import { after, before, test } from 'node:test';
import assert from 'node:assert/strict';
import { prepareTestDatabase, startServer, type RunningServer } from '../helpers/testServer.js';
import { applyTestConfig } from '../helpers/testConfig.js';

const dbUrl = prepareTestDatabase('test-ops');

const { createApp } = await import('../../src/http/app.js');
const { db, disconnectDb } = await import('../../src/store/db.js');
const { audit } = await import('../../src/store/auditLog.js');

let running: RunningServer;

const ADMIN = 'Bearer test-admin-token';
const ADMIN_ENDPOINTS = [
  '/admin/events',
  '/admin/jobs',
  '/admin/messages',
  '/admin/tickets',
  '/admin/meta',
];

before(async () => {
  applyTestConfig({ DATABASE_URL: dbUrl });
  running = await startServer(createApp());

  await db().ticket.create({
    data: { conversationId: 4242, ticketNumber: 'EKS-20260820-4242', reason: 'test handoff' },
  });
  await db().processedMessage.create({
    data: { source: 'chatwoot', messageId: 'm-1', conversationId: 4242, status: 'skipped', reason: 'ticket_mode' },
  });
  await db().processedMessage.create({
    data: { source: 'chatwoot', messageId: 'm-2', conversationId: 99, status: 'replied' },
  });
  await audit({ conversationId: 4242, messageId: 'm-1', jobId: 'job-1', eventType: 'webhook_accepted', summary: 'Queued job job-1' });
  await audit({ conversationId: 4242, messageId: 'm-1', eventType: 'skipped_ticket_mode', summary: 'ticket mode' });
  await audit({ conversationId: 99, messageId: 'm-2', eventType: 'reply_sent', summary: 'AI reply sent' });
});

after(async () => {
  await running.close();
  await disconnectDb();
});

async function get(path: string, auth?: string) {
  const headers: Record<string, string> = {};
  if (auth) headers.Authorization = auth;
  const res = await fetch(`${running.baseUrl}${path}`, { headers, redirect: 'manual' });
  const text = await res.text();
  let json: Record<string, unknown> | null = null;
  try {
    json = JSON.parse(text) as Record<string, unknown>;
  } catch {
    json = null;
  }
  return { status: res.status, text, json, headers: res.headers };
}

// ───────────────────────────────────────────────────────────── panel shell

test('GET /ops serves the panel shell without a token', async () => {
  const res = await get('/ops');
  assert.equal(res.status, 200);
  assert.match(res.headers.get('content-type') ?? '', /text\/html/);
  assert.match(res.text, /EKSRelay/);
  assert.match(res.text, /ADMIN_TOKEN/); // the prompt label, not a value
});

test('the shell leaks no data and no credential', async () => {
  const res = await get('/ops');
  // Nothing from the seeded database may appear in the static HTML.
  assert.ok(!res.text.includes('EKS-20260820-4242'), 'ticket number must not be inlined');
  assert.ok(!res.text.includes('test-admin-token'), 'token must never be inlined');
  assert.ok(!res.text.includes('test-shared-secret'));
  assert.ok(!res.text.includes('test-chatwoot-token'));
  assert.ok(!res.text.includes('4242'), 'no conversation data may be inlined');
});

test('the shell never puts the token in a query string', async () => {
  const res = await get('/ops');
  assert.ok(!/searchParams\.set\(\s*['"]token/i.test(res.text));
  assert.ok(!/[?&]token=/.test(res.text));
  // It must authenticate through the header instead.
  assert.match(res.text, /Authorization['"]?\s*:\s*['"]Bearer/);
});

test('the shell sends hardening headers', async () => {
  const res = await get('/ops');
  assert.equal(res.headers.get('cache-control'), 'no-store');
  assert.match(res.headers.get('x-robots-tag') ?? '', /noindex/);
  const csp = res.headers.get('content-security-policy') ?? '';
  assert.match(csp, /default-src 'none'/);
  assert.match(csp, /script-src-elem/);
  assert.match(csp, /img-src 'self'/);
  assert.match(csp, /connect-src 'self'/);
  assert.match(csp, /frame-ancestors 'none'/);
  assert.match(res.text, /data-cfasync="false"/);
  assert.ok(!res.text.includes('<form'), 'login must not depend on a form submit that CSP/Cloudflare can block');
});

test('the panel is not mounted inside the protected /admin namespace', async () => {
  const res = await get('/admin/ui');
  assert.equal(res.status, 401, '/admin/* must stay uniformly token-protected');
});

