import Map from '../src/ol/Map.js';
import Overlay from '../src/ol/Overlay.js';
import View from '../src/ol/View.js';
import _ol_coordinate_ from '../src/ol/coordinate.js';
import TileLayer from '../src/ol/layer/Tile.js';
import {fromLonLat, toLonLat} from '../src/ol/proj.js';
import OSM from '../src/ol/source/OSM.js';


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

const map = new Map({
  layers: [layer],
  target: 'map',
  view: new View({
    center: [0, 0],
    zoom: 2
  })
});

const pos = fromLonLat([16.3725, 48.208889]);

// Vienna marker
const marker = new Overlay({
  position: pos,
  positioning: 'center-center',
  element: document.getElementById('marker'),
  stopEvent: false
});
map.addOverlay(marker);

// Vienna label
const vienna = new Overlay({
  position: pos,
  element: document.getElementById('vienna')
});
map.addOverlay(vienna);

// Popup showing the position the user clicked
const popup = new Overlay({
  element: document.getElementById('popup')
});
map.addOverlay(popup);

map.on('click', function(evt) {
  const element = popup.getElement();
  const coordinate = evt.coordinate;
  const hdms = _ol_coordinate_.toStringHDMS(toLonLat(coordinate));

  $(element).popover('destroy');
  popup.setPosition(coordinate);
  // the keys are quoted to prevent renaming in ADVANCED mode.
  $(element).popover({
    'placement': 'top',
    'animation': false,
    'html': true,
    'content': '<p>The location you clicked was:</p><code>' + hdms + '</code>'
  });
  $(element).popover('show');
});