SubElement(root, f"{{{CBC}}}CustomizationID").text = "urn:cen.eu:en16931:2017#compliant#urn:xoev-de:kosit:standard:xrechnung_3.0"
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ET.SubElement(root, f"{{{CBC}}}ProfileID").text = "urn:fdc:peppol.eu:poacc:bis:invoice:3"
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ET.SubElement(root, f"{{{CBC}}}ID").text = str(data["invoice_number"])
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ET.SubElement(root, f"{{{CBC}}}IssueDate").text = parse_to_strict_xml_date(data["invoice_date"])
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try:
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base_date = datetime.strptime(parse_to_strict_xml_date(data["invoice_date"]), "%Y-%m-%d")
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computed_due = (base_date + timedelta(days=14)).strftime("%Y-%m-%d")
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except Exception:
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computed_due = (datetime.today() + timedelta(days=14)).strftime("%Y-%m-%d")
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ET.SubElement(root, f"{{{CBC}}}DueDate").text = computed_due
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ET.SubElement(root, f"{{{CBC}}}InvoiceTypeCode").text = "380"
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ET.SubElement(root, f"{{{CBC}}}DocumentCurrencyCode").text = "EUR"
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ET.SubElement(root, f"{{{CBC}}}BuyerReference").text = str(data["buyer_reference"])
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vat_rate = float(data['vat_rate_percent'])
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vat_category = "S" if vat_rate > 0.0 else "E"
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# --- SENDER (SCITECH) ---
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supplier = ET.SubElement(root, f"{{{CAC}}}AccountingSupplierParty")
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party_supp = ET.SubElement(supplier, f"{{{CAC}}}Party")
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ET.SubElement(party_supp, f"{{{CBC}}}EndpointID", {"schemeID": "EM"}).text = "office@scitech-gmbh.de"
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party_name_supp = ET.SubElement(party_supp, f"{{{CAC}}}PartyName")
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ET.SubElement(party_name_supp, f"{{{CBC}}}Name").text = "scitech it solutions GmbH"
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addr_supp = ET.SubElement(party_supp, f"{{{CAC}}}PostalAddress")
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ET.SubElement(addr_supp, f"{{{CBC}}}StreetName").text = "Hermann-Schumann-Str. 4"
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ET.SubElement(addr_supp, f"{{{CBC}}}CityName").text = "Hennigsdorf"
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ET.SubElement(addr_supp, f"{{{CBC}}}PostalZone").text = "16761"
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country_supp = ET.SubElement(addr_supp, f"{{{CAC}}}Country")
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ET.SubElement(country_supp, f"{{{CBC}}}IdentificationCode").text = "DE"
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tax_scheme_supp = ET.SubElement(party_supp, f"{{{CAC}}}PartyTaxScheme")
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ET.SubElement(tax_scheme_supp, f"{{{CBC}}}CompanyID").text = "DE218436692"
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scheme_supp = ET.SubElement(tax_scheme_supp, f"{{{CAC}}}TaxScheme")
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ET.SubElement(scheme_supp, f"{{{CBC}}}ID").text = "VAT"
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legal_supp = ET.SubElement(party_supp, f"{{{CAC}}}PartyLegalEntity")
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ET.SubElement(legal_supp, f"{{{CBC}}}RegistrationName").text = "scitech it solutions GmbH"
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contact_supp = ET.SubElement(party_supp, f"{{{CAC}}}Contact")
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ET.SubElement(contact_supp, f"{{{CBC}}}Name").text = "Geschäftsführung"
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ET.SubElement(contact_supp, f"{{{CBC}}}Telephone").text = "+49 3302 4940537"
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ET.SubElement(contact_supp, f"{{{CBC}}}ElectronicMail").text = "office@scitech-gmbh.de"
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# --- RECIPIENT ---
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customer = ET.SubElement(root, f"{{{CAC}}}AccountingCustomerParty")
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party_cust = ET.SubElement(customer, f"{{{CAC}}}Party")
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ET.SubElement(party_cust, f"{{{CBC}}}EndpointID", {"schemeID": "EM"}).text = str(data["recipient_email"]) if data.get("recipient_email") else "rechnung@kunde.de"
