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| import { Loader } from '@googlemaps/js-api-loader';
import { getDistanceByAddr } from '@/api/mapaddrpositions';
interface MapOptions {
center: { lat: number; lng: number };
zoom: number;
}
interface Location {
lat: number;
lng: number;
}
const loader = new Loader({
apiKey: import.meta.env.VITE_APP_MAP_KEY,
version: 'weekly',
libraries: ['places', 'geometry'],
language: 'zh-TW',
});
export function useGoogleMap() {
let _google: any = null;
const map = ref<google.maps.Map | null>(null);
const autocompeleteService = ref<google.maps.places.AutocompleteService | null>(null);
const geocoder = ref<google.maps.Geocoder | null>(null);
const polyLine = ref<google.maps.Polyline | null>(null);
const path = ref<string>('null');
let center = { lat: 0, lng: 0 };
const markers: google.maps.Marker[] = [];
let markerStart: google.maps.Marker | null = null;
let markerEnd: google.maps.Marker | null = null;
const addressFrom = ref<Location>({
lat: 25.0374865,
lng: 121.5647688,
});
const addressTo = ref<Location>({
lat: 25.0374865,
lng: 121.5647688,
});
async function initMap(mapOptions: MapOptions) {
await loader
.load()
.then((google) => {
nextTick(async () => {
_google = google;
map.value = new google.maps.Map(document.getElementById('map') as HTMLElement, mapOptions);
geocoder.value = new google.maps.Geocoder();
});
})
.catch((e) => {
console.log(e);
});
}
async function setPolyLine(startPoint: string, endPoint: string) {
const { result } = (await getDistanceByAddr({ FromAddr: startPoint, ToAddr: endPoint })) as any;
path.value = result.polyLine;
center = { lat: (result.fromLat + result.toLat) / 2, lng: (result.fromLng + result.toLng) / 2 };
drawPolyLine();
}
async function drawPolyLine() {
if (polyLine.value) {
toRaw(polyLine.value).setMap(null);
}
polyLine.value = new _google.maps.Polyline({
path: _google.maps.geometry.encoding.decodePath(path.value),
strokeColor: '#FF0000',
strokeOpacity: 0.8,
strokeWeight: 5,
map: map.value,
});
map.value!.setCenter({ lat: center.lat, lng: center.lng });
map.value!.setZoom(11);
}
async function initAutoComplete() {
await loader
.load()
.then((google) => {
nextTick(() => {
autocompeleteService.value = new window.google.maps.places.AutocompleteService();
});
})
.catch((e) => {
console.log(e);
});
}
function setMarker(lat: number, lng: number, type: string) {
const marker = new _google.maps.Marker({
map: map.value,
position: { lat, lng },
animation: _google.maps.Animation.DROP,
});
if (type === 'from') {
if (markerStart) {
markerStart.setMap(null);
}
markerStart = marker;
} else if ('to') {
if (markerEnd) {
markerEnd.setMap(null);
}
markerEnd = marker;
} else {
markers.push(marker);
}
}
function toTargetPlace(address: string, type: string) {
if (!geocoder.value) return;
geocoder.value.geocode({ address }, (results, status) => {
if (status === 'OK') {
if (type === 'from') {
addressFrom.value = {
lat: results![0].geometry.location.lat(),
lng: results![0].geometry.location.lng(),
};
} else {
addressTo.value = {
lat: results![0].geometry.location.lat(),
lng: results![0].geometry.location.lng(),
};
}
setMarker(results![0].geometry.location.lat(), results![0].geometry.location.lng(), type);
if (!map.value) return;
map.value.setCenter({
lat: results![0].geometry.location.lat(),
lng: results![0].geometry.location.lng(),
});
map.value.setZoom(16);
} else {
throw new Error(`Geocode was not successful for the following reason: ${status}`);
}
});
}
return { map, geocoder, autocompeleteService, initMap, initAutoComplete, setMarker, toTargetPlace, setPolyLine };
}
|