MediaWiki:Common.js

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/* Landrace.wiki – Interactive map bootstrap (single, fixed block) */
(function () {
  var LVER = '1.9.4';
  var CDN  = 'https://unpkg.com/leaflet@' + LVER + '/dist/';

  console.log('[Landrace] Common.js boot');

  /* --- load Leaflet --- */
  function addCSS(href, id) {
    if (id && document.getElementById(id)) return;
    var l = document.createElement('link');
    l.rel = 'stylesheet'; l.href = href; if (id) l.id = id;
    document.head.appendChild(l);
  }
  function addJS(src, cb) {
    if (window.L) return cb();
    var s = document.createElement('script');
    s.src = src; s.onload = cb;
    s.onerror = function(){ console.error('[Landrace] Leaflet failed:', src); };
    document.head.appendChild(s);
  }

  /* --- UI helpers --- */
  function statusColor(s) {
    return ({
      Stable:'#2ecc71', Vulnerable:'#f1c40f',
      Endangered:'#e67e22', Critical:'#e74c3c', Lost:'#95a5a6'
    })[s] || '#3498db';
  }
  function popup(kind, p) {
    if (kind === 'accessions') {
      var t = [p.accession_id, p.local_name].filter(Boolean).join(' — ');
      var link = p.page_url ? '<br><a href="'+p.page_url+'">Open accession</a>' : '';
      return '<b>'+t+'</b><br>'+(p.status||'')+link;
    }
    return '<b>'+(p.name||'')+'</b><br>'+((p.level||kind)+' • '+(p.status||''));
  }

  function initOne(el) {
    if (el.dataset.init) return; el.dataset.init = '1';

    // Ensure height even if CSS is cached/missing
    if (el.clientHeight < 100) { el.style.height = '70vh'; }

    var map = L.map(el);
    L.tileLayer('https://tile.openstreetmap.org/{z}/{x}/{y}.png', { attribution:'© OSM' }).addTo(map);

    // Legend
    var legend = L.control({ position:'bottomleft' });
    legend.onAdd = function () {
      var div = L.DomUtil.create('div', 'lw-legend-map');
      var items = [
        ['#2ecc71','Stable'],
        ['#f1c40f','Vulnerable'],
        ['#e67e22','Endangered'],
        ['#e74c3c','Critical'],
        ['#95a5a6','Lost']
      ].map(function (x) {
        var c = x[0], l = x[1];
        return '<span class="item"><span class="dot" style="background:'+c+'"></span>'+l+'</span>';
      }).join('');
      div.innerHTML = items;
      return div;
    };
    legend.addTo(map);

    var cfg = {
      regions:     { style: function (f) { return { color: statusColor(f.properties.status), weight: 1, fillOpacity: 0.15 }; } },
      populations: { pointToLayer: function (f, ll) { return L.circleMarker(ll, { radius: 5, color: statusColor(f.properties.status) }); } },
      accessions:  { pointToLayer: function (f, ll) { return L.circleMarker(ll, { radius: 4, color: statusColor(f.properties.status) }); } }
    };

    var layers = [];
    function maybeFit() {
      try {
        var group = L.featureGroup(layers), b = group.getBounds();
        if (b && b.isValid()) { map.fitBounds(b.pad(0.15)); }
        else { map.setView([20, 85], 4); }
      } catch (e) { map.setView([20, 85], 4); }
      setTimeout(function(){ map.invalidateSize(true); }, 0);
    }

    ['regions','populations','accessions'].forEach(function (kind) {
      var url = el.dataset[kind];
      if (!url) return;
      fetch(url).then(function(r){
        if (!r.ok) throw new Error(kind+' '+r.status+' '+url);
        return r.json();
      }).then(function (g) {
        var layer = L.geoJSON(g, Object.assign({
          onEachFeature: function (f, ly) {
            var p = f.properties || {};
            ly.bindPopup(popup(kind, p));
            var title = p.accession_id || p.name || '';
            if (title) ly.bindTooltip(title, { direction:'top', offset:[0,-4], opacity:0.9 });
          }
        }, cfg[kind])).addTo(map);
        layers.push(layer);
      }).catch(function(err){
        console.error('[Landrace map]', err);
      }).finally(function(){
        if (!el.dataset.fitted) { el.dataset.fitted = '1'; maybeFit(); }
      });
    });

    if (!el.dataset.regions && !el.dataset.populations && !el.dataset.accessions) {
      map.setView([20, 85], 4);
      setTimeout(function(){ map.invalidateSize(true); }, 0);
    }
  }

  function init(root) {
    var nodes = (root || document).querySelectorAll('.lw-map');
    console.log('[Landrace] .lw-map containers:', nodes.length);
    Array.prototype.forEach.call(nodes, initOne);
  }

  addCSS(CDN + 'leaflet.css', 'leaflet-css');
  addJS(CDN + 'leaflet.js', function () {
    console.log('[Landrace] Leaflet ready:', !!window.L);
    init();
    if (window.mw && mw.hook) {
      mw.hook('wikipage.content').add(function ($c) {
        init($c && $c[0] ? $c[0] : document);
      });
    }
  });
})();