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path: root/modern/src/map/MapGeofenceEdit.js
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import 'mapbox-gl/dist/mapbox-gl.css';
import '@mapbox/mapbox-gl-draw/dist/mapbox-gl-draw.css';
import MapboxDraw from '@mapbox/mapbox-gl-draw';
import theme from '@mapbox/mapbox-gl-draw/src/lib/theme';
import { useEffect } from 'react';

import { useDispatch, useSelector } from 'react-redux';
import { useHistory } from 'react-router-dom';
import { map } from './core/Map';
import { geofenceToFeature, geometryToArea } from './core/mapUtil';
import { errorsActions, geofencesActions } from '../store';
import { useCatchCallback } from '../reactHelper';

const draw = new MapboxDraw({
  displayControlsDefault: false,
  controls: {
    polygon: true,
    trash: true,
  },
  userProperties: true,
  styles: [...theme, {
    id: 'gl-draw-title',
    type: 'symbol',
    filter: ['all'],
    layout: {
      'text-field': '{user_name}',
      'text-font': ['Roboto Regular'],
      'text-size': 12,
    },
    paint: {
      'text-halo-color': 'white',
      'text-halo-width': 1,
    },
  }],
});

const MapGeofenceEdit = () => {
  const dispatch = useDispatch();
  const history = useHistory();

  const geofences = useSelector((state) => state.geofences.items);

  const refreshGeofences = useCatchCallback(async () => {
    const response = await fetch('/api/geofences');
    if (response.ok) {
      dispatch(geofencesActions.refresh(await response.json()));
    } else {
      throw Error(await response.text());
    }
  }, [dispatch]);

  useEffect(() => {
    refreshGeofences();

    map.addControl(draw, 'top-left');
    return () => map.removeControl(draw);
  }, [refreshGeofences]);

  useEffect(() => {
    const listener = async (event) => {
      const feature = event.features[0];
      const newItem = { name: '', area: geometryToArea(feature.geometry) };
      draw.delete(feature.id);
      try {
        const response = await fetch('/api/geofences', {
          method: 'POST',
          headers: { 'Content-Type': 'application/json' },
          body: JSON.stringify(newItem),
        });
        if (response.ok) {
          const item = await response.json();
          history.push(`/settings/geofence/${item.id}`);
        } else {
          throw Error(await response.text());
        }
      } catch (error) {
        dispatch(errorsActions.push(error.message));
      }
    };

    map.on('draw.create', listener);
    return () => map.off('draw.create', listener);
  }, [dispatch, history]);

  useEffect(() => {
    const listener = async (event) => {
      const feature = event.features[0];
      try {
        const response = await fetch(`/api/geofences/${feature.id}`, { method: 'DELETE' });
        if (response.ok) {
          refreshGeofences();
        } else {
          throw Error(await response.text());
        }
      } catch (error) {
        dispatch(errorsActions.push(error.message));
      }
    };

    map.on('draw.delete', listener);
    return () => map.off('draw.delete', listener);
  }, [dispatch, refreshGeofences]);

  useEffect(() => {
    const listener = async (event) => {
      const feature = event.features[0];
      const item = Object.values(geofences).find((i) => i.id === feature.id);
      if (item) {
        const updatedItem = { ...item, area: geometryToArea(feature.geometry) };
        try {
          const response = await fetch(`/api/geofences/${feature.id}`, {
            method: 'PUT',
            headers: { 'Content-Type': 'application/json' },
            body: JSON.stringify(updatedItem),
          });
          if (response.ok) {
            refreshGeofences();
          } else {
            throw Error(await response.text());
          }
        } catch (error) {
          dispatch(errorsActions.push(error.message));
        }
      }
    };

    map.on('draw.update', listener);
    return () => map.off('draw.update', listener);
  }, [dispatch, geofences, refreshGeofences]);

  useEffect(() => {
    draw.deleteAll();
    Object.values(geofences).forEach((geofence) => {
      draw.add(geofenceToFeature(geofence));
    });
  }, [geofences]);

  return null;
};

export default MapGeofenceEdit;