add prisma/seed.ts

prisma/seed.ts

@@ -0,0 +1,92 @@
+import { PrismaClient, UserRole, RoomStatus } from '@prisma/client';
+
+const prisma = new PrismaClient();
+
+/**
+ * Erzeugt Testdaten für die lokale Entwicklung:
+ * - 1 Vermieter
+ * - 4 Zimmer (3x 20qm, 1x 16qm) passend zur Nackenheim-WG
+ * - 4 Mieter mit aktivem Vertrag je Zimmer
+ * - je 1 offene Mietzahlung für den aktuellen Monat (für den Banking-Test)
+ */
+async function main() {
+  console.log('Seed: lösche vorhandene Testdaten...');
+  await prisma.payment.deleteMany();
+  await prisma.contract.deleteMany();
+  await prisma.room.deleteMany();
+  await prisma.user.deleteMany();
+
+  const landlord = await prisma.user.create({
+    data: {
+      email: 'vermieter@example.com',
+      passwordHash: 'not-a-real-hash',
+      fullName: 'Giuseppe Lombardo',
+      role: UserRole.LANDLORD,
+    },
+  });
+
+  const roomDefs = [
+    { roomNumber: 'Zimmer 1', sizeSqm: 20.0, baseRent: 420, utilityPauschal: 130 },
+    { roomNumber: 'Zimmer 2', sizeSqm: 20.0, baseRent: 420, utilityPauschal: 130 },
+    { roomNumber: 'Zimmer 3', sizeSqm: 20.0, baseRent: 420, utilityPauschal: 130 },
+    { roomNumber: 'Zimmer 4', sizeSqm: 16.0, baseRent: 360, utilityPauschal: 120 },
+  ];
+
+  const tenantNames = ['Anna Schmidt', 'Ben Keller', 'Clara Wagner', 'David Hoffmann'];
+
+  for (let i = 0; i < roomDefs.length; i++) {
+    const def = roomDefs[i];
+    const room = await prisma.room.create({
+      data: {
+        roomNumber: def.roomNumber,
+        sizeSqm: def.sizeSqm,
+        baseRent: def.baseRent,
+        utilityPauschal: def.utilityPauschal,
+        status: RoomStatus.OCCUPIED,
+      },
+    });
+
+    const tenant = await prisma.user.create({
+      data: {
+        email: `mieter${i + 1}@example.com`,
+        passwordHash: 'not-a-real-hash',
+        fullName: tenantNames[i],
+        role: UserRole.TENANT,
+        roomId: room.id,
+      },
+    });
+
+    const totalWarmRent = def.baseRent + def.utilityPauschal;
+
+    const contract = await prisma.contract.create({
+      data: {
+        userId: tenant.id,
+        roomId: room.id,
+        startDate: new Date('2025-10-01'),
+        totalWarmRent,
+        depositAmount: totalWarmRent * 3,
+        isActive: true,
+      },
+    });
+
+    const now = new Date();
+    await prisma.payment.create({
+      data: {
+        contractId: contract.id,
+        amount: totalWarmRent,
+        dueDate: new Date(now.getFullYear(), now.getMonth(), 3),
+      },
+    });
+  }
+
+  console.log('Seed abgeschlossen. Vermieter-Login (Demo):', landlord.email);
+}
+
+main()
+  .catch((e) => {
+    console.error(e);
+    process.exit(1);
+  })
+  .finally(async () => {
+    await prisma.$disconnect();
+  });