import { describe, it, expect, afterAll } from 'bun:test';
import Database from 'bun:sqlite';
import { startWebServer } from './helpers/server';
import { createTempDb } from './helpers/db';

async function sha256Hex(input: string): Promise<string> {
  const enc = new TextEncoder().encode(input);
  const buf = await crypto.subtle.digest('SHA-256', enc);
  const bytes = new Uint8Array(buf);
  return Array.from(bytes)
    .map((b) => b.toString(16).padStart(2, '0'))
    .join('');
}

function toIsoSql(d = new Date()): string {
  return d.toISOString().replace('T', ' ').replace('Z', '');
}

describe('Web page - /app/integrations', () => {
  const PORT = 19124;
  const BASE = `http://127.0.0.1:${PORT}`;
  const USER = '34600123456';
  const GROUP = '123@g.us';
  const SID = 'sid-test-456';

  const tmp = createTempDb();
  const db: any = tmp.db as Database;

  // Sembrar datos mínimos
  db.exec(`INSERT OR IGNORE INTO users (id) VALUES ('${USER}')`);
  db.exec(`INSERT OR IGNORE INTO groups (id, community_id, name, active) VALUES ('${GROUP}', 'comm1', 'Group Test', 1)`);
  db.exec(`INSERT OR IGNORE INTO allowed_groups (group_id, status, discovered_at, updated_at) VALUES ('${GROUP}', 'allowed', '${toIsoSql()}', '${toIsoSql()}')`);
  db.exec(`INSERT OR IGNORE INTO group_members (group_id, user_id, is_admin, is_active, first_seen_at, last_seen_at) VALUES ('${GROUP}', '${USER}', 0, 1, '${toIsoSql()}', '${toIsoSql()}')`);

  const sidHashPromise = sha256Hex(SID);
  const serverPromise = startWebServer({
    port: PORT,
    env: {
      DB_PATH: tmp.path,
      WEB_BASE_URL: BASE
    }
  });

  let server: Awaited<typeof serverPromise> | null = null;

  afterAll(async () => {
    try { await server?.stop(); } catch {}
    try { tmp.cleanup(); } catch {}
  });

  it('GET /app/integrations: muestra URLs ICS (personal, grupo y multigrupo) cuando se autogeneran', async () => {
    server = await serverPromise;

    const sidHash = await sidHashPromise;
    // Insertar sesión
    db.exec(`
      INSERT OR REPLACE INTO web_sessions (id, user_id, session_hash, created_at, last_seen_at, expires_at)
      VALUES ('sess-2', '${USER}', '${sidHash}', '${toIsoSql()}', '${toIsoSql()}', '${toIsoSql(new Date(Date.now() + 2 * 60 * 60 * 1000))}')
    `);

    const res = await fetch(`${BASE}/app/integrations`, {
      headers: { cookie: `sid=${SID}` }
    });
    expect(res.status).toBe(200);
    const html = await res.text();

    // Debe incluir títulos y al menos una URL .ics
    expect(html.includes('Integraciones')).toBe(true);
    expect(html.includes('Mis tareas (con fecha)')).toBe(true);
    expect(html.includes('Mis grupos (sin responsable)')).toBe(true);
    expect(html.includes('/ics/personal/')).toBe(true);
    expect(html.includes('/ics/group/')).toBe(true);
    expect(html.includes('/ics/aggregate/')).toBe(true);
    expect(html.includes('.ics')).toBe(true);
  });
});