import { Point } from './data-source';
import { DrawingOptions, defaultOptions } from './options';
import { Drawing } from './drawing';
import { TwoPointDrawingPaneView } from './pane-view';


export abstract class TwoPointDrawing extends Drawing {
    _p1: Point;
    _p2: Point;
    _paneViews: TwoPointDrawingPaneView[] = [];

    constructor(
        p1: Point,
        p2: Point,
        options?: Partial<DrawingOptions>
    ) {
        super()
        this._p1 = p1;
        this._p2 = p2;
        this._options = {
            ...defaultOptions,
            ...options,
        };
    }

    setFirstPoint(point: Point) {
        this.updatePoints(point);
    }

    setSecondPoint(point: Point) {
        this.updatePoints(null, point);
    }

    public updatePoints(...points: (Point|null)[]) {
        this._p1 = points[0] || this._p1;
        this._p2 = points[1] || this._p2;
        this.requestUpdate();
    }
}