viabiliza/service/geocodeService.js

const dotenv = require('dotenv');
const axios = require('axios');
dotenv.config();

// Geocode using Google Geocoding API. Returns { lat, lon } or null
 async function geocodeWithGoogle(address) {
   const key = process.env.GOOGLE_API_KEY;
   if (!key) return null;
   try {
     const url = `https://maps.googleapis.com/maps/api/geocode/json?address=${encodeURIComponent(address)}&key=${encodeURIComponent(key)}`;
     const r = await axios.get(url, { timeout: 10000 });
     if (r && 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;
       if (loc && loc.lat !== undefined && loc.lng !== undefined) {
         return { lat: Number(loc.lat), lon: Number(loc.lng) };
       }
     }
     return null;
   } catch (e) {
     console.warn(`geocodeWithGoogle error for '${address}': ${e.message}`);
     return null;
   }
 }

 async function addressWithGoogle(lat, lon) {
   const key = process.env.GOOGLE_API_KEY;
   if (!key) return null;
    try { 
      const url = `https://maps.googleapis.com/maps/api/geocode/json?latlng=${encodeURIComponent(lat)},${encodeURIComponent(lon)}&key=${encodeURIComponent(key)}`;
      const r = await axios.get(url, { timeout: 10000 });
      if (r && r.data && Array.isArray(r.data.results) && r.data.results.length > 0) {
        console.log(`Google Reverse Geocoding result for ${lat},${lon}: ${r.data.results[0].formatted_address}`);
        return r.data.results[0].formatted_address || null;
      }
      return null;
    } catch (e) {
      console.warn(`addressWithGoogle error for '${lat},${lon}': ${e.message}`);
      return null;
    }
  }

module.exports = { geocodeWithGoogle, addressWithGoogle };