gateway/modules/features/trustee/accounting/accountingBridge.py
2026-04-26 18:11:42 +02:00

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# Copyright (c) 2025 Patrick Motsch
# All rights reserved.
"""Accounting bridge: standardised interface between Trustee and external accounting systems.
Encapsulates: config loading -> connector resolution -> duplicate check -> push -> sync record.
"""
import json
import logging
import time
from datetime import datetime as _dt, timezone as _tz
from typing import List, Dict, Any, Optional
from .accountingConnectorBase import (
AccountingBooking,
AccountingBookingLine,
AccountingChart,
SyncResult,
)
from .accountingRegistry import getAccountingRegistry
logger = logging.getLogger(__name__)
class AccountingBridge:
"""Routes accounting operations through the correct connector for a feature instance."""
def __init__(self, trusteeInterface):
self._trusteeInterface = trusteeInterface
self._registry = getAccountingRegistry()
async def getActiveConfig(self, featureInstanceId: str) -> Optional[Dict[str, Any]]:
"""Load the active TrusteeAccountingConfig for a feature instance."""
from modules.features.trustee.datamodelFeatureTrustee import TrusteeAccountingConfig
records = self._trusteeInterface.db.getRecordset(
TrusteeAccountingConfig,
recordFilter={"featureInstanceId": featureInstanceId, "isActive": True},
)
if not records:
return None
record = records[0]
return {k: v for k, v in record.items() if not k.startswith("_")}
def _decryptConfig(self, encryptedConfig: str) -> Dict[str, Any]:
"""Decrypt the stored connector config JSON."""
from modules.shared.configuration import decryptValue
import json
try:
if not encryptedConfig:
logger.error("Accounting config encryptedConfig is empty")
return {}
decrypted = decryptValue(encryptedConfig, keyName="accountingConfig")
result = json.loads(decrypted) if isinstance(decrypted, str) else decrypted
configKeys = list(result.keys()) if isinstance(result, dict) else []
logger.info(f"Decrypted accounting config successfully, keys: {configKeys}")
return result
except Exception as e:
logger.error(f"Failed to decrypt accounting config: {e}")
return {}
async def _resolveConnectorAndConfig(self, featureInstanceId: str):
"""Load config, decrypt, resolve connector. Returns (connector, plainConfig, accountingConfigRecord)."""
configRecord = await self.getActiveConfig(featureInstanceId)
if not configRecord:
logger.warning(f"No active accounting config for instance {featureInstanceId}")
return None, None, None
connectorType = configRecord.get("connectorType")
logger.info(f"Resolving connector '{connectorType}' for instance {featureInstanceId}")
connector = self._registry.getConnector(connectorType)
if not connector:
logger.error(f"Accounting connector '{connectorType}' not found in registry")
return None, None, configRecord
plainConfig = self._decryptConfig(configRecord.get("encryptedConfig", ""))
if not plainConfig:
logger.error(f"Decrypted config is empty for connector '{connectorType}'")
return connector, plainConfig, configRecord
def _buildBookingFromPosition(self, position: Dict[str, Any]) -> AccountingBooking:
"""Build a standardised AccountingBooking from a TrusteePosition record."""
lines = []
debitAccount = position.get("debitAccountNumber")
creditAccount = position.get("creditAccountNumber")
amount = abs(position.get("bookingAmount", 0))
if debitAccount:
lines.append(AccountingBookingLine(
accountNumber=debitAccount,
debitAmount=amount,
currency=position.get("bookingCurrency", "CHF"),
taxCode=position.get("taxCode"),
taxRate=position.get("vatPercentage"),
description=position.get("desc", ""),
costCenter=position.get("costCenter"),
reference=position.get("bookingReference"),
))
if creditAccount:
lines.append(AccountingBookingLine(
accountNumber=creditAccount,
creditAmount=amount,
currency=position.get("bookingCurrency", "CHF"),
description=position.get("desc", ""),
costCenter=position.get("costCenter"),
))
valutaTs = position.get("valuta")
bookingDateStr = _dt.fromtimestamp(valutaTs, tz=_tz.utc).strftime("%Y-%m-%d") if valutaTs else ""
return AccountingBooking(
reference=position.get("bookingReference") or position.get("id", ""),
bookingDate=bookingDateStr,
description=position.get("desc", ""),
lines=lines,
)
async def pushPositionToAccounting(
self,
featureInstanceId: str,
positionId: str,
_resolvedConnector=None,
_resolvedPlainConfig=None,
_resolvedConfigRecord=None,
) -> SyncResult:
"""Push a single position to the configured accounting system.
Optional _resolved* params allow pushBatchToAccounting to pass a pre-resolved
connector/config so we don't decrypt per position (avoids rate-limit).
