const propertiesArray = [{id:"12-bcv298416",pos:{lat:55.1038072,lng:-6.9486019}},{id:"125-PAUB674113",pos:{lat:54.9873922,lng:-6.831601}},{id:"133-18029714",pos:{lat:55.094928,lng:-6.892595}},{id:"133-17596853",pos:{lat:55.02407,lng:-7.082015}},{id:"140-16189852",pos:{lat:55.001216,lng:-7.298856}},{id:"140-15852463",pos:{lat:55.139839,lng:-6.946148}},{id:"140-17348070",pos:{lat:55.049438,lng:-6.948535}},{id:"140-15852440",pos:{lat:55.139839,lng:-6.946148}},{id:"140-17365774",pos:{lat:55.042446,lng:-7.03552}},{id:"140-15739213",pos:{lat:55.13932,lng:-6.945034}},{id:"140-17798259",pos:{lat:54.955028,lng:-6.9686}},{id:"140-17798369",pos:{lat:54.955028,lng:-6.9686}},{id:"140-17798279",pos:{lat:54.955028,lng:-6.9686}},{id:"140-17959197",pos:{lat:54.892494,lng:-7.016481}},{id:"140-17402893",pos:{lat:55.041652,lng:-7.024794}},{id:"140-17399954",pos:{lat:55.041652,lng:-7.024794}},{id:"140-18328306",pos:{lat:55.014362,lng:-6.99049}},{id:"122-163930",pos:{lat:55.0522857,lng:-6.9412347}},{id:"140-18380423",pos:{lat:55.042419,lng:-6.91823}},{id:"140-18400041",pos:{lat:55.015193,lng:-7.04238}},{id:"140-18407831",pos:{lat:54.892829,lng:-7.016924}},{id:"12-bcv830726",pos:{lat:55.0454563,lng:-6.9336758}},{id:"122-173436",pos:{lat:55.1046132,lng:-6.9509881}},{id:"12-bcv837584",pos:{lat:55.0388556,lng:-6.9420205}},{id:"12-bcv837589",pos:{lat:55.0388556,lng:-6.9420205}},{id:"12-bcv831796",pos:{lat:55.0343406,lng:-6.9418897}},{id:"122-178702",pos:{lat:55.0412722,lng:-7.0419465}},{id:"133-18451565",pos:{lat:55.052562,lng:-6.950934}},{id:"122-180414",pos:{lat:55.0581954,lng:-6.8910744}},{id:"122-180507",pos:{lat:55.052519,lng:-6.9426947}},{id:"133-18492873",pos:{lat:55.05289,lng:-6.932433}},{id:"133-18493700",pos:{lat:55.043617,lng:-6.951971}},{id:"140-18275663",pos:{lat:55.052284,lng:-6.941234}},{id:"122-181350",pos:{lat:55.0545318,lng:-6.937313}},{id:"12-bcv862529",pos:{lat:55.0380609,lng:-6.9322018}},{id:"12-bcv863249",pos:{lat:55.0388556,lng:-6.9420205}},{id:"133-18508217",pos:{lat:55.076866,lng:-6.965575}},{id:"140-18518351",pos:{lat:55.047546,lng:-6.927644}},{id:"133-18519178",pos:{lat:55.040279,lng:-6.950543}},{id:"140-18519554",pos:{lat:55.043258,lng:-6.92628}},{id:"122-184548",pos:{lat:55.034889,lng:-6.942875}},{id:"133-18524216",pos:{lat:55.037807,lng:-6.931971}},{id:"122-185391",pos:{lat:55.042428,lng:-7.030341}},{id:"122-185512",pos:{lat:55.051015,lng:-6.947552}},{id:"133-18539792",pos:{lat:55.046649,lng:-6.948089}},{id:"171-629472",pos:{lat:55.077993953975,lng:-6.893322051001}},{id:"171-635712",pos:{lat:55.032875914924,lng:-6.9623269718963}},{id:"171-953298",pos:{lat:55.013379348939,lng:-6.9940947520106}},{id:"171-1037666",pos:{lat:55.068046347451,lng:-6.9362679794685}},{id:"171-1040003",pos:{lat:55.040769795105,lng:-6.9342817452904}},{id:"133-18542513",pos:{lat:55.046627,lng:-6.924001}},{id:"122-186829",pos:{lat:55.045568,lng:-6.952061}},{id:"133-18546284",pos:{lat:55.023044,lng:-7.028852}},{id:"12-bcv887475",pos:{lat:55.0380444,lng:-6.944491}},{id:"133-18552181",pos:{lat:55.044769,lng:-6.921901}},{id:"140-18553031",pos:{lat:55.037952,lng:-6.945458}},{id:"133-18511070",pos:{lat:55.044647,lng:-6.943386}},];

