$(document).ready(function () {
  const params = OSM.params();

  if (params.lat && params.lon) {
    let url = "/edit";

    if (params.editor) url += "?editor=" + params.editor;
    if (!params.zoom) params.zoom = 17;
    url += OSM.formatHash(params);

    $(".start-mapping").attr("href", url);
  } else {
    $(".start-mapping").on("click", function (e) {
      e.preventDefault();
      $(".start-mapping").addClass("loading");

      if (navigator.geolocation) {
        // handle firefox's weird implementation
        // https://bugzilla.mozilla.org/show_bug.cgi?id=675533
        window.setTimeout(manualEdit, 4000);

        navigator.geolocation.getCurrentPosition(geoSuccess, manualEdit);
      } else {
        manualEdit();
      }
    });
  }

  function geoSuccess(position) {
    window.location = "/edit" + OSM.formatHash({
      zoom: 17,
      lat: position.coords.latitude,
      lon: position.coords.longitude
    });
  }

  function manualEdit() {
    window.location = "/?edit_help=1";
  }
});