Datenschutz vollmacht fixed, two time counter added

backend/src/services/contract.service.ts

@@ -125,14 +125,14 @@ export async function getContractById(id: number, decryptPassword = false) {
       previousProvider: true,
       previousContract: {
         include: {
-          energyDetails: { include: { meter: { include: { readings: true } }, invoices: true } },
+          energyDetails: { include: { meter: { include: { readings: true } }, contractMeters: { include: { meter: { include: { readings: true } } }, orderBy: { position: 'asc' as const } }, invoices: true } },
           internetDetails: { include: { phoneNumbers: true } },
           mobileDetails: { include: { simCards: true } },
           tvDetails: true,
           carInsuranceDetails: true,
         },
       },
-      energyDetails: { include: { meter: { include: { readings: true } }, invoices: true } },
+      energyDetails: { include: { meter: { include: { readings: true } }, contractMeters: { include: { meter: { include: { readings: true } } }, orderBy: { position: 'asc' as const } }, invoices: true } },
       internetDetails: { include: { phoneNumbers: true } },
       mobileDetails: { include: { simCards: true } },
       tvDetails: true,
@@ -403,11 +403,45 @@ export async function updateContract(
 
   // Update type-specific details
   if (energyDetails) {
+    const existingEcd = await prisma.energyContractDetails.findUnique({
+      where: { contractId: id },
+      select: { id: true, meterId: true },
+    });
+
     await prisma.energyContractDetails.upsert({
       where: { contractId: id },
       update: energyDetails,
       create: { contractId: id, ...energyDetails },
     });
+
+    // ContractMeter synchronisieren wenn sich der Zähler ändert
+    if (energyDetails.meterId !== undefined && existingEcd) {
+      const oldMeterId = existingEcd.meterId;
+      const newMeterId = energyDetails.meterId;
+
+      if (oldMeterId !== newMeterId) {
+        // Alle alten ContractMeter-Einträge entfernen
+        await prisma.contractMeter.deleteMany({
+          where: { energyContractDetailsId: existingEcd.id },
+        });
+
+        // Neuen ContractMeter-Eintrag erstellen (wenn ein Zähler gesetzt)
+        if (newMeterId) {
+          const contract = await prisma.contract.findUnique({
+            where: { id },
+            select: { startDate: true },
+          });
+          await prisma.contractMeter.create({
+            data: {
+              energyContractDetailsId: existingEcd.id,
+              meterId: newMeterId,
+              position: 0,
+              installedAt: contract?.startDate,
+            },
+          });
+        }
+      }
+    }
   }
 
   if (internetDetails) {