import { test, after } from 'node:test';
import assert from 'node:assert/strict';
import { newApp, seedFixtures, seedHost } from './helpers.js';

const validIface = (host_id, name = 'eth0') => ({
  host_id,
  name,
  mac_address: 'aa:bb:cc:dd:ee:ff',
  ip_address:  '10.0.0.5',
  subnet:      '10.0.0.0/24',
  link_speed:  '1000/full',
});

test('interfaces: create, list, get, update, delete', async () => {
  const app = await newApp();
  after(() => app.close());
  const fx   = await seedFixtures(app);
  const host = await seedHost(app, fx, 'A');

  const create = await app.inject({
    method: 'POST', url: '/api/interfaces',
    payload: validIface(host.id, 'eth0'),
  });
  assert.equal(create.statusCode, 201);
  const iface = JSON.parse(create.body);
  assert.equal(iface.name, 'eth0');
  assert.equal(iface.host_id, host.id);
  assert.equal(iface.ip_address, '10.0.0.5');

  const list = await app.inject({
    method: 'GET', url: `/api/interfaces?host_id=${host.id}`,
  });
  assert.equal(list.statusCode, 200);
  assert.equal(JSON.parse(list.body).length, 1);

  const get = await app.inject({ method: 'GET', url: `/api/interfaces/${iface.id}` });
  assert.equal(get.statusCode, 200);
  assert.equal(JSON.parse(get.body).name, 'eth0');

  const upd = await app.inject({
    method: 'PUT', url: `/api/interfaces/${iface.id}`,
    payload: { ...validIface(host.id, 'eth0'), ip_address: '10.0.0.99' },
  });
  assert.equal(upd.statusCode, 200);
  assert.equal(JSON.parse(upd.body).ip_address, '10.0.0.99');

  const del = await app.inject({ method: 'DELETE', url: `/api/interfaces/${iface.id}` });
  assert.equal(del.statusCode, 204);
  const after404 = await app.inject({ method: 'GET', url: `/api/interfaces/${iface.id}` });
  assert.equal(after404.statusCode, 404);
});

test('interfaces: optional fields may be empty strings', async () => {
  const app = await newApp();
  after(() => app.close());
  const fx   = await seedFixtures(app);
  const host = await seedHost(app, fx, 'B');

  const r = await app.inject({
    method: 'POST', url: '/api/interfaces',
    payload: { host_id: host.id, name: 'eth0' },
  });
  assert.equal(r.statusCode, 201);
  const iface = JSON.parse(r.body);
  assert.equal(iface.mac_address, '');
  assert.equal(iface.ip_address, '');
  assert.equal(iface.subnet, '');
  assert.equal(iface.link_speed, '');
});

test('interfaces: duplicate (host_id, name) returns 409', async () => {
  const app = await newApp();
  after(() => app.close());
  const fx   = await seedFixtures(app);
  const host = await seedHost(app, fx, 'C');

  const a = await app.inject({
    method: 'POST', url: '/api/interfaces',
    payload: { host_id: host.id, name: 'eth0' },
  });
  assert.equal(a.statusCode, 201);

  const dup = await app.inject({
    method: 'POST', url: '/api/interfaces',
    payload: { host_id: host.id, name: 'eth0' },
  });
  assert.equal(dup.statusCode, 409);
  assert.match(JSON.parse(dup.body).error, /already exists/);
});

test('interfaces: same name allowed on different hosts', async () => {
  const app = await newApp();
  after(() => app.close());
  const fx = await seedFixtures(app);
  const h1 = await seedHost(app, fx, 'D1');
  const h2 = await seedHost(app, fx, 'D2');

  const a = await app.inject({
    method: 'POST', url: '/api/interfaces',
    payload: { host_id: h1.id, name: 'eth0' },
  });
  const b = await app.inject({
    method: 'POST', url: '/api/interfaces',
    payload: { host_id: h2.id, name: 'eth0' },
  });
  assert.equal(a.statusCode, 201);
  assert.equal(b.statusCode, 201);
});

test('interfaces: missing host FK returns 409', async () => {
  const app = await newApp();
  after(() => app.close());

  const r = await app.inject({
    method: 'POST', url: '/api/interfaces',
    payload: { host_id: 9999, name: 'eth0' },
  });
  assert.equal(r.statusCode, 409);
});

test('interfaces: invalid formats return 400 with details', async () => {
  const app = await newApp();
  after(() => app.close());
  const fx   = await seedFixtures(app);
  const host = await seedHost(app, fx, 'E');

  const cases = [
    { mac_address: 'zz:zz:zz:zz:zz:zz' },
    { ip_address:  '999.0.0.1' },
    { subnet:      '10.0.0.0/99' },
    { link_speed:  '1000/weird' },
  ];
  for (const extra of cases) {
    const r = await app.inject({
      method: 'POST', url: '/api/interfaces',
      payload: { host_id: host.id, name: 'eth0', ...extra },
    });
    assert.equal(r.statusCode, 400, `expected 400 for ${JSON.stringify(extra)}`);
    const body = JSON.parse(r.body);
    assert.equal(body.error, 'validation failed');
    assert.ok(Array.isArray(body.details) && body.details.length > 0);
  }
});

test('interfaces: deleting the host cascades', async () => {
  const app = await newApp();
  after(() => app.close());
  const fx   = await seedFixtures(app);
  const host = await seedHost(app, fx, 'F');

  await app.inject({
    method: 'POST', url: '/api/interfaces',
    payload: { host_id: host.id, name: 'eth0' },
  });
  await app.inject({
    method: 'POST', url: '/api/interfaces',
    payload: { host_id: host.id, name: 'eth1' },
  });

  const del = await app.inject({ method: 'DELETE', url: `/api/hosts/${host.id}` });
  assert.equal(del.statusCode, 204);

  const list = await app.inject({
    method: 'GET', url: `/api/interfaces?host_id=${host.id}`,
  });
  assert.equal(list.statusCode, 200);
  assert.equal(JSON.parse(list.body).length, 0);
});

test('interfaces: list requires host_id', async () => {
  const app = await newApp();
  after(() => app.close());

  const r = await app.inject({ method: 'GET', url: '/api/interfaces' });
  assert.equal(r.statusCode, 400);
});