import http from 'http';
import { spawn } from 'child_process';

const PORT = 3055;
const BASE_URL = `http://127.0.0.1:${PORT}`;

async function sleep(ms) {
  return new Promise((resolve) => setTimeout(resolve, ms));
}

async function request(path, options = {}) {
  const url = `${BASE_URL}${path}`;
  const headers = { 'Content-Type': 'application/json', ...(options.headers || {}) };
  const res = await fetch(url, {
    method: options.method || 'GET',
    headers,
    body: options.body ? JSON.stringify(options.body) : undefined,
  });
  const data = await res.json().catch(() => ({ text: '' }));
  return { status: res.status, ok: res.ok, data };
}

async function runTests() {
  console.log('🧪 Iniciando pruebas automáticas de funcionalidad en vivo...');

  // 1. Levantar servidor en puerto dedicado 3055
  const serverProcess = spawn('node', ['dist-server/index.js'], {
    env: { ...process.env, PORT: String(PORT), NODE_ENV: 'production' },
    stdio: 'pipe',
  });

  serverProcess.stdout.on('data', (d) => process.stdout.write(`[SERVER] ${d}`));
  serverProcess.stderr.on('data', (d) => process.stderr.write(`[SERVER ERR] ${d}`));

  await sleep(2000);

  try {
    // 2. Health check
    console.log('\n1. Test Health Check:');
    const health = await request('/api/health');
    console.log('   Status:', health.status, 'Response:', JSON.stringify(health.data));
    if (!health.ok || health.data.status !== 'ok') throw new Error('Health check failed');
    console.log('   ✅ Health check OK');

    // 3. Obtener votos iniciales
    console.log('\n2. Test GET /api/votes:');
    const initialVotes = await request('/api/votes');
    console.log('   Initial votes count:', initialVotes.data.total);
    console.log('   ✅ GET /api/votes OK');

    // 4. Conectar al stream Server-Sent Events (SSE)
    console.log('\n3. Test Live SSE Stream (/api/stream):');
    let sseReceivedCount = 0;
    const sseReq = http.get(`${BASE_URL}/api/stream`, (res) => {
      res.on('data', (chunk) => {
        const text = chunk.toString();
        if (text.includes('event: votes') || text.includes('event: initial')) {
          sseReceivedCount++;
          console.log(`   ⚡ Evento SSE recibido en tiempo real! (total eventos: ${sseReceivedCount})`);
        }
      });
    });

    await sleep(500);

    // 5. Emitir Voto Válido 1 (SERVANDO vota por ANNA)
    console.log('\n4. Test Emitir Voto (SERVANDO -> ANNA):');
    const vote1 = await request('/api/vote', {
      method: 'POST',
      body: { voter: 'SERVANDO PEREZ', candidate: 'ANNA' },
    });
    console.log('   Vote 1 status:', vote1.status, 'Data:', vote1.data);
    if (!vote1.ok || !vote1.data.success) throw new Error('Vote 1 failed');
    console.log('   ✅ Voto 1 registrado');

    await sleep(400);

    // 6. Emitir Voto Válido 2 (MELINA vota por URIEL)
    console.log('\n5. Test Emitir Voto (MELINA -> URIEL):');
    const vote2 = await request('/api/vote', {
      method: 'POST',
      body: { voter: 'MELINA GOMEZ', candidate: 'URIEL' },
    });
    console.log('   Vote 2 status:', vote2.status, 'Data:', vote2.data);
    if (!vote2.ok || !vote2.data.success) throw new Error('Vote 2 failed');
    console.log('   ✅ Voto 2 registrado');

    await sleep(400);

    // 7. Test Anti-Autovoto (URIEL intenta votar por URIEL)
    console.log('\n6. Test Bloqueo de Autovoto (URIEL -> URIEL):');
    const selfVote = await request('/api/vote', {
      method: 'POST',
      body: { voter: 'URIEL JARETH', candidate: 'URIEL' },
    });
    console.log('   Self-vote status:', selfVote.status, 'Data:', selfVote.data);
    if (selfVote.status !== 400) throw new Error('Anti-autovoto no bloqueó la petición');
    console.log('   ✅ Autovoto bloqueado correctamente con 400 Bad Request');

    // 8. Verificar lista de votos actualizada
    console.log('\n7. Test Verificación de Conteo y Persistencia:');
    const updatedVotes = await request('/api/votes');
    console.log('   Votos registrados:', updatedVotes.data.votes);
    if (updatedVotes.data.total < 2) throw new Error('Total de votos incorrecto');
    console.log('   ✅ Conteo verificado: Total =', updatedVotes.data.total);

    // 9. Test Restablecer Voto (Admin DELETE)
    console.log('\n8. Test Panel Admin - Restablecer Voto (/api/vote/:voter):');
    const deleteRes = await request('/api/vote/SERVANDO%20PEREZ', {
      method: 'DELETE',
      headers: { 'x-admin-key': 'RESETEOE3' },
    });
    console.log('   Delete status:', deleteRes.status, 'Data:', deleteRes.data);
    if (!deleteRes.ok) throw new Error('Delete vote failed');
    console.log('   ✅ Voto de SERVANDO restablecido');

    await sleep(500);

    // 10. Confirmar estado final
    const finalVotes = await request('/api/votes');
    console.log('\n9. Estado final de votos:', finalVotes.data.votes);

    sseReq.destroy();

    console.log('\n=========================================');
    console.log('🎉 TODAS LAS PRUEBAS EN VIVO PASARON CON ÉXITO (100% FUNCIONAL)');
    console.log('=========================================\n');
  } finally {
    serverProcess.kill();
  }
}

runTests().catch((err) => {
  console.error('❌ Error en pruebas:', err);
  process.exit(1);
});