"""
from modules.features.trustee.datamodelFeatureTrustee import TrusteePosition, TrusteeAccountingSync
connector = _resolvedConnector
plainConfig = _resolvedPlainConfig
configRecord = _resolvedConfigRecord
if not connector or not plainConfig:
connector, plainConfig, configRecord = await self._resolveConnectorAndConfig(featureInstanceId)
if not connector or not plainConfig:
return SyncResult(success=False, errorMessage="No active accounting configuration found")
connectorType = configRecord.get("connectorType", "")
# Load position
posRecords = self._trusteeInterface.db.getRecordset(TrusteePosition, recordFilter={"id": positionId})
if not posRecords:
return SyncResult(success=False, errorMessage=f"Position {positionId} not found")
position = posRecords[0]
# Build booking; skip if position has no accounts (not ready for sync)
booking = self._buildBookingFromPosition(position)
if not booking.lines:
logger.info("Accounting sync skipped (no accounts): positionId=%s", positionId)
return SyncResult(success=True, errorMessage="Position hat keine Kontierung (Soll-/Haben-Konto) Sync übersprungen")
# 1) First: ensure all documents are in RMA (upload or duplicate); collect Beleg-IDs for linking
documentIds = []
for key in ("documentId", "bankDocumentId"):
docId = position.get(key)
if docId:
documentIds.append(docId)
if documentIds:
from modules.features.trustee.datamodelFeatureTrustee import TrusteeDocument as TrusteeDocumentModel
logger.info("Accounting sync: positionId=%s, syncing %s document(s) to RMA ...", positionId, len(documentIds))
belegIds = []
belegLabels = []
for documentId in documentIds:
doc = self._trusteeInterface.getDocument(documentId)
if not doc:
continue
fileName = getattr(doc, "documentName", None) or "beleg.pdf"
existingBelegId = getattr(doc, "externalBelegId", None)
if existingBelegId:
logger.info("Accounting sync: document %s already has belegId=%s, skipping upload", documentId, existingBelegId)
belegIds.append(existingBelegId)
belegLabels.append(fileName)
continue
docData = self._trusteeInterface.getDocumentData(documentId)
if docData is None:
continue
mimeType = getattr(doc, "documentMimeType", None) or "application/pdf"
uploadResult = await connector.uploadDocument(
plainConfig,
fileName=fileName,
fileContent=docData,
mimeType=mimeType,
comment=booking.reference,
)
if not uploadResult.success:
errMsg = f"Dokument konnte nicht nach RMA hochgeladen werden: {uploadResult.errorMessage}"
logger.error(
"Accounting sync failed (document upload): positionId=%s, documentId=%s, error=%s",
positionId, documentId, uploadResult.errorMessage,
)
return SyncResult(success=False, errorMessage=errMsg)
belegId = uploadResult.externalId
if belegId:
self._trusteeInterface.db.recordModify(TrusteeDocumentModel, documentId, {"externalBelegId": belegId})
logger.info("Accounting sync: document uploaded & belegId=%s stored on document %s", belegId, documentId)
else:
logger.info("Accounting sync: document uploaded but no belegId in response (409 duplicate?), fileName=%s", fileName)
belegIds.append(belegId)
belegLabels.append(fileName)
if belegIds or belegLabels:
booking.externalDocumentIds = belegIds
booking.externalDocumentLabels = belegLabels
logger.info("Accounting sync: positionId=%s, document sync done, pushing GL booking (POST /gl) ...", positionId)
# Duplicate check: if locally marked as synced, verify with Buha system
accountingSyncId = position.get("accountingSyncId")
existingSyncs = self._trusteeInterface.db.getRecordset(
TrusteeAccountingSync,
recordFilter={"positionId": positionId, "connectorType": connectorType, "syncStatus": "synced"},
)
if accountingSyncId or existingSyncs:
checkResult = await connector.isBookingSynced(plainConfig, booking)
if checkResult.success:
logger.info(
"Accounting sync skipped (verified in Buha): positionId=%s, reference=%s",
positionId, booking.reference,
)
return SyncResult(success=False, errorMessage="Position already synced to this system")
# Not found in Buha (e.g. deleted there): clear local records and re-push
logger.info(
"Accounting sync: reference %s not found in Buha (deleted?), clearing local records and re-pushing positionId=%s",
booking.reference, positionId,
)
if accountingSyncId:
self._trusteeInterface.db.recordModify(TrusteePosition, positionId, {"accountingSyncId": None})
for rec in existingSyncs:
rid = rec.get("id")
if rid:
self._trusteeInterface.db.recordDelete(TrusteeAccountingSync, rid)
# 2) Then: push booking (with reference to document IDs so RMA can link)
if not documentIds:
logger.info("Accounting sync: positionId=%s, no documents, pushing GL booking (POST /gl) ...", positionId)
result = await connector.pushBooking(plainConfig, booking)
if not result.success:
logger.error(
"Accounting sync failed: positionId=%s, error=%s",
positionId,
result.errorMessage or "unknown",
)
# Save sync record
import uuid
syncRecord = {
