import Map from '../src/ol/Map.js';
import View from '../src/ol/View.js';
import Draw from '../src/ol/interaction/Draw.js';
import Modify from '../src/ol/interaction/Modify.js';
import Snap from '../src/ol/interaction/Snap.js';
import TileLayer from '../src/ol/layer/Tile.js';
import VectorLayer from '../src/ol/layer/Vector.js';
import OSM from '../src/ol/source/OSM.js';
import VectorSource from '../src/ol/source/Vector.js';
import _ol_style_Circle_ from '../src/ol/style/Circle.js';
import _ol_style_Fill_ from '../src/ol/style/Fill.js';
import _ol_style_Stroke_ from '../src/ol/style/Stroke.js';
import _ol_style_Style_ from '../src/ol/style/Style.js';

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

var source = new VectorSource();
var vector = new VectorLayer({
  source: source,
  style: new _ol_style_Style_({
    fill: new _ol_style_Fill_({
      color: 'rgba(255, 255, 255, 0.2)'
    }),
    stroke: new _ol_style_Stroke_({
      color: '#ffcc33',
      width: 2
    }),
    image: new _ol_style_Circle_({
      radius: 7,
      fill: new _ol_style_Fill_({
        color: '#ffcc33'
      })
    })
  })
});

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

var modify = new Modify({source: source});
map.addInteraction(modify);

var draw, snap; // global so we can remove them later
var typeSelect = document.getElementById('type');

function addInteractions() {
  draw = new Draw({
    source: source,
    type: typeSelect.value
  });
  map.addInteraction(draw);
  snap = new Snap({source: source});
  map.addInteraction(snap);

}

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

addInteractions();