Initial import of zappier-edge from zapier monorepo

tests/health-proxy-credits.test.ts

@@ -0,0 +1,87 @@
+import request from 'supertest';
+import { buildApp } from '../src/app';
+
+const KEY = 'key-ada';
+const ADMIN = { 'x-admin-key': 'admin-dev-key' };
+
+describe('zappier-edge operational wiring', () => {
+  it('GET /health is public', async () => {
+    const { app } = buildApp();
+    const res = await request(app).get('/health');
+    expect(res.status).toBe(200);
+    expect(res.body.role).toBe('zappier-edge');
+  });
+
+  it('proxies timestamp to middleware when ZAPPIER_UPSTREAM is set', async () => {
+    process.env.ZAPPIER_UPSTREAM = 'http://upstream.test';
+    const orig = globalThis.fetch;
+    globalThis.fetch = jest.fn(async (url: string | URL) => {
+      expect(String(url)).toContain('/zapier/v1/timestamp');
+      return new Response(JSON.stringify({ jobId: 'mw-1', sha256: 'abc' }), {
+        status: 202,
+        headers: { 'content-type': 'application/json' },
+      });
+    }) as typeof fetch;
+    try {
+      const { app } = buildApp();
+      const res = await request(app).post('/v1/timestamp').set('x-api-key', KEY).send({ data: 'hello' });
+      expect(res.status).toBe(202);
+      expect(res.body.jobId).toBe('mw-1');
+      expect(res.body.quote.totalCents).toBeGreaterThanOrEqual(0);
+    } finally {
+      globalThis.fetch = orig;
+      delete process.env.ZAPPIER_UPSTREAM;
+    }
+  });
+
+  it('customers CS and sales can review a statement', async () => {
+    const { app } = buildApp();
+    await request(app)
+      .post('/admin/api/credits')
+      .set(ADMIN)
+      .send({ customerId: 'cust_1', cents: 250, reason: 'goodwill', agent: 'cs' });
+    const st = await request(app).get('/admin/api/statement/cust_1').set(ADMIN);
+    expect(st.status).toBe(200);
+    expect(st.body.prepaidCents).toBeGreaterThanOrEqual(250);
+    expect(st.body.credits.length).toBeGreaterThan(0);
+  });
+
+  it('customer service can add prepaid credits', async () => {
+    const { app } = buildApp();
+    const add = await request(app)
+      .post('/admin/api/credits')
+      .set(ADMIN)
+      .send({ customerId: 'cust_1', cents: 500, reason: 'goodwill', agent: 'cs-anna' });
+    expect(add.status).toBe(201);
+    expect(add.body.cents).toBe(500);
+    const list = await request(app).get('/admin/api/credits?customerId=cust_1').set(ADMIN);
+    expect(list.body.credits[0].reason).toBe('goodwill');
+  });
+
+  it('sales quote returns per-customer multiplier', async () => {
+    const { app } = buildApp();
+    const res = await request(app).get('/admin/api/sales/quote/cust_2').set(ADMIN);
+    expect(res.status).toBe(200);
+    expect(res.body.tierId).toBe('pro');
+  });
+
+  it('exports issued invoices as QuickBooks IIF', async () => {
+    const { app, usage } = buildApp();
+    usage.record({
+      customerId: 'cust_2',
+      endpointId: 'transform',
+      cents: 400,
+      metadataBytes: 0,
+      attachmentBytes: 0,
+      timestamp: new Date('2026-07-05T10:00:00Z'),
+    });
+    await request(app).post('/admin/api/invoices/generate').set(ADMIN).send({ period: '2026-07' });
+    await request(app).post('/admin/api/invoices/INV-2026-07-0001/issue').set(ADMIN);
+    const iif = await request(app).get('/admin/api/exports/quickbooks.iif?period=2026-07').set(ADMIN);
+    expect(iif.status).toBe(200);
+    expect(iif.text).toContain('TRNS');
+    expect(iif.text).toContain('INV-2026-07-0001');
+    const csv = await request(app).get('/admin/api/exports/accounting.csv?period=2026-07').set(ADMIN);
+    expect(csv.text).toContain('invoice_id');
+  });
+});