import { Draw } from 'ol/interaction';
import GeometryType from 'ol/geom/GeometryType';
import Modify from 'ol/interaction/Modify';
import Select from 'ol/interaction/Select';
import MultiPoint from 'ol/geom/MultiPoint';
import Point from 'ol/geom/Point';
import {
  Fill, Stroke, Style, Circle, Text //RegularShape, Circle as CircleStyle, Text,Icon
} from 'ol/style';
import VectorSource from 'ol/source/Vector';
import VectorLayer from 'ol/layer/Vector';
import mapService from '@/services/map-service';
import { buffer } from 'ol/extent';

// device detection
const isMobile = /(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|ipad|iris|kindle|Android|Silk|lge |maemo|midp|mmp|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows (ce|phone)|xda|xiino/i.test(navigator.userAgent) 
//eslint-disable-next-line
    || /1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-/i.test(navigator.userAgent.substr(0,4));

const editionService = {
  drawnFeature: null,
  featureToEdit: null,
  editing_feature: {},
  geom_type: 'linestring',
  drawStyle: new Style({
    fill: new Fill({
      color: 'rgba(255, 255, 255, 0.2)'
    }),
    stroke: new Stroke({
      color: 'rgba(0, 0, 255, 0.5)',
      lineDash: [],
      width: 2
    }),
    image: new Circle({
      radius: 7,
      stroke: new Stroke({
        color: 'rgba(255, 0, 0, 0.5)',
        lineDash: [],
        width: 2
      }),
      fill: new Fill({
        color: 'rgba(255, 255, 255, 0.5)'
      })
    }),
    text: new Text({
      font: '12px Calibri,sans-serif',
      fill: new Fill({ color: '#000' }),
      stroke: new Stroke({
        color: '#fff',
        width: 1
      }),
      text: ''
    }),
    zIndex: 50
  }),

  setEditingFeature(feature) {
    this.editing_feature = feature;
  },

  startEditFeature(feature){
    this.editing_feature = feature;
    this.draw.setActive(false);
    this.drawSource.addFeature(feature);
    this.drawnItems.setZIndex(50);
    mapService.fitExtent(buffer(this.drawSource.getExtent(),200));
  },

  addEditionControls(geomType) {
    this.geom_type = geomType;
    this.drawSource = new VectorSource();
    this.drawnItems = new VectorLayer({
      source: this.drawSource,
      style: this.drawStyle,
      zIndex: 4000
    });
    window.olMap = mapService.getMap();
    mapService.getMap().addLayer(this.drawnItems);
    if (this.draw) {
      mapService.getMap().removeInteraction(this.draw);
    }
    let gType = GeometryType.POINT;
    if (geomType.toUpperCase().indexOf('POLYGON') >= 0) {
      gType = GeometryType.POLYGON;
    }
    else if (geomType.toUpperCase().indexOf('LINE') >= 0) {
      gType = GeometryType.LINE_STRING;
    }

    this.draw = new Draw({
      source: this.drawSource,
      type: gType,
      style: this.drawStyle,
      //geometryName: layer.getGeomAttributeName()
    });
    mapService.getMap().addInteraction(this.draw);
    this.setEditingFeature(undefined);

    this.draw.on('drawend', (evt) => {
      var feature = evt.feature;
      this.drawnFeature = feature;
      this.setEditingFeature(feature);
      this.draw.setActive(false);
    });

    this.selectForUpdate = new Select({
      style: [
        this.drawStyle,
        new Style({
          image: new Circle({
            radius: 5,
            fill: new Fill({
              color: 'orange',
            }),
          }),
          geometry: function (feature) {
            // return the coordinates of the first ring of the polygon
            const coordinates = feature.getGeometry().getCoordinates()[0];
            if (feature.getGeometry() instanceof Point){
              return feature.getGeometry();
            }
            return new MultiPoint(coordinates);
          },
        })
      ],
      filter: (feature) => {
        if (this.featureToEdit && feature.id_ === this.featureToEdit.id) {
          return true;
        } else if (this.drawnFeature && feature.ol_uid === this.drawnFeature.ol_uid) {
          return true;
        } else if (!this.drawnFeature && !this.featureToEdit) {
          return true;
        }
        return false;
      }
    });

