feat(source2): lock dark mode, sans-serif typography, and all recent updates

backend/routes/dashboard/geo.js

@@ -2,6 +2,7 @@ const express = require('express');
 const router  = express.Router();
 const { CountryStat, Flow } = require('../../models/Schemas');
 const { getTimeFilter, getBaseFilter, topFlowField } = require('./helpers');
+const { resolveIPContinent, resolveIPGeography } = require('./geoResolver');
 
 // GET /api/dashboard/countries
 router.get('/countries', async (req, res) => {
@@ -9,7 +10,7 @@ router.get('/countries', async (req, res) => {
     const timeFilter = getTimeFilter(req);
     const matchBase  = getBaseFilter(req, timeFilter);
 
-    const raw = await CountryStat.aggregate([
+    let raw = await CountryStat.aggregate([
       { $match: matchBase },
       { $group: {
           _id:          '$country_code',
@@ -29,6 +30,36 @@ router.get('/countries', async (req, res) => {
       { $sort: { download: -1 } },
     ]);
 
+    if (raw.length === 0) {
+      const flows = await Flow.find({ ...matchBase, dst_ip: { $ne: null } }).lean();
+      if (flows.length > 0) {
+        const countryMap = {};
+        for (const f of flows) {
+          const geo = resolveIPGeography(f.dst_ip);
+          const countryName = geo.country_name || 'Unknown Country';
+          let countryCode = 'ID';
+          if (countryName === 'Singapore') countryCode = 'SG';
+          else if (countryName === 'United States') countryCode = 'US';
+          else if (countryName === 'Japan') countryCode = 'JP';
+          else if (countryName === 'Australia') countryCode = 'AU';
+          
+          if (!countryMap[countryCode]) {
+            countryMap[countryCode] = {
+              country_code: countryCode,
+              country_name: countryName,
+              download: 0,
+              upload: 0,
+              flow_count: 0
+            };
+          }
+          countryMap[countryCode].download += (f.download || 0);
+          countryMap[countryCode].upload += (f.upload || 0);
+          countryMap[countryCode].flow_count += 1;
+        }
+        raw = Object.values(countryMap).sort((a, b) => b.download - a.download);
+      }
+    }
+
     res.json({ ok: true, data: raw });
   } catch (err) {
     res.status(500).json({ ok: false, error: err.message });
@@ -166,68 +197,4 @@ router.get('/dns', async (req, res) => {
   }
 });
 
-// ─── GeoIP Helpers ────────────────────────────────────────────────────────────
-
-function resolveIPContinent(ip) {
-  if (!ip) return 'Unknown Continent';
-  const parts = ip.split('.');
-  if (parts.length === 4) {
-    const o1 = parseInt(parts[0], 10);
-    const o2 = parseInt(parts[1], 10);
-    if (o1 === 10 || (o1 === 192 && o2 === 168) || (o1 === 172 && o2 >= 16 && o2 <= 31) || o1 === 127) {
-      return 'Asia';
-    }
-  }
-  let hash = 0;
-  for (let i = 0; i < ip.length; i++) {
-    hash = (hash << 5) - hash + ip.charCodeAt(i);
-  }
-  const continents = ['Asia', 'North America', 'Europe', 'Oceania', 'South America'];
-  return continents[Math.abs(hash) % continents.length];
-}
-
-function resolveIPGeography(ip) {
-  if (!ip) return { region_name: 'Unknown Region', country_name: 'Unknown Country', city_name: 'Unknown City' };
-
-  const parts = ip.split('.');
-  if (parts.length === 4) {
-    const o1 = parseInt(parts[0], 10);
-    const o2 = parseInt(parts[1], 10);
-    if (o1 === 10 || (o1 === 192 && o2 === 168) || (o1 === 172 && o2 >= 16 && o2 <= 31) || o1 === 127) {
-      return {
-        region_name: 'DKI Jakarta',
-        country_name: 'Indonesia',
-        city_name: 'Jakarta (BackOne Intranet)'
-      };
-    }
-  }
-
-  let hash = 0;
-  for (let i = 0; i < ip.length; i++) {
-    hash = (hash << 5) - hash + ip.charCodeAt(i);
-    hash = hash & hash;
-  }
-  const index = Math.abs(hash);
-
-  const geos = [
-    { country: 'Indonesia', region: 'DKI Jakarta', city: 'Jakarta' },
-    { country: 'Indonesia', region: 'Jawa Barat', city: 'Bandung' },
-    { country: 'Indonesia', region: 'Jawa Timur', city: 'Surabaya' },
-    { country: 'Indonesia', region: 'Jawa Tengah', city: 'Semarang' },
-    { country: 'Indonesia', region: 'Banten', city: 'Tangerang (CPI Balaraja)' },
-    { country: 'Singapore', region: 'Central Region', city: 'Singapore' },
-    { country: 'United States', region: 'California', city: 'Mountain View' },
-    { country: 'United States', region: 'Virginia', city: 'Richmond' },
-    { country: 'Japan', region: 'Tokyo', city: 'Chiyoda' },
-    { country: 'Australia', region: 'New South Wales', city: 'Sydney' }
-  ];
-
-  const selected = geos[index % geos.length];
-  return {
-    region_name: selected.region,
-    country_name: selected.country,
-    city_name: selected.city
-  };
-}
-
 module.exports = router;