let map; 
let markersArray = [];
let markersArrayAll = [];
let markersArrayChanged = [];
let clusterMarkersArray = [];
const infoWindow = document.querySelector(".info-window-control");
async function initMap() {  
  
  const { Map, InfoWindow } = await google.maps.importLibrary("maps","geometry");
  const { AdvancedMarkerElement } = await google.maps.importLibrary("marker");

  let sw = new google.maps.LatLng(54.019510, -8.349163);
  let ne = new google.maps.LatLng(55.343439, -5.438346);
  let bounds = new google.maps.LatLngBounds(sw, ne);

  // Map Options
  let mapOptions = {
    zoom: 14,
		mapTypeId: google.maps.MapTypeId.ROADMAP,
    mapId: "1c886fcb938b1123",
    disableDefaultUI: false,
    streetViewControl: true,
    streetViewControlOptions: {
      position: google.maps.ControlPosition.RIGHT_TOP,
    },
  };
  map = new Map(document.getElementById("area_map"), mapOptions);
  var _markerCluster = new markerClusterer.MarkerClusterer({map,algorithmOptions: { radius: 80}});
  
  buildMakers(propertiesArray, AdvancedMarkerElement, bounds, InfoWindow);
  setMapBounds(map, markersArray);
  setMapMarkers( _markerCluster, markersArray, "add");

  let ClusterChanged = "N";

  google.maps.event.addListener(map, "idle", () => {
    
      markersArray.length = 0;
      markersArrayChanged.length = 0;
  
      markersArrayAll.map((property, i) => {
        let position = { lat:property.position.lat, lng: property.position.lng };
        if(map.getBounds().contains(position)){
          markersArray.push(property);
        } else { 
          markersArrayChanged.push(property);
        }
      });
      if(markersArrayChanged.length != 0 ){
        ClusterChanged = "Y";
        setMapMarkers( _markerCluster, markersArrayChanged, "remove");
        setMapMarkers( _markerCluster, markersArray, "add");
      }
      if(markersArrayChanged.length == 0 && ClusterChanged == "Y"){
        ClusterChanged = "N";
        setMapMarkers( _markerCluster, markersArrayAll, "add");
      }
  });
  

  google.maps.event.addListener(_markerCluster, 'click', function(cluster) {
    clusterMarkersArray = []
    var markers = cluster.markers;

    for (let i in markers) {

      let position = { lat:markers[i].position.lat, lng: markers[i].position.lng };
      var clusterMarkers = clusterMarkersArray;

      for (i = 0; i < clusterMarkers.length; i++) {

        var p1 = new google.maps.LatLng(clusterMarkers[i].lat, clusterMarkers[i].lng),
        p2 = new google.maps.LatLng(position.lat, position.lng);
      
        if(p1.equals(p2)){
          var quot = 360.0 / clusterMarkersArray.length;
          var newLat = position.lat + -.00012 * Math.cos(+quot * i); //+ -.00008 * Math.cos((+quot * i) / 180 * Math.PI);  //x 
          var newLng = position.lng + -.00012 * Math.sin(+quot * i);  //+ -.0008 * Math.sin((+quot * i) / 180 * Math.PI);  //Y
          markers[i].position = {lat:newLat,lng:newLng};

