/**
 * Export Intel map — Leaflet + clustering + rich popups
 */
window.ExportIntelMap = (function () {
  var map = null;
  var clusterLayer = null;
  var onEntityClick = null;
  var halalMode = false;
  var markersById = {};

  var HALAL_COLORS = {
    hot: '#22c55e',
    warm: '#eab308',
    mild: '#f97316',
    low: '#64748b',
  };

  var TYPE_CFG = {
    distributor:   { color: '#f59e0b', icon: '📦', label: 'Distributeur' },
    wholesaler:    { color: '#eab308', icon: '🏪', label: 'Groothandel' },
    importer:      { color: '#f97316', icon: '🚢', label: 'Importeur' },
    logistics:     { color: '#38bdf8', icon: '🚚', label: 'Logistiek' },
    contract_caterer:{ color: '#a78bfa', icon: '🏢', label: 'Cateraar' },
    restaurant:    { color: '#34d399', icon: '🍽️', label: 'Restaurant' },
    doner_shoarma: { color: '#4ade80', icon: '🥙', label: 'Döner / shoarma' },
    butcher:       { color: '#f87171', icon: '🥩', label: 'Slager' },
    foodservice:   { color: '#2dd4bf', icon: '🍴', label: 'Foodservice' },
  };

  function cfg(type) {
    return TYPE_CFG[type] || { color: '#0ea5e9', icon: '📍', label: String(type || 'entity').replace(/_/g, ' ') };
  }

  function escapeHtml(s) {
    return String(s || '')
      .replace(/&/g, '&')
      .replace(/</g, '&lt;')
      .replace(/>/g, '&gt;')
      .replace(/"/g, '&quot;');
  }

  function row(label, val, link) {
    if (!val) return '';
    var inner = link
      ? '<a href="' + escapeHtml(link) + '" target="_blank" rel="noopener">' + escapeHtml(val) + '</a>'
      : escapeHtml(val);
    return (
      '<div class="ei-popup-row">' +
        '<span class="ei-popup-k">' + escapeHtml(label) + '</span>' +
        '<span class="ei-popup-v">' + inner + '</span>' +
      '</div>'
    );
  }

  function halalColor(p) {
    var tier = p.halal_tier || 'low';
    return HALAL_COLORS[tier] || HALAL_COLORS.low;
  }

  function popupHtml(p) {
    var c = cfg(p.entity_type);
    var id = p.id;
    var web = p.website;
    if (web && !/^https?:\/\//i.test(web)) web = 'https://' + web;
    var halalRow = '';
    if (p.halal_score != null) {
      halalRow =           row('Halal kans', p.halal_score + '/100' + (halalMode ? ' · ' + (p.halal_tier || '') : ''));
    }
    var contactBits = [];
    if (p.email) contactBits.push('📧 ' + escapeHtml(p.email));
    if (p.phone) contactBits.push('📞 ' + escapeHtml(p.phone));
    var contactRow = contactBits.length
      ? '<div class="ei-popup-row"><span class="ei-popup-k">Contact</span><span class="ei-popup-v">' + contactBits.join('<br>') + '</span></div>'
      : '';
    return (
      '<div class="ei-popup-card" data-entity-id="' + escapeHtml(id) + '">' +
        '<div class="ei-popup-top">' +
          '<span class="ei-popup-badge" style="--badge-color:' + (halalMode ? halalColor(p) : c.color) + '">' + c.icon + ' ' + escapeHtml(c.label) + '</span>' +
          '<span class="ei-popup-flag">' + escapeHtml(p.country_iso2 || '') + '</span>' +
        '</div>' +
        '<h3 class="ei-popup-name">' + escapeHtml(p.name) + '</h3>' +
        '<div class="ei-popup-grid">' +
          halalRow +
          contactRow +
          row('Stad', p.city) +
          row('Adres', p.address_line) +
          row('E-mail', p.email, p.email ? 'mailto:' + p.email : null) +
          row('Telefoon', p.phone, p.phone ? 'tel:' + p.phone : null) +
          row('Website', p.website, web) +
          row('Volume', p.volume_band) +
          row('Contacten', p.contact_count > 0 ? p.contact_count + ' in registry' : null) +
          row('Confidence', p.confidence != null ? p.confidence + '%' : null) +
          row('Pipeline', p.pipeline_stage) +
        '</div>' +
        '<div class="ei-popup-actions">' +
          '<button type="button" class="ei-popup-btn" data-entity-id="' + escapeHtml(id) + '">Volledig profiel →</button>' +
        '</div>' +
      '</div>'
    );
  }

  function pinIcon(type, p) {
    var c = cfg(type);
    var color = halalMode && p && p.halal_score != null ? halalColor(p) : c.color;
    var ring = halalMode && p && p.halal_tier === 'hot' ? ' ei-pin-hot' : '';
    return L.divIcon({
      className: 'ei-pin-wrap',
      html:
        '<div class="ei-pin' + ring + '" style="--pin-color:' + color + '">' +
          '<span class="ei-pin-ring"></span>' +
          '<span class="ei-pin-icon">' + c.icon + '</span>' +
        '</div>',
      iconSize: [30, 30],
      iconAnchor: [15, 15],
      popupAnchor: [0, -16],
    });
  }

  function openEntityId(rawId) {
    var id = Number(rawId);
    if (!Number.isFinite(id)) return;
    if (onEntityClick) {
      onEntityClick(id);
      return;
    }
    try {
      document.dispatchEvent(new CustomEvent('export-intel:open-entity', { detail: { id: id } }));
    } catch (e) { /* empty */ }
  }

