home.page.ts

import { Component, OnInit, ViewChild, ElementRef } from '@angular/core';
import { Geolocation } from '@ionic-native/geolocation/ngx';
import { RestService } from '../rest.service';
import { Observable } from 'rxjs';
import { HttpClient, HttpHeaders } from '@angular/common/http';
import { Storage } from '@ionic/storage';


declare var H: any;

@Component({
  selector: 'app-home',
  templateUrl: 'home.page.html',
  styleUrls: ['home.page.scss'],
})

export class HomePage {
  private platform: any;
  private map: any;
  bikes = [];
  bikeApi: Observable<any>;

  private currentLocation = { lat: 0, lng: 0 };

  public is3DChecked = false;

  public tempArr = [1, 2];
  public locationArr = [{ lat: 48.778409, lng: 9.179252 },
  { lat: 48.780926, lng: 9.173456 },
  { lat: 48.775174, lng: 9.175459 },
  { lat: 48.793704, lng: 9.191112 }]

  @ViewChild("mapElement2d", { static: false })
  public mapElement2d: ElementRef;

  @ViewChild("mapElement3d", { static: false })
  public mapElement3d: ElementRef;


  //@ViewChild("mapElement", { static: false })
  //public mapElement: ElementRef;

  constructor(private geolocation: Geolocation,
    public restService: RestService,
    public httpClient: HttpClient,
    private storage: Storage) {

    this.platform = new H.service.Platform({
      'apikey': 'tiVTgBnPbgV1spie5U2MSy-obhD9r2sGiOCbBzFY2_k'
    });
  }

  ngOnInit() {
    this.getBikesList();
  }

  ngAfterViewInit() {
    setTimeout(() => {
      this.loadmap("2D");
    }, 1000);

    window.addEventListener('resize', () => this.map.getViewPort().resize());
  }

  getBikesList() {
    this.geolocation.getCurrentPosition({
      maximumAge: 1000, timeout: 5000,
      enableHighAccuracy: true
    }).then((resp) => {
      this.currentLocation.lat = resp.coords.latitude;
      this.currentLocation.lng = resp.coords.longitude;
      this.storage.get('token').then((token) => {
        let url = 'http://193.196.52.237:8081/bikes' + '?lat=' + this.currentLocation.lat + '&lng=' + this.currentLocation.lng;
        const headers = new HttpHeaders().set("Authorization", "Bearer " + token);
        this.bikeApi = this.httpClient.get(url, { headers });
        this.bikeApi.subscribe((resp) => {
          console.log('my data: ', resp);
          this.bikes = resp;
        }, (error) => console.log(error));
      });
    }, er => {
      alert('Can not retrieve Location')
    }).catch((error) => {
      alert('Error getting location - ' + JSON.stringify(error))
    });
  }

  loadmap(style) {
    // Obtain the default map types from the platform object
    var mapStyle = "raster";
    var mapElement = "mapElement2d";
    if (style === "3D") {
      mapStyle = "vector";
      mapElement = "mapElement3d";
    }
    var defaultLayers = this.platform.createDefaultLayers();
    this.map = new H.Map(
      this[mapElement].nativeElement,
      defaultLayers[mapStyle].normal.map,
      {
        zoom: 17,
        pixelRatio: window.devicePixelRatio || 1
      }
    );
    var behavior = new H.mapevents.Behavior(new H.mapevents.MapEvents(this.map));
    var ui = H.ui.UI.createDefault(this.map, defaultLayers);
    ui.removeControl("mapsettings");
    // create custom one
    var ms = new H.ui.MapSettingsControl({
      baseLayers: [{
        label: "3D", layer: defaultLayers.vector.normal.map
      }, {
        label: "Normal", layer: defaultLayers.raster.normal.map
      }, {
        label: "Satellite", layer: defaultLayers.raster.satellite.map
      }, {
        label: "Terrain", layer: defaultLayers.raster.terrain.map
      }
      ],
      layers: [{
        label: "layer.traffic", layer: defaultLayers.vector.normal.traffic
      },
      {
        label: "layer.incidents", layer: defaultLayers.vector.normal.trafficincidents
      }
      ]
    });
    ui.addControl("customized", ms);
    var mapSettings = ui.getControl('customized');
    var zoom = ui.getControl('zoom');

    mapSettings.setAlignment('top-right');
    zoom.setAlignment('left-top');
    if (style === "3D") {
      this.map.getViewModel().setLookAtData({ tilt: 60 });
    }
    this.getLocation(this.map);
    var img = ['../../../assets/images/ic_high.png', '../../../assets/images/ic_medium.png', '../../../assets/images/ic_low.png'];
    for (let i = 0; i < this.locationArr.length; i++) {
      this.addMarker(this.locationArr[i].lat, this.locationArr[i].lng, img[i % 3]);
    }
  }

  getLocation(map) {
    this.geolocation.getCurrentPosition(
      {
        maximumAge: 1000, timeout: 5000,
        enableHighAccuracy: true
      }
    ).then((resp) => {
      let lat = resp.coords.latitude
      let lng = resp.coords.longitude
      this.currentLocation.lat = resp.coords.latitude;
      this.currentLocation.lng = resp.coords.longitude;
      this.moveMapToGiven(map, lat, lng);
    }, er => {
      alert('Can not retrieve Location')
    }).catch((error) => {
      alert('Error getting location - ' + JSON.stringify(error))
    });
  }

  moveMapToGiven(map, lat, lng) {

    var icon = new H.map.Icon('../../../assets/images/icon_map_currentLocation.png');
    // Create a marker using the previously instantiated icon:
    var marker = new H.map.Marker({ lat: lat, lng: lng }, { icon: icon });

    // Add the marker to the map:
    map.addObject(marker);
    map.setCenter({ lat: lat, lng: lng });
  }

  expandBikeList() {
    for (let i = 0; i < 20; i++) {
      this.tempArr.push(i + 3);
    }
  }

  addMarker(lat, lng, img) {
    var icon = new H.map.Icon(img);
    // Create a marker using the previously instantiated icon:
    var marker = new H.map.Marker({ lat: lat, lng: lng }, { icon: icon });

    // Add the marker to the map:
    this.map.addObject(marker);
  }

  toggle3DMaps() {
    console.log(this.is3DChecked);
    if (!this.is3DChecked) {
      setTimeout(() => {
        this.loadmap("3D");
      }, 1000);
    }
  }

  enable3DMaps() {
    this.is3DChecked = true;
    setTimeout(() => {
      this.loadmap("3D");
    }, 100);
  }
}