import { Feature } from "../feature.mjs";
import { isHidden } from "../../utils/is-hidden.mjs";
import { defaultScaleCorrector } from "./config.mjs";
import { addScaleCorrector, globalProjectionState } from "motion-dom";
//#region src/features/layout/layout.ts
var LayoutFeature = class extends Feature {
	static {
		this.key = "layout";
	}
	constructor(state) {
		super(state);
		addScaleCorrector(defaultScaleCorrector);
	}
	updatePrevLead(isPresent) {
		const projection = this.state.visualElement.projection;
		if (projection.isPresent !== isPresent) {
			projection.isPresent = isPresent;
			if (isPresent) !projection.isLead() && projection?.promote();
			else projection.isLead() && projection?.relegate();
		}
	}
	didUpdate() {
		if (this.state.options.layout || this.state.options.layoutId || this.state.options.drag) this.state.visualElement.projection?.root?.didUpdate();
	}
	mount() {
		const options = this.state.options;
		const layoutGroup = this.state.options.layoutGroup;
		if (options.layout || options.layoutId) {
			const projection = this.state.visualElement.projection;
			if (options.layoutId) {
				const isPresent = !isHidden(this.state.element);
				projection.isPresent = isPresent;
				if (isPresent) projection?.promote();
				else projection?.relegate();
			}
			layoutGroup?.group?.add(projection);
			globalProjectionState.hasEverUpdated = true;
		}
		this.didUpdate();
	}
	unmount() {
		const layoutGroup = this.state.options.layoutGroup;
		const projection = this.state.visualElement.projection;
		if (projection) {
			if (layoutGroup?.group && (this.state.options.layout || this.state.options.layoutId)) layoutGroup.group.remove(projection);
		}
	}
	/**
	* Capture a layout snapshot. Options are always refreshed by the caller
	* before this runs (updateOptions → lifecycle hook), so the only remaining
	* signal is presence: an exiting element is treated as not present.
	*/
	getSnapshot(isPresent) {
		const projection = this.state.visualElement.projection;
		const { layout, layoutId, drag, layoutDependency } = this.state.visualElement.props;
		const prevProps = this.state.visualElement.prevProps;
		if (!projection || !layout && !layoutId && !drag) return;
		/**
		* If drag is enabled, no layoutDependency is set, or presence changed,
		* we need to update the snapshot
		*/
		if (drag || prevProps.layoutDependency !== layoutDependency || layoutDependency === void 0 || isPresent !== projection.isPresent) projection.willUpdate();
		/**
		* If presence has changed, promote or relegate the projection accordingly
		*/
		if (layoutId) this.updatePrevLead(isPresent);
		this.didUpdate();
	}
	refreshRootScroll() {
		const root = this.state.visualElement?.projection?.root;
		if (root && this.state.options.layoutId) {
			root.scroll = void 0;
			root.updateScroll?.();
		}
	}
};
//#endregion
export { LayoutFeature };