import Map from '../src/ol/Map.js';
import View from '../src/ol/View.js';
import Draw from '../src/ol/interaction/Draw.js';
import TileLayer from '../src/ol/layer/Tile.js';
import VectorLayer from '../src/ol/layer/Vector.js';
import _ol_source_OSM_ from '../src/ol/source/OSM.js';
import _ol_source_Vector_ from '../src/ol/source/Vector.js';

var raster = new TileLayer({
  source: new _ol_source_OSM_()
});

var source = new _ol_source_Vector_({wrapX: false});

var vector = new VectorLayer({
  source: source
});

var map = new Map({
  layers: [raster, vector],
  target: 'map',
  view: new View({
    center: [-11000000, 4600000],
    zoom: 4
  })
});

var typeSelect = document.getElementById('type');

var draw; // global so we can remove it later
function addInteraction() {
  var value = typeSelect.value;
  if (value !== 'None') {
    draw = new Draw({
      source: source,
      type: typeSelect.value
    });
    map.addInteraction(draw);
  }
}


/**
 * Handle change event.
 */
typeSelect.onchange = function() {
  map.removeInteraction(draw);
  addInteraction();
};

addInteraction();