import { RegisterComponent } from '@feng3d/ecs';
import { OrthographicCamera } from '../../thirdparty/three/imports';
import { Camera3D } from './Camera3D';

declare module '@feng3d/ecs'
{
    interface ComponentMap { OrthographicCamera3D: OrthographicCamera3D; }
}

export interface OrthographicCamera3D
{
    get _camera(): OrthographicCamera;
    set _camera(v);
}

/**
 * 3D透视摄像机，包装`three`中`PerspectiveCamera`。
 */
@RegisterComponent({ name: 'OrthographicCamera3D' })
export class OrthographicCamera3D extends Camera3D
{
    get left()
    {
        if (this._camera)
        {
            this._left = this._camera.left;
        }

        return this._left;
    }
    set left(v)
    {
        this._left = v;
        if (this._camera)
        {
            this._camera.left = this._left;
        }
    }
    private _left: number;

    get right()
    {
        if (this._camera)
        {
            this._right = this._camera.right;
        }

        return this._right;
    }
    set right(v)
    {
        this._right = v;
        if (this._camera)
        {
            this._camera.right = this._right;
        }
    }
    private _right: number;

    get top()
    {
        if (this._camera)
        {
            this._top = this._camera.top;
        }

        return this._top;
    }
    set top(v)
    {
        this._top = v;
        if (this._camera)
        {
            this._camera.top = this._top;
        }
    }
    private _top: number;

    get bottom()
    {
        if (this._camera)
        {
            this._bottom = this._camera.bottom;
        }

        return this._bottom;
    }
    set bottom(v)
    {
        this._bottom = v;
        if (this._camera)
        {
            this._camera.bottom = this._bottom;
        }
    }
    private _bottom: number;

    get near()
    {
        if (this._camera)
        {
            this._near = this._camera.near;
        }

        return this._near;
    }
    set near(v)
    {
        this._near = v;
        if (this._camera)
        {
            this._camera.near = v;
        }
    }
    private _near: number;

    get far()
    {
        if (this._camera)
        {
            this._far = this._camera.far;
        }

        return this._far;
    }
    set far(v)
    {
        this._far = v;
        if (this._camera)
        {
            this._camera.far = v;
        }
    }
    private _far: number;

    get zoom()
    {
        if (this._camera)
        {
            this._zoom = this._camera.zoom;
        }

        return this._zoom;
    }
    set zoom(v)
    {
        this._zoom = v;
        if (this._camera)
        {
            this._camera.zoom = v;
        }
    }
    private _zoom: number;

    init()
    {
        this._camera = new OrthographicCamera(this.left, this.right, this.top, this.bottom, this.near, this.far);
        this._entity.isOrthographicCamera = true;

        super.init();
    }

    destroy(): void
    {
        super.destroy();
        this._entity.isOrthographicCamera = false;
    }

    updateProjectionMatrix()
    {
        this._camera.updateProjectionMatrix();
    }
}