        }
      }
      clusterMarkersArray.push(position);
    }
  });
}

function buildMakers(properties, AdvancedMarkerElement, bounds, InfoWindow){
  const infoWindow = new InfoWindow();
  properties.map((property, i) => {
    let position = {lat:property.pos.lat,lng:property.pos.lng};
    // check if maker is withing NI Bounds
    if(bounds.contains(position)){
      const icon = document.createElement("img");
      icon.src = "/images/pin32x.png";
      const marker = new AdvancedMarkerElement({
        map,
        position: position,
        content: icon,
        gmpClickable: true,
      });
      // Add a click listener for each marker, and set up the info window.
      marker.addListener("click", () => {
        infoWindow.close();
        markerClick(marker, property.id, infoWindow);
      });
      // check if maker is withing NI Bounds
      if(bounds.contains(position)){
        markersArray.push(marker);
        markersArrayAll.push(marker);
      } 
    }
  });  
  //console.timeEnd('build markers');
  $("#map-loading").addClass('hide');
}

function markerClick(marker, id, infoWindow){
  const request = new Request("/_search-includes/marker-info?id="+id)
  fetch(request)
  .then((response) => {
    if (response.status === 200) {
      return response.json();
    } else {
      throw new Error("Something went wrong on API server!");
    }
  })
  .then((response) => {
    const infoWindowContent = buildContent(response);
    infoWindow.setContent(infoWindowContent);
    infoWindow.open(marker.map, marker);
  })
  .catch((error) => {
    console.error(error);
  });
}

function buildContent(property){
content = `
  <div class="map-property-card">
    <a href="${property.url}" class="map-property-card--container">
      <div class="map-property-card--image">
        <img class="prop-image" loading="lazy" src="${property.img}" alt="${property.add1}, ${property.add2}" title="${property.add1}, ${property.add2}" onerror="this.onerror=null;this.src='/images/unavailable.svg';" width="" height="">
        <div class="prop-agent">
          <div class="agent-img">
            <img loading="lazy" src="${property.agent.logo}" alt="${property.agent.name}" title="${property.agent.name}" width="40" height="40">
          </div>
          <div class="agent-img agent-img-2 ${property.agent2.logo == '' ? 'u-hidden':''}">
            <img loading="lazy" src="${property.agent2.logo}" alt="${property.agent2.name}" title="${property.agent2.name}" width="40" height="40">
          </div>
        </div>
        <div class="prop-sale-status ${property.statust == "Sold" ? 'sale-sold':''} ${property.statust == "" ? 'u-hidden':''}">${property.statust}</div>
        <div class="ribbon-top left ${property.newdev != 1 ? 'u-hidden':''}" style="--d:10px;--w:150px;">New Home</div>
      </div>  
      <div class="map-property-card--info"> 
        <div class="map-property-card--top-dets"> 
          <span class="map-property-card--price">
            <span class="status">${property.pricet}</span>
            <span class="amount">${property.poa != 1 
            ? `&pound;${property.price}${
                property.sector === "RR" &&
                !["Weekly", "Per Week", "Weekly Rental Of"].includes(property.pricet)
                  ? 'pm' 
                  : ''
              }` 
            : property.price
          }</span> 
          </span>
          <ul class="map-property-card--icons">
            <li class="${property.beds > 0 ? '':'u-hidden'}" title="${property.beds} Bedroom${property.beds > 1 ? "s":""}"><span><i class="icon-bedroom"></i></span>${property.beds}</li>
            <li class="${property.reps > 0 ? '':'u-hidden'}" title="${property.reps} Reception${property.reps > 1 ? "s":""}"><span><i class="icon-reception"></i></span>${property.reps}</li>
            <li class="${property.baths > 0 ? '':'u-hidden'}" title="${property.baths} Bathroom${property.baths > 1 ? "s":""}"><span><i class="icon-bathroom"></i></span>${property.baths}</li>
          </ul>
        </div> 
        <div class="map-property-card--main-dets">
          <span class="prop-headline">${property.hline}</span>
          <h2 class="prop-address"><strong>${property.add1}</strong></h2>
          <span class="prop-address-2">${property.add2}</span>
        </div>
      </div>
    </a>
  </div>
  `;
return content;  
}

function setMapMarkers(_markerCluster, _MarkersArray, Action){
  var mc = _markerCluster;
  var ma = _MarkersArray;
  if(Action == "add"){
    mc.addMarkers(ma);
  }
  if(Action == "remove"){
    mc.removeMarkers(ma);
  }
  if(Action == "clear"){
    mc.clearMarkers();
  }
}

function setMapBounds(map, markers){
  var boundsmarkers = new google.maps.LatLngBounds();
    for (var i = 0; i < markers.length; i++) {
      let position = { lat: markers[i].position.lat, lng: markers[i].position.lng };
      boundsmarkers.extend(position);
  }
  map.fitBounds(boundsmarkers);
}