//= require qs/dist/qs

OSM.initializeContextMenu = function (map) {
  map.contextmenu.addItem({
    text: I18n.t("javascripts.context.directions_from"),
    callback: function directionsFromHere(e) {
      var precision = OSM.zoomPrecision(map.getZoom()),
          latlng = e.latlng.wrap(),
          lat = latlng.lat.toFixed(precision),
          lng = latlng.lng.toFixed(precision);

      OSM.router.route("/directions?" + Qs.stringify({
        from: lat + "," + lng,
        to: getDirectionsEndpointCoordinatesFromInput($("#route_to"))
      }));
    }
  });

  map.contextmenu.addItem({
    text: I18n.t("javascripts.context.directions_to"),
    callback: function directionsToHere(e) {
      var precision = OSM.zoomPrecision(map.getZoom()),
          latlng = e.latlng.wrap(),
          lat = latlng.lat.toFixed(precision),
          lng = latlng.lng.toFixed(precision);

      OSM.router.route("/directions?" + Qs.stringify({
        from: getDirectionsEndpointCoordinatesFromInput($("#route_from")),
        to: lat + "," + lng
      }));
    }
  });

  map.contextmenu.addItem({
    text: I18n.t("javascripts.context.add_note"),
    callback: function addNoteHere(e) {
      var precision = OSM.zoomPrecision(map.getZoom()),
          latlng = e.latlng.wrap(),
          lat = latlng.lat.toFixed(precision),
          lng = latlng.lng.toFixed(precision);

      OSM.router.route("/note/new?lat=" + lat + "&lon=" + lng);
    }
  });

  map.contextmenu.addItem({
    text: I18n.t("javascripts.context.show_address"),
    callback: function describeLocation(e) {
      var precision = OSM.zoomPrecision(map.getZoom()),
          latlng = e.latlng.wrap(),
          lat = latlng.lat.toFixed(precision),
          lng = latlng.lng.toFixed(precision);

      OSM.router.route("/search?lat=" + encodeURIComponent(lat) + "&lon=" + encodeURIComponent(lng));
    }
  });

  map.contextmenu.addItem({
    text: I18n.t("javascripts.context.query_features"),
    callback: function queryFeatures(e) {
      var precision = OSM.zoomPrecision(map.getZoom()),
          latlng = e.latlng.wrap(),
          lat = latlng.lat.toFixed(precision),
          lng = latlng.lng.toFixed(precision);

      OSM.router.route("/query?lat=" + lat + "&lon=" + lng);
    }
  });

  map.contextmenu.addItem({
    text: I18n.t("javascripts.context.centre_map"),
    callback: function centreMap(e) {
      map.panTo(e.latlng);
    }
  });

  map.on("mousedown", function (e) {
    if (e.originalEvent.shiftKey) map.contextmenu.disable();
    else map.contextmenu.enable();
  });

  function getDirectionsEndpointCoordinatesFromInput(input) {
    if (input.attr("data-lat") && input.attr("data-lon")) {
      return input.attr("data-lat") + "," + input.attr("data-lon");
    } else {
      return $(input).val();
    }
  }

  var updateMenu = function updateMenu() {
    map.contextmenu.setDisabled(2, map.getZoom() < 12);
    map.contextmenu.setDisabled(4, map.getZoom() < 14);
  };

  map.on("zoomend", updateMenu);
  updateMenu();
};