import { RegisterComponent } from '@feng3d/ecs';
import { LineSegments, Material } from '../../thirdparty/three/imports';
import { BufferGeometry3D } from '../core/BufferGeometry3D';
import { Component3D } from '../core/Component3D';
import { Material3D } from '../materials/Material3D';

declare module '@feng3d/ecs'
{
    interface ComponentMap { LineSegments3D: LineSegments3D; }
}

/**
 * 包装`three`中`LineSegments`
 */
@RegisterComponent({ name: 'LineSegments3D' })
export class LineSegments3D extends Component3D
{
    declare _line: LineSegments;

    get geometry()
    {
        return this._geometry;
    }
    set geometry(v)
    {
        this._geometry = v;
        if (this._line)
        {
            this._line.geometry = this._geometry?._geometry;
        }
    }
    private _geometry: BufferGeometry3D;

    get material()
    {
        return Material3D.get(this._line.material as Material);
    }
    set material(v)
    {
        this._material = v;
        if (this._line)
        {
            this._line.material = this._material?._material;
        }
    }
    private _material: Material3D;

    get castShadow()
    {
        return this._line.castShadow;
    }
    set castShadow(v)
    {
        this._line.castShadow = v;
    }

    init()
    {
        super.init();
        this._line = new LineSegments(this._geometry?._geometry, this._material?._material);

        this._entity._group.add(this._line);
        this._entity.isLineSegments = true;
    }

    destroy(): void
    {
        this._entity._group.remove(this._line);
        this._line = null;
        this._entity.isLineSegments = false;

        super.destroy();
    }
}