// ───────────────────────────────────────────────────────────────── auth

test('every admin endpoint rejects a missing token', async () => {
  for (const path of ADMIN_ENDPOINTS) {
    const res = await get(path);
    assert.equal(res.status, 401, `${path} must require a token`);
    assert.equal(res.json?.code, 'UNAUTHORIZED');
  }
});

test('every admin endpoint rejects a wrong token', async () => {
  for (const path of ADMIN_ENDPOINTS) {
    const res = await get(path, 'Bearer nope');
    assert.equal(res.status, 401, `${path} must reject a wrong token`);
  }
});

test('the relay shared secret does not open the admin API', async () => {
  for (const path of ADMIN_ENDPOINTS) {
    const res = await get(path, 'Bearer test-shared-secret');
    assert.equal(res.status, 401, `${path} must not accept the tool secret`);
  }
});

test('a token is not accepted from the query string', async () => {
  const res = await get('/admin/events?token=test-admin-token');
  assert.equal(res.status, 401);
});

test('admin endpoints answer with a valid token', async () => {
  for (const path of ADMIN_ENDPOINTS) {
    const res = await get(path, ADMIN);
    assert.equal(res.status, 200, `${path} should answer`);
    assert.equal(res.json?.ok, true);
  }
});

// ─────────────────────────────────────────────────────────── read-only

test('the admin API exposes no write verbs', async () => {
  for (const path of ADMIN_ENDPOINTS) {
    for (const method of ['POST', 'PUT', 'PATCH', 'DELETE']) {
      const res = await fetch(`${running.baseUrl}${path}`, {
        method,
        headers: { Authorization: ADMIN, 'Content-Type': 'application/json' },
        body: method === 'DELETE' ? undefined : '{}',
      });
      assert.equal(res.status, 404, `${method} ${path} must not exist`);
    }
  }
});

test('a read call does not mutate stored data', async () => {
  const before = {
    tickets: await db().ticket.count(),
    messages: await db().processedMessage.count(),
    events: await db().auditEvent.count(),
  };
  for (const path of ADMIN_ENDPOINTS) await get(path, ADMIN);
  assert.deepEqual(
    {
      tickets: await db().ticket.count(),
      messages: await db().processedMessage.count(),
      events: await db().auditEvent.count(),
    },
    before,
  );
});

// ──────────────────────────────────────────────────────────── filters

test('events filter by conversationId', async () => {
  const res = await get('/admin/events?conversationId=99', ADMIN);
  const events = res.json?.events as { conversationId: number }[];
  assert.ok(events.length > 0);
  assert.ok(events.every((e) => e.conversationId === 99));
});

test('events filter by eventType', async () => {
  const res = await get('/admin/events?eventType=reply_sent', ADMIN);
  const events = res.json?.events as { eventType: string }[];
  assert.ok(events.length > 0);
  assert.ok(events.every((e) => e.eventType === 'reply_sent'));
});

test('events expose jobId as a column', async () => {
  const res = await get('/admin/events?eventType=webhook_accepted', ADMIN);
  const events = res.json?.events as { jobId: string | null }[];
  assert.equal(events[0]?.jobId, 'job-1');
});

test('limit is honoured and clamped to a sane maximum', async () => {
  const one = await get('/admin/events?limit=1', ADMIN);
  assert.equal((one.json?.events as unknown[]).length, 1);

  const clamped = await get('/admin/events?limit=100000', ADMIN);
  assert.ok((clamped.json?.events as unknown[]).length <= 200);

  const nonsense = await get('/admin/events?limit=abc', ADMIN);
  assert.equal(nonsense.status, 200, 'a bad limit must not 500');
});

test('messages filter by status and conversationId', async () => {
  const byStatus = await get('/admin/messages?status=replied', ADMIN);
  const rows = byStatus.json?.messages as { status: string }[];
  assert.ok(rows.length > 0);
  assert.ok(rows.every((m) => m.status === 'replied'));

  const byConv = await get('/admin/messages?conversationId=4242', ADMIN);
  const convRows = byConv.json?.messages as { conversationId: number }[];
  assert.ok(convRows.every((m) => m.conversationId === 4242));
});

test('jobs report queue statistics and a dead list', async () => {
  const res = await get('/admin/jobs', ADMIN);
  assert.ok(res.json?.stats);
  assert.ok(Array.isArray(res.json?.jobs));
  assert.ok(Array.isArray(res.json?.dead));
});

test('tickets carry the number, conversation, reason and derived activity', async () => {
  const res = await get('/admin/tickets', ADMIN);
  const tickets = res.json?.tickets as Record<string, unknown>[];
  const t = tickets.find((x) => x.conversationId === 4242);
  assert.ok(t, 'seeded ticket should be listed');
  assert.equal(t.ticketNumber, 'EKS-20260820-4242');
  assert.equal(t.reason, 'test handoff');
  assert.ok(t.createdAt);
  assert.equal(t.messagesSkippedSince, 1);
  assert.ok(typeof t.lastEventType === 'string');
});

test('meta supplies the filter vocabulary without secrets', async () => {
  const res = await get('/admin/meta', ADMIN);
  const body = res.json as Record<string, unknown>;
  assert.ok(Array.isArray(body.eventTypes));
  assert.ok((body.eventTypes as string[]).includes('reply_sent'));
  assert.ok(body.counts);

  const serialized = JSON.stringify(body);
  assert.ok(!serialized.includes('test-admin-token'));
  assert.ok(!serialized.includes('test-shared-secret'));
  assert.ok(!serialized.includes('test-chatwoot-token'));
  assert.ok(!serialized.includes('test-flowise-key'));
  assert.ok(!serialized.includes('ck_'));
});