import { Component, createEffect, createSignal, onMount } from 'solid-js';
import { useParams, useNavigate } from '@solidjs/router';
import OlMap from 'ol/Map';
import View from 'ol/View';
import TileLayer from 'ol/layer/Tile';
import VectorLayer from 'ol/layer/Vector';
import VectorSource from 'ol/source/Vector';
import Feature from 'ol/Feature';
import Attribution from 'ol/control/Attribution';
import Rotate from 'ol/control/Rotate';
import ScaleLine from 'ol/control/ScaleLine';
import Control from 'ol/control/Control';
import { toLonLat, useGeographic as olUseGeographic } from 'ol/proj';
import DragRotate from 'ol/interaction/DragRotate';

import 'ol/ol.css';
import './Map.css';
import { Collection, VectorTile } from 'ol';
import { Point } from 'ol/geom';
import { Style, Icon, Circle, Fill } from 'ol/style';
import GetLocation, { getCurrentLocation } from '../get-location';
import ShowLocationIcon from '../get-location/ShowLocationIcon.svg';
import { Back, Forward } from '../back-forward';
import GpxImport from '../gpx-import';
import AllGpxes from '../all-gpxes';
import MapTileProvider, { mapTileProviders } from '../map-tile-provider';
import Interaction from 'ol/interaction/Interaction';
import DoubleClickZoom from 'ol/interaction/DoubleClickZoom';
import DragPan from 'ol/interaction/DragPan';
import PinchRotate from 'ol/interaction/PinchRotate';
import PinchZoom from 'ol/interaction/PinchZoom';
import KeyboardPan from 'ol/interaction/KeyboardPan';
import KeyboardZoom from 'ol/interaction/KeyboardZoom';
import MouseWheelZoom from 'ol/interaction/MouseWheelZoom';
import Cluster from 'ol/source/Cluster.js';
import * as olExtent from 'ol/extent';
import DragZoom from 'ol/interaction/DragZoom';
import Infos, { clickHandler } from '../infos';
import GpxDialog from '../gpx-dialog';
import GpxRecord from '../gpx-record';
import dispatch from '../../workers/dispatcher-main';
import { debounce, floor } from 'lodash';

import { AndroidFullScreen } from '@awesome-cordova-plugins/android-full-screen';
import Account from '../account';
import OsmFetch from '../osm-fetch';
import VectorTileLayer from 'ol/layer/VectorTile';
import VectorTileSource from 'ol/source/VectorTile.js';
import MVT from 'ol/format/MVT.js';
import style from '../gpx/styles';
import { DepartureBoard } from '@suid/icons-material';

const [getState, setState] = createSignal({
  lon: 0,
  lat: 0,
  rotation: 0,
  zoom: 0,
  provider: 'osm',
});

export { getState };

const [getMap, setMap] = createSignal<OlMap | null>(null);

export { getMap };

const Map: Component = () => {
  const navigate = useNavigate();
  const params = useParams();

  // See https://stackoverflow.com/questions/71288670/how-to-make-fullscreen-ionic-capacitor-app
  AndroidFullScreen.isImmersiveModeSupported()
    .then(() => AndroidFullScreen.immersiveMode())
    .catch(console.warn);

  if (window.plugins) {
    window.plugins.intentShim.registerBroadcastReceiver(
      {
        filterActions: ['android.intent.action.VIEW'],
      },
      function (intent: any) {
        console.log({
          caller: 'Intent broadcast receiver',
          intent,
        });
      }
    );
    window.plugins.intentShim.onIntent(function (intent: any) {
      console.log({ caller: 'Intent receiver', intent });
      const url = new URL(intent.data);
      const q = url.search;
      const [, lat, lon] = q.match(/q=([0-9.]+),([0-9.]+)/);
      const zoom = Math.min(18, getState().zoom);
      navigate(
        `/map/${getState().provider}/${lon}/${lat}/${zoom}/${
          getState().rotation
        }`
      );
    });
  } else {
    console.log({
      caller: 'Intent',
      message: "window.plugins doesn't exist",
      window,
    });
  }

  if (
    params.lat === '0' &&
    params.lon === '0' &&
    params.provider === 'osm' &&
    params.rotation === '0' &&
    params.zoom === '2'
  ) {
    dispatch({ action: 'getState' }, (error, state) => {
      if (state !== null) {
        console;
        navigate(
          `/map/${state.provider}/${state.lon}/${state.lat}/${state.zoom}/${state.rotation}`
        );
      }
    });
  }

  let target: HTMLDivElement;

