import { mkdtemp, rm } from 'node:fs/promises';
import { tmpdir } from 'node:os';
import { join } from 'node:path';
import { AddressInfo } from 'node:net';
import { afterEach, beforeEach, describe, expect, it } from 'vitest';
import { CatalogDatabase } from '../src/database/store.js';
import { createWebApp } from '../src/web/app.js';

let dir = '';

beforeEach(async () => {
  dir = await mkdtemp(join(tmpdir(), 'nlc-web-'));
});

afterEach(async () => {
  await rm(dir, { force: true, recursive: true });
});

async function withServer(path: string, pathname: string): Promise<string> {
  const app = createWebApp(path);
  const server = app.listen(0);
  try {
    const { port } = server.address() as AddressInfo;
    const response = await fetch(`http://127.0.0.1:${port}${pathname}`);
    return response.text();
  } finally {
    server.close();
  }
}

function fixtureDatabase(): string {
  const path = join(dir, 'catalog.sqlite');
  const db = new CatalogDatabase(path);
  db.saveCatalogRun({
    mode: 'test',
    newslettersProcessed: 1,
    linksExtracted: 1,
    sponsorCount: 1,
    deadLinkCount: 1,
    errors: 0,
    rows: [
      {
        'Issue Date': '2026-05-17',
        Category: 'SQLite',
        'Link URL': 'https://sqlite.example',
        Title: 'SQLite Post',
        Description: 'A local database post',
        'Page Title + Meta': '',
        'Source Newsletter': 'DB Weekly',
        'Also In': ''
      }
    ],
    sponsors: [
      {
        Newsletter: 'DB Weekly',
        Sponsor: 'Acme',
        Link: 'https://sponsor.example',
        Description: 'Blurb'
      }
    ],
    deadLinks: [
      { URL: 'https://dead.example', Status: '404', Source: 'DB Weekly', Date: '2026-05-17' }
    ]
  });
  db.close();
  return path;
}

describe('web app', () => {
  it('renders dashboard and catalog pages from SQLite', async () => {
    const path = fixtureDatabase();

    await expect(withServer(path, '/')).resolves.toContain('Newsletter Link Catalog');
    await expect(withServer(path, '/links')).resolves.toContain('SQLite Post');
    await expect(withServer(path, '/sponsors')).resolves.toContain('Acme');
    await expect(withServer(path, '/dead-links')).resolves.toContain('https://dead.example');
    await expect(withServer(path, '/runs')).resolves.toContain('test');
  });
});