GP test

define([
    'dojo/dom',
    'dojo/_base/declare',
	'dojo/_base/lang',
	'dojo/on',
    'dojo/topic',
    'esri/InfoTemplate',
     'esri/SpatialReference',
    'dojo/_base/array',
    'esri/request',
    'dojo/topic',
    'esri/symbols/jsonUtils',
    'esri/InfoTemplate',
    'esri/tasks/FeatureSet',
    'esri/layers/FeatureLayer',
    'esri/tasks/Geoprocessor',
    "esri/Color",
    "esri/graphic",
    "esri/graphicsUtils",
    "esri/tasks/LinearUnit",
   "esri/symbols/SimpleMarkerSymbol",
   "esri/symbols/SimpleLineSymbol",
   "esri/symbols/SimpleFillSymbol",
    
	'dojo/domReady!'
], function (dom, declare,
	lang,
	on, 
    topic,
     InfoTemplate,
    SpatialReference, array,
    esriRequest, topic, jsonUtils,
    InfoTemplate, FeatureSet, FeatureLayer, Geoprocessor, Color,
    Graphic, graphicsUtils, LinearUnit, SimpleMarkerSymbol, SimpleLineSymbol, SimpleFillSymbol
             ) {

    return declare([_WidgetBase], {


        postCreate: function () {

            this.inherited(arguments);
            var map = this.map;


            gp = new Geoprocessor("http://sampleserver6.arcgisonline.com/ArcGIS/rest/services/Elevation/ESRI_Elevation_World/GPServer/Viewshed");
            gp.setOutputSpatialReference({
                wkid: 102100
            });
            map.on("click", computeViewShed);

            function computeViewShed(evt) {
                map.graphics.clear();
                var pointSymbol = new SimpleMarkerSymbol();
                pointSymbol.setSize(14);
                pointSymbol.setOutline(new SimpleLineSymbol(SimpleLineSymbol.STYLE_SOLID, new Color([255, 0, 0]), 1));
                pointSymbol.setColor(new Color([0, 255, 0, 0.25]));

                var graphic = new Graphic(evt.mapPoint, pointSymbol);
                map.graphics.add(graphic);

                var features = [];
                features.push(graphic);
                var featureSet = new FeatureSet();
                featureSet.features = features;
                var vsDistance = new LinearUnit();
                vsDistance.distance = 5;
                vsDistance.units = "esriMiles";
                var params = {
                    "Input_Observation_Point": featureSet,
                    "Viewshed_Distance": vsDistance
                };
                gp.execute(params, drawViewshed);
            }

            function drawViewshed(results, messages) {
                var polySymbol = new SimpleFillSymbol();
                polySymbol.setOutline(new SimpleLineSymbol(SimpleLineSymbol.STYLE_SOLID, new Color([0, 0, 0, 0.5]), 1));
                polySymbol.setColor(new Color([255, 127, 0, 0.7]));
                var features = results[0].value.features;
                console.log(features);
                topic.publish('reportQuery/populateGrid', features);
                for (var f = 0, fl = features.length; f < fl; f++) {
                    var feature = features[f];
                    feature.setSymbol(polySymbol);
                    
                    map.graphics.add(feature);
                }
                map.setExtent(graphicsUtils.graphicsExtent(map.graphics.graphics), true);
            }





        }


    })

});