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import { useEffect, useState } from 'react';
import { useSelector } from 'react-redux';
import { map } from '../core/Map';
import { usePrevious } from '../../reactHelper';
const MapLiveRoutes = () => {
const id = 'liveRoute';
const selectedDeviceId = useSelector((state) => state.devices.selectedId);
const currentDeviceId = usePrevious(selectedDeviceId);
const position = useSelector((state) => state.positions.items[selectedDeviceId]);
const [route, setRoute] = useState([]);
useEffect(() => {
map.addSource(id, {
type: 'geojson',
data: {
type: 'Feature',
geometry: {
type: 'LineString',
coordinates: [],
},
},
});
map.addLayer({
source: id,
id,
type: 'line',
layout: {
'line-join': 'round',
'line-cap': 'round',
},
paint: {
'line-color': '#3bb2d0',
'line-width': 2,
},
});
return () => {
if (map.getLayer(id)) {
map.removeLayer(id);
}
if (map.getSource(id)) {
map.removeSource(id);
}
};
}, []);
useEffect(() => {
if (selectedDeviceId !== currentDeviceId) {
if (!selectedDeviceId) {
setRoute([]);
} else if (position) {
setRoute([position]);
}
} else if (position) {
const last = route.at(-1);
if (!last || (last.latitude !== position.latitude && last.longitude !== position.longitude)) {
setRoute([...route.slice(-9), position]);
}
}
}, [selectedDeviceId, currentDeviceId, position, route]);
useEffect(() => {
map.getSource(id).setData({
type: 'Feature',
geometry: {
type: 'LineString',
coordinates: route.map((item) => [item.longitude, item.latitude]),
},
});
}, [route]);
return null;
};
export default MapLiveRoutes;
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