<!DOCTYPE html>
<html>
<head>

  <script type="text/javascript" src="<%= @map_domain %>/maps/api/js?sensor=false"></script> 
  <script type="text/javascript">
    // when document is ready
    $(function() { 
  
      // google maps options
      var myOptions = {
        mapTypeId: google.maps.MapTypeId.ROADMAP
      };
      var map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);
      var bounds = new google.maps.LatLngBounds();
      var lat, lng, latlng, marker, title, field1, field2, field3, field4, field5, field6, field7, field8;

      // get the data with a webservice call
      $.getJSON('<%= "#{@domain}channels/#{params[:channel_id]}/feed.json?callback=?&location=true&offset=0#{@qs}" %>', function(data) {
        // if no access
        if (data == '-1') {
          $('#chart-container').append('<%= t(:chart_no_access) %>');
        }
  
        // set channel field names
        if (data.channel.field1) { field1 = data.channel.field1; }
        if (data.channel.field2) { field2 = data.channel.field2; }
        if (data.channel.field3) { field3 = data.channel.field3; }
        if (data.channel.field4) { field4 = data.channel.field4; }
        if (data.channel.field5) { field5 = data.channel.field5; }
        if (data.channel.field6) { field6 = data.channel.field6; }
        if (data.channel.field7) { field7 = data.channel.field7; }
        if (data.channel.field8) { field8 = data.channel.field8; }

        // iterate through each feed
        $.each(data.feeds, function() {
          lat = parseFloat(this.latitude);
          lng = parseFloat(this.longitude);

          // if there is data to add
          if (lat && lng) {
            latlng = new google.maps.LatLng(lat, lng);
            title = '';
            if (this.field1) { title += field1 + ': ' + this.field1 + '\n'; }
            if (this.field2) { title += field2 + ': ' + this.field2 + '\n'; }
            if (this.field3) { title += field3 + ': ' + this.field3 + '\n'; }
            if (this.field4) { title += field4 + ': ' + this.field4 + '\n'; }
            if (this.field5) { title += field5 + ': ' + this.field5 + '\n'; }
            if (this.field6) { title += field6 + ': ' + this.field6 + '\n'; }
            if (this.field7) { title += field7 + ': ' + this.field7 + '\n'; }
            if (this.field8) { title += field8 + ': ' + this.field8 + '\n'; }
            if (this.status) { title += this.status; }
            marker = new google.maps.Marker({
                position: latlng,
                title: title
              });

            marker.setMap(map); 
            bounds.extend(latlng); 
          }

        });

        // if no latlng set, center map
        if (latlng === undefined) {
          latlng = new google.maps.LatLng(38.5111, -96.8005);
          map.setCenter(latlng);
          map.setZoom(3);
        // if only one data point, set zoom level
        } else if (data.feeds.length == 1) {
          map.setCenter(latlng);
          map.setZoom(8);
        } else {
          // extend the bounds
          map.fitBounds(bounds);
        }

        // push data every 15 seconds
        setInterval(function() {

          // get the data with a webservice call
          $.getJSON('<%= "#{@domain}channels/#{params[:channel_id]}/feed/last.json?callback=?&location=true&offset=0#{@qs}" %>', function(data) {  
            // if there is data to add
            if (data) {
              lat = parseFloat(data.latitude);
              lng = parseFloat(data.longitude);
  
              if (lat && lng) {
                latlng = new google.maps.LatLng(lat, lng);
                title = '';
                if (data.field1) { title += field1 + ': ' + data.field1 + '\n'; }
                if (data.field2) { title += field2 + ': ' + data.field2 + '\n'; }
                if (data.field3) { title += field3 + ': ' + data.field3 + '\n'; }
                if (data.field4) { title += field4 + ': ' + data.field4 + '\n'; }
                if (data.field5) { title += field5 + ': ' + data.field5 + '\n'; }
                if (data.field6) { title += field6 + ': ' + data.field6 + '\n'; }
                if (data.field7) { title += field7 + ': ' + data.field7 + '\n'; }
                if (data.field8) { title += field8 + ': ' + data.field8 + '\n'; }
                if (data.status) { title += data.status; }
                marker = new google.maps.Marker({
                    position: latlng,
                    title: title
                  });
    
                marker.setMap(map); 
              }
            }
          });

        }, 15000);

      });
    });
  </script>
</head>
<body style="padding: 0; margin: 0;">
  <div id="map_canvas" style="width: <%= params[:width] ? params[:width].to_i : @width.to_i %>px; height: <%= params[:height] ? params[:height].to_i : @height.to_i %>px;"></div>
</body>
</html>
