const apiConfig = require("../config/apiConfig.js")
const axios = require("axios");


// Geocode using Google Geocoding API. Returns { lat, lon } or null
async function geocodeWithGoogle(address) {
  const key = apiConfig.googleApiKey;
  if (!key) return null;
  try {
    const url = 'https://maps.googleapis.com/maps/api/geocode/json';
    const r = await axios.get(url, {
      params: { address, key },
      timeout: 10000,
    });

    // ensure HTTP 200
    if (!r || r.status !== 200) {
      console.warn(`geocodeWithGoogle unexpected status for '${address}': ${r && r.status}`);
      return null;
    }

    if (r.data && Array.isArray(r.data.results) && r.data.results.length > 0) {
      const loc = r.data.results[0].geometry && r.data.results[0].geometry.location;
      const lat = loc && (loc.lat !== undefined ? Number(loc.lat) : NaN);
      const lng = loc && (loc.lng !== undefined ? Number(loc.lng) : NaN);
      if (!Number.isNaN(lat) && !Number.isNaN(lng)) {
        return { lat, lon: lng };
      }
    }
    return null;
  } catch (e) {
    console.warn(`geocodeWithGoogle error for '${address}': ${e && e.message}`, e && e.stack);
    return null;
  }
}

module.exports = { geocodeWithGoogle };