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party_name_cust = ET.SubElement(party_cust, f"{{{CAC}}}PartyName")
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ET.SubElement(party_name_cust, f"{{{CBC}}}Name").text = str(data["recipient_name"])
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addr_cust = ET.SubElement(party_cust, f"{{{CAC}}}PostalAddress")
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ET.SubElement(addr_cust, f"{{{CBC}}}StreetName").text = str(data["recipient_street"])
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ET.SubElement(addr_cust, f"{{{CBC}}}CityName").text = str(data["recipient_city"])
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ET.SubElement(addr_cust, f"{{{CBC}}}PostalZone").text = str(data["recipient_zip"])
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country_cust = ET.SubElement(addr_cust, f"{{{CAC}}}Country")
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ET.SubElement(country_cust, f"{{{CBC}}}IdentificationCode").text = "DE"
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legal_cust = ET.SubElement(party_cust, f"{{{CAC}}}PartyLegalEntity")
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ET.SubElement(legal_cust, f"{{{CBC}}}RegistrationName").text = str(data["recipient_name"])
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if data.get("delivery_date"):
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delivery = ET.SubElement(root, f"{{{CAC}}}Delivery")
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ET.SubElement(delivery, f"{{{CBC}}}ActualDeliveryDate").text = parse_to_strict_xml_date(data["delivery_date"])
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payment_means = ET.SubElement(root, f"{{{CAC}}}PaymentMeans")
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ET.SubElement(payment_means, f"{{{CBC}}}PaymentMeansCode").text = "30"
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payee_acc = ET.SubElement(payment_means, f"{{{CAC}}}PayeeFinancialAccount")
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ET.SubElement(payee_acc, f"{{{CBC}}}ID").text = str(data["iban"]).replace(" ", "")
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tax_total = ET.SubElement(root, f"{{{CAC}}}TaxTotal")
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ET.SubElement(tax_total, f"{{{CBC}}}TaxAmount", {"currencyID": "EUR"}).text = f"{data['total_vat_amount']:.2f}"
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tax_subtotal = ET.SubElement(tax_total, f"{{{CAC}}}TaxSubtotal")
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ET.SubElement(tax_subtotal, f"{{{CBC}}}TaxableAmount", {"currencyID": "EUR"}).text = f"{data['total_net_amount']:.2f}"
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ET.SubElement(tax_subtotal, f"{{{CBC}}}TaxAmount", {"currencyID": "EUR"}).text = f"{data['total_vat_amount']:.2f}"
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tax_cat = ET.SubElement(tax_subtotal, f"{{{CAC}}}TaxCategory")
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ET.SubElement(tax_cat, f"{{{CBC}}}ID").text = vat_category
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ET.SubElement(tax_cat, f"{{{CBC}}}Percent").text = f"{vat_rate:.2f}"
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tax_scheme = ET.SubElement(tax_cat, f"{{{CAC}}}TaxScheme")
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ET.SubElement(tax_scheme, f"{{{CBC}}}ID").text = "VAT"
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monetary_total = ET.SubElement(root, f"{{{CAC}}}LegalMonetaryTotal")
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ET.SubElement(monetary_total, f"{{{CBC}}}LineExtensionAmount", {"currencyID": "EUR"}).text = f"{data['total_net_amount']:.2f}"
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ET.SubElement(monetary_total, f"{{{CBC}}}TaxExclusiveAmount", {"currencyID": "EUR"}).text = f"{data['total_net_amount']:.2f}"
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ET.SubElement(monetary_total, f"{{{CBC}}}TaxInclusiveAmount", {"currencyID": "EUR"}).text = f"{data['total_gross_amount']:.2f}"
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ET.SubElement(monetary_total, f"{{{CBC}}}PayableAmount", {"currencyID": "EUR"}).text = f"{data['total_gross_amount']:.2f}"
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for index, item in enumerate(data["items"], start=1):
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line = ET.SubElement(root, f"{{{CAC}}}InvoiceLine")
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ET.SubElement(line, f"{{{CBC}}}ID").text = str(index)
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u_code = map_unece_unit_code(item.get("unit", "C62"))
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q_val = float(item.get("quantity") or 0.0)
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qty_formatted = f"{q_val:.4f}".rstrip('0').rstrip('.') if not q_val.is_integer() else f"{q_val:.2f}"
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if qty_formatted == "" or qty_formatted == "0": qty_formatted = "0.00"
