feat: complete reporting and filing workflows

api/src/tenants/tenants.service.spec.ts

@@ -10,7 +10,8 @@ function createPrismaMock() {
     createdAt: new Date('2026-07-03T00:00:00.000Z'),
     updatedAt: new Date('2026-07-03T00:00:00.000Z'),
   };
-  return {
+  const prisma = {
+    $executeRaw: jest.fn().mockResolvedValue(1),
     tenant: {
       findMany: jest.fn().mockResolvedValue([{ ...tenant, enterpriseCertifications: [] }]),
       findUnique: jest.fn().mockResolvedValue({ ...tenant, enterpriseCertifications: [] }),
@@ -27,6 +28,7 @@ function createPrismaMock() {
     },
     tenantAccount: {
       findMany: jest.fn().mockResolvedValue([{ tenantId: 'tenant-1', balanceCents: 12000, status: 'active' }]),
+      findUnique: jest.fn().mockResolvedValue({ balanceCents: 0 }),
     },
     smsMessageRecord: {
       groupBy: jest.fn().mockResolvedValue([{ tenantId: 'tenant-1', _sum: { amountCents: 350 } }]),
@@ -35,6 +37,10 @@ function createPrismaMock() {
       groupBy: jest.fn().mockResolvedValue([{ tenantId: 'tenant-1', _sum: { amountCents: 125 } }]),
     },
   };
+  return {
+    ...prisma,
+    $transaction: jest.fn((callback: (tx: typeof prisma) => unknown) => callback(prisma)),
+  };
 }
 
 describe('TenantsService', () => {
@@ -96,6 +102,29 @@ describe('TenantsService', () => {
     });
   });
 
+  it('blocks enterprise deletion until a non-zero account balance is cleared', async () => {
+    const prisma = createPrismaMock();
+    prisma.tenantAccount.findUnique.mockResolvedValue({ balanceCents: -1250 });
+    const service = new TenantsService(prisma as never);
+
+    await expect(service.delete('tenant-1')).rejects.toThrow('完成余额清算后方可删除，请给企业充值到金额为0');
+    expect(prisma.tenant.update).not.toHaveBeenCalled();
+    expect(prisma.smsApplication.count).not.toHaveBeenCalled();
+    expect(prisma.$executeRaw).toHaveBeenCalledTimes(1);
+  });
+
+  it('allows enterprise deletion only when the account balance is zero and no applications are active', async () => {
+    const prisma = createPrismaMock();
+    prisma.tenantAccount.findUnique.mockResolvedValue({ balanceCents: 0 });
+    const service = new TenantsService(prisma as never);
+
+    await expect(service.delete('tenant-1')).resolves.toMatchObject({ id: 'tenant-1' });
+    expect(prisma.tenant.update).toHaveBeenCalledWith({
+      where: { id: 'tenant-1' },
+      data: { status: 'deleted' },
+    });
+  });
+
   it('rejects enterprise credit codes containing non-alphanumeric characters', async () => {
     const prisma = createPrismaMock();
     const service = new TenantsService(prisma as never);