"id": str(uuid.uuid4()),
"positionId": positionId,
"featureInstanceId": featureInstanceId,
"connectorType": connectorType,
"externalId": result.externalId,
"externalReference": result.externalReference,
"syncStatus": "synced" if result.success else "error",
"syncDirection": "push",
"syncedAt": time.time() if result.success else None,
"errorMessage": result.errorMessage,
"bookingPayload": booking.model_dump(),
"mandateId": self._trusteeInterface.mandateId,
}
self._trusteeInterface.db.recordCreate(TrusteeAccountingSync, syncRecord)
# Write back external ID to position (source of truth for sync check)
if result.success and result.externalId:
self._trusteeInterface.db.recordModify(
TrusteePosition, positionId, {"accountingSyncId": result.externalId}
)
# Update last sync on config record
if configRecord:
from modules.features.trustee.datamodelFeatureTrustee import TrusteeAccountingConfig
updatePayload = {
"lastSyncAt": time.time(),
"lastSyncStatus": "success" if result.success else "error",
}
if result.success:
updatePayload["lastSyncErrorMessage"] = None
else:
updatePayload["lastSyncErrorMessage"] = result.errorMessage or "Sync failed"
self._trusteeInterface.db.recordModify(TrusteeAccountingConfig, configRecord["id"], updatePayload)
return result
async def pushBatchToAccounting(self, featureInstanceId: str, positionIds: List[str]) -> List[SyncResult]:
"""Push multiple positions sequentially. Resolves connector/config once to avoid decrypt rate-limit."""
connector, plainConfig, configRecord = await self._resolveConnectorAndConfig(featureInstanceId)
if not connector or not plainConfig:
return [SyncResult(success=False, errorMessage="No active accounting configuration found") for _ in positionIds]
results = []
for positionId in positionIds:
result = await self.pushPositionToAccounting(
featureInstanceId, positionId,
_resolvedConnector=connector, _resolvedPlainConfig=plainConfig, _resolvedConfigRecord=configRecord,
)
results.append(result)
return results
async def refreshChartOfAccounts(self, featureInstanceId: str) -> List[AccountingChart]:
"""Fetch the full chart of accounts from the external system and cache it locally on TrusteeAccountingConfig."""
from modules.features.trustee.datamodelFeatureTrustee import TrusteeAccountingConfig
connector, plainConfig, configRecord = await self._resolveConnectorAndConfig(featureInstanceId)
if not connector or not plainConfig or not configRecord:
logger.warning("refreshChartOfAccounts: no connector/config — nothing to cache")
return []
charts = await connector.getChartOfAccounts(plainConfig)
serialised = json.dumps([{"accountNumber": c.accountNumber, "label": c.label, "accountType": c.accountType or ""} for c in charts], ensure_ascii=False)
self._trusteeInterface.db.recordModify(TrusteeAccountingConfig, configRecord["id"], {
"cachedChartOfAccounts": serialised,
"chartCachedAt": time.time(),
})
logger.info(f"Cached {len(charts)} chart-of-accounts entries for instance {featureInstanceId}")
return charts
def _readCachedCharts(self, configRecord: Dict[str, Any]) -> List[AccountingChart]:
"""Deserialise the cached chart-of-accounts JSON from a config record. Returns [] on any error."""
raw = configRecord.get("cachedChartOfAccounts")
if not raw:
return []
try:
items = json.loads(raw) if isinstance(raw, str) else raw
return [AccountingChart(accountNumber=i["accountNumber"], label=i["label"], accountType=i.get("accountType", "")) for i in items]
except Exception as e:
logger.debug("Could not deserialise cached chart: %s", e)
return []
async def getChartOfAccounts(self, featureInstanceId: str, accountType: Optional[str] = None) -> List[AccountingChart]:
"""Return chart of accounts — from local cache if available, otherwise fetch externally and cache."""
configRecord = await self.getActiveConfig(featureInstanceId)
if not configRecord:
return []
charts = self._readCachedCharts(configRecord)
if charts:
logger.debug(f"Using cached chart of accounts ({len(charts)} entries) for instance {featureInstanceId}")
else:
logger.info(f"No cached chart — fetching live for instance {featureInstanceId}")
charts = await self.refreshChartOfAccounts(featureInstanceId)
if accountType:
charts = [c for c in charts if c.accountType == accountType]
return charts
async def _getExpenseAccounts(self, featureInstanceId: str) -> List[AccountingChart]:
"""Load only expense accounts (Aufwandkonten) for use in AI prompts."""
return await self.getChartOfAccounts(featureInstanceId, accountType="expense")
async def testConnection(self, featureInstanceId: str) -> SyncResult:
"""Test the connection with the configured accounting system."""
connector, plainConfig, _ = await self._resolveConnectorAndConfig(featureInstanceId)
if not connector or not plainConfig:
return SyncResult(success=False, errorMessage="No active accounting configuration found")
return await connector.testConnection(plainConfig)