  function wirePopup(container) {
    if (!container) return;
    var popupRoot = container.closest('.leaflet-popup') || container;
    if (window.L && L.DomEvent) {
      L.DomEvent.disableClickPropagation(popupRoot);
      L.DomEvent.disableScrollPropagation(popupRoot);
    }
    var btn = container.querySelector('.ei-popup-btn');
    var id = btn && btn.getAttribute('data-entity-id');
    if (btn && id) {
      var onBtn = function (e) {
        if (e) {
          e.preventDefault();
          e.stopPropagation();
        }
        openEntityId(id);
      };
      if (window.L && L.DomEvent) {
        L.DomEvent.on(btn, 'click', onBtn);
        L.DomEvent.on(btn, 'mousedown', L.DomEvent.stopPropagation);
      } else {
        btn.addEventListener('click', onBtn);
        btn.addEventListener('mousedown', function (e) { e.stopPropagation(); });
      }
    }
    container.addEventListener('click', function (e) {
      if (e.target.closest('.ei-popup-btn') || e.target.closest('a')) return;
      var card = e.target.closest('[data-entity-id]');
      if (card) openEntityId(card.getAttribute('data-entity-id'));
    });
  }

  function invalidateMapSize() {
    if (!map) return;
    map.invalidateSize(true);
    setTimeout(function () { if (map) map.invalidateSize(true); }, 120);
    setTimeout(function () { if (map) map.invalidateSize(true); }, 400);
  }

  function init(containerId) {
    var el = document.getElementById(containerId);
    if (!el || !window.L) return null;
    if (map && map.getContainer() === el) {
      invalidateMapSize();
      return map;
    }
    if (map) {
      map.remove();
      map = null;
      clusterLayer = null;
    }
    map = L.map(containerId, { zoomControl: true, attributionControl: true }).setView([20, 10], 2);
    L.tileLayer('/api/map/tiles/{z}/{x}/{y}.png', {
      attribution: '&copy; OSM &copy; CARTO',
      maxZoom: 19,
    }).addTo(map);

    if (window.L.markerClusterGroup) {
      clusterLayer = L.markerClusterGroup({
        maxClusterRadius: 42,
        spiderfyOnMaxZoom: true,
        showCoverageOnHover: false,
        zoomToBoundsOnClick: true,
        iconCreateFunction: function (cluster) {
          var n = cluster.getChildCount();
          var size = n < 10 ? 'sm' : n < 50 ? 'md' : 'lg';
          return L.divIcon({
            html: '<div class="ei-cluster ei-cluster-' + size + '"><span>' + n + '</span></div>',
            className: 'ei-cluster-wrap',
            iconSize: L.point(44, 44),
          });
        },
      });
      map.addLayer(clusterLayer);
    } else {
      clusterLayer = L.layerGroup();
      map.addLayer(clusterLayer);
    }

    map.on('popupopen', function (e) {
      var root = e.popup && e.popup.getElement();
      if (!root) return;
      if (window.L && L.DomEvent) {
        L.DomEvent.disableClickPropagation(root);
        L.DomEvent.disableScrollPropagation(root);
      }
      wirePopup(root.querySelector('.leaflet-popup-content') || root);
    });

    invalidateMapSize();
    return map;
  }

  function setFeatures(geojson, opts) {
    opts = opts || {};
    if (!map || !clusterLayer) return;
    clusterLayer.clearLayers();
    markersById = {};
    var features = (geojson && geojson.features) || [];
    var markers = [];

    features.forEach(function (f) {
      var coords = f.geometry && f.geometry.coordinates;
      if (!coords) return;
      var p = f.properties || {};
      var marker = L.marker([coords[1], coords[0]], { icon: pinIcon(p.entity_type, p) });
      marker._eiId = p.id;
      if (p.id != null) markersById[p.id] = marker;
      marker.bindPopup(popupHtml(p), { maxWidth: 320, minWidth: 260, className: 'ei-leaflet-popup' });
      marker.on('dblclick', function () {
        if (onEntityClick && p.id) onEntityClick(p.id);
      });
      markers.push(marker);
    });

    if (clusterLayer.addLayers) clusterLayer.addLayers(markers);
    else markers.forEach(function (m) { clusterLayer.addLayer(m); });

    invalidateMapSize();

    if (opts.autoFit === false) {
      map.setView([20, 10], 2);
    } else if (features.length === 1) {
      var c = features[0].geometry.coordinates;
      map.setView([c[1], c[0]], 10);
    } else if (opts.autoFit && markers.length > 1 && clusterLayer.getBounds) {
      try {
        map.fitBounds(clusterLayer.getBounds(), { padding: [40, 40], maxZoom: 12 });
      } catch (e) { /* empty */ }
    }
  }

  function setHalalMode(on) {
    halalMode = !!on;
  }

  function setOnEntityClick(fn) {
    onEntityClick = fn;
  }

  function flyTo(lat, lon, zoom) {
    if (map && lat && lon) map.setView([lat, lon], zoom || 10);
  }

  function highlightEntity(id) {
    var marker = markersById[id];
    if (!marker || !map) return;
    var latlng = marker.getLatLng();
    map.setView(latlng, Math.max(map.getZoom(), 14));
    marker.openPopup();
  }

  function closePopup() {
    if (map) map.closePopup();
  }

  function destroy() {
    if (map) {
      map.remove();
      map = null;
      clusterLayer = null;
    }
  }

  if (typeof window !== 'undefined') {
    window.addEventListener('resize', function () { invalidateMapSize(); });
  }

  return { init, setFeatures, setOnEntityClick, setHalalMode, flyTo, closePopup, highlightEntity, destroy, TYPE_CFG: TYPE_CFG, cfg: cfg };
})();