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import { AfterViewInit, Component, OnInit, PLATFORM_ID, inject, input, output, viewChild } from '@angular/core';
import { google } from 'google-maps';
import { CityClass } from '@classes/city.class';
import { environment } from '@environments/environment';
declare const google: any; // Import Google Maps library if not already done
@Component({
selector: 'grt-g-map',
templateUrl: './g-map.component.html',
styleUrls: ['./g-map.component.scss'],
standalone: true,
})
export class GMapComponent implements OnInit, AfterViewInit {
readonly gmapElement = viewChild<any>('gmap');
readonly removeCity = output<CityClass>();
readonly addCity = output<CityClass>();
readonly mapLoaded = output<void>();
readonly pins = input<any>();
map: any;
isBrowser: any;
availableMarkers: google.maps.Marker[] = [];
selectedMarkers: google.maps.Marker[] = [];
constructor() {
const platformId = inject(PLATFORM_ID);
this.isBrowser = isPlatformBrowser(platformId);
}
ngOnInit() {
console.log('Map Initialized');
}
ngAfterViewInit() {
if (this.isBrowser) {
this.loadGoogleMapsScript()
.then(() => {
this.initMap();
this.mapLoaded.emit();
})
.catch((error: any) => console.error('Google Maps script could not be loaded.', error));
}
}
loadGoogleMapsScript(): Promise<void> {
return new Promise((resolve, reject) => {
if (window['google'] && window['google'].maps) {
resolve();
return;
}
const script = document.createElement('script');
script.src = `https://maps.googleapis.com/maps/api/js?v=weekly&key=${environment.googleMapsApiKey}`; // Replace YOUR_API_KEY with your actual API key
script.async = true;
script.defer = true;
document.head.appendChild(script);
script.onload = () => {
resolve();
};
script.onerror = (error) => {
reject(error);
};
});
}
initMap() {
const mapProp = {
center: new google.maps.LatLng(49.374092, 11.561137),
zoom: 5,
mapTypeId: google.maps.MapTypeId.ROADMAP,
};
this.map = new google.maps.Map(this.gmapElement().nativeElement, mapProp);
const pins = this.pins();
if (pins) {
pins.forEach((pin: any) => pin.setMap(this.map));
this.map.setCenter(pins[0].getPosition());
this.map.setZoom(18);
}
}
public setCenter(index: any) {
this.map.setCenter(this.pins()[index].getPosition());
}
focusAsia() {
if (this.isBrowser) {
this.map.setCenter(new google.maps.LatLng(14.372079, 102.517827));
this.map.setZoom(5);
}
}
focusEurope() {
if (this.isBrowser) {
this.map.setCenter(new google.maps.LatLng(49.374092, 11.561137));
this.map.setZoom(5);
}
}
focusAll() {
if (this.isBrowser) {
this.map.setCenter(new google.maps.LatLng(42.49807, 57.083454));
this.map.setZoom(2);
}
}
public drawSelected(cities: CityClass[]) {
if (this.isBrowser) {
if (this.selectedMarkers?.length > 0) {
this.selectedMarkers.forEach((marker) => {
marker.setMap(null);
});
}
this.selectedMarkers = [];
const bounds: any = new google.maps.LatLngBounds();
cities.forEach((city) => {
const marker = new google.maps.Marker({
position: new google.maps.LatLng(city.getLat(), city.getLng()),
icon: {
url: 'assets/images/pin_checked.svg',
size: new google.maps.Size(30, 50),
scaledSize: new google.maps.Size(30, 50),
},
map: this.map,
title: city.name,
});
marker.addListener('click', () => {
this.removeCity.emit(city);
});
this.selectedMarkers.push(marker);
bounds.extend(marker.getPosition());
});
}
}
public drawAvailable(cities: CityClass[]) {
if (this.isBrowser) {
console.log('drawing available');
if (this.availableMarkers?.length > 0) {
this.availableMarkers.forEach((marker) => {
marker.setMap(null);
});
}
this.availableMarkers = [];
const bounds: any = new google.maps.LatLngBounds();
cities.forEach((city) => {
const marker = new google.maps.Marker({
position: new google.maps.LatLng(city.getLat(), city.getLng()),
icon: {
url: 'assets/images/pin_unchecked.svg',
size: new google.maps.Size(30, 50),
scaledSize: new google.maps.Size(30, 50),
},
map: this.map,
title: city.name,
});
marker.addListener('click', () => {
this.addCity.emit(city);
});
this.availableMarkers.push(marker);
bounds.extend(marker.getPosition());
});
}
}
}
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