  const debouncedDbSetState = debounce((state: any) => {
    console.log({ caller: 'Map / debouncedDbSetState', state });
    dispatch({ action: 'setState', params: state });
  }, 60000);

  createEffect(async () => {
    console.log({
      caller: 'Map / setState',
      params: {
        ...params,
      },
    });
    setState({
      provider: params.provider,
      lon: +params.lon,
      lat: +params.lat,
      rotation: +params.rotation,
      zoom: +params.zoom,
    });
    debouncedDbSetState(getState());
    const map = getMap();

    const layers = map?.getLayers();
    const tileLayer = layers?.item(0) as TileLayer<any> | undefined;
    if (tileLayer?.get('provider') !== params.provider) {
      tileLayer?.set('provider', params.provider, true);
      tileLayer?.setSource(mapTileProviders[params.provider].source);
    }

    const view = map?.getView();
    view?.animate({
      center: [getState().lon, getState().lat],
      rotation: getState().rotation,
      zoom: getState().zoom,
      duration: 1000,
    });
  });

  createEffect(() => {
    const location = getCurrentLocation();
    if (location) {
      console.log({
        caller: 'Map / updateLocation',
        location,
      });
      const source = getMap()
        ?.getAllLayers()
        .at(1)
        ?.getSource() as VectorSource;
      source!.clear(true);
      const point = new Point([location.lon, location.lat]);
      const style = new Style({
        image: new Icon({
          //      size: [20, 20],
          imgSize: [24, 24],
          declutterMode: 'obstacle',
          // @ts-ignore
          src: ShowLocationIcon,
        }),
      });
      const feature = new Feature({
        geometry: point,
        //      labelPoint: point,
        //      name: 'current location',
        style: style,
      });
      feature.set('type', 'current-location');
      feature.setStyle(style);
      source.addFeature(feature);
      //    source.changed();
      console.log({
        caller: 'Map / updateLocation',
        location,
        source,
        style,
        feature,
      });
    }
  });

  onMount(async () => {
    olUseGeographic();

    const changeListener = (event: any) => {
      const map = getMap();
      const view = map?.getView();
      const center = view?.getCenter();
      if (center) {
        navigate(
          `/map/${getState().provider}/${center[0]}/${
            center[1]
          }/${view?.getZoom()}/${view?.getRotation()}`
        );
      }
      console.log({
        caller: 'Map / changeListener',
        event,
        params: {
          ...params,
        },
        map,
      });
    };

    const tileLayer = new TileLayer({
      source: mapTileProviders[params.provider].source,
    });
    tileLayer.set('provider', params.provider, true);

    const vectorLayer = new VectorLayer({
      source: new VectorSource(),
      zIndex: Infinity,
    });

    const vectorTileSource = new VectorTileSource({
      format: new MVT({ featureClass: Feature }),
      url: 'https://geo.dyomedea.com/services/spain/tiles/{z}/{x}/{y}.pbf',
      maxZoom: 14,
    });

    console.log({
      caller: 'Map / projections',
      vector: vectorLayer.getSource()?.getProjection(),
      vectorTile: vectorTileSource.getProjection(),
    });

    const vectorTileLayer = new VectorTileLayer({
      source: vectorTileSource,
      style: [],
      declutter: false,
    });

    const olMap = new OlMap({
      view: new View({
        center: [+getState().lon, +getState().lat],
        zoom: +getState().zoom,
        rotation: +getState().rotation,
      }),
      layers: [tileLayer, vectorTileLayer, vectorLayer],
      target: target,
      controls: new Collection<Control>([
        new Attribution({ collapsible: true }),
        new Rotate(),
        new ScaleLine({ bar: true }),
      ]),
      moveTolerance: 10,
      interactions: new Collection<Interaction>([
        new DragRotate(),
        new DoubleClickZoom(),
        new DragPan(),
        new PinchRotate(),
        new PinchZoom(),
        new KeyboardPan(),
        new KeyboardZoom(),
        new MouseWheelZoom(),
        new DragZoom(),
      ]),
    });
    olMap.on(['moveend'], changeListener);
    olMap.on(['singleclick'], clickHandler);

