import Map from 'ol/Map';
import View from 'ol/View';
import GeoJSON from 'ol/format/GeoJSON';
import {defaults as defaultInteractions, Select, Translate} from 'ol/interaction';
import {Tile as TileLayer, Vector as VectorLayer} from 'ol/layer';
import OSM from 'ol/source/OSM';
import VectorSource from 'ol/source/Vector';


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

const vector = new VectorLayer({
  source: new VectorSource({
    url: 'data/geojson/countries.geojson',
    format: new GeoJSON()
  })
});

const select = new Select();

const translate = new Translate({
  features: select.getFeatures()
});

const map = new Map({
  interactions: defaultInteractions().extend([select, translate]),
  layers: [raster, vector],
  target: 'map',
  view: new View({
    center: [0, 0],
    zoom: 2
  })
});