// @ts-ignore
import { Cartesian3 } from 'cesium';
import { CesiumTypes, PolygonStyle, Viewer } from '../type';
import Basic from '../bastic';

export class FreehandPolygon extends Basic {
    points: Cartesian3[] = [];
    freehand: boolean;

    constructor(cesium: CesiumTypes, viewer: Viewer, style?: PolygonStyle) {
        super(cesium, viewer, style);
        this.cesium = cesium;
        this.freehand = true;
        this.setState('drawing');
    }


    addPoint(cartesian: Cartesian3) {
        this.points.push(cartesian);
        if (this.points.length === 1) {
            this.onMouseMove();
        } else if (this.points.length > 2) {
            this.finishDrawing();
        }
    }

    updateMovingPoint(cartesian: Cartesian3) {
        this.points.push(cartesian);
        if (this.points.length > 2) {
            this.setGeometryPoints(this.points);
            this.drawPolygon();
            this.eventDispatcher.dispatchEvent('drawUpdate', cartesian);
        }
    }

    updateDraggingPoint(cartesian: Cartesian3, index: number) {
        this.points[index] = cartesian;
        this.setGeometryPoints(this.points);
        this.drawPolygon();
    }

    getPoints() {
        return this.points;
    }
}