internetforkids/layouts/shortcodes/world-map.html

{{ $lang := .Page.Language.Lang }}
{{ $countries := hugo.Data.countries }}

<link rel="stylesheet" href="{{ "css/maplibre-gl.min.css" | relURL }}" />
<style>
.ifk-map-wrap { max-width: 100%; margin: 2rem 0; }
.ifk-map-wrap h3 { text-align: center; margin-bottom: 0.5rem; font-size: 1.25rem; }
.ifk-map-subtitle { text-align: center; color: #666; font-size: 0.85rem; margin-bottom: 1rem; }
#ifk-world-map { width: 100%; height: 420px; border-radius: 8px; }
.ifk-map-legend {
  display: flex; flex-wrap: wrap; gap: 1rem; justify-content: center;
  margin-top: 1rem; font-size: 0.8rem;
}
.ifk-map-legend-item { display: flex; align-items: center; gap: 0.35rem; }
.ifk-map-legend-swatch { width: 14px; height: 14px; border-radius: 3px; border: 1px solid rgba(0,0,0,0.1); }
.maplibregl-popup-content { font-size: 0.85rem; max-width: 260px; line-height: 1.4; }
.maplibregl-popup-content strong { font-size: 0.95rem; }
@media (max-width: 640px) { #ifk-world-map { height: 280px; } }
</style>

<div class="ifk-map-wrap">
  <h3>{{ if eq $lang "de" }}Interaktive Weltkarte: Kinderschutzgesetze{{ else if eq $lang "fr" }}Carte interactive : lois de protection de l'enfance{{ else }}Interactive Map: Child Protection Laws{{ end }}</h3>
  <p class="ifk-map-subtitle">{{ if eq $lang "de" }}Klicken Sie auf ein Land für Details{{ else if eq $lang "fr" }}Cliquez sur un pays pour plus de détails{{ else }}Click a country for details{{ end }}</p>
  <div id="ifk-world-map"></div>
  <div class="ifk-map-legend">
    <div class="ifk-map-legend-item"><div class="ifk-map-legend-swatch" style="background:#667eea"></div>{{ if eq $lang "de" }}In Kraft{{ else if eq $lang "fr" }}En vigueur{{ else }}Enforced{{ end }}</div>
    <div class="ifk-map-legend-item"><div class="ifk-map-legend-swatch" style="background:#764ba2"></div>{{ if eq $lang "de" }}Verabschiedet{{ else if eq $lang "fr" }}Adopté{{ else }}Passed{{ end }}</div>
    <div class="ifk-map-legend-item"><div class="ifk-map-legend-swatch" style="background:#a5b4fc"></div>{{ if eq $lang "de" }}In Bearbeitung{{ else if eq $lang "fr" }}En cours{{ else }}In Progress{{ end }}</div>
    <div class="ifk-map-legend-item"><div class="ifk-map-legend-swatch" style="background:#e0e7ff"></div>{{ if eq $lang "de" }}Richtlinien{{ else if eq $lang "fr" }}Directives{{ else }}Guidelines{{ end }}</div>
    <div class="ifk-map-legend-item"><div class="ifk-map-legend-swatch" style="background:#e2e8f0"></div>{{ if eq $lang "de" }}Keine Daten{{ else if eq $lang "fr" }}Pas de données{{ else }}No Data{{ end }}</div>
  </div>
</div>

<script src="{{ "js/maplibre-gl.min.js" | relURL }}"></script>
<script src="{{ "js/topojson-client.min.js" | relURL }}"></script>
<script>
function ifkInitMap() {
  if (typeof maplibregl === 'undefined' || typeof topojson === 'undefined') {
    setTimeout(ifkInitMap, 100);
    return;
  }
  var LANG = "{{ $lang }}";
  var STATUS_COLORS = { enforced: '#667eea', passed: '#764ba2', progress: '#a5b4fc', guidelines: '#e0e7ff' };
  var STATUS_LABELS = {
    en: { enforced: 'Enforced', passed: 'Passed', progress: 'In Progress', guidelines: 'Guidelines' },
    de: { enforced: 'In Kraft', passed: 'Verabschiedet', progress: 'In Bearbeitung', guidelines: 'Richtlinien' },
    fr: { enforced: 'En vigueur', passed: 'Adopté', progress: 'En cours', guidelines: 'Directives' }
  };

  var countries = {{ $countries | jsonify | safeJS }};
  var byIsoNum = {};
  countries.forEach(function(c) { byIsoNum[c.isoNum] = c; });