    // cf https://stackoverflow.com/questions/55161380/openlayers-cluster-with-mvt-vectortilesource-impossible

    const vectorTileMirrorSource = new VectorSource();
    let featuresForZ: Feature[] = [];
    let viewZ = vectorTileLayer
      .getSource()
      .getTileGrid()
      .getZForResolution(olMap.getView().getResolution());

    const vectorMirrorRefresh = () => {
      console.log({
        caller: 'Map / Cluster / vectorMirrorRefresh',
        olMap,
        vectorMirrorLayer,
        viewZ,
        featuresForZ,
      });
      vectorTileMirrorSource.clear();
      if (featuresForZ[viewZ]) {
        vectorTileMirrorSource.addFeatures(featuresForZ[viewZ]);
        //        vectorMirrorLayer.getSource()?.refresh();
      }
      //vectorMirrorLayer.changed();
    };

    vectorTileLayer.getSource()?.on('tileloadend', (evt) => {
      const z = evt.tile.getTileCoord()[0];
      // const features = evt.tile.getFeatures();
      // features.forEach((feature: Feature) => {
      //   feature.setId(undefined);
      // });
      const features = evt.tile
        .getFeatures()
        .filter((feature: Feature) => feature.get('type') === 'poi')
        .map((feature: Feature) => {
          const center = olExtent.getCenter(feature.getGeometry().getExtent());
          const centerLonLat = toLonLat(
            center,
            olMap.getView().getProjection()
          );
          const newFeature = feature.clone();
          newFeature.setGeometry(new Point(centerLonLat));
          // console.log({
          //   caller: 'Map / Cluster / on tileloadend / new feature',
          //   feature,
          //   center,
          //   centerLonLat,
          //   newFeature,
          // });
          return newFeature;
        });
      if (!Array.isArray(featuresForZ[z])) {
        featuresForZ[z] = [];
      }
      featuresForZ[z] = featuresForZ[z].concat(features);
      // evt.tile.setFeatures([]);
      if (z === viewZ) {
        vectorMirrorRefresh();
      }
      console.log({
        caller: 'Map / Cluster / on tileloadend',
        olMap,
        z,
        viewZ,
        features,
        vectorMirrorLayer,
        featuresForZ,
      });
    });

    olMap.getView().on('change:resolution', function () {
      // use VT features from the tile z level corresponding to view resolution
      const newZ = vectorTileLayer
        .getSource()
        .getTileGrid()
        .getZForResolution(olMap.getView().getResolution());
      console.log({
        caller: 'Map / Cluster / on change:resolution',
        olMap,
        newZ,
        viewZ,
        vectorMirrorLayer,
        featuresForZ,
      });
      if (newZ !== viewZ) {
        viewZ = newZ;
        vectorMirrorRefresh();
      }
    });

    let vectorMirrorLayer = new VectorLayer({
      // source: vectorTileMirrorSource,
      source: new Cluster({
        source: vectorTileMirrorSource,
        // geometryFunction: (feature: Feature) => {
        //   // console.log({
        //   //   caller: 'Map / Cluster / geometryFunction',
        //   //   feature,
        //   // });
        //   // test data is linestrings
        //   // return new Point(
        //   //   olExtent.getCenter(feature.getGeometry().getExtent())
        //   // );
        //   if (feature.get('type') === 'poi') {
        //     return feature.getGeometry();
        //   }
        //   return null;
        // },
        createCluster: (point: Point, features: Feature[]) => {
          // console.log({
          //   caller: 'Map / Cluster / createCluster',
          //   point,
          //   features,
          // });

          // return features[0];

          return new Feature({
            geometry: point,
            features: features,
          });
        },
        distance: 100,
        minDistance: 10,
      }),
      zIndex: Infinity,
      style,
      style: function (feature) {
        // console.log({
        //   caller: 'Map / Cluster / style',
        //   feature,
        // });
        return new Style({
          image: new Circle({
            radius: feature.get('features').length * 5,
            fill: new Fill({ color: 'black' }),
          }),
        });
      },
      // style: new Style({
      //   image: new Circle({
      //     radius: 20,
      //     fill: new Fill({ color: 'black' }),
      //   }),
      // }),
    });
    olMap.addLayer(vectorMirrorLayer);

    console.log({
      caller: 'Map / projections',
      olMap,
      map: olMap.getView().getProjection(),
      vectorSource: vectorLayer.getSource()?.getProjection(),
      vectorTileMirrorSource: vectorTileMirrorSource.getProjection(),
      vectorTileSource: vectorTileSource.getProjection(),
      clusterSource: vectorMirrorLayer.getSource()?.getProjection(),
    });

    setMap(olMap);
  });

  return (
    // @ts-ignore
    <div class='ol-map' ref={target}>
      <OsmFetch map={getMap} />
      <GetLocation />
      <Forward />
      <Back />
      <GpxRecord />
      <GpxImport />
      <MapTileProvider />
      <GpxDialog />
      <Account />
      <AllGpxes map={getMap} />
      <Infos />
    </div>
  );
};

export default Map;