    // On mobile stop drawing when selecting a drawn point
    if (isMobile) {
      this.selectForUpdate.on('select', () => {
        // Permet de stopper le dessin de ligne ou polygone sur mobile
        if (this.draw.getActive() && (this.draw.sketchCoords_.length > 2 || this.draw.sketchCoords_[0].length > 3)) {
          this.draw.finishDrawing();
        }
      });
    }

    this.modify = new Modify({
      style: this.drawStyle,
      features: this.selectForUpdate.getFeatures()
    });

    // je garde ce bout de code pour l'implementation a venir du snapping
    //snapping
    // var snap = new Snap({
    //  source: this.drawSource
    //});

    // This workaround allows to avoid the ol freeze
    // referenced bug : https://github.com/openlayers/openlayers/issues/6310
    // May be corrected in a future version
    this.modify.handleUpEvent_old = this.modify.handleUpEvent;
    this.modify.handleUpEvent = function (evt) {
      try {
        this.handleUpEvent_old(evt);
      } catch (ex) {
        console.log(ex);
      }
    };

    mapService.getMap().addInteraction(this.selectForUpdate);
    mapService.getMap().addInteraction(this.modify);
    // je garde ce bout de code pour l'implementation a venir du snapping
    //map.addInteraction(snap);
  },
  resetAllTools() {
    if (this.draw) {
      this.draw.setActive(false);
    }

    if (this.selectForDeletion) {
      this.removeSelectInteraction(this.selectForDeletion);

    }
    if (this.selectForUpdate) {
      this.removeSelectInteraction(this.selectForUpdate);
    }
    if (this.modify) {
      this.modify.setActive(false);
    }
  },
  removeSelectInteraction(interaction) {
    interaction.getFeatures().clear();
    interaction.setActive(false);
  },
  activeUpdateFeature() {
    this.resetAllTools();
    this.modify.setActive(true);
    this.selectForUpdate.setActive(true);
    this.selectForUpdate.getFeatures().push(this.editing_feature);

  },
  activeDeleteFeature() {
    this.resetAllTools();
    if (!this.selectForDeletion) {
      const style = new Style({
        fill: new Fill({
          color: 'rgba(255, 0, 0, 0.2)'
        }),
        stroke: new Stroke({
          color: 'rgba(255, 0, 0, 0.5)',
          width: 2
        }),
        image: new Circle({
          radius: 7,
          fill: new Fill({
            color: 'rgba(255, 0, 0, 0.5)'
          })
        }),
        text: new Text({
          font: '12px Calibri,sans-serif',
          fill: new Fill({ color: 'rgba(255, 0, 0, 0.5)' }),
        }),
        zIndex: 50
      });
      this.selectForDeletion = new Select({
        style: style,
        filter: (feature) => {
          if (this.featureToEdit && feature.id_ === this.featureToEdit.id) {
            return true;
          } else if (this.drawnFeature && feature.ol_uid === this.drawnFeature.ol_uid) {
            return true;
          } else if (!this.drawnFeature && !this.featureToEdit) {
            return true;
          }
          return false;
        }
      });
      mapService.getMap().addInteraction(this.selectForDeletion);
      // Lorsque de nouvelles features sont sélectionnées
      const selected_features = this.selectForDeletion.getFeatures();
      this.listenerKey = selected_features.on('add', (evt) => {
        var feature = evt.element;
        if (feature) {
          setTimeout(() => {
            if (confirm('Etes-vous sur de vouloir supprimer cet objet ?')) {
              // supprimer l'edition de la sélection
              this.selectForDeletion.getFeatures().clear();
              // supprimer l'edition de la carte
              this.drawSource.removeFeature(feature);
              this.editing_feature = undefined;
              this.draw.setActive(true);
              this.selectForDeletion.setActive(false);
            }
          }, 300);
        }
      });
    } else {
      this.selectForDeletion.setActive(true);
    }
  },

  setFeatureToEdit(feature) {
    this.featureToEdit = feature;
  },

  removeActiveFeatures() {
    this.drawnFeature = null;
    this.featureToEdit = null;
  }

};


export default editionService;