// hDiyanetProxy - Yer Bilgisi Modeli
const pool = require('../utils/db');

const PlaceModel = {
  // --- Ülkeler ---
  async upsertCountry(id, name) {
    await pool.execute(
      'INSERT INTO countries (id, name) VALUES (?, ?) ON DUPLICATE KEY UPDATE name = VALUES(name)',
      [id, name]
    );
  },

  async getAllCountries() {
    const [rows] = await pool.execute('SELECT * FROM countries ORDER BY name');
    return rows;
  },

  // --- Eyaletler / İller ---
  async upsertState(id, name, countryId) {
    await pool.execute(
      'INSERT INTO states (id, name, country_id) VALUES (?, ?, ?) ON DUPLICATE KEY UPDATE name = VALUES(name)',
      [id, name, countryId]
    );
  },

  async getStatesByCountry(countryId) {
    const [rows] = await pool.execute('SELECT * FROM states WHERE country_id = ? ORDER BY name', [countryId]);
    return rows;
  },

  async getAllStates() {
    const [rows] = await pool.execute('SELECT * FROM states ORDER BY name');
    return rows;
  },

  // --- Şehirler / İlçeler ---
  async upsertCity(id, name, stateId, lat = null, lng = null) {
    await pool.execute(
      'INSERT INTO cities (id, name, state_id, latitude, longitude) VALUES (?, ?, ?, ?, ?) ON DUPLICATE KEY UPDATE name = VALUES(name), latitude = VALUES(latitude), longitude = VALUES(longitude)',
      [id, name, stateId, lat, lng]
    );
  },

  async getCitiesByState(stateId) {
    const [rows] = await pool.execute('SELECT * FROM cities WHERE state_id = ? ORDER BY name', [stateId]);
    return rows;
  },

  async getCityDetail(cityId) {
    const [rows] = await pool.execute(
      `SELECT c.*, s.name as state_name, co.name as country_name 
       FROM cities c 
       JOIN states s ON c.state_id = s.id 
       JOIN countries co ON s.country_id = co.id 
       WHERE c.id = ?`,
      [cityId]
    );
    return rows[0] || null;
  },

  // İstatistikler
  async getStats() {
    const [[countries]] = await pool.execute('SELECT COUNT(*) as count FROM countries');
    const [[states]] = await pool.execute('SELECT COUNT(*) as count FROM states');
    const [[cities]] = await pool.execute('SELECT COUNT(*) as count FROM cities');
    const [[prayerTimes]] = await pool.execute('SELECT COUNT(*) as count FROM prayer_times');
    const [[ramadanTimes]] = await pool.execute('SELECT COUNT(*) as count FROM ramadan_times');
    const [[eidTimes]] = await pool.execute('SELECT COUNT(*) as count FROM eid_times');
    return {
      countries: countries.count,
      states: states.count,
      cities: cities.count,
      prayerTimes: prayerTimes.count,
      ramadanTimes: ramadanTimes.count,
      eidTimes: eidTimes.count
    };
  }
};

module.exports = PlaceModel;