import Component from "grimoirejs/ref/Node/Component";
import IAttributeDeclaration from "grimoirejs/ref/Node/IAttributeDeclaration";
import TextureSizeCalculator from "../../Util/TextureSizeCalculator";
import ResizableResourceUpdator from "./ResizableResourceUpdator";

/**
 * Base class of texture resizer
 */
export default class TextureResizerComponentBase extends Component {
    public static attributes: { [key: string]: IAttributeDeclaration } = {
        keepPow2Size: {
            converter: "Boolean",
            default: true,
        },
    };

    private _lastWidth = 0;

    private _lastHeight = 0;

    /**
     * Resize all resources on this node.
     * @param width
     * @param height
     */
    protected __resizeResources(width: number, height: number): void {
        if (this.getAttribute("keepPow2Size")) {
            let newSize = TextureSizeCalculator.getPow2Size(width, height);
            width = newSize.width;
            height = newSize.height;
        }
        if (width === this._lastWidth && height === this._lastHeight) {
            return;
        }
        this.node.getComponents(ResizableResourceUpdator)
            .forEach(resizable => resizable.resize(width, height));
        this._lastWidth = width;
        this._lastHeight = height;
    }
}