phpvms/resources/js/maps/live_map.js

import draw_base_map from './base_map';

import { ACTUAL_ROUTE_COLOR } from './config';

import request from '../request';

// const geolib = require('geolib');
const leaflet = require('leaflet');
const rivets = require('rivets');

/**
 * Render the live map
 * @param _opts
 * @private
 */
export default (_opts) => {
  const opts = Object.assign({
    center: [29.98139, -95.33374],
    refresh_interval: 10, // seconds
    zoom: 5,
    acars_uri: '/api/acars',
    update_uri: '/api/acars/geojson',
    pirep_uri: '/api/pireps/{id}',
    pirep_link_uri: '/pireps/{id}',
    positions: null,
    render_elem: 'map',
    aircraft_icon: '/assets/img/acars/aircraft.png',
    units: 'nmi',
  }, _opts);

  const map = draw_base_map(opts);
  const aircraftIcon = leaflet.icon({
    iconUrl: opts.aircraft_icon,
    iconSize: [42, 42],
    iconAnchor: [21, 21],
  });

  /**
   * Hold the markers
   * @type {{}}
   */
  const markers_list = {};
  let pannedToCenter = false;
  let layerFlights = null;
  let layerSelFlight = null;
  let layerSelFlightFeature = null;
  let layerSelFlightLayer = null;

  const liveMapController = {
    pirep: {},
    pireps: [],
    has_data: false,
    controller: {
      focusMarker: null, // assigned below
    },
  };

  rivets.bind($('#map-info-box'), liveMapController);
  rivets.bind($('#live_flights'), liveMapController);

  function drawRoute(feature, layer, route) {
    if (layerSelFlight !== null) {
      map.removeLayer(layerSelFlight);
    }

    layerSelFlight = new L.Geodesic([], {
      weight: 5,
      opacity: 0.9,
      color: ACTUAL_ROUTE_COLOR,
      wrap: false,
    }).addTo(map);

    layerSelFlight.fromGeoJson(route.line);
    layerSelFlightFeature = feature;
    layerSelFlightLayer = layer;

    // Center on it, but only do it once, in case the map is moved
    if (!pannedToCenter) {
      map.panTo({
        lat: route.position.lat,
        lng: route.position.lon,
      });

      pannedToCenter = true;
    }
  }

  /**
   * When a flight is clicked on, show the path, etc for that flight
   * @param feature
   * @param layer
   */
  function onFlightClick(feature, layer) {
    const pirep_uri = opts.pirep_uri.replace('{id}', feature.properties.pirep_id);
    const geojson_uri = `${opts.pirep_uri.replace('{id}', feature.properties.pirep_id)}/acars/geojson`;

    /*
     * Run these in parallel:
     * 1. Get information about the PIREP and populate the bottom box/container
     * 2. Draw out the flight route
     */
    request(pirep_uri).then((response) => {
      const pirep = response.data.data;
      console.log(pirep);

      liveMapController.pirep = pirep;
    });

    request(geojson_uri).then((response) => {
      const route = response.data.data;
      console.log(route);

      drawRoute(feature, layer, route);
    });
  }

  /**
   * Focus on a specific marker
   * @param e
   * @param model
   */
  function focusMarker(e, model) {
    if (!(model.pirep.id in markers_list)) {
      console.log('marker not found in list');
      return;
    }

    const marker = markers_list[model.pirep.id];
    onFlightClick(marker[0], marker[1]);
  }

  /*
   * Assign functions to the controller
   */
  liveMapController.controller.drawRoute = drawRoute;
  liveMapController.controller.focusMarker = focusMarker;
  liveMapController.controller.onFlightClick = onFlightClick;

  const updateMap = () => {
    request(opts.acars_uri).then((response) => {
      const pireps = response.data.data;
      liveMapController.pireps = pireps;
      liveMapController.has_data = pireps.length > 0;
    });

    request({ url: opts.update_uri }).then((response) => {
      const flightGeoJson = response.data.data;

      if (layerFlights !== null) {
        layerFlights.clearLayers();
      }

      layerFlights = leaflet.geoJSON(flightGeoJson, {
        onEachFeature: (feature, layer) => {
          layer.on({
            // eslint-disable-next-line no-unused-vars
            click: (e) => {
              pannedToCenter = false;
              liveMapController.controller.onFlightClick(feature, layer);
            },
          });

          let popup_html = '';
          if (feature.properties && (feature.properties.popup !== '' && feature.properties.popup !== undefined)) {
            popup_html += feature.properties.popup;
            layer.bindPopup(popup_html);
          }

          // add to the list
          markers_list[feature.properties.pirep_id] = [feature, layer];
        },
        pointToLayer(feature, latlon) {
          return leaflet.marker(latlon, {
            icon: aircraftIcon,
            rotationAngle: feature.properties.heading,
          });
        },
      });

      layerFlights.addTo(map);

      // Reload the clicked-flight information
      if (layerSelFlight !== null) {
        liveMapController.controller.onFlightClick(layerSelFlightFeature, layerSelFlightLayer);
      }
    });
  };

  updateMap();
  setInterval(updateMap, opts.refresh_interval * 1000);
};