  window._ifkMap = new maplibregl.Map({
    container: 'ifk-world-map',
    style: 'https://maps.clicksports.de/styles/klokantech-basic/style.json',
    center: [20, 20],
    zoom: 2,
    minZoom: 1,
    maxZoom: 6,
    scrollZoom: false,
    attributionControl: false
  });

  window._ifkMap.addControl(new maplibregl.NavigationControl({ showCompass: false }), 'top-right');

  window._ifkMap.on('load', function() {
    // Strip base map to minimal: white land, light gray water, thin borders only
    var style = window._ifkMap.getStyle();
    style.layers.forEach(function(l) {
      if (l.id === 'background') {
        window._ifkMap.setPaintProperty(l.id, 'background-color', '#ffffff');
        return;
      }
      if (l.type === 'fill' && l.id.indexOf('water') >= 0) {
        window._ifkMap.setPaintProperty(l.id, 'fill-color', '#eef2f7');
        return;
      }
      if (l.type === 'line' && l.id.indexOf('admin') >= 0) {
        window._ifkMap.setPaintProperty(l.id, 'line-color', '#d1d5db');
        window._ifkMap.setPaintProperty(l.id, 'line-width', 0.5);
        return;
      }
      // Hide everything else
      window._ifkMap.setLayoutProperty(l.id, 'visibility', 'none');
    });

    fetch('{{ "data/countries-50m.json" | relURL }}')
      .then(function(r) { return r.json(); })
      .then(function(topo) {
        var geo = topojson.feature(topo, topo.objects.countries);

        geo.features.forEach(function(f) {
          var id = String(f.id).padStart(3, '0');
          var c = byIsoNum[id];
          f.properties.fillColor = c ? STATUS_COLORS[c.status] : '#e2e8f0';
          f.properties.fillOpacity = c ? 0.65 : 0.15;
          f.properties.isoNum = id;
        });

        window._ifkMap.addSource('countries-choropleth', { type: 'geojson', data: geo });

        // Find first label layer to insert choropleth below it
        var firstLabel;
        var layers = window._ifkMap.getStyle().layers;
        for (var i = 0; i < layers.length; i++) {
          if (layers[i].type === 'symbol' && (layers[i].id.indexOf('label') >= 0 || layers[i].id.indexOf('name') >= 0 || layers[i].id.indexOf('place') >= 0)) {
            firstLabel = layers[i].id;
            break;
          }
        }

        window._ifkMap.addLayer({
          id: 'choropleth-fill',
          type: 'fill',
          source: 'countries-choropleth',
          paint: {
            'fill-color': ['get', 'fillColor'],
            'fill-opacity': ['get', 'fillOpacity']
          }
        }, firstLabel);

        window._ifkMap.addLayer({
          id: 'choropleth-outline',
          type: 'line',
          source: 'countries-choropleth',
          paint: {
            'line-color': '#94a3b8',
            'line-width': 0.6
          }
        }, firstLabel);

        // Hide all labels except country names at zoom >= 3
        layers.forEach(function(l) {
          if (l.type === 'symbol') {
            if (l.id.indexOf('country') >= 0 || l.id.indexOf('continent') >= 0) {
              window._ifkMap.setLayerZoomRange(l.id, 3, 24);
            } else {
              window._ifkMap.setLayoutProperty(l.id, 'visibility', 'none');
            }
          }
        });

        var popup = new maplibregl.Popup({ closeButton: true, closeOnClick: false, maxWidth: '280px' });

        window._ifkMap.on('mousemove', 'choropleth-fill', function(e) {
          var id = e.features[0].properties.isoNum;
          var c = byIsoNum[id];
          window._ifkMap.getCanvas().style.cursor = c ? 'pointer' : '';
        });

        window._ifkMap.on('mouseleave', 'choropleth-fill', function() {
          window._ifkMap.getCanvas().style.cursor = '';
        });

        window._ifkMap.on('click', 'choropleth-fill', function(e) {
          var id = e.features[0].properties.isoNum;
          var c = byIsoNum[id];
          if (!c) return;
          var loc = c[LANG] || c.en;
          var labels = STATUS_LABELS[LANG] || STATUS_LABELS.en;
          popup.setLngLat(e.lngLat).setHTML(
            '<strong>' + c.flag + ' ' + loc.name + '</strong><br>' +
            '<em>' + loc.law + '</em><br>' +
            '<span style="color:' + STATUS_COLORS[c.status] + ';font-weight:600">' + labels[c.status] + '</span> (' + c.year + ')<br>' +
            loc.detail
          ).addTo(map);
        });
      });
  });
}
ifkInitMap();
</script>