var geocoder, map, addressMarker, gdir, fromAddress, toAddress, myLat, myLong;

/*
LBT Mapping application to insert google maps and route planning 

*/

function initialize() {
  if (GBrowserIsCompatible()) {
    //settings
    var companyMarkerImage = "images/wastepacklogo_mini.png";
    var companyLatLng = new GLatLng(51.780155, 0.093759);
    var companyMarkerSize = new GSize(100, 36); //width, height
    
    var defaultZoomLevel  = 12;
    //end settings
    
    //setup elements
    map   = new GMap2(document.getElementById("map_canvas"));
    gdir  = new GDirections(map, document.getElementById("directions"));
    
    //error handler
    //GEvent.addListener(gdir, "error", sendToGoogle);
    
    //set company marker
    var companyMarker = createMarker(companyLatLng, companyMarkerImage, companyMarkerSize);
    var companyHTML = '<b>The Wastepack Group Ltd</b><br />Field House,<br />Station Approach,<br />Harlow,<br />Essex, <br />CM20 2EW<br /><br />t: 01279 620000<br />f: 01279 620018<br />e: <a href="mailto:info@wastepack.co.uk?Subject=Mail from website">info@wastepack.co.uk</a>' ;
    
    //set map center
    map.setCenter(companyLatLng, defaultZoomLevel);
    map.addOverlay(companyMarker);
    map.addControl(new GLargeMapControl3D());
    // map.addControl(new GNavLabelControl());
    
        GEvent.addListener(companyMarker, "click", function() {
          companyMarker.openInfoWindowHtml(companyHTML);
   });

  }
}

/*
**
* Looks up the directions, overlays route on map,
* and prints turn-by-turn to #directions.
*/

function overlayDirections(Start,End)
{

    fromAddress = Start;
    toAddress = End;

    
    var language  = "en"
    
    gdir.load("from: " + fromAddress + " to: " + toAddress, { "locale": language });
}

function usePointFromPostcode(postcode) {

    geocoder = new GClientGeocoder();

       if (geocoder) {
           geocoder.getLatLng(postcode, function(point) {
               if (!point) {
                   alert(postcode + " not found");
               } else {
                   var Lat = point.lat().toFixed(5);
                   var Long = point.lng().toFixed(5);
                   var LatLng = new GLatLng(Lat, Long);
                   var companyMarker = createGenericMarker(LatLng);
                   var map = new GMap2(document.getElementById("map_canvas"));
                   var defaultZoomLevel = 15;
                   createGenericMarker(LatLng);
                   
                   map.setCenter(LatLng, defaultZoomLevel);
                   map.addOverlay(companyMarker);
                   map.addControl(new GLargeMapControl3D());
               }
           });
        }


    }


    function usePointFromPostcodeMultiMap(postcode,mapID) {

        geocoder = new GClientGeocoder();

        if (geocoder) {
            geocoder.getLatLng(postcode, function(point) {
                if (!point) {
                    alert(postcode + " not found");
                } else {
                    var Lat = point.lat().toFixed(5);
                    var Long = point.lng().toFixed(5);
                    var LatLng = new GLatLng(Lat, Long);
                    var companyMarker = createGenericMarker(LatLng);
                    var map = new GMap2(document.getElementById(mapID));
                    var defaultZoomLevel = 15;
                    createGenericMarker(LatLng);

                    map.setCenter(LatLng, defaultZoomLevel);
                    map.addOverlay(companyMarker);
                    map.addControl(new GLargeMapControl3D());
                }
            });
        }


    }





/*
**
* Wrapper function to create/return a marker object
* with custom image
*/
function createMarker(latlng, imageURL, imageSize)
{
  
    var marker      = new GIcon(G_DEFAULT_ICON);
    marker.image    = imageURL;
    marker.iconSize = imageSize;
    var options     =  { icon: marker };    
    return new GMarker(latlng, options);

}

function createGenericMarker(latlng) {

    var marker = new GIcon(G_DEFAULT_ICON);
    var options = { icon: marker };
    return new GMarker(latlng, options);

}



/*
**
* Display error to user
*
*/
function handleErrors(){
   if (gdir.getStatus().code == G_GEO_UNKNOWN_ADDRESS)
     alert("No corresponding geographic location could be found for one of the specified addresses. This may be due to the fact that the address is relatively new, or it may be incorrect.\nError code: " + gdir.getStatus().code);
   else if (gdir.getStatus().code == G_GEO_SERVER_ERROR)
     alert("A geocoding or directions request could not be successfully processed, yet the exact reason for the failure is not known.\n Error code: " + gdir.getStatus().code);
   else if (gdir.getStatus().code == G_GEO_MISSING_QUERY)
     alert("The HTTP q parameter was either missing or had no value. For geocoder requests, this means that an empty address was specified as input. For directions requests, this means that no query was specified in the input.\n Error code: " + gdir.getStatus().code);
   else if (gdir.getStatus().code == G_GEO_BAD_KEY)
     alert("The given key is either invalid or does not match the domain for which it was given. \n Error code: " + gdir.getStatus().code);
   else if (gdir.getStatus().code == G_GEO_BAD_REQUEST)
     alert("A directions request could not be successfully parsed.\n Error code: " + gdir.getStatus().code);
   else alert("An unknown error occurred.");
}