import { BaseDrawService } from '../../../core/draw/baseDraw';
import type { LetterTracingData } from '../generators/letter-tracing-generator';
import PictureTracingDraw from './pictureTracingDraw';
import CasePairingDraw from './casePairingDraw';
import ColumnCompareDraw from './columnCompareDraw';
import OverviewDraw from './overviewDraw';

/**
 * 字母描红绘制分发层。
 * 根据 data.mode 委托给对应的独立 DrawService 完成实际绘制。
 */
export default class LetterTracingDraw extends BaseDrawService {
    async draw(data: LetterTracingData) {
        const DrawClass = {
            'picture-tracing': PictureTracingDraw,
            'case-pairing': CasePairingDraw,
            'column-compare': ColumnCompareDraw,
            overview: OverviewDraw,
        }[data.mode];

        const delegate = new DrawClass(this.canvas, this.ctx, this.options);
        await delegate.draw(data as any);
    }
}