/**
 * Скрипт для проверки синхронизации deployments между WellNuo DB и Legacy API
 *
 * Проверяет:
 * 1. Все beneficiaries в нашей БД
 * 2. Их legacy_deployment_id
 * 3. Существуют ли эти deployments в Legacy API
 */

const https = require('https');
const { Client } = require('pg');
require('dotenv').config();

// Legacy API credentials
const LEGACY_API = {
  host: 'eluxnetworks.net',
  path: '/function/well-api/api',
  user: process.env.LEGACY_API_USERNAME || 'robster',
  token: process.env.LEGACY_API_TOKEN
};

// WellNuo DB credentials
const DB_CONFIG = {
  host: process.env.DB_HOST,
  port: parseInt(process.env.DB_PORT || '5432'),
  database: process.env.DB_NAME,
  user: process.env.DB_USER,
  password: process.env.DB_PASSWORD,
  connectionTimeoutMillis: 15000,
  ssl: { rejectUnauthorized: false }
};

// Helper: make Legacy API request
function legacyRequest(params) {
  return new Promise((resolve, reject) => {
    const querystring = require('querystring');
    const data = querystring.stringify({
      user_name: LEGACY_API.user,
      token: LEGACY_API.token,
      ...params
    });

    const options = {
      hostname: LEGACY_API.host,
      path: LEGACY_API.path,
      method: 'POST',
      headers: {
        'Content-Type': 'application/x-www-form-urlencoded',
        'Content-Length': data.length
      }
    };

    const req = https.request(options, (res) => {
      let body = '';
      res.on('data', (chunk) => body += chunk);
      res.on('end', () => {
        try {
          resolve(JSON.parse(body));
        } catch (e) {
          resolve({ error: 'Invalid JSON', raw: body.substring(0, 200) });
        }
      });
    });

    req.on('error', reject);
    req.write(data);
    req.end();
  });
}

async function main() {
  console.log('='.repeat(70));
  console.log('ПРОВЕРКА СИНХРОНИЗАЦИИ DEPLOYMENTS: WellNuo DB ↔ Legacy API');
  console.log('='.repeat(70));
  console.log();

  // 1. Получаем список deployments из Legacy API
  console.log('1. Загружаем deployments из Legacy API...');
  const legacyDeployments = await legacyRequest({
    function: 'deployments_list',
    first: '0',
    last: '500'
  });

  const legacyIds = new Set();
  if (legacyDeployments.result_list) {
    legacyDeployments.result_list.forEach(d => legacyIds.add(d.deployment_id));
    console.log(`   Найдено ${legacyDeployments.result_list.length} deployments в Legacy API`);
    console.log(`   IDs: ${[...legacyIds].sort((a,b) => a-b).join(', ')}`);
  } else {
    console.log('   ОШИБКА: не удалось получить список из Legacy API');
    console.log('   Response:', JSON.stringify(legacyDeployments));
  }
  console.log();

  // 2. Подключаемся к WellNuo DB
  console.log('2. Загружаем данные из WellNuo DB...');
  const client = new Client(DB_CONFIG);

  try {
    await client.connect();
    console.log('   Подключение к БД успешно');

    // Получаем всех beneficiaries с их deployments
    const result = await client.query(`
      SELECT
        b.id as beneficiary_id,
        b.name as beneficiary_name,
        b.equipment_status,
        bd.id as deployment_id,
        bd.name as deployment_name,
        bd.legacy_deployment_id,
        bd.is_primary
      FROM beneficiaries b
      LEFT JOIN beneficiary_deployments bd ON b.id = bd.beneficiary_id
      ORDER BY b.id
    `);

    console.log(`   Найдено ${result.rows.length} записей`);
    console.log();

    // 3. Анализ
    console.log('3. АНАЛИЗ СИНХРОНИЗАЦИИ:');
    console.log('-'.repeat(70));
    console.log(
      'Ben.ID'.padEnd(8) +
      'Имя'.padEnd(20) +
      'Deploy.ID'.padEnd(12) +
      'Legacy ID'.padEnd(12) +
      'Статус Legacy'
    );
    console.log('-'.repeat(70));

    let okCount = 0;
    let missingCount = 0;
    let nullCount = 0;
    const problems = [];

    for (const row of result.rows) {
      const legacyId = row.legacy_deployment_id;
      const name = (row.beneficiary_name || '').substring(0, 18);

      let status;
      if (legacyId === null) {
        status = '⚠️  NULL';
        nullCount++;
        problems.push({
          beneficiaryId: row.beneficiary_id,
          name,
          deploymentId: row.deployment_id,
          legacyId: null,
          issue: 'legacy_deployment_id is NULL'
        });
      } else if (legacyIds.has(legacyId)) {
        status = '✅ EXISTS';
        okCount++;
      } else {
        status = '❌ NOT FOUND';
        missingCount++;
        problems.push({
          beneficiaryId: row.beneficiary_id,
          name,
          deploymentId: row.deployment_id,
          legacyId,
          issue: `Legacy deployment ${legacyId} does not exist`
        });
      }

      console.log(
        String(row.beneficiary_id).padEnd(8) +
        name.padEnd(20) +
        String(row.deployment_id || '-').padEnd(12) +
        String(legacyId || 'NULL').padEnd(12) +
        status
      );
    }

    console.log('-'.repeat(70));
    console.log();

    // 4. Итоги
    console.log('4. ИТОГИ:');
    console.log(`   ✅ Синхронизированы: ${okCount}`);
    console.log(`   ⚠️  NULL legacy_id:   ${nullCount}`);
    console.log(`   ❌ Не существуют:    ${missingCount}`);
    console.log();

    if (problems.length > 0) {
      console.log('5. ПРОБЛЕМНЫЕ ЗАПИСИ (нужно исправить):');
      console.log('-'.repeat(70));
      for (const p of problems) {
        console.log(`   Beneficiary #${p.beneficiaryId} (${p.name}):`);
        console.log(`     - WellNuo deployment_id: ${p.deploymentId}`);
        console.log(`     - legacy_deployment_id: ${p.legacyId}`);
        console.log(`     - Проблема: ${p.issue}`);
        console.log();
      }
    }

    // 5. Дополнительно: проверим устройства для проблемных deployments
    if (problems.filter(p => p.legacyId !== null).length > 0) {
      console.log('6. ПРОВЕРКА УСТРОЙСТВ ДЛЯ НЕСУЩЕСТВУЮЩИХ DEPLOYMENTS:');
      console.log('-'.repeat(70));

      for (const p of problems.filter(p => p.legacyId !== null)) {
        const devicesResp = await legacyRequest({
          function: 'device_list_by_deployment',
          deployment_id: String(p.legacyId),
          first: '0',
          last: '50'
        });

        const deviceCount = devicesResp.result_list ? devicesResp.result_list.length : 0;
        console.log(`   Legacy deployment ${p.legacyId}: ${deviceCount} устройств`);
      }
    }

  } catch (error) {
    console.error('   ОШИБКА БД:', error.message);
  } finally {
    await client.end();
  }

  console.log();
  console.log('='.repeat(70));
  console.log('Проверка завершена');
}

main().catch(console.error);