import { IRawPicture } from './model/IRawPicture';
import { PrimitiveSet } from './structure/PrimitiveSet';
import { ImageRect } from '../../maxrect-packer/geom/ImageRect';
import { autoFit } from '../utils/AutoFit';

interface ISimpleRect {
    x: number;
    y: number;
    width: number;
    height: number;
}

class _PIXIAtlasHelper {
    /**
     * rawData.fileurl || rawData.filename
     * @param rawData
     */
    getRawPath(rawData: IRawPicture): string {
        return rawData.fileurl || rawData.filename;
    }

    /**
     * EntryObject를 전부 조회하여 지정된 장면에서 사용하는 picture의 경로 set 객체를 리턴.
     * @param sceneID
     */
    getScenePathSet(sceneID: string): PrimitiveSet {
        const arrObj: any[] = Entry.container.getAllObjects();
        const pathSet = new PrimitiveSet();

        const LEN = arrObj.length;
        let LEN2;
        let pics: IRawPicture[];
        let obj: any;
        for (let i = 0; i < LEN; i++) {
            obj = arrObj[i];
            if (sceneID != obj.scene.id) {
                continue;
            }
            pics = obj.pictures;
            if (!pics || !(LEN2 = pics.length)) {
                continue;
            }
            for (let j = 0; j < LEN2; j++) {
                pathSet.put(this.getRawPath(pics[j]));
            }
        }
        return pathSet;
    }

    /**
     * 이미지별 텍스쳐 사이즈 리턴 (정수)
     * @param pic, texMaxRect
     */
    getNewImageRect(pic: IRawPicture, texMaxRect: ISimpleRect): ImageRect {
        const w = pic.dimension.width | 0;
        const h = pic.dimension.height | 0;

        const r = new ImageRect(0, 0, w, h);
        if (w > texMaxRect.width || h > texMaxRect.height) {
            autoFit.fit(texMaxRect, r, autoFit.ScaleMode.INSIDE, autoFit.AlignMode.TL);
            r.width = Math.ceil(r.width);
            r.height = Math.ceil(r.height);
            r.scaleFactor = w / r.width;
            r.scaleFactorX = w / r.width;
            r.scaleFactorY = h / r.height;
        }
        return r;
    }
}

export const PIXIAtlasHelper: _PIXIAtlasHelper = new _PIXIAtlasHelper();