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ET.SubElement(line, f"{{{CBC}}}InvoicedQuantity", {"unitCode": u_code}).text = qty_formatted
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ET.SubElement(line, f"{{{CBC}}}LineExtensionAmount", {"currencyID": "EUR"}).text = f"{item['total_amount']:.2f}"
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item_elem = ET.SubElement(line, f"{{{CAC}}}Item")
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ET.SubElement(item_elem, f"{{{CBC}}}Name").text = str(item["description"])
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item_tax = ET.SubElement(item_elem, f"{{{CAC}}}ClassifiedTaxCategory")
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ET.SubElement(item_tax, f"{{{CBC}}}ID").text = vat_category
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ET.SubElement(item_tax, f"{{{CBC}}}Percent").text = f"{vat_rate:.2f}"
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item_scheme = ET.SubElement(item_tax, f"{{{CAC}}}TaxScheme")
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ET.SubElement(item_scheme, f"{{{CBC}}}ID").text = "VAT"
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price_elem = ET.SubElement(line, f"{{{CAC}}}Price")
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ET.SubElement(price_elem, f"{{{CBC}}}PriceAmount", {"currencyID": "EUR"}).text = f"{item['unit_price']:.2f}"
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xml_str = ET.tostring(root, encoding="utf-8")
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return minidom.parseString(xml_str).toprettyxml(indent=" ")
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# ==========================================
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# 3. KI MODELL (QWEN 3.5 INSTRUCT)
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# ==========================================
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def get_cached_llm():
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if "llm_instance" not in st.session_state:
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with st.spinner("🚀 INITIAL: Stammdaten-Modell wird geladen..."):
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base_dir = os.path.dirname(os.path.abspath(__file__))
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model_path = os.path.join(base_dir, "models", "Qwen3.5-4B-Instruct-Q8_0.gguf")
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st.session_state.llm_instance = Llama(model_path=model_path, n_ctx=2048, n_gpu_layers=-1, n_threads=8)
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return st.session_state.llm_instance
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# ==========================================
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# 4. STREAMLIT FRONTEND
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# ==========================================
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st.set_page_config(page_title="PDF zu E-Rechnung", layout="wide")
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st.title("📄 Enterprise PDF zu E-Rechnung Konverter")
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llm = get_cached_llm()
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col1, col2 = st.columns(2)
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with col1:
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st.subheader("1. Dokument hochladen")
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uploaded_file = st.file_uploader("Wähle eine Rechnungs-PDF", type=["pdf"])
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pdf_text = ""
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if uploaded_file is not None:
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doc = fitz.open(stream=uploaded_file.read(), filetype="pdf")
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for page in doc:
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pdf_text += page.get_text("text") + "\n"
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st.success("PDF eingelesen!")
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with st.expander("Gefundener Text"): st.text(pdf_text)
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with col2:
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st.subheader("2. Strukturierte Daten validieren")
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if "extracted_data" not in st.session_state: st.session_state.extracted_data = None
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if uploaded_file is not None and pdf_text.strip() != "":
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if st.button("🚀 Daten extrahieren (Kugelsichere Hybrid-Methode)", width="stretch"):
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with st.spinner("Extrahiere Daten..."):
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||||||
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||||||
# STUFE 1: Stammdaten via KI
|
|
||||||
grammar_meta = LlamaGrammar.from_json_schema(json.dumps(InvoiceMetadata.model_json_schema()))
|
|
||||||
prompt_meta = f"""Du bist ein OCR-Parser für deutsche B2B-Rechnungen. Extrahiere die Metadaten fehlerfrei.
|
|
||||||
GIB DAS JSON REIN ALS EINZEILER AUS. KEINE ZEILENUMBRÜCHE!
|
|
||||||
Rechnungstext:\n{pdf_text}"""
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|
||||||
|
|
||||||
res_meta = llm(prompt=prompt_meta, max_tokens=512, grammar=grammar_meta, temperature=0.0)
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|
||||||
final_data = json.loads(res_meta["choices"][0]["text"])
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|
||||||
|
|
||||||
if final_data.get("recipient_email") == "office@scitech-gmbh.de":
|
|
||||||
final_data["recipient_email"] = ""
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|
||||||
|
|
||||||
# STUFE 2: Zeilenbasiertes Python-Parsing für die Tabelle
|
|
||||||
final_data["items"] = extract_invoice_items_pure_python(pdf_text)
|
|
||||||
st.session_state.extracted_data = final_data
|
|
||||||
|
|
||||||
if st.session_state.extracted_data:
|
|
||||||
data = st.session_state.extracted_data
|
|
||||||
inv_num = st.text_input("Rechnungsnummer", value=data.get("invoice_number", ""))
|
|
||||||
inv_date = st.text_input("Rechnungsdatum (YYYY-MM-DD)", value=data.get("invoice_date", ""))
|
|
||||||
inv_delivery = st.text_input("Lieferdatum (YYYY-MM-DD)", value=data.get("delivery_date", ""))
|
|
||||||
buyer_ref = st.text_input("Ihr Auftrag / Referenz", value=data.get("buyer_reference", ""))
|
|
||||||
|
|
||||||
c_s, c_r = st.columns(2)
|
|
||||||
with c_s:
|
|
||||||
st.markdown("**Absender (Verkäufer - Fest hinterlegt):**")
|
|
||||||
st.text_input("Firma (Sender)", value="scitech it solutions GmbH", disabled=True)
|
|
||||||
st.text_input("E-Mail (Sender)", value="office@scitech-gmbh.de", disabled=True)
|
|
||||||
st.text_input("Telefon (Sender)", value="+49 3302 4940537", disabled=True)
|
|
||||||
st.text_input("Straße (Sender)", value="Hermann-Schumann-Str. 4", disabled=True)
|
|
||||||
st.text_input("PLZ (Sender)", value="16761", disabled=True)
|
|
||||||
st.text_input("Stadt (Sender)", value="Hennigsdorf", disabled=True)
|
|
||||||
with c_r:
|
|
||||||
st.markdown("**Empfänger (Kunde):**")
|
|
||||||
r_name = st.text_input("Firma (Kunde)", value=data.get("recipient_name", ""))
|
|
||||||
r_email = st.text_input("E-Mail (Kunde)", value=data.get("recipient_email", ""))
|
|
||||||
r_street = st.text_input("Straße (Kunde)", value=data.get("recipient_street", ""))
|
|
||||||
r_zip = st.text_input("PLZ (Kunde)", value=data.get("recipient_zip", ""))
|
|
||||||
r_city = st.text_input("Stadt (Kunde)", value=data.get("recipient_city", ""))
|
|
||||||
|
|
||||||
st.markdown("**3. Positionen:**")
|
|
||||||
edited_items = st.data_editor(data.get("items", []), num_rows="dynamic", width="stretch")
|
|
||||||
vat_rate = st.number_input("Steuersatz (%)", value=float(data.get("vat_rate_percent") or 19.0))
|
|
||||||
|
|
||||||
# Berechnung inklusive kaufmännischem Runden auf Positionsebene
|
|
||||||
for item in edited_items:
|
|
||||||
raw_total = float(item.get("quantity") or 0.0) * float(item.get("unit_price") or 0.0)
|
|
||||||
item["total_amount"] = kaufmaennisches_runden(raw_total)
|
|
||||||
|
|
||||||
computed_net_amount = sum(item["total_amount"] for item in edited_items)
|
|
||||||
|
|
||||||
# Kaufmännisches Runden für die Umsatzsteuer
|
|
||||||
raw_vat_amount = computed_net_amount * (vat_rate / 100.0)
|
|
||||||
computed_vat_amount = kaufmaennisches_runden(raw_vat_amount)
|
|
||||||
|
|
||||||
# Brutto aus den gerundeten Netto- und MwSt-Werten
|
|
||||||
computed_gross_amount = kaufmaennisches_runden(computed_net_amount + computed_vat_amount)
|
|
||||||
|
|
||||||
st.markdown("**Berechnete Summen:**")
|
|
||||||
c_net_ui, c_vat_ui, c_gross_ui = st.columns(3)
|
|
||||||
with c_net_ui: st.metric("Netto-Gesamt (€)", f"{computed_net_amount:.2f}")
|
|
||||||
with c_vat_ui: st.metric("MwSt-Gesamt (€)", f"{computed_vat_amount:.2f}")
|
|
||||||
with c_gross_ui: st.metric("Brutto-Zahlbetrag (€)", f"{computed_gross_amount:.2f}")
|
|
||||||
|
|
||||||
st.markdown("---")
|
|
||||||
if st.button("🔒 XRechnung exportieren", type="primary", width="stretch"):
|
|
||||||
final_invoice_dict = {
|
|
||||||
"invoice_number": inv_num, "invoice_date": inv_date, "delivery_date": inv_delivery,
|
|
||||||
"buyer_reference": buyer_ref, "recipient_name": r_name, "recipient_email": r_email,
|
|
||||||
"recipient_street": r_street, "recipient_zip": r_zip, "recipient_city": r_city,
|
|
||||||
"items": edited_items, "total_net_amount": computed_net_amount, "total_vat_amount": computed_vat_amount,
|
|
||||||
"vat_rate_percent": vat_rate, "total_gross_amount": computed_gross_amount, "iban": "DE06120700240456207000"
|
|
||||||
}
|
|
||||||
st.download_button(label="📥 Download XML", data=generate_compliant_xrechnung(final_invoice_dict), file_name=f"XRechnung_{inv_num}.xml", mime="text/xml")
|
|
||||||
Loading…
Reference in New Issue