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import { useId, useCallback, useEffect } from 'react';
import { useSelector } from 'react-redux';
import { map } from './core/MapView';
import { getStatusColor } from '../common/util/formatter';
import usePersistedState from '../common/util/usePersistedState';
import { mapIconKey } from './core/preloadImages';
import { findFonts } from './core/mapUtil';
import { useAttributePreference } from '../common/util/preferences';
const MapPositions = ({ positions, onClick, showStatus }) => {
const id = useId();
const clusters = `${id}-clusters`;
const devices = useSelector((state) => state.devices.items);
const iconScale = useAttributePreference('iconScale', 1);
const [mapCluster] = usePersistedState('mapCluster', true);
const createFeature = (devices, position) => {
const device = devices[position.deviceId];
return {
id: position.id,
deviceId: position.deviceId,
name: device.name,
category: mapIconKey(device.category),
color: showStatus ? position.attributes.color || getStatusColor(device.status) : 'neutral',
};
};
const onMouseEnter = () => map.getCanvas().style.cursor = 'pointer';
const onMouseLeave = () => map.getCanvas().style.cursor = '';
const onMapClick = useCallback((event) => {
if (!event.defaultPrevented) {
onClick();
}
}, [onClick]);
const onMarkerClick = useCallback((event) => {
event.preventDefault();
const feature = event.features[0];
if (onClick) {
onClick(feature.properties.id, feature.properties.deviceId);
}
}, [onClick]);
const onClusterClick = useCallback((event) => {
event.preventDefault();
const features = map.queryRenderedFeatures(event.point, {
layers: [clusters],
});
const clusterId = features[0].properties.cluster_id;
map.getSource(id).getClusterExpansionZoom(clusterId, (error, zoom) => {
if (!error) {
map.easeTo({
center: features[0].geometry.coordinates,
zoom,
});
}
});
}, [clusters]);
useEffect(() => {
map.addSource(id, {
type: 'geojson',
data: {
type: 'FeatureCollection',
features: [],
},
cluster: mapCluster,
clusterMaxZoom: 14,
clusterRadius: 50,
});
map.addLayer({
id,
type: 'symbol',
source: id,
filter: ['!', ['has', 'point_count']],
layout: {
'icon-image': '{category}-{color}',
'icon-size': iconScale,
'icon-allow-overlap': true,
'text-field': '{name}',
'text-allow-overlap': true,
'text-anchor': 'bottom',
'text-offset': [0, -2 * iconScale],
'text-font': findFonts(map),
'text-size': 12,
},
paint: {
'text-halo-color': 'white',
'text-halo-width': 1,
},
});
map.addLayer({
id: clusters,
type: 'symbol',
source: id,
filter: ['has', 'point_count'],
layout: {
'icon-image': 'background',
'icon-size': iconScale,
'text-field': '{point_count_abbreviated}',
'text-font': findFonts(map),
'text-size': 14,
},
});
map.on('mouseenter', id, onMouseEnter);
map.on('mouseleave', id, onMouseLeave);
map.on('mouseenter', clusters, onMouseEnter);
map.on('mouseleave', clusters, onMouseLeave);
map.on('click', id, onMarkerClick);
map.on('click', clusters, onClusterClick);
map.on('click', onMapClick);
return () => {
map.off('mouseenter', id, onMouseEnter);
map.off('mouseleave', id, onMouseLeave);
map.off('mouseenter', clusters, onMouseEnter);
map.off('mouseleave', clusters, onMouseLeave);
map.off('click', id, onMarkerClick);
map.off('click', clusters, onClusterClick);
map.off('click', onMapClick);
if (map.getLayer(id)) {
map.removeLayer(id);
}
if (map.getLayer(clusters)) {
map.removeLayer(clusters);
}
if (map.getSource(id)) {
map.removeSource(id);
}
};
}, [mapCluster, clusters, onMarkerClick, onClusterClick]);
useEffect(() => {
map.getSource(id).setData({
type: 'FeatureCollection',
features: positions.filter((it) => devices.hasOwnProperty(it.deviceId)).map((position) => ({
type: 'Feature',
geometry: {
type: 'Point',
coordinates: [position.longitude, position.latitude],
},
properties: createFeature(devices, position),
})),
});
}, [devices, positions]);
return null;
};